Mercury 100 EFI (4-STROKE) (1B366823 THRU 2B094995) Parts & Diagrams

OEM and aftermarket replacement parts for Mercury 100 EFI (4-STROKE). Scroll down for exploded parts diagrams (37), specifications, and maintenance reference.

Mercury 100 EFI (4-STROKE) (1B366823 THRU 2B094995) Parts & Diagrams

🔎 Mercury 100 EFI (4-STROKE) Reference Library — Exploded parts diagrams (37 diagrams), specifications, common issues, and maintenance checklist.

The Mercury 100 EFI (4-STROKE) is a 4-Stroke, Inline 4-Cylinder, EFI, SOHC outboard motor. Powers center-console boats, larger pontoons, and offshore-capable fishing craft.

Quick Reference Specifications

Specification Value
Engine Type 4-Stroke, Inline 4-Cylinder, EFI, SOHC
Horsepower 100 HP
Displacement 2064 cc
Bore x Stroke 90 mm x 81 mm
Spark Plug (Type & Gap) NGK IZFR6F-11
Engine Oil Capacity 5.2 L (5.5 quart)
Recommended Engine Oil Mercury FourStroke Oil 10W-30
Gear Case Oil Capacity 710 mL (24 fl oz)
Idle Speed (in gear) 650–700 RPM (in gear)
Full Throttle RPM Range 5000-6000
Fuel Unleaded Gasoline, 87 Octane min.

Always verify specifications against your owner's manual for your specific serial number range.

Common Issues & Recommended Parts

Below are common maintenance scenarios for the Mercury 100 EFI (4-STROKE):

  • Water Pump / Overheating: If the tell-tale stream is weak or absent, the water pump impeller likely needs replacement. Inspect annually or every 100 hours. → Recommended: Water Pump Impeller Kit
  • Engine Oil / Maintenance Light: 4-stroke engines require regular oil and filter changes. Use marine-grade oil rated for your engine. Change every 100 hours or annually. → Recommended: Oil Filter, Engine Oil
  • Fuel Injector Issues (EFI models): Rough idle or misfires may indicate clogged fuel injectors. Use fuel stabilizer and clean injectors periodically. → Recommended: Fuel Injector, Fuel Filter
  • Gear Case Oil Leak: Check lower unit seals if gear oil appears milky (water contamination). Replace seals and gaskets during lower unit service. → Recommended: Lower Unit Seal Kit, Drain Plug Gaskets
  • Anode Corrosion: Inspect sacrificial anodes regularly, especially in saltwater. Replace when 50% depleted to protect against galvanic corrosion. → Recommended: Zinc/Aluminum Anode Kit

Parts Diagrams & OEM Part Numbers

Expand the sections below to view detailed exploded parts diagrams and find the exact OEM replacement components for your Mercury 100 EFI (4-STROKE).

Accessories (1 parts) Accessories
Ref OEM Part # Part Name
- 816366A52 STEERING HANDLE KIT
Adaptor Plate (39 parts) Adaptor Plate
Ref OEM Part # Part Name
- 61-897148A08 LONG BLOCK ASSEMBLY, 115
1 881912T02 ADAPTOR PLATE ASSEMBLY
2 17-23784 PIN, Dowel
3 23-27132 BUSHING
4 21-817519A2 CHECK VALVE ASSEMBLY, Drain
5 25-19565002 GROMMET
6 8M0005405 GASKET, Adaptor Plate
7 858572T01 SUMP, Oil
8 898468A01 TUBE KIT, Exhaust
9 25-881295 O-RING
10 25-89417004 GROMMET
11 32-8M0026129 TUBE, Water Comment: X-Long SN# 1B501294 & Up
12 814080001 SEAL, Upper
13 858571T TUBE, Oil Pick Up
14 25-859082 O-RING
15 10-8M0204741 SCREW, (M6 x 20) Stainless Steel
16 10-8M0214957 SCREW, (M6 x 30)
17 8M0039073 SEAL
18 8288181 PLUG, Drain
19 27-8M0204692 GASKET
20 10-82483213 SCREW, (M6 x 60)
21 888823001 SHIFT DETENT ASSEMBLY
22 10-898442 SCREW, (M8 x 50)
23 22-479452 PLUG
24 19-8M0048148 PLUG
25 888835A1 SHIFT SHAFT
26 888840 SHIFT LINK
27 888917 ROLLER
28 23-891658 BUSHING
29 18-82053M PIN, Hair
30 12-888832 WASHER
31 12-69056 WASHER, (.255 x .620 x .030) Stainless Steel
32 18-26953 COTTER PIN
33 898844 SEAL, Exhaust Tube, Included with Exhaust Tube
34 10-8M0103805 SCREW, (M6 x 16 MM) Stainless Steel
35 19-48323 PLUG
36 898103T91 PLENUM, Exhaust
37 8M0001457 SEAL, Plenum
38 10-892073002 SHOULDER SCREW, (M6)
Alternator/Starboard Cylinder Block Components (38 parts) Alternator/Starboard Cylinder Block Components
Ref OEM Part # Part Name
- 61-897148A08 LONG BLOCK ASSEMBLY, 115
1 8M6013463 ALTERNATOR
2 897568T01 BRACKET
3 10-82130145 SCREW, (M10 x 45)
4 12-845998 WASHER, (.406 x 1.250 x .089)
5 899019 MOUNT
6 57-897574Q01 BELT
7 10-82446155 SCREW, (M10 x 55)
8 12-4002319 WASHER
9 11-826292 NUT, (M10) Brass/Nickel Plated
10 54-897559153 CLIP, (15.3 mm)
11 84-856583T12 CABLE ASSEBMLY, Ground
12 14-8M0007202 TAB WASHER, Use where Applicable
13 10-8M0103805 SCREW, (M6 x 16 MM) Stainless Steel
14 71-8M0142688 SENSOR, Oil Pressure
15 8M0001051 DIPSTICK
16 8M0090819 HOUSING ASSEMBLY, Thermostat
17 25-8M0005958 O-RING
18 54-8M0204719 CLAMP, (36.1 mm)
19 32-897668 HOSE, Thermostat Dump
20 54-850896 CLAMP, (28.6)
21 22-897670A01 FITTING ASSEMBLY, Dump
22 10-8M0103805 SCREW, (M6 x 16 MM) Stainless Steel
23 35-877761Q01 FILTER, Oil Quicksilver Branded
24 22-8M0073011 FITTING, Oil Filter
25 897126A01 BRACKET ASSEMBLY
26 25-8M0190980 GROMMET
27 23-822003 BUSHING
28 10-8M0103807 SCREW, (M6 x 25 MM) Stainless Steel
29 12-858779 WASHER, (.265 x .750 x .048)
30 54-897559 CLIP
31 897642T01 COVER, Flywheel
32 25-8M0153609 GROMMET
33 11-401386 NUT, (M6) Stainless Steel
34 17-897757 PIN
35 19-8M0087447 PLUG, (M10 x 1.5)
36 10-8M0103807 SCREW, (M6 x 25 MM) Stainless Steel
37 25-8M0153609 GROMMET
Bottom Cowl (32 parts) Bottom Cowl
Ref OEM Part # Part Name
1 100-878587A02 BOTTOM COWL ASSEMBLY, Port
2 898490 SOUND BLANKET, Port
3 8M0043364 BUMPER
4 8M0001077 GASKET, Foam, Included in bottom cowls.
5 897658T INSERT
6 10-892073002 SHOULDER SCREW, (M6)
7 100-8M0107318 BOTTOM COWL ASSEMBLY, Starboard
8 898491 SOUND BLANKET, Starboard
9 8M0043364 BUMPER
10 8M0000540 GASKET, Foam, Included in bottom cowls.
11 8M0111278 SEAL, Cowl (41.00 Inches)
12 25-889724 GROMMET
13 10-82130040 SCREW, (M6 x 40)
14 831209 RETAINER
15 898805 BOOT, Idle Exhaust
16 87-8M0235191 SWITCH, Trim
17 889740A02 HANDLE KIT
18 10-8M0103805 SCREW, (M6 x 16 MM) Stainless Steel
19 23-33589 BUSHING Comment: White/Lower - Design II
20 23-8M0001595 BUSHING, Black Comment: Upper - Design II
21 8219423 PAWL
22 12-69057 WASHER, (.281 x .734 x .063)
23 NSS NOT SOLD SEPARATE, O-Ring Comment: Order 8M0001595 - Design I
24 32-9912688 TUBING, (36.00 Inches Bulk)
25 54-816311T TIE STRAP, (8.00 Inches)
26 22-898029 FITTING, Reducer
27 22-827948 FITTING
28 32-8M0108355 HOSE, (57.00 Inches Bulk)
29 8M0039078 GROMMET
30 22-817518 TEE
31 32-881535 HOSE, (32.00 Inches)
32 12-855576 WASHER
Coastal Flush Kit, Outboard (9 parts) Coastal Flush Kit, Outboard
Ref OEM Part # Part Name
- 858566A03 FLUSH KIT, Coastal Comment: Fits 75-115 Hp, EFI FourStroke outboard engines. Serial No.1B366823 and above.
1 22-898452 FITTING
2 32-897795 HOSE
3 22-858955 CONNECTOR
4 54-816311T TIE STRAP, (8.00 Inches)
5 32-8M0108349 TUBING, (.312) (70.00 Inches Bulk)
6 22-857176 COUPLING BODY
7 19-858240 CAP
8 22-857175 COUPLING INSERT
Crankshaft, Pistons and Connecting Rods (25 parts) Crankshaft, Pistons and Connecting Rods
Ref OEM Part # Part Name
- 61-897148A08 LONG BLOCK ASSEMBLY, 115
1 400-8M0110022 CRANKSHAFT ASSEMBLY
2 25-889993001 O-ring
3 28-91800 KEY, Woodruff
4 23-8M0117004 BEARING, Thrust - Orange, Crankshaft-Lower
5 26-8M0032912 SEAL, Top Main Bearing
6 23-897498T04 BEARING, Main - Orange, Crankshaft-Upper
7 8M0103398 CHAIN, Roller Cam Drive
8 662-8M0103285 CONNECTING ROD ASSEMBLY
9 10-884441 BOLT
10 23-892005A03 BEARING, Connecting Rod - Orange
11 700-898472T01 PISTON ASSEMBLY, (Standard)
12 39-881180A02 RING SET, Piston (Standard)
13 NSS NOT SOLD SEPARATE, Oil Ring
14 NSS NOT SOLD SEPARATE, Piston Ring-Second
15 NSS NOT SOLD SEPARATE, Piston Pin
16 40-881184 CIRCLIP
17 200-897522T04 FLYWHEEL ASSEMBLY
18 10-8M0147042 BOLT, (M20 x 68 MM)
19 12-8M0090010 WASHER, 66 X 21 X 6.35 MM
20 23-896883 SPACER
21 53-896882 RING, Retaining
22 19-885348 CAP
23 26-897540 SEAL, Oil
24 53-897785 RING, Retaining
Cylinder Block (30 parts) Cylinder Block
Ref OEM Part # Part Name
- 61-897148A08 LONG BLOCK ASSEMBLY, 115
1 800-880504A12 CYLINDER BLOCK ASSEMBLY
2 8M0007889 BRACKET Comment: SN# 1B759587 & Below
3 10-8M0103815 SCREW, (M8 x 40), NOTE:No Longer included with Longblock Comment: SN# 1B759587 & Below
4 17-43044 PIN, Dowel - Without Hole (.375 x .625)
5 23-893392001 DAMPER
6 19-8M0087448 PLUG, (12 mm)
7 19-896951 PLUG, (24 mm)
8 19-8M0087449 PLUG, (14 mm)
9 12-892573001 WASHER
10 10-8M4501000 SCREW, (M10 x 342)
11 16-8M0000275 STUD, (M8 x 55)
12 11-826365 NUT, (M8)
13 16-8M0010471 STUD, (M10 x 1.5)
14 12-8M0214963 WASHER, (.406 x .750 x .105) Stainless Steel
15 11-884412 NUT
16 10-8M0103829 SCREW, (M10 x 120)
17 10-8M0193659 SCREW, (M8 x 50)
18 8M0082988 SENSOR
19 10-40011106 SCREW, (M5 x 13) Stainless Steel
20 8M0148668 SENSOR ASSEMBLY
21 25-896699 O-RING, (1.78 mm x .08 mm)
22 27-8M0024565 GASKET Comment: SN# 1B494360 & Up
23 880559 GUIDE, Fixed
24 880557 GUIDE, Moveable
25 10-892456045 SCREW
26 27-8M0024563 GASKET, Block to Adaptor Comment: SN# 1B500084 & Up
27 19-891953 PLUG, (18 mm)
28 10-895810070 SCREW, (M8 x 70)
29 10-895810090 SCREW, (M8 x 90)
Cylinder Head and Camshaft (53 parts) Cylinder Head and Camshaft
Ref OEM Part # Part Name
- 61-897148A08 LONG BLOCK ASSEMBLY, 115
1 900-8M0110154 CYLINDER HEAD ASSEMBLY
2 19-889767 PLUG, (12 mm)
3 19-891953 PLUG, (18 mm)
4 19-896951 PLUG, (24 mm)
5 19-8M0087446 PLUG, (10 mm)
6 10-8M0163131 BOLT, (M6 x 36 MM)
7 880533 SEAT, Intake Valve
8 8M0089477 SEAT, Exhaust Valve
9 880537 GUIDE, Intake and Exhaust Valves
10 NSS NOT SOLD SEPARATE, CAP
11 17-880524 PIN, Dowel (14 mm)
12 20-898908 VALVE, Exhaust Comment: SN# 1B493702 & Up
13 26-8M0214986 SEAL, Valve
14 24-8M0011503 SPRING, Intake and Exhaust Valve
15 8M0908500 RETAINER ASSEMBLY, Valves
16 28-880543 KEY
17 20-898907 VALVE, Intake Comment: SN# 1B493702 & Up
18 400-898397A02 CAMSHAFT ASSEMBLY, Intake 75/80/90/100
19 400-898077A02 CAMSHAFT ASSEMBLY, Exhaust
20 88054835 TAPPET Comment: (3.721)
21 10-892454030 SCREW, (M6 x 30) Comment: SN# 1B733388 & Below
22 880553A07 COVER ASSEMBLY, Cam Comment: SN# 1B733389 & Up
23 892893 SEAL
24 892584 SEAL
25 8M0010552 PLATE ASSEMBLY, Coil Comment: SN# 0P512813 & Up
26 859578A1 PLUG ASSEMBLY, Oil
27 25-8M0204673 O-RING, (.921 x .139)
28 880558 GUIDE, Short Comment: SN# 1B733388 & Below
29 10-8M0103817 SCREW, (M8 x 60)
30 43-880550 SPROCKET, Cam Drive
31 10-8M0021532 SCREW, (M12 x 40)
32 898463A01 TENSIONER ASSEMBLY
33 25-898836 O-RING, Orange
34 1100-8M0064752 END CAP, Tensioner
35 10-8M0103807 SCREW, (M6 x 25 MM) Stainless Steel
36 10-8M0103809 SCREW, (M6 x 40 MM) Stainless Steel
37 54-888988019 CLAMP, (22.6 mm)
38 32-897673A01 HOSE ASSEMBLY, Breather
39 339-880615T01 COIL ASSEMBLY
40 10-8M0103807 SCREW, (M6 x 25 MM) Stainless Steel
41 33-8M0157328 SPARK PLUG, (NGK#LFR4A)
42 54-899145 CLIP, Tie Strap
43 10-8M0103807 SCREW, (M6 x 25 MM) Stainless Steel
44 10-8M0103804 SCREW, (M6 x 12 MM) Stainless Steel
45 54-8M0024808 J CLIP
46 13-93702 WASHER, (.250 External Star)
47 12-8M0008232 WASHER
48 10-88552585 SCREW, (M6 x 85 MM) Stainless Steel Comment: SN# 0P512813 & Up
49 25-8M0119617 RING, Rubber, Anti-Rotation
50 37-8M0008936 DECAL, Coil Screw Torque
51 8M0011987 SENSOR ASSEMBLY
52 10-8M0103805 SCREW, (M6 x 16 MM) Stainless Steel
Driveshaft Housing (22 parts) Driveshaft Housing
Ref OEM Part # Part Name
1 1507-858576T2 HOUSING, Driveshaft
2 16-9035015 STUD, (M10 x 227) Comment: X-Long
3 16-8M0034462 STUD, (M10 x 190) Comment: X-Long
4 12-8M0214963 WASHER, (.406 x .750 x .105) Stainless Steel
5 11-40140 NUT, (M10)
6 22-85822A15 PICKUP ASSEMBLY, Speedometer
7 22-433351 CONNECTOR, 90 Degree - With Vibraseal
8 22-85822T CONNECTOR, Straight
9 898801 MOUNT
10 10-897925 SCREW, (M12 x 145)
11 11-897926 NUT, (M12), Nylon Insert
12 88238A10 CABLE ASSEMBLY, Ground, To Swivel Bracket
13 10-41508 SCREW, (.250-20 x .500) Stainless Steel
14 858916T CLAMP
15 10-889833025 SCREW, (M8 x 25 MM)
16 8M0142713 CAP
17 22-855622 FITTING, Elbow
18 12092A3 SPACER KIT Comment: X-Long
19 17-43044 PIN, Dowel - Without Hole (.375 x .625) Comment: X-Long
20 23-813745 SPACER Comment: X-Long
21 88238T22 CABLE ASSEMBLY
22 8M0009134 STRAP, Continuity, Lower Yoke
Electrical Components (25 parts) Electrical Components
Ref OEM Part # Part Name
- 61-897148A08 LONG BLOCK ASSEMBLY, 115
1 NSS NOT SOLD SEPARATE, Electricl Plate Assembly-Complete
2 23-8502341 BUSHING
3 25-833155 GROMMET
4 12-817274 WASHER, (.344 x 1.00 x .063) Stainless Steel
5 10-8M0103814 SCREW, (M8 x 35 MM)
6 10-8M0103807 SCREW, (M6 x 25 MM) Stainless Steel
7 12-65567 WASHER, (.265 x .750 x .048) Stainless Steel
8 50-879345T77 STARTER MOTOR ASSEMBLY, Complete Comment: SN# 1B759588 & Up
9 8M0083213 ECM, Engine Control Module - 115 EU Comment: SN# USA-1B501342/BEL-0P519764 & Up
10 10-8M0103807 SCREW, (M6 x 25 MM) Stainless Steel
11 12-65567 WASHER, (.265 x .750 x .048) Stainless Steel
12 25-8M0190980 GROMMET
13 23-856954 BUSHING
14 858953 BRACKET
15 84-858414A04 CABLE ASSEMBLY, Brass
16 12-8M0204649 WASHER, (.281 x .500 x .060) Stainless Steel
17 10-8M0103805 SCREW, (M6 x 16 MM) Stainless Steel
18 11-400213 NUT, (M8) Stainless Steel
19 13-8M0204647 LOCKWASHER, (.312)
20 17-897757 PIN
21 54-816311T TIE STRAP, (8.00 Inches)
22 84-88439A26 CABLE ASSEMBLY, Battery - Negative
23 10-88552612 SCREW, (M8 x 12)
24 54-891520001 CLIP
Electrical Plate Component, Serial Number 1B723942 and Below (30 parts) Electrical Plate Component, Serial Number 1B723942 and Below
Ref OEM Part # Part Name
- 858754 COVER, Fuse
1 897619T01 PLATE, Electrical
2 23-856954 BUSHING
3 25-8M0190980 GROMMET
4 54-879962 CLIP
5 89-817109A2 SOLENOID ASSEMBLY, (#10-32 / .3125-18 Terminals)
6 25-822179 GROMMET
7 10-82129125 SCREW, (M6 x 25 MM)
8 10-32,11-45076 NUT, Brass
9 10-32,11-813938 CAP NUT,
10 54-859172 CLAMP
11 84-892579T13 HARNESS ASSEMBLY, Engine
12 13-8M0204647 LOCKWASHER, (.312)
13 11-8M0204668 NUT, (.312-18)
14 85-880787 BOOT, Insulator - Yellow
15 8M0214940 TIE STRAP, (5.50 Inches)
16 84-819514T24 HARNESS ASSEMBLY, Trim
17 84-93388T21 CABLE ASSEMBLY, Black
18 54-899145 CLIP, Tie Strap
19 54-898454 CLIP, (19 mm)
20 8M0219830 RELAY
21 86-865205 CLIP
22 85-875302A1 HOT STUD ASSEMBLY
23 11-400213 NUT, (M8) Stainless Steel
24 84-93388T20 CABLE ASSEMBLY, Black
25 84-878231T05 HARNESS ASSEMBLY, Fuse
26 11-400213 NUT, (M8) Stainless Steel
27 84-88439A46 CABLE ASSEMBLY, Battery - Positive
28 12-85172 WASHER
29 NSS NOT SOLD SEPARATE, Tag-Battery
Electrical Plate Components, Serial Number 1B723943 and Up (30 parts) Electrical Plate Components, Serial Number 1B723943 and Up
Ref OEM Part # Part Name
- 858754 COVER, Fuse
1 897619T01 PLATE, Electrical
2 23-856954 BUSHING
3 25-8M0190980 GROMMET
4 54-879962 CLIP
5 893768T PLATE
6 10-82129114 SCREW, (M6 x 14)
7 10-82129125 SCREW, (M6 x 25 MM)
8 8M0010250 BRACKET
9 825096T01 SOLENOID, Starter
10 54-859172 CLAMP
11 84-892579T14 HARNESS ASSEMBLY, Engine
12 13-8M0204647 LOCKWASHER, (.312)
13 11-401386 NUT, (M6) Stainless Steel
14 85-880787 BOOT, Insulator - Yellow
15 54-816311T TIE STRAP, (8.00 Inches)
16 84-819514T27 HARNESS ASSEMBLY, Trim
17 84-93388T22 CABLE ASSEMBLY, Black
18 54-899145 CLIP, Tie Strap
19 54-898454 CLIP, (19 mm)
20 8M0219830 RELAY
21 86-865205 CLIP
22 85-875302A1 HOT STUD ASSEMBLY
23 11-400213 NUT, (M8) Stainless Steel
24 84-93388T20 CABLE ASSEMBLY, Black
25 84-878231T05 HARNESS ASSEMBLY, Fuse
26 11-400213 NUT, (M8) Stainless Steel
27 84-88439A46 CABLE ASSEMBLY, Battery - Positive
28 12-85172 WASHER
29 NSS NOT SOLD SEPARATE, Tag-Battery
Extension Kit-5 Inch, Driveshaft Housing 12092A19 (19 parts) Extension Kit-5 Inch, Driveshaft Housing 12092A19
Ref OEM Part # Part Name
- 12092A19 EXTENSION KIT, Driveshaft - 5 Inch /128 mm
1 12092A3 SPACER KIT
2 17-8M0084244 PIN, Dowel - With Hole (.375 x .625)
3 17-43044 PIN, Dowel - Without Hole (.375 x .625)
4 16-903503 STUD, (M10 x 190)
5 16-903502 STUD, (M10 x 227)
6 12-8M0214963 WASHER, (.406 x .750 x .105) Stainless Steel
7 11-40140 NUT, (M10)
8 25-8M0214974 O-RING, (3.609 x .139)
9 26-8M0204693 SEAL
10 32-8M4501430 TUBE, Water
11 430232 SEAL
12 27-8172771 GASKET
13 27-430331 GASKET
14 27-8M0214931 GASKET
15 45-897680T01 DRIVESHAFT ASSEMBLY, X-Long
16 884565A00 SHIFT SHAFT ASSEMBLY
17 53-29641 E RING
18 25-8M0204681 O-RING, (1.424 x .103)
Fuel Supply Module (21 parts) Fuel Supply Module
Ref OEM Part # Part Name
- 889283A01 TOOL KIT, Fuel Priming
1 84-8M0130898 HARNESS ASSEMBLY
2 53-880596515 CLIP
3 25-855362001 GROMMET
4 23-855364 BUSHING
5 880596T50 COVER KIT
6 10-880596513 SCREW
7 880596503 REGULATOR, With O-Rings
8 54-880596512 CLAMP
9 32-880596A05 HOSE
10 8M6000359 FLOAT
11 880596T55 PUMP ASSEMBLY, Fuel - High Pressure
12 880596506 SEAL
13 26-880596507 SEAL
14 26-880596510 SEAL
15 880596T58 PUMP KIT, Fuel - Lift
16 880596509 ISOLATOR
17 26-880596502 SEAL
18 880596523 HOUSING ASSEMBLY
19 19-880596516 PLUG
20 25-880596517 O-RING
Fuel Supply Module Hoses (20 parts) Fuel Supply Module Hoses
Ref OEM Part # Part Name
- 61-897148A08 LONG BLOCK ASSEMBLY, 115
1 35-8348084 STRAINER
2 32-8M0040122 HOSE, Block Strainer to Fuel Supply Module Comment: SN# 1B759588 & Up
3 32-897795A01 HOSE ASSEMBLY, Fuel Supply Module Outlet
4 32-8M0072517 HOSE, Fuel Supply Module to High Pressure Fuel Filter Comment: SN# 1B794599 & Up
5 35-879885Q FILTER, Fuel
6 32-8M0072519 HOSE, Filter to Rail Comment: SN# 1B794599 & Up
7 32-8M0108355 HOSE, (57.00 Inches Bulk), Cut to 8.25 Inches
8 32-8M0072516 HOSE, Fuel Supply Module to Vent Cannister Comment: SN# 1B418768 & Up
9 54-8M0214911 CLAMP, (15.7 mm)
10 54-816311T TIE STRAP, (8.00 Inches)
11 8M0039078 GROMMET
12 888523001 CLIP
13 32-8M0072518 HOSE, Filter to Fuel Supply Module Comment: SN# 1B794599 & Up
14 32-8M0043798 HOSE, Fuel Inlet Comment: SN# 1B794599 & Up
15 NSS NOT SOLD SEPARATE, Cap
16 54-814634 CLAMP
17 8M0007865 TUBE, Nylon
18 54-816311T TIE STRAP, (8.00 Inches)
19 54-8M0204696 CLAMP, (16.2 mm)
Fuel Supply Module Mounting (12 parts) Fuel Supply Module Mounting
Ref OEM Part # Part Name
1 8M0130897 MODULE, Fuel Supply Comment: See Fuel Supply Module Page For Service Parts Breakdown
2 897567T BRACKET, Fuel Supply Module
3 10-8M0103814 SCREW, (M8 x 35 MM)
4 12-817274 WASHER, (.344 x 1.00 x .063) Stainless Steel
5 10-8M0103814 SCREW, (M8 x 35 MM)
6 54-899145 CLIP, Tie Strap
7 897763T03 BRACKET ASSEMBLY, Throttle Comment: SN# 0P472785 & Up
8 10-88552620 SCREW, (M8 x 20)
9 54-897559 CLIP
10 8M0005986 CABLE ASSEMBLY
11 12-35459 WASHER
12 18-210711 COTTER PIN
Gear Housing, Driveshaft (43 parts) Gear Housing, Driveshaft
Ref OEM Part # Part Name
- 31-803496T2 BEARING/SEAL KIT
1 1600-888845T GEAR HOUSING ASSEMBLY, Basic
2 17-8M0084244 PIN, Dowel - With Hole (.375 x .625) , Front
3 43046 TUBE, Oiler
4 10-79953Q04 SCREW KIT, (.375-16 x .250) Drain
5 12-191833 SEAL
6 17-43044 PIN, Dowel - Without Hole (.375 x .625), Rear
7 31640T07 TRIM TAB
8 10-825427 SCREW, (.437-14 x 1.250) Stainless Steel
9 12-451761 WASHER, (.453 x .812 x .105) Black Oxide
10 43040T1 CARRIER ASSEMBLY
11 NSS NOT SOLD SEPARATE, Needle Bearing
12 97-826134Q ANODE
13 11-401386 NUT, (M6) Stainless Steel
14 10-4000333 SCREW, (M6 x 40)
15 NSS NOT SOLD SEPARATE, Pinion Gear - Part of Forward Gear Kits
16 11-35921 NUT, (.625-18)
17 31-883047A1 BEARING ASSEMBLY, Tapered Roller
18 15-44492A1 SHIM SET
19 45-897680T01 DRIVESHAFT ASSEMBLY, X-Long
20 42461A1 SLEEVE/RING KIT
21 NSS NOT SOLD SEPARATE, Seal Ring
22 43055A4 COVER ASSEMBLY, Water Pump
23 27-430331 GASKET
24 27-8M0214931 GASKET
25 26-43036 SEAL, Oil, Lower
26 26-43035 SEAL, Oil, Upper
27 27-8172771 GASKET
28 817275A2 HOUSING KIT, Upper Water Pump
29 8M0204709 FACEPLATE
30 10-82684430 SCREW, (M6 x 30)
31 430232 SEAL
32 28-8M0204723 KEY
33 47-43026T2 IMPELLER
34 10-82684425 SCREW, (M6 x 25)
35 26-861415 SEAL, Face
36 884565A00 SHIFT SHAFT ASSEMBLY Comment: X-Long
37 53-29641 E RING
38 23-43052A4 BUSHING ASSEMBLY
39 25-8M0204681 O-RING, (1.424 x .103)
40 26-8M0204708 SEAL, Oil
41 10-82684425 SCREW, (M6 x 25)
42 23-891637 BUSHING
Gear Housing, Propeller Shaft (32 parts) Gear Housing, Propeller Shaft
Ref OEM Part # Part Name
- 52-888805A00 REPAIR KIT, Clutch And Cam Follower
1 1600-888845T GEAR HOUSING ASSEMBLY, Basic
2 8227731 INSERT, Threaded
3 888807 FOLLOWER ASSEMBLY, Cam
4 8M4504018 CAM, Shift
5 888806 ROD, Clutch Actuator
6 17-8M0084243 PIN, Cross
7 17-8M0084245 PIN, Spring Locator
8 24-79910 SPRING
9 12-78910 WASHER
10 15-44491A1 SHIM SET
11 31-30894A1 BEARING SET, Cup And Cone
12 NSS NOT SOLD SEPARATE, Cup
13 43-882813A3 GEAR KIT, Forward And Pinion 28 Teeth Comment: 2.33:1
14 31-30895T BEARING, Needle
15 53-856823 RING, Retaining
16 52-888805T CLUTCH
17 44-8M0140444 PROPELLER SHAFT
18 24-30893 SPRING
19 43-889990T GEAR, Reverse Comment: 2.33:1
20 8M0168901 CARRIER ASSEMBLY, Bearing
21 25-8M0214974 O-RING, (3.609 x .139)
22 31-30956T BEARING, Needle
23 26-8M0205728 SEAL, Oil, Inner
24 26-8M0205729 SEAL, Oil, Outer
25 31-12578T BEARING, Roller
26 12-12577 THRUST WASHER
27 31-12576 BEARING, Thrust
28 16-8M0034456 STUD, (M8 x 48)
29 12-855941 WASHER, (.323 x .590 x .112) Stainless Steel
30 11-401378 NUT, (M8)
31 NSS NOT SOLD SEPARATE, Decal-Gearcase Pinion Identification
Integrated Air Fuel Module (15 parts) Integrated Air Fuel Module
Ref OEM Part # Part Name
- 8M6002790 MANIFOLD, Intake
1 892952T06 IAFM ASSEMBLY Comment: SN# 1B587016 & Up
2 10-88552550 SCREW, (M6 x 50 MM) Stainless Steel
3 12-8M0214930 WASHER
4 10-8M0048051 SCREW, (M6 x 30) Stainless Steel
5 897646001 BRACKET, Vent Canister
6 8M0175814 CANISTER ASSEMBLY, Vent
7 25-897434 GROMMET
8 8M0126307 PURGE VENT ASSEMBLY
9 35-8M0082911 FILTER, Air
10 8M0032134 RESTRICTOR PLATE Comment: 75/80EU SN# 1B521879 & Up
11 54-897559 CLIP
12 10-897445501 SCREW, (M6 x 20 MM)
13 54-816311T TIE STRAP, (8.00 Inches)
14 12-35462 WASHER, (.2656 x .625 x .0625) Stainless Steel
Intergrated Air Fuel Module Components (20 parts) Intergrated Air Fuel Module Components
Ref OEM Part # Part Name
- 892952T06 IAFM ASSEMBLY Comment: SN# 1B587016 & Up
1 8M6002790 MANIFOLD, Intake
2 8M0041571 INJECTOR, Fuel
3 25-851889 O-RING
4 898103T97 FUEL RAIL ASSEMBLY
5 10-897445502 SCREW, (M6 x 20)
6 891663001 SENSOR ASSEMBLY, Temperature
7 10-895054 SCREW, (M4 x 16 MM)
8 897445503 BRACKET, Retaining
9 854445 SENSOR, MAP
10 10-897445501 SCREW, (M6 x 20 MM)
11 897526T IAC VALVE
12 54-8M0236717 CLAMP KIT
13 32-8M0005528 HOSE, Idle Air Discharge
14 8M0005529 HOUSING, Manifold
15 32-8M0005527 HOSE, Idle Air Feed
16 898103T98 THROTTLE BODY ASSEMBLY
17 8M0125617 SENSOR, Position
18 10-8M0009542 SCREW KIT, (M5 x 17), Contains 2 Screws
19 26-897445505 SEAL, Bulk Pack of 4 seals.
Lube Chart (1 parts) Lube Chart
Ref OEM Part # Part Name
- NOPART NO PARTS LIST
Oil Pump (23 parts) Oil Pump
Ref OEM Part # Part Name
- 61-897148A08 LONG BLOCK ASSEMBLY, 115
1 25-62705001 O-RING
2 17-858580001 PIN, Dowel
3 881900T03 MOUNT Comment: SN# 1B485181 & Up
4 10-898487 SCREW, (M12 x 175)
5 12-32834 WASHER, (.9375 x 1.750 x .172)
6 12-8M0204648 WASHER, (1.5 x 3.05 x 0.13) Stainless Steel
7 11-896963 NUT, (M12)
8 10-8M0036722 SCREW, (M8 x 50)
9 897206T03 PUMP ASSEMBLY, Oil Comment: SN# 1B484635 & Up
10 10-82483211 SCREW, (M6 x 50)
11 26-8M0036343 SEAL, Oil
12 897961T01 BRACKET ASSEMBLY, Shift Link
13 10-42975 DRIVE SCREW
14 98889 LATCH
15 824015 CUP, Barrel Retainer, Small
16 87-8M0207794 SWITCH
17 10-88075020 SCREW, (M3 x 20)
18 8M0043168 SEAL
19 17-23784 PIN, Dowel
20 10-82130020 SCREW, (M6 x 20)
21 12-8M0001538 WASHER, (.940 x 1.50 x 0.65) Stainless Steel
22 12-4002317 WASHER
Power Trim Assembly - Components, Design II (19 parts) Power Trim Assembly - Components, Design II
Ref OEM Part # Part Name
- 25-8M0171820 O-RING KIT, Power Trim
1 8M0089943 MANIFOLD KIT
2 893929A01 VALVE KIT, Relief
3 8M0089945 VALVE KIT
4 8M0090404 VALVE KIT - (TRIM LIMIT)
5 833063 O-RING
6 8M0055260 DOWEL PINS
7 19-811613 PLUG ASSEMBLY
8 10-833047 SCREW, (.250-20 x 2.250)
9 8M0089941 CYLINDER ASSEMBLY
10 8M0207768 CABLE ASSEMBLY
11 8M6002690 SCREW
12 8M0171822 PISTON ASSEMBLY, Memory
13 25-8M0171819 O-RING KIT
14 8M0171821 SHOCK ROD KIT
15 10-8M0089946 SCREW KIT (COMPLETE TRIM)
16 8M0142591 MOTOR KIT
17 8M0090403 COUPLING / DRIVESHAFT KIT
18 8M0089944 PUMP ASSEMBLY
Power Trim Assembly, Design II (4 parts) Power Trim Assembly, Design II
Ref OEM Part # Part Name
1 8M0171818 POWER TRIM ASSEMBLY
2 17-8M0161312 PIN, Shock Rod
3 17-821539 PIN, Trilobe
4 17-818898 PIN, Anchor
Power Trim Components, Design I (19 parts) Power Trim Components, Design I
Ref OEM Part # Part Name
- 25-893914A02 O-RING KIT, Complete Trim
1 8M0171821 SHOCK ROD KIT
2 25-8M0171819 O-RING KIT, Rebuild
3 8M0171822 PISTON ASSEMBLY, Memory
4 893916A01 CYLINDER ASSEMBLY
5 893905A02 VALVE KIT, Trim Limit
6 893906A02 PUMP ASSEMBLY
7 893907A02 MOTOR KIT
8 22-8134351 PLUG, Reservoir
9 893929A01 MANUAL RELEASE ASSEMBLY
10 893909A02 MANIFOLD KIT
11 10-809876A1 SCREW KIT, Motor
12 88238A18 CABLE ASSEMBLY
13 809877A1 DRIVESHAFT/SEAL KIT
14 35-893912A02 FILTER KIT
15 893913A02 POPPET KIT
16 17-821539 PIN, Trilobe
17 17-818898 PIN, Anchor
18 99625002 SHAFT
Powerhead Gasket Set Components (1 parts) Powerhead Gasket Set Components
Ref OEM Part # Part Name
- 898844 SEAL, Exhaust Tube
Service/Support Material (1 parts) Service/Support Material
Ref OEM Part # Part Name
- NSS NOT SOLD SEPARATE, DECAL, EPA (2009 & Up) Comment: (Contact Mercury Marine Warranty Administration for Replacement-Service Bulletin 2009-18)
Starter Motor, 1B759587 and Below (14 parts) Starter Motor, 1B759587 and Below
Ref OEM Part # Part Name
- 50-897525T05 STARTER MOTOR ASSEMBLY, Complete Comment: SN# 1B580804 THRU 1B759587
1 23-8M0034918 COLLAR, Starter Motor
2 84-93388A1 CABLE ASSEMBLY, (6.00 Inches) Black
3 10-69035 SCREW AND LOCKWASHER, (.250-20 x .625) Stainless Steel
4 8M0007871 STOP, Rubber
5 84-898890T01 CABLE ASSEMBLY
6 13-400255 LOCKWASHER, (M5)
7 11-400211 NUT, (M5) Stainless Steel
8 37-8272822 DECAL, Warning
9 898103T94 CLAMP
10 898103T95 CLAMP
11 10-8M0008081 SCREW, (M6 x 20)
12 11-8M0008110 NUT, Acorn
13 12-8M0008112 WASHER, (8 mm Outside Diameter x 187 mm)
Starter Motor, 1B759588 and Up (16 parts) Starter Motor, 1B759588 and Up
Ref OEM Part # Part Name
1 50-879345T77 STARTER MOTOR ASSEMBLY, Complete
2 84-898890T01 CABLE ASSEMBLY
3 13-400255 LOCKWASHER, (M5)
4 11-400211 NUT, (M5) Stainless Steel
5 11-400213 NUT, (M8) Stainless Steel
6 13-8M0204647 LOCKWASHER, (.312)
7 84-93388A8 CABLE ASSEMBLY, (12.5 Inchs) Black
8 13-400255 LOCKWASHER, (M5)
9 10-30225 SCREW AND LOCKWASHER, (.312-18 x 1.00)
10 23-8M0047039 SPACER
11 8M0073891 MOUNT
12 10-88552645 SCREW, (M8X45)
13 54-814634 CLAMP
14 12-43430 WASHER
15 10-8M0037204 SCREW, Nylon, push in
16 54-8M0040205 CLAMP
Steering Handle Kit Components, 816366A52 (50 parts) Steering Handle Kit Components, 816366A52
Ref OEM Part # Part Name
- 8949112 KEY, Ignition (2F)
1 816366T10 HANDLE, Bracket
2 10-881261 SCREW, (.313-24 x 3.50)
3 14-42981 TAB WASHER
4 822263 SPACER
5 84-12649T11 HARNESS ASSEMBLY
6 87-88107A5 SWITCH KIT, Key
7 11-879755 NUT, Special - Black Nylon
8 13541 PLUG, Male
9 121051 GROMMET
10 19-889730 PLUG
11 8M0032846 RETAINER, Brass
12 8158041 COVER
13 10-878608 SCREW, (#10-16 x .500)
14 87-11083A4 SWITCH ASSEMBLY, Stop
15 15920T54 LANYARD ASSEMBLY
16 84-11149A3 CABLE ASSEMBLY
17 889528T01 HORN ASSEMBLY
18 87-18286A46 SWITCH KIT, Trim (25 ft.)
19 87-8M0052941 SWITCH
20 10-12110 SCREW, (#6-32 x .750)
21 54-648551 CLAMP
22 10-878608 SCREW, (#10-16 x .500)
23 10-849838 SCREW, (.375-24 x 1.250)
24 11-8M0204726 NUT, (.375-24) Stainless Steel
25 48419T01 ROD END
26 495637 ROD, Shift
27 23-26856 BUSHING
28 12-35950 WASHER, (.273 x .437 x .031) Stainless Steel
29 18-25191 COTTER PIN
30 8M0033001 LEVER
31 16-8M0034452 STUD, (.375-24 x 1.125)
32 98530 KNOB
33 12016A2 DETENT/SPRING KIT
34 23-8159831 BUSHING
35 12-823970 WASHER
36 12-824610 WASHER, Plastic
37 12-814803 WASHER
38 14-8158051 TAB WASHER
39 10-4000357 SCREW, (M8 x 45)
40 56-52148A08 CO PILOT ASSEMBLY
41 52148002 PILOT ROD, (15.00 Inches)
42 11-52155A1 NUT ASSEMBLY
43 10-36137 SCREW, (.250-28 x 1.00)
44 821621 KNOB, Prong
45 873491 ROD
46 23-26841 BUSHING
47 12-8M0042642 WASHER, (.323 x .563 x .063) Stainless Steel
48 11-826709111 NUT, (.312-24) Stainless Steel
49 11-64015 NUT, (.250-20)
Steering Handle Kit, 816366A52 (37 parts) Steering Handle Kit, 816366A52
Ref OEM Part # Part Name
- 816366A52 HANDLE KIT, Steering
NS 22-8M0169589 FITTING, Grease
1 12020A3 HANDLE ASSEMBLY, Steering Arm
2 23-42992T02 BUSHING
3 48414 HOUSING
4 48519 PLATE
5 27-48518 GASKET
6 10-878609 SCREW, (#10-16 x .600)
7 10-878608 SCREW, (#10-16 x .500)
8 54-889729 CLAMP
9 10-40007112 SCREW, (M5 x 40)
10 10-32,11-816874 WING NUT,
11 87-823609A15 SWITCH KIT, Stop - Throttle Handle
12 87-8M0104612 SWITCH ASSEMBLY, Stop
13 NSS NOT SOLD SEPARATE, Insulator
14 12018A4 TUBE ASSEMBLY, Throttle
15 NSS NOT SOLD SEPARATE, Drive Wheel
16 NSS NOT SOLD SEPARATE, Roll Pin
17 10-62568 SCREW, (#10-16 x .375)
18 8M0221732 GRIP
19 54-648552 CLIP
20 11-40140 NUT, (M10)
21 8885241 CONDUIT, (9.03 Inches)
22 89566T07 GUIDE, Tube
23 89578 BARREL, Throttle Acutator
24 10-32,10-824081 SET SCREW,
25 12019T05 CABLE ASSEMBLY
26 8M0204660 GUIDE, Cable
27 20007 ANCHOR, Cable End
28 8-32,10-8M0204644 SET SCREW,
29 10-823567105 SCREW, (M10 x 105) Hex Flange - Stainless Steel
30 48416 CAP
31 12-4002319 WASHER
32 12-12024 WASHER, (.402 x .787 x .039 Bellevi)
33 23-146011 SPACER
34 54-816311T TIE STRAP, (8.00 Inches)
35 NSS NOT SOLD SEPARATE, Decal-Throttle
Swivel Bracket and Swivel Pin (23 parts) Swivel Bracket and Swivel Pin
Ref OEM Part # Part Name
- NSS NOT SOLD SEPARATE, Decal-Serial Overlaminate
1 1400-8M0220957 SWIVEL BRACKET ASSEMBLY
2 26-87735 SEAL, Oil, Lower
3 23-818764 BUSHING
4 25-8M0214926 O-RING
5 23-816039 SPACER
6 22-8M0169589 FITTING, Grease
7 23-821207 BUSHING
8 10-64014 SCREW, (.250-28 x .500)
9 99661A35 SWIVEL PIN ASSEMBLY
10 92876A12 LINK ROD ASSEMBLY
11 10-849838 SCREW, (.375-24 x 1.250)
12 11-8M0204726 NUT, (.375-24) Brass
13 11-8M0204726 NUT, (.375-24) Stainless Steel
14 12-37828 WASHER, (.390 x .625 x .062) Stainless Steel
15 42961A06 YOKE ASSEMBLY, Bottom
16 53-67684 RING, Retaining
17 12-816432 THRUST WASHER, Included with Swivel Bracket
18 11288001 BUMPER, Bottom Yoke
19 821400A2 SENDER KIT, Power Trim
20 10-852368 SCREW, (#10-24 x .750)
21 10,13-26996 LOCKWASHER, Stainless Steel
22 12-89302 WASHER, (.203 x .406 x .040)
Throttle Bracket Assembly (13 parts) Throttle Bracket Assembly
Ref OEM Part # Part Name
1 897763T03 BRACKET ASSEMBLY, Throttle Comment: SN# 0P472785 & Up
2 10-42975 DRIVE SCREW
3 824015 CUP, Barrel Retainer
4 898048T LATCH, Control Cable
5 897765T01 LEVER ASSEMBLY, Throttle Follower
6 12-897936 WASHER
7 12-897937 WASHER
8 13-898093 WASHER, Wave
9 23-897935 SPACER
10 10-8M0103808 SCREW, (M6 x 30 MM) Stainless Steel
11 8M0008288 LEVER ASSEMBLY, Throttle
12 8M0001157 PIN, Bow Tie Clip
13 24-897535005 SPRING, Throttle Cam Return
Tools (1 parts) Tools
Ref OEM Part # Part Name
0 91-8M0075272 TOOL, Fuel Pressure Gauge Adapter
Top Cowl, 1B943218 and below (22 parts) Top Cowl, 1B943218 and below
Ref OEM Part # Part Name
- 37-8M0133054 DECAL, M Icon
1 100-8M0075361 TOP COWL ASSEMBLY, Mariner, Without decals
2 897529T01 CAP, Air Dam - Mariner
3 10-888950020 SCREW, (M4 x 20 mm)
4 8M0000346 SOUND BLANKET ASSEMBLY
5 831207A16 HANDLE KIT, Cowl Latch Comment: Plastic SN# 1B500146 & Up
6 23-812707 BUSHING
7 13-12134 WASHER, Wave
8 8M0001081 CAM
9 12-8M0214930 WASHER
10 12-8M0042643 WASHER, (.520 x .850 x .060) Nylon - Black
11 815477 BUMPER, Latch
12 897975 PLATE, Backing
13 8M0036792 BRACKET, Front
14 815477 BUMPER, Latch
15 8155381 PIN, Roll
16 8M0207770 ROLLER
17 53-8237951 RING, Retaining
18 12-8M0204649 WASHER, (.281 x .500 x .060) Stainless Steel
19 11-401366 NUT, (M6) Stainless Steel
20 10-8M0103804 SCREW, (M6 x 12 MM) Stainless Steel
21 37-8M0022127 DECAL, Back Lenz and Graphic Assembly
Top Cowl, 1B943219 and above (22 parts) Top Cowl, 1B943219 and above
Ref OEM Part # Part Name
- 37-8M0043706 DECAL, M Icon, 60mm-Black
1 100-8M0075361 TOP COWL ASSEMBLY, Mariner, Without decals
2 897529T01 CAP, Air Dam - Mariner
3 10-888950020 SCREW, (M4 x 20 mm)
4 8M0000346 SOUND BLANKET ASSEMBLY
5 831207A16 HANDLE KIT, Cowl Latch Comment: Plastic
6 23-812707 BUSHING
7 13-12134 WASHER, Wave
8 8M0001081 CAM
9 12-8M0214930 WASHER
10 12-8M0042643 WASHER, (.520 x .850 x .060) Nylon - Black
11 815477 BUMPER, Latch
12 897975 PLATE, Backing
13 8M0036792 BRACKET, Front
14 815477 BUMPER, Latch
15 8155381 PIN, Roll
16 8M0207770 ROLLER
17 53-8237951 RING, Retaining
18 12-8M0204649 WASHER, (.281 x .500 x .060) Stainless Steel
19 11-401366 NUT, (M6) Stainless Steel
20 10-8M0103804 SCREW, (M6 x 12 MM) Stainless Steel
21 NSS NOT SOLD SEPARATE
Transom Bracket (31 parts) Transom Bracket
Ref OEM Part # Part Name
1 3426-828334T02 BRACKET ASSEMBLY, Transom - Starboard
2 3425-828333T07 BRACKET ASSEMBLY, Transom - Port
3 22-8M0169588 FITTING, Grease, Port
4 826125A1 TILT TUBE
5 11-826135 NUT, (1.00-14) Nylon Insert
6 25-45711 O-RING, (.612 x .103)
7 13-88750 WASHER, Wave
8 11-826164 NUT, (.875-14)
9 10-8M0149747 SCREW, (.500-20 x 4.500)
10 12-8M0204665 WASHER, (.530 x .870 x .105) Stainless Steel
11 12-8M0204648 WASHER, (1.5 x 3.05 x 0.13) Stainless Steel
12 11-82671117 NUT, (.500-20)
13 24-830899 SPRING, Tension
14 8M0109798 LEVER ASSEMBLY, Tilt Lock
15 23-65830 NYLINER
16 24-830900 SPRING, Compression
17 99633 KNOB
18 17-99615 PIN, Groove
19 17-893709 PIN, Included with Port Transom Bracket
20 8M0086406 BRACKET, Anchor
21 10-858771 SCREW, (M10 x 30)
22 12-4002319 WASHER
23 11-40114 NUT, (M10 x 1.5)
24 97-818298Q1 ANODE
25 10-8M0204707 SCREW, (M6 x 25)
26 12-8M0204649 WASHER, (.281 x .500 x .060) Stainless Steel
27 54-22740 CLIP
28 8M0084613 C WASHER
29 10-878609 SCREW, (#10-16 x .600)
30 NSS NOT SOLD SEPARATE, Decal-Serial Overlaminate
31 37-8M0043059 DECAL, Warning

100-Hour / Annual Service Checklist

Regular maintenance keeps your Mercury 100 EFI (4-STROKE) running reliably season after season. Most of these tasks can be performed with basic tools and the factory service manual.

  1. Replace water pump impeller and inspect wear plate
  2. Change engine oil and oil filter (check drain plug washer)
  3. Replace spark plugs and check ignition timing
  4. Drain and refill lower unit gear oil; inspect for water contamination
  5. Inspect fuel lines, primer bulb, and fuel filter for deterioration
  6. Check and replace sacrificial anodes (zinc or aluminum)
  7. Inspect propeller for damage; check shaft seal and cotter pin
  8. Check valve clearance (refer to service manual for specifications)
  9. Lubricate all grease points (steering, tilt tube, shift linkage)
  10. Inspect control cables and throttle/shift linkage for smooth operation
  • Pro Tip: Always flush the engine with fresh water after saltwater use — even a quick 10-minute flush significantly extends component life.
  • Pro Tip: Use fuel stabilizer in the tank before winter storage, and fog the cylinders to prevent internal corrosion during extended periods of non-use.

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