🔎 Mercury XR10 Reference Library — Exploded parts diagrams (19 diagrams), specifications, common issues, and maintenance checklist.
The Mercury XR10 is a 4-Stroke, Inline 3-Cylinder, EFI outboard motor. Commonly used on jon boats, pontoons, and mid-size utility craft.
Quick Reference Specifications
| Specification |
Value |
| Engine Type |
4-Stroke, Inline 3-Cylinder, EFI |
| Horsepower |
25 HP |
| Displacement |
526 cc |
| Bore x Stroke |
61 mm x 57 mm |
| Spark Plug (Type & Gap) |
NGK BKR6E |
| Engine Oil Capacity |
1.8 L (1.9 quart) |
| Recommended Engine Oil |
SAE 25W-40 Synthetic Blend Mercury FC-W |
| Gear Case Oil Capacity |
280-350 mL (9.5-12 fl oz) |
| Idle Speed (in gear) |
700 ± 50 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 XR10:
-
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 XR10.
▶Accessories (1 parts)
| Ref |
OEM Part # |
Part Name |
| 0 |
12569A1 |
ATTACHING KIT, Cable And Pulley |
▶Carburetor(XR10/Magnum 10) (42 parts)
| Ref |
OEM Part # |
Part Name |
| - |
27-42364A92 |
GASKET SET, Engine |
| 1 |
1392-9726T18 |
CARBURETOR Comment: (WMC-49A-NORWAY) |
| 2 |
1395-823716 |
VALVE, Throttle Comment: (WMC-49/49A) |
| 3 |
19267 |
SHAFT, Throttle (INCLS. SCREW & SPRING) Comment: (WMC-49/49A) |
| 4 |
1395-9164 |
BOWL, Fuel |
| 5 |
1395-91691 |
FLOAT |
| 6 |
98551 |
VALVE, Inlet Needle |
| 7 |
1395-6359 |
JET, (.052) Comment: (WMC-23/48/48A) |
| 8 |
1395-9171 |
PLUG |
| 9 |
1395-823648 |
COVER, Diaphragm Comment: (WMC-48/48A/49/49A) |
| 10 |
1395-9697 |
SCREW |
| 11 |
15827A1 |
BODY |
| 12 |
1395-9643 |
SCREW |
| 13 |
1395-9699 |
PLATE |
| 14 |
1395-9696 |
SCREW |
| 15 |
1395-97611 |
GASKET/DIAPHRAGM KIT |
| 16 |
1395-8237072 |
REPAIR KIT |
| 17 |
1395-9637 |
COVER |
| 18 |
1395-9762 |
PLUG |
| 19 |
27-192061 |
GASKET, Carburetor |
| 20 |
1395-9635 |
DIAPHRAGM/GASKET |
| 21 |
128053 |
LEVER, Fast Idle |
| 22 |
12803 |
BRACKET, Primer |
| 23 |
11-821979 |
NUT |
| 24 |
10-12110 |
SCREW, (#6-32 x .750) |
| 25 |
24-11277 |
SPRING, Tension |
| 26 |
10-400018 |
SCREW, (M5 x 12) |
| 27 |
10-79965 |
SCREW, (#8-32 x .500) Stainless Steel |
| 28 |
112731 |
LEVER, Primer |
| 29 |
11280 |
CAM BLOCK |
| 30 |
53-11278 |
CLIP, Retaining |
| 31 |
12804A1 |
BEZEL ASSEMBLY, Choke |
| 32 |
128022 |
PRIMER KNOB |
| 33 |
10-40056110 |
SCREW, (M5 x 30) |
| 34 |
11-400211 |
NUT, (M5) Stainless Steel |
| 35 |
174421 |
COVER, Carburetor Comment: USE WHERE APPLICABLE |
| 36 |
19-47579 |
PLUG Comment: USE WHERE APPLICABLE |
| 37 |
445541 |
IDLE WIRE |
| 38 |
37-129701 |
DECAL (SLOW/FAST) |
| 39 |
41750T |
INSERT |
| 40 |
10-40056110 |
SCREW, (M5 x 30) |
| 41 |
125681 |
RESTRICTOR PLATE Comment: (NORWAY) |
▶Carburetor, SeaPro/Marathon10 & 15 (35 parts)
| Ref |
OEM Part # |
Part Name |
| - |
19072T97 |
POWERHEAD ASSEMBLY Comment: SN# USA-0G112450/BEL-9831800 & Up |
| 1 |
1392-851908T06 |
CARBURETOR Comment: (WMC-55A- SEAPRO/MARATHON 15) |
| 2 |
815133 |
VALVE, Throttle Comment: (WMC-50/50A/50B) |
| 3 |
813022 |
SHAFT, Throttle (INCLS. SCREW & SPRING) Comment: (WMC-50/50A/50B) |
| 4 |
1395-811353 |
BOWL, Fuel |
| 4A |
1395-811360 |
SCREW, Bowl Drain |
| 5 |
1395-91691 |
FLOAT |
| 5A |
F10064 |
SHAFT |
| 6 |
98551 |
VALVE, Inlet Needle |
| 7 |
1395-6207 |
JET, (.072) Comment: (WMC-55/55A) |
| 8 |
1395-9171 |
PLUG |
| 9 |
NSS |
NOT SOLD SEPARATE, Throttle Lever (Part of Reference #3) Comment: (WMC-50/50A/50B/55/55A) |
| 10 |
1395-8113541 |
SHAFT, Choke |
| 11 |
15827A1 |
BODY |
| 12 |
1395-9643 |
SCREW |
| 13 |
1395-9699 |
PLATE |
| 14 |
1395-9696 |
SCREW |
| 15 |
1395-97611 |
GASKET/DIAPHRAGM KIT |
| 16 |
1395-8237072 |
REPAIR KIT |
| 17 |
1395-9637 |
COVER |
| 18 |
1395-811806 |
VALVE, Choke |
| 19 |
27-192061 |
GASKET, Carburetor (USE WHERE APPLICABLE) |
| 20 |
1395-9635 |
DIAPHRAGM/GASKET |
| 21 |
1395-811805 |
LEVER, Choke |
| 23 |
174421 |
COVER, Carburetor |
| 24 |
19-47579 |
PLUG |
| 25 |
10-40056110 |
SCREW, (M5 x 30) |
| 26 |
41750T |
INSERT |
| 27 |
817424 |
KNOB, Choke |
| 28 |
12804A1 |
BEZEL ASSEMBLY, Choke |
| 29 |
53-11278 |
CLIP, Retaining |
| 30 |
817426 |
INSERT, Choke Bezel |
| 31 |
817425 |
LINK, Choke |
| 32 |
10-40056110 |
SCREW, (M5 x 30) |
| 33 |
11-400211 |
NUT, (M5) Stainless Steel |
▶Clamp Bracket (21 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
3404-8894A9 |
CLAMP BRACKET ASSEMBLY (Port-Gray) Comment: SN# USA-0G031927/BEL-9803667 & Up |
| 1/2 |
3404-8894A12 |
CLAMP BRACKET ASSEMBLY Comment: (Port/Starboard-Gray) SN# USA-0G031926/BEL-9803666 & Below |
| 2 |
3403-8892A7 |
CLAMP BRACKET ASSEMBLY Comment: (Starboard-Gray) SN# USA-0G031927/BEL-9803667 & Up |
| 3 |
10-92767A3 |
THUMB SCREW ASSEMBLY, (16 mm) |
| 4 |
12-73719 |
WASHER |
| 5 |
10-768042 |
SHOULDER SCREW, Hex |
| 6 |
23-8M0084719 |
SPACER |
| 7 |
10-4000333 |
SCREW, (M6 x 40) |
| 8 |
37-12869 |
DECAL, Tilt Position |
| 9 |
814427 |
SHUTTLE |
| 10 |
42078 |
TILT TUBE |
| 11 |
54-8M0085928 |
CLIP |
| 12 |
11-93164 |
NUT, (.875) |
| 13 |
12-71421 |
WASHER, Nylon |
| 14 |
42390A1 |
LEVER ASSEMBLY, Tilt Return |
| 15 |
90901 |
STRAP, PORT SIDE |
| 16 |
10-42498 |
SCREW, (M6 x 1.0) |
| 17 |
13-31030 |
WAVE WASHER |
| 18 |
10-43216 |
BOLT, (.250-20 x 3.50) |
| 19 |
12-67983 |
WASHER |
| 20 |
11-8267118 |
NUT, (.250-20) |
▶Cowls (20 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
2191-8M0094069 |
TOP COWL ASSEMBLY Comment: (SILVER) |
| 2 |
444621 |
SEAL |
| 3 |
13691A02 |
SOUND BLANKET KIT |
| 4 |
817104A3 |
LATCH ASSEMBLY, Cowl |
| 5 |
180402 |
LATCH HOOK |
| 6 |
10-852530 |
SCREW, (.250-20 x 1.50) |
| 7 |
12873T |
SHIELD |
| 8 |
10-400018 |
SCREW, (M5 x 12) |
| 9 |
2192-9204A2 |
BOTTOM COWL Comment: (GRAY) |
| 10 |
15061001 |
PLUG |
| 11 |
87-11083A6 |
SWITCH ASSEMBLY, Stop |
| 12 |
15920Q54 |
LANYARD ASSEMBLY |
| 13 |
8M0032846 |
RETAINER, Brass |
| 14 |
44461A1 |
LEVER, Cowl Latch |
| 15 |
23-76470 |
BUSHING |
| 16 |
13-69708 |
WAVE WASHER |
| 17 |
11394 |
SPACER |
| 18 |
12154 |
PLUG |
| 19 |
25-12602002 |
GROMMET (USE WHERE APPLICABLE) |
| 20 |
37-855577A4 |
DECAL, EPA Label Information Comment: (1998) (SEAPRO/MARATHON) |
▶Crankshaft, Pistons and Flywheel (24 parts)
| Ref |
OEM Part # |
Part Name |
| - |
19072T97 |
POWERHEAD ASSEMBLY Comment: SN# USA-0G112450/BEL-9831800 & Up |
| 1 |
11-818591 |
NUT, (M14) |
| 2 |
260-859231T19 |
FLYWHEEL ASSEMBLY |
| 3 |
17794A1 |
BEARING |
| 4 |
26-818901 |
SEAL |
| 5 |
400-8M0083309 |
CRANKSHAFT ASSEMBLY |
| 6 |
818630A1 |
SLEEVE |
| 7 |
30-41341 |
BEARING, Ball, Lower |
| 8 |
53-20940 |
RING, Snap (SMALL) (USE WHERE APPLICABLE) |
| 9 |
53-42132 |
RING, Retaining |
| 10 |
12-13031 |
WASHER |
| 11 |
26-125661 |
SEAL, Oil - Lower, LOWER |
| 12 |
28-20094 |
KEY, Woodruff |
| 13 |
31-878158 |
BEARING, Roller |
| 14 |
26-125671 |
SEAL, Oil - Upper, UPPER |
| 15 |
637-8477A2 |
CONNECTING ROD ASSEMBLY |
| 16 |
10-823460 |
SCREW, (M5 x 16) |
| 17 |
31-42076A1 |
BEARING ASSEMBLY, Roller |
| 18 |
29-42186 |
BEARING, Needle |
| 19 |
12-8M0012297 |
BEARING, Thrust |
| 20 |
784-9747A4 |
PISTON ASSEMBLY Comment: (.015 O.S.) |
| 21 |
39-18212A1 |
RING SET, Piston Comment: (.015 O.S.) |
| 22 |
40-422021 |
LOCK RING |
| 23 |
12-824451 |
WASHER, (.610 Inside Diamter x .890 Outside Diameter x .062) |
▶Cylinder Block and Covers (47 parts)
| Ref |
OEM Part # |
Part Name |
| - |
19072T97 |
POWERHEAD ASSEMBLY Comment: SN# USA-0G112450/BEL-9831800 & Up |
| 1 |
881-9727T12 |
CYLINDER BLOCK Comment: SN# usa-0G112450/BEL-9831800 & Up |
| 2 |
17-85171 |
PIN, Dowel |
| 3 |
16-424632 |
STUD, (M8 x 37.1) |
| 4 |
21-426982 |
CHECK VALVE |
| 5 |
32-892024122 |
TUBING, (20.00 Feet Bulk) (Cut to 2.50 Inches) |
| 6 |
16-8161949 |
STUD |
| 7 |
10-421251 |
SCREW, (M8 x 55) |
| 8 |
17-17866 |
PIN, Groove |
| 9 |
11-401386 |
NUT, (M6) |
| 10 |
27-191861 |
GASKET, Powerhead |
| 11 |
828435A3 |
REED BLOCK Comment: (Rubber Coated (1) Piece Design) SN# USA-0G437999/BEL-9926999 & Below |
| 12 |
828435A3 |
REED BLOCK ASSEMBLY Comment: (Replaced by (1) Piece Design Reed Block) |
| 13 |
21-42657A3 |
CHECK VALVE Comment: (Replaced by (1) Piece Design Reed Block) |
| 14 |
26-42137 |
SEAL Comment: (Replaced by (1) Piece Design Reed Block) |
| 15 |
27-195982 |
GASKET Comment: (Replaced by (1) Piece Design Reed Block) |
| 16 |
10-4005764 |
SCREW, (M3.5 x 8) Comment: (Replaced by (1) Piece Design Reed Block) |
| 17 |
34-825141 |
REED Comment: (Replaced by (1) Piece Design Reed Block) |
| 18 |
179031 |
STOP, Reed Comment: (Replaced by (1) Piece Design Reed Block) |
| 19 |
10-4000171 |
SCREW, (M6 x 16) |
| 20 |
11-400213 |
NUT, (M8) Stainless Steel |
| 21 |
8M0048005 |
COVER |
| 22 |
10-40062129 |
SCREW, (M6 x 25) |
| 23 |
27-19185 |
GASKET |
| 24 |
42365 |
PLATE, Baffle |
| 25 |
27-19184 |
GASKET |
| 26 |
10-40062129 |
SCREW, (M6 x 25) |
| 27 |
22-56759 |
FITTING, Barbed |
| 28 |
32-892024122 |
TUBING, (20.00 Feet Bulk) (Cut to 5.25 and 7 Inches) |
| 29 |
22-59169003 |
FITTING |
| 30 |
54-816311T |
TIE STRAP, (8.00 Inches) |
| 31 |
27-192031 |
GASKET Comment: SN# 9831799 & Below |
| 32 |
19107F1 |
COVER, Intake Comment: SN# 9831799 & Below |
| 33 |
25-891935 |
O-RING Comment: SN# USA-0G112450/BEL-9831800 & Up |
| 34 |
826383F1 |
COVER, Intake Comment: SN# USA-0G112450/BEL-9831800 & Up |
| 35 |
32-8M0108355 |
HOSE, (57.00 Inches Bulk) |
| 36 |
22-94848 |
FITTING, BOTTOM COWL |
| 37 |
1033-8906A02 |
COVER ASSEMBLY |
| 38 |
27-19207002 |
GASKET |
| 39 |
8M0039352 |
COVER |
| 40 |
27-19205002 |
GASKET |
| 41 |
10-40062129 |
SCREW, (M6 x 25) |
| 42 |
14586 |
THERMOSTAT (120 DEGREES) |
| 43 |
27-8M0204714 |
GASKET |
| 44 |
22-291112 |
CONNECTOR (STRAIGHT) |
| 45 |
10-40062129 |
SCREW, (M6 x 25) |
| 46 |
16-429173 |
STUD Comment: (NORWAY MODELS) |
▶Driveshaft Housing (19 parts)
| Ref |
OEM Part # |
Part Name |
| - |
27-42364A92 |
GASKET SET, Engine |
| 1 |
1597-822155A2 |
HOUSING ASSEMBLY Comment: (LONG) GRAY |
| 2 |
27-195992 |
GASKET, Driveshaft Housing |
| 3 |
8M0039074 |
MOUNT |
| 4 |
42374F5 |
COVER Comment: (GRAY) |
| 5 |
10-4009238 |
SCREW, (M6 x 80) |
| 6 |
12-8M0204649 |
WASHER, (.281 x .500 x .060) Stainless Steel |
| 7 |
11-400212 |
NUT, (M6) Stainless Steel |
| 8 |
10-40011131 |
SCREW, (M6 x 35) Stainless Steel |
| 9 |
26-11287001 |
SEAL, Adapter Plate |
| 10 |
41344A3 |
ADAPTOR PLATE ASSEMBLY Comment: (1-1/8 IN. I.D. TUBE) USE WITH DESIGN I WATER TUBE SEE PARTS BULLETIN #94-3 |
| 11 |
32-881203A2 |
TUBE ASSEMBLY, Water Comment: (LONG) USE WITH DESIGN II WATER TUBE |
| 12 |
32-42122 |
TUBE, Water Comment: (LONG) USE WITH DESIGN I WATER TUBE SEE PARTS BULLETIN #94-3 |
| 13 |
42371 |
HOLDER Comment: USE WITH DESIGN I WATER TUBE SEE PARTS BULLETIN #94-3 |
| 14 |
27-192012 |
GASKET Comment: USE WITH DESIGN I WATER TUBE SEE PARTS BULLETIN #94-3 |
| 15 |
10-40011107 |
SCREW, (M5 x 16) Stainless Steel Comment: USE WITH DESIGN I WATER TUBE SEE PARTS BULLETIN #94-3 |
| 16 |
23-42465 |
SPACER Comment: USE WITH DESIGN I WATER TUBE SEE PARTS BULLETIN #94-3 |
| 17 |
26-42380001 |
SEAL |
| 18 |
445551 |
BLOCK, Bearing Comment: (LONG) |
▶Fuel Filter Assembly (10 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
35-889527A07 |
FILTER ASSEMBLY, Fuel |
| 2 |
858731 |
BALL |
| 3 |
35-87946Q04 |
FILTER ASSEMBLY |
| 4 |
25-897536 |
SEAL |
| 5 |
32-8M0108355 |
HOSE, (57.00 Inches Bulk) |
| 6 |
32-8M0108355 |
HOSE, (57.00 Inches Bulk) |
| 7 |
54-816311T |
TIE STRAP, (8.00 Inches) |
| 8 |
25-18202 |
GROMMET |
| 9 |
22-15781A9 |
CONNECTOR KIT, Fuel |
| 10 |
10-8M0204707 |
SCREW, (M6 x 25) |
▶Gear Housing(Driveshaft)(2.00:1 Gear Ratio) (43 parts)
| Ref |
OEM Part # |
Part Name |
| - |
26-41365A3 |
SEAL KIT |
| 1 |
1666-8833A18 |
GEAR HOUSING ASSEMBLY, Basic-Gray Comment: (GRAY) |
| 2 |
23-12009 |
BUSHING, (.31 x .45 x .50) |
| 3 |
22-8M0058389 |
FITTING KIT, Magnetic, Plug Fill/Drain |
| 4 |
12-191833 |
WASHER, Fiber |
| 5 |
822244A1 |
SLEEVE ASSEMBLY |
| 6 |
23-823944 |
SLEEVE |
| 7 |
23-823943 |
BUSHING |
| 8 |
10-79953Q04 |
SCREW, (.375-16 x .250) |
| 9 |
12-191833 |
WASHER, Fiber |
| 10 |
35-421991 |
SCREEN |
| 11 |
10-13954 |
SCREW, (.250-14 x .88) |
| 12 |
97-42121Q02 |
ANODE ASSEMBLY |
| 13 |
10-13954 |
SCREW, (.250-14 x .88) |
| 14 |
26-42133 |
SEAL |
| 15 |
43-8219251 |
GEAR, Pinion - 13-26 |
| 16 |
12-41369 |
WASHER |
| 17 |
31-22756 |
BEARING, Roller |
| 18 |
46-42040T5 |
BASE ASSEMBLY, Water Pump |
| 19 |
27-192043 |
GASKET |
| 20 |
26-33613 |
SEAL |
| 21 |
42375 |
RETAINER |
| 22 |
10-48408 |
SCREW, (#10-16 x .500) |
| 23 |
25-822236 |
QUAD RING |
| 24 |
26-413651 |
SEAL, Oil |
| 25 |
27-19202001 |
GASKET, Water Pump Plate |
| 26 |
32-42185A1 |
TUBE ASSEMBLY, Water |
| 27 |
42200 |
FACE PLATE |
| 28 |
46-42089A2 |
COVER ASSEMBLY |
| 29 |
26-421021 |
SEAL |
| 30 |
47-42038Q02 |
IMPELLER |
| 31 |
28-8M0173458 |
KEY ASSEMBLY |
| 32 |
444671 |
GUIDE |
| 33 |
10-8M0214957 |
SCREW, (M6 x 30) |
| 34 |
12-8M0204649 |
WASHER, (.281 x .500 x .060) Stainless Steel (USE WHERE APPLICABLE) |
| 35 |
42039 |
CAM |
| 36 |
8M0026065 |
SHIFT SHAFT Comment: (LONG) |
| 37 |
53-42389 |
E RING |
| 38 |
8M0036770 |
GUIDE |
| 39 |
10-40011109 |
SCREW, (M5 x 25) Stainless Steel |
| 40 |
11-401385 |
NUT, (M5) |
| 41 |
45-823390 |
DRIVESHAFT Comment: (LONG) |
| 42 |
12-822248 |
THRUST WASHER |
▶Gear Housing, Propeller Shaft - 2.00:1 Gear Ratio (23 parts)
| Ref |
OEM Part # |
Part Name |
| - |
26-41365A3 |
SEAL KIT |
| 1 |
1666-8833A18 |
GEAR HOUSING ASSEMBLY, Basic-Gray Comment: (GRAY) |
| 43 |
31-821321A1 |
BEARING ASSEMBLY, Roller |
| 44 |
43-821924A1 |
GEAR ASSEMBLY, Forward (26 TEETH) |
| 45 |
23-41367 |
BUSHING |
| 46 |
813139 |
FOLLOWER, Cam |
| 47 |
52-821930A1 |
CLUTCH ASSEMBLY |
| 48 |
17-823951 |
PIN, Cross |
| 49 |
24-42204 |
SPRING |
| 50 |
44-821929 |
PROPELLER SHAFT |
| 51 |
43-821926T1 |
GEAR, Reverse - 13/26 |
| 52 |
42144T3 |
CARRIER ASSEMBLY, Bearing |
| 53 |
25-8M0214923 |
O-RING, (1.984 x .139) |
| 54 |
23-821927 |
BUSHING |
| 55 |
26-99325 |
SEAL |
| 56 |
26-821928 |
SEAL, Oil |
| 57 |
10-82407110 |
SCREW, (M8 x 50) |
| 58 |
10-8240717 |
SCREW, (M8 x 30) |
| 59 |
48-828156A12 |
PROPELLER, (9.00 x 9.00) |
| 60 |
23-420911 |
SPACER |
| 61 |
11-40140 |
NUT, (M10) |
| 62 |
8219321 |
THRUST HUB Comment: (1.510 DIA.) |
| 63 |
822559Q01 |
CUP ASSEMBLY, Reverse Exhaust Block |
▶Ignition Components (23 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
86617A20 |
STATOR ASSEMBLY |
| 2 |
10-4000120 |
SCREW, (M5 x 25) |
| 3 |
10-400018 |
SCREW, (M5 x 12) |
| 4 |
98450A10 |
TRIGGER ASSEMBLY |
| 5 |
11100 |
CLIP |
| 6 |
339-7452A19 |
SWITCHBOX ASSEMBLY |
| 7 |
10-40019108 |
SCREW, (M5 x 20) |
| 8 |
10-48408 |
SCREW, (#10-16 x .500) |
| 9 |
339-832757A4 |
COIL KIT |
| 10 |
10-40112 |
SCREW, (M6 x 45) |
| 11 |
88173 |
TAB WASHER |
| 12 |
23-88171 |
BUSHING |
| 13 |
10-32,11-45076 |
NUT, Brass |
| 14 |
84-813715A2 |
CABLE SET, High Tension (5 and 8.25 Inch) |
| 15 |
85-63709A1 |
BOOT/TERMINAL KIT |
| 16 |
33-8M0114746 |
SPARK PLUG (NGK#BP8HS-15) |
| 17 |
54-816311T |
TIE STRAP, (8.00 Inches) |
| 18 |
86704A10 |
STATOR ASSEMBLY |
| 19 |
10-4000123 |
SCREW, (M5 x 30) |
| 20 |
86-638131 |
TERMINAL BLOCK |
| 21 |
10-48409 |
SCREW, (#10-16 x .625) Stainless Steel |
| 22 |
10-62568 |
SCREW, (#10-16 x .375) |
| 23 |
84-88807A16 |
CABLE ASSEMBLY, (4.00 Inches) Black |
▶Manual Starter (27 parts)
| Ref |
OEM Part # |
Part Name |
| - |
42207A7 |
STARTER ASSEMBLY, Recoil |
| 1 |
42207T02 |
HOUSING, Starter |
| 2 |
8M0183792 |
BUSHING |
| 3 |
53-818853 |
RING, Retaining |
| 4 |
24-86857T01 |
SPRING |
| 5 |
42034T04 |
PULLEY, Starter |
| 6 |
50-12066Q10 |
ROPE |
| 7 |
24-86851T02 |
SPRING |
| 8 |
868501 |
CAM |
| 9 |
53-86849T01 |
RING, Retaining |
| 10 |
24-868523 |
SPRING |
| 11 |
86853T01 |
CAM |
| 12 |
10-826253 |
SCREW |
| 13 |
833161T |
PAD |
| 14 |
19018T |
REST |
| 15 |
12674 |
SUPPORT |
| 16 |
10-40019111 |
SCREW, (M5 x 35) |
| 17 |
23-309772 |
SPACER |
| 18 |
11-401385 |
NUT, (M5) |
| 19 |
42171T |
LEVER (UPPER) |
| 20 |
12-8M0204666 |
WASHER, (.203 x .500 x .032) |
| 21 |
42173T |
LEVER (LOWER) |
| 22 |
10-48408 |
SCREW, (#10-16 x .500) |
| 23 |
10-8M0204741 |
SCREW, (M6 x 20) Stainless Steel |
| 24 |
85174A1 |
HANDLE ASSEMBLY |
| 25 |
16-8161945 |
STUD, (M6 x 32) Comment: SEAPRO/MARATHON MODELS |
| 26 |
11-401386 |
NUT, (M6) Comment: SEAPRO/MARATHON MODELS |
▶Service/Support Material (1 parts)
| Ref |
OEM Part # |
Part Name |
| 0 |
37-855577A4 |
DECAL, EPA Label Information Comment: (1998) |
▶Swivel Bracket (30 parts)
| Ref |
OEM Part # |
Part Name |
| - |
37-8237011 |
DECAL, Co-Pilot |
| 1 |
3402-8831A9 |
SWIVEL BRACKET ASSEMBLY Comment: (Gray) SN# USA-0G031927/BEL-9803667 & Up |
| 2 |
22-8M0169589 |
FITTING, Grease |
| 3 |
42124A2 |
PLATE ASSEMBLY, Co-Pilot |
| 4 |
23-421402 |
BEARING |
| 5 |
23-42080T01 |
BEARING, Thrust - Upper |
| 6 |
23-42139 |
BUSHING |
| 7 |
26-42077 |
SEAL |
| 8 |
12-42373 |
THRUST WASHER |
| 9 |
24-421301 |
SPRING |
| 10 |
42082T04 |
BRACKET |
| 11 |
17-420811 |
PIN |
| 12 |
8M0075731 |
HOOK, Reverse Lock |
| 13 |
17-830741A1 |
PIN, Pivot Comment: DESIGN I |
| 14 |
91963 |
WASHER, (.390 x .600 x .032) Comment: DESIGN I |
| 15 |
17-830741A1 |
PIN ASSEMBLY, Pivot Comment: DESIGN II |
| 16 |
NSS |
NOT SOLD SEPARATE, Retaining Ring Comment: DESIGN II |
| 17 |
91963 |
WASHER, (.390 x .600 x .032) Comment: DESIGN II |
| 18 |
24-42128 |
SPRING |
| 19 |
42085F5 |
CARRYING HANDLE Comment: (GRAY) |
| 20 |
24-42127 |
SPRING |
| 21 |
53-13194 |
RING, Retaining |
| 22 |
821961 |
ROD |
| 23 |
8165621 |
DISC |
| 24 |
821958A1 |
PLATE KIT |
| 25 |
10-40011126 |
SCREW, (M6 x 13) Stainless Steel |
| 26 |
821957 |
BRAKE PLATE |
| 27 |
12-29330 |
WASHER |
| 28 |
821959 |
HANDLE |
| 29 |
11-8M0204726 |
NUT, (.375-24) |
▶Swivel Head and Steering Handle (25 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
42213A25 |
SWIVEL HEAD Comment: (GRAY) |
| 2 |
23-823939 |
BUSHING |
| 3 |
8221471 |
PLATE Comment: (USE WITH 5MM SCREWS REF #4) |
| 4 |
10-4006731 |
SCREW, (M6 x 16) |
| 5 |
12-822145 |
WASHER |
| 6 |
13-826792 |
WAVE WASHER |
| 7 |
12-822146 |
WASHER |
| 8 |
821468T9 |
ARM ASSEMBLY, Steering Handle Comment: (GRAY) |
| 9 |
822441 |
RETAINER |
| 10 |
10-40011107 |
SCREW, (M5 x 16) Stainless Steel |
| 11 |
822148A2 |
COVER KIT Comment: (SIDE SHIFT) |
| 12 |
822150 |
PULLEY |
| 13 |
NSS |
NOT SOLD SEPARATE, Pulley Case (PART OF REF. #11) |
| 14 |
10-878608 |
SCREW, (#10-16 x .500) |
| 15 |
432426 |
CABLE, Throttle Comment: (SIDE SHIFT) |
| 16 |
85-960099 |
SLEEVE, (12.00 Inches) Comment: (SIDE SHIFT) |
| 17 |
37-8242004 |
DECAL Comment: (SIDE SHIFT) |
| 18 |
8M0221732 |
GRIP |
| 19 |
87-8M0104615 |
SWITCH ASSEMBLY, Stop |
| 20 |
821972T |
KNOB, Throttle |
| 21 |
892995 |
LOCK, Throttle |
| 22 |
10-8M0204707 |
SCREW, (M6 x 25) |
| 23 |
821465 |
HANDLE, Throttle Comment: (SIDE SHIFT) |
| 24 |
821463T01 |
TILLER TUBE |
| 25 |
24-96203 |
SPRING |
▶Throttle and Shift Linkage(Side Shift) (27 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
421811 |
BRACKET, Cable |
| 2 |
10-4000171 |
SCREW, (M6 x 16) |
| 3 |
10-40056107 |
SCREW, (M5 x 16) |
| 4 |
12-4002314 |
WASHER |
| 5 |
421571 |
SHIFT HANDLE |
| 6 |
44459001 |
GROMMET |
| 7 |
8155501 |
SHIFT SHAFT |
| 8 |
42156 |
LEVER |
| 9 |
42153 |
LEVER |
| 10 |
24-39627 |
SPRING |
| 11 |
10-400011 |
SCREW, (M5 x 8) |
| 12 |
421671 |
TIMING LINK |
| 13 |
421631 |
LEVER, Control |
| 14 |
10-40019111 |
SCREW, (M5 x 35) |
| 15 |
13-69708 |
WAVE WASHER |
| 16 |
24-42164 |
SPRING |
| 17 |
24-13676 |
SPRING |
| 18 |
421662 |
ACTUATOR |
| 19 |
23-421621 |
BUSHING |
| 20 |
12-69056 |
WASHER, (.255 x .620 x .030) Stainless Steel |
| 21 |
10-4000333 |
SCREW, (M6 x 40) |
| 22 |
42161 |
LINK INTERLOCK |
| 23 |
421592 |
LEVER |
| 24 |
24-42160 |
SPRING |
| 25 |
10-4000331 |
SCREW, (M6 x 30) |
| 26 |
12-69056 |
WASHER, (.255 x .620 x .030) Stainless Steel |
| 27 |
23-421581 |
BUSHING |
▶Throttle and Shift Linkage(Tiller Handle Models) (34 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
8M0047593 |
CONTROL PLATFORM |
| 2 |
94085A1 |
GEAR |
| 3 |
10-826650 |
SCREW, (M6 x 30) |
| 4 |
12-8M0214930 |
WASHER |
| 5 |
23-856737 |
SPACER (SHORT) |
| 6 |
11-400212 |
NUT, (M6) Stainless Steel |
| 7 |
42151 |
LEVER, Primary |
| 8 |
10-4000333 |
SCREW, (M6 x 40) |
| 9 |
23-856738 |
SPACER (LONG) |
| 10 |
10-4000171 |
SCREW, (M6 x 16) |
| 11 |
421671 |
TIMING LINK |
| 12 |
421631 |
LEVER, Control |
| 13 |
10-40019111 |
SCREW, (M5 x 35) |
| 14 |
421662 |
ACTUATOR |
| 15 |
42161 |
LINK INTERLOCK |
| 16 |
10-4000333 |
SCREW, (M6 x 40) |
| 17 |
12-69056 |
WASHER, (.255 x .620 x .030) Stainless Steel |
| 18 |
23-421621 |
BUSHING |
| 19 |
24-42164 |
SPRING |
| 20 |
13-69708 |
WAVE WASHER |
| 21 |
24-13676 |
SPRING |
| 22 |
8M0084745 |
LINK ASSEMBLY, Throttle |
| 23 |
8M0084742 |
SOCKET |
| 24 |
421592 |
LEVER |
| 25 |
23-421581 |
BUSHING |
| 26 |
24-42160 |
SPRING |
| 27 |
10-4000331 |
SCREW, (M6 x 30) |
| 28 |
12-69056 |
WASHER, (.255 x .620 x .030) Stainless Steel |
| 29 |
42156 |
LEVER |
| 30 |
42153 |
LEVER |
| 31 |
8155501 |
SHIFT SHAFT |
| 32 |
815567T02 |
SHIFT LINK |
| 33 |
10-400011 |
SCREW, (M5 x 8) |
| 34 |
24-39627 |
SPRING |
▶Tools-Special (1 parts)
| Ref |
OEM Part # |
Part Name |
| - |
NSS |
NOT SOLD SEPARATE, Expanding Rod (Snap-On #CG40A6) |
100-Hour / Annual Service Checklist
Regular maintenance keeps your Mercury XR10 running reliably season after season. Most of these tasks can be performed with basic tools and the factory service manual.
- Replace water pump impeller and inspect wear plate
- Change engine oil and oil filter (check drain plug washer)
- Replace spark plugs and check ignition timing
- Drain and refill lower unit gear oil; inspect for water contamination
- Inspect fuel lines, primer bulb, and fuel filter for deterioration
- Check and replace sacrificial anodes (zinc or aluminum)
- Inspect propeller for damage; check shaft seal and cotter pin
- Check valve clearance (refer to service manual for specifications)
- Lubricate all grease points (steering, tilt tube, shift linkage)
- 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.
