🔎 Mercury 9.9 (2 CYL.) (International) Reference Library — Exploded parts diagrams (25 diagrams), specifications, common issues, and maintenance checklist.
The Mercury 9.9 (2 CYL.) (International) is a 4-Stroke, Inline 2-Cylinder, EFI outboard motor. A popular choice for small fishing boats, inflatable RIBs, and sailboat auxiliaries.
Quick Reference Specifications
| Specification |
Value |
| Engine Type |
4-Stroke, Inline 2-Cylinder, EFI |
| Horsepower |
10 HP |
| Displacement |
209 cc |
| Bore x Stroke |
55 mm x 44 mm |
| Spark Plug (Type & Gap) |
NGK DCPR6E |
| Engine Oil Capacity |
0.8 L (27 fl oz) |
| Recommended Engine Oil |
SAE 10W-30 Mercury 4-Stroke Outboard Oil |
| Gear Case Oil Capacity |
320 mL (10.8 fl oz) |
| Idle Speed (in gear) |
900 RPM |
| 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 9.9 (2 CYL.) (International):
-
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 9.9 (2 CYL.) (International).
▶Accessories (25 parts)
| Ref |
OEM Part # |
Part Name |
| - |
10-8230426 |
BOLT |
| 1 |
803795A1 |
DRAG LINK KIT |
| 2 |
10-8230423 |
BOLT |
| 3 |
12-16192 |
WASHER |
| 4 |
23-803796 |
COLLAR |
| 5 |
11-95374 |
NUT, Nylon |
| 6 |
12-9539210 |
WASHER |
| 7 |
11-161473 |
NUT, Nylon |
| 8 |
853825 |
CAP |
| 9 |
23-853826 |
SPACER |
| 10 |
803799A1 |
IGNITION CHECKER |
| 11 |
48-803800 |
TEST PROP |
| 12 |
803797A1 |
LOCK KIT, Reverse |
| 13 |
8M0123939 |
RECTIFIER KIT |
| 14 |
84-853799A4 |
CABLE ASSEMBLY, Yellow |
| 15 |
84-853799A3 |
CABLE ASSEMBLY, White |
| 16 |
8538281 |
HANDLE, (1.0 Meters) (1.0M) |
| 17 |
79-804632T01 |
TEMPERATURE GAUGE, Water |
| 18 |
88-804634 |
BULB |
| 19 |
802613 |
DAMPER |
| 20 |
804635 |
BRACKET |
| 21 |
11-802617 |
NUT |
| 22 |
13-168181 |
LOCKWASHER |
| 23 |
804636 |
SENSOR, Water Temperature |
| 24 |
84-804637 |
LEAD WIRE |
▶Air Silencer and Fuel Lines (23 parts)
| Ref |
OEM Part # |
Part Name |
| - |
27-8M0065497 |
GASKET SET, Powerhead Comment: (9.9) |
| 1 |
3303-803687T01 |
CARBURETOR |
| 2 |
803694 |
SNAP, Link Rod |
| 3 |
27-803699001 |
GASKET |
| 4 |
803697 |
SILENCER, Air |
| 5 |
10-163291 |
BOLT |
| 6 |
12-16826 |
WASHER, Stainless Steel |
| 7 |
10-803698 |
SCREW |
| 8 |
25-16226 |
GROMMET |
| 9 |
803696 |
LEVER, Choke |
| 10 |
17-16085 |
PIN (Plastic) |
| 11 |
8M0155125 |
ROD, Choke |
| 12 |
35-8M0088825 |
FILTER ASSEMBLY, Fuel Comment: SN# 0N072167 & Up |
| 13 |
25-8518151 |
O-RING Comment: SN# 0N072166 & Below |
| 14 |
35-853733002 |
FILTER Comment: SN# 0N072167 & Up |
| 15 |
25-851815006 |
O-RING Comment: SN# 0N072167 & Up |
| 16 |
853735002 |
CUP Comment: SN# 0N072167 & Up |
| 17 |
12-8M0135942 |
WASHER |
| 18 |
11-400213 |
NUT |
| 19 |
32-95394010 |
TUBING, (185 mm) |
| 20 |
32-95394010 |
TUBING, (185 mm) |
| 21 |
54-95395 |
CLIP, Stainless Steel |
| 22 |
23-163362 |
BUSHING |
▶Carburetor (32 parts)
| Ref |
OEM Part # |
Part Name |
| - |
27-8M0065497 |
GASKET SET, Powerhead Comment: (9.9) |
| 1 |
3303-803687T01 |
CARBURETOR |
| 2 |
10-8M0054702 |
SCREW |
| 3 |
24-162641 |
SPRING, (11 mm) |
| 4 |
10-803690 |
SCREW, Adjusting |
| 5 |
25-161783 |
O-RING |
| 6 |
10-809571003 |
SCREW |
| 7 |
8555401 |
COVER, Carburetor |
| 8 |
27-8555412 |
GASKET |
| 9 |
80,803689 |
JET, Pilot |
| 10 |
19-855566 |
PLUG |
| 11 |
803692 |
MAIN NOZZLE |
| 12 |
110,803688 |
JET, Main |
| 13 |
162545 |
FLOAT NEEDLE |
| 14 |
162532 |
FLOAT |
| 15 |
17-162561 |
PIN |
| 16 |
10-8536981 |
SCREW |
| 17 |
27-855567 |
GASKET |
| 18 |
803691 |
FLOAT BOWL |
| 19 |
10-8M0054703 |
SCREW, Drain |
| 20 |
27-8M0224378 |
GASKET |
| 21 |
10-162603 |
SCREW |
| 22 |
27-8555691 |
GASKET |
| 23 |
8537312 |
DIAPHRAGM |
| 24 |
10-851813 |
SCREW |
| 25 |
21-851812 |
CHECK VALVE |
| 26 |
11-851814 |
NUT |
| 27 |
8537291 |
HOUSING, Pump |
| 28 |
27-855569 |
GASKET |
| 29 |
855568 |
COVER |
| 30 |
10-8M0062252 |
SCREW |
| 31 |
25-8M0065583 |
GROMMET |
▶Clamp Bracket (17 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
8M0059754 |
CLAMP BRACKET, Starboard Comment: SN# 0N080619 & Up |
| 2 |
8M0059755 |
CLAMP BRACKET, Port Comment: SN# 0N080619 & Up |
| 3 |
11-85372214 |
CAP NUT |
| 4 |
898101191 |
TILT TUBE |
| 5 |
11-853722029 |
NUT, Nylon |
| 6 |
16198004 |
THRUST ROD |
| 7 |
24-815093003 |
SPRING |
| 8 |
10-16200A1 |
THUMB SCREW ASSEMBLY, 1/2 Inch Thread Size |
| 9 |
12-95379 |
PAD |
| 10 |
11-400212 |
NUT |
| 11 |
12-16826 |
WASHER, Stainless Steel |
| 12 |
10-167051 |
BOLT, (M6 x 20) |
| 13 |
898101938 |
DISTANCE PIECE Comment: SN# 0N060053 & Up |
| 14 |
10-879194310 |
BOLT |
| 15 |
12-16192 |
WASHER |
| 16 |
11-879194337 |
NUT |
| 17 |
97-823913Q |
ANODE |
▶Cowling, 0N159949 and below (21 parts)
| Ref |
OEM Part # |
Part Name |
| - |
27-8M0065497 |
GASKET SET, Powerhead Comment: (9.9) |
| 1 |
100-8M0073910 |
TOP COWL ASSEMBLY, Black - Without decals Comment: 9.9/18 |
| 2 |
8037931 |
CAP, Cowl Comment: (Silver) |
| 3 |
11-400212 |
NUT, (M6) Stainless Steel |
| 4 |
13-400256 |
LOCKWASHER, (M6) |
| 5 |
12-953921 |
WASHER, Stainless Steel |
| 6 |
851851004 |
SEAL, Rubber |
| 7 |
25-162281 |
SEAL, Rubber |
| 8 |
100-8M0129289 |
BOTTOM COWL |
| 9 |
25-162311 |
GROMMET |
| 10 |
25-162312 |
GROMMET |
| 11 |
26-8036675 |
SEAL, Oil |
| 12 |
162221 |
HOOK |
| 13 |
10-16223 |
BOLT, (M6 x 14) |
| 14 |
12-953921 |
WASHER, Stainless Steel |
| 15 |
13-16221 |
WAVE WASHER |
| 16 |
12-953922 |
WASHER |
| 17 |
162186 |
HOOK LEVER |
| 18 |
26-16219 |
SEAL |
| 19 |
23-163365 |
BUSHING |
| 20 |
10-167051 |
BOLT, (M6 x 20) |
▶Cowling, 0N159950 and up (20 parts)
| Ref |
OEM Part # |
Part Name |
| - |
27-8M0065497 |
GASKET SET, Powerhead Comment: (9.9) |
| 1 |
100-8M0132366 |
TOP COWL ASSEMBLY, Black - Without Decals Comment: 9.9/18 |
| 2 |
8037931 |
CAP, Cowl Comment: (Silver) |
| 3 |
11-400212 |
NUT, (M6) Stainless Steel |
| 4 |
13-400256 |
LOCKWASHER, (M6) |
| 5 |
12-953921 |
WASHER, Stainless Steel |
| 6 |
851851004 |
SEAL, Rubber |
| 8 |
100-8M0129289 |
BOTTOM COWL |
| 9 |
25-162311 |
GROMMET |
| 10 |
25-162312 |
GROMMET |
| 11 |
26-8036675 |
SEAL, Oil |
| 12 |
162221 |
HOOK |
| 13 |
10-16223 |
BOLT, (M6 x 14) |
| 14 |
12-953921 |
WASHER, Stainless Steel |
| 15 |
13-16221 |
WAVE WASHER |
| 16 |
12-953922 |
WASHER |
| 17 |
162186 |
HOOK LEVER |
| 18 |
26-16219 |
SEAL |
| 19 |
23-163365 |
BUSHING |
| 20 |
10-167051 |
BOLT, (M6 x 20) |
▶Crankshaft, Pistons and Connecting Rods (21 parts)
| Ref |
OEM Part # |
Part Name |
| - |
8M0047750 |
POWERHEAD ASSEMBLY Comment: (9.9) |
| 1 |
8M0047749 |
CRANKSHAFT KIT |
| 2 |
8M0074253 |
PIN, Crank |
| 3 |
474-803672A02 |
CRANKSHAFT, A |
| 4 |
31-803675 |
BEARING, Needle |
| 5 |
629-803674T |
CONNECTING ROD |
| 6 |
474-8M0090845 |
CRANKSHAFT, B |
| 7 |
30-160494 |
BEARING, Ball |
| 8 |
26-8036672 |
SEAL |
| 9 |
17-161791 |
PIN |
| 10 |
474-8M0090846 |
CRANKSHAFT, C |
| 11 |
474-8036724 |
CRANKSHAFT, D |
| 12 |
30-160494 |
BEARING, Ball |
| 13 |
23-853715 |
SPACER |
| 14 |
53-853714 |
C CLIP |
| 15 |
28-160531 |
KEY |
| 16 |
31-16052 |
BEARING, Roller |
| 17 |
779-803677T01 |
PISTON Comment: (0.5 Oversize)(15/18) |
| 18 |
39-8M0080352 |
RING SET, Piston Comment: (0.5 Oversize)(15/18),Services one piston |
| 19 |
53-16057 |
CLIP, Component of Piston Assy |
| 20 |
41-825713002 |
PIN, Piston, Component of Piston Assy Comment: (9.9) |
▶Cylinder Block (47 parts)
| Ref |
OEM Part # |
Part Name |
| - |
8M0047750 |
POWERHEAD ASSEMBLY Comment: (9.9) |
| 1 |
878-803660A06 |
CYLINDER BLOCK ASSEMBLY Comment: (9.9) |
| 2 |
22-8129601 |
NIPPLE |
| 3 |
22-8M0064617 |
CONNECTOR |
| 4 |
17-16119 |
PIN, Dowel |
| 5 |
10-166951 |
BOLT |
| 6 |
12-16826 |
WASHER |
| 7 |
21-16700 |
CHECK VALVE |
| 8 |
24-8130282 |
SPRING |
| 9 |
19-803661 |
PLUG |
| 10 |
22-812960006 |
NIPPLE |
| 11 |
10-16832 |
BOLT, (M6 x 16) |
| 12 |
97-823913Q |
ANODE |
| 13 |
900-8M0069700 |
CYLINDER HEAD Comment: (15/18) Design II |
| 14 |
27-803663034 |
GASKET Comment: (9.9) |
| 15 |
10-16830A1 |
SCREW KIT |
| 16 |
8537052 |
CAP |
| 17 |
54-803563005 |
CLAMP |
| 18 |
27-8M0214960 |
GASKET |
| 19 |
8M0228411 |
THERMOSTAT |
| 20 |
33-8M0181925 |
SPARK PLUG, (NGK# BR7HS-10) |
| 21 |
10-8M0106721 |
BOLT Comment: SN# ON159950 & Up |
| 22 |
12-16192 |
WASHER Comment: SN# ON159950 & Up |
| 23 |
803666 |
COVER, Exhaust - Outer |
| 24 |
27-803663024 |
GASKET |
| 25 |
8M0065485 |
COVER, Exhaust - Inner |
| 26 |
27-803663025 |
GASKET |
| 27 |
10-8M0204707 |
SCREW, (M6 x 25) |
| 28 |
12-16826 |
WASHER |
| 29 |
803671 |
THRUST PLATE, Upper |
| 30 |
8036711 |
THRUST PLATE, Lower |
| 31 |
25-803670 |
O-RING |
| 32 |
26-8M0065585 |
SEAL, Oil |
| 33 |
27-803663020 |
GASKET |
| 34 |
17-16119 |
PIN, Dowel |
| 35 |
54-95224 |
CLIP |
| 36 |
32-95223008 |
TUBING, (280 mm) |
| 37 |
32-95223009 |
TUBING, (220 mm) |
| 38 |
54-95332002 |
CLIP |
| 39 |
25-853709 |
O-RING |
| 40 |
26-803667 |
SEAL, Oil |
| 41 |
1100-803668 |
END CAP, Upper |
| 42 |
803669 |
SET RING |
| 43 |
853711 |
GUIDE PLATE |
| 44 |
10-166953 |
BOLT |
| 45 |
21-42657A3 |
CHECK VALVE |
| 46 |
84-853740 |
GROUND WIRE Comment: SN# ON159950 & Up |
▶Driveshaft Housing (23 parts)
| Ref |
OEM Part # |
Part Name |
| - |
27-8M0065497 |
GASKET SET, Powerhead Comment: (9.9) |
| 1 |
1500-8M0121378 |
HOUSING, Driveshaft Comment: (Long) |
| 2 |
16-879194301 |
STUD |
| 3 |
10-8M0106720 |
BOLT |
| 4 |
12-8M0135942 |
WASHER |
| 5 |
27-8M0231496 |
GASKET |
| 6 |
17-16119 |
PIN, Dowel |
| 7 |
25-803736 |
GROMMET |
| 8 |
27-803728003 |
GASKET |
| 9 |
10-823042 |
BOLT |
| 10 |
803727 |
TUBE, Exhaust |
| 11 |
10-8230427 |
BOLT |
| 12 |
84-898101089 |
GROUND WIRE |
| 13 |
10-879194310 |
BOLT |
| 14 |
803775 |
RUBBER MOUNT, Side |
| 15 |
8037751 |
RUBBER MOUNT, Front |
| 16 |
803776 |
COVER |
| 17 |
12-8M0135942 |
WASHER |
| 18 |
11-879194337 |
NUT |
| 19 |
10-167051 |
BOLT, (M6 x 20) |
| 20 |
97-823913Q |
ANODE |
| 21 |
8037761 |
COVER |
| 22 |
10-879194309 |
BOLT |
▶Electric Start Components (32 parts)
| Ref |
OEM Part # |
Part Name |
| - |
8M0095390 |
STARTER MOTOR KIT, Electric |
| 1 |
50-803835T01 |
STARTER MOTOR ASSEMBLY |
| 2 |
803836 |
PINION |
| 3 |
803837 |
BRUSH SET (Positive) |
| 4 |
8038371 |
BRUSH SET (Negative) |
| 5 |
803838 |
HOLDER, Brush |
| 6 |
10-161267 |
BOLT |
| 7 |
13-17025 |
LOCKWASHER |
| 8 |
84-8M0069818 |
CABLE ASSEMBLY, Starter |
| 9 |
85-8538161 |
CAP |
| 10 |
87-853820A1 |
MAIN SWITCH |
| 11 |
853821 |
PROTECTOR |
| 12 |
54-803563005 |
CLAMP |
| 13 |
262-8037001 |
FLYWHEEL (Wiring Gear) |
| 14 |
803839 |
BRACKET |
| 15 |
85-853816 |
CAP |
| 16 |
84-853813A1 |
WIRE ASSEMBLY, Fuse |
| 17 |
88-853814 |
FUSE |
| 18 |
89-853809T |
SOLENOID, Starter |
| 19 |
10-162235 |
BOLT |
| 20 |
10-16223 |
BOLT, (M6 x 14) |
| 21 |
56762 |
TIE STRAP, (4.00 Inches) |
| 22 |
87-8M0127937 |
SWITCH, Neutral |
| 23 |
23-803842 |
SPACER |
| 24 |
10-85554411 |
SCREW |
| 25 |
8037151 |
BRACKET |
| 26 |
803841 |
ACTUATOR |
| 27 |
84-803820 |
GROUND WIRE |
| 28 |
8538116 |
RECTIFIER |
| 29 |
10-16123 |
SCREW, (25 mm) |
| 30 |
13-16079 |
LOCKWASHER |
| 31 |
84-853815 |
WIRE, Battery |
▶Electrical (38 parts)
| Ref |
OEM Part # |
Part Name |
| - |
8M0075401 |
KIT, Ground wire/Head bolt/Washer Comment: SN# ON159950 & Up |
| 1 |
262-803700002 |
FLYWHEEL |
| 2 |
11-851832001 |
NUT, Gold |
| 3 |
12-8537011 |
WASHER |
| 4 |
803701A1 |
PLATE ASSEMBLY, Coil |
| 5 |
803702T |
COIL, Exciter |
| 6 |
10-95313 |
SCREW |
| 7 |
803703 |
ALTERNATOR SET |
| 8 |
10-82303113 |
SCREW |
| 9 |
853738 |
GUIDE, Wire |
| 10 |
10-8230314 |
SCREW |
| 11 |
54-803828 |
CLAMP |
| 12 |
10-8230315 |
SCREW |
| 13 |
803829001 |
CAM, Throttle Comment: (15/18) |
| 14 |
10-82304226 |
BOLT |
| 15 |
10-8555445 |
SCREW |
| 16 |
54-17169 |
CLAMP |
| 17 |
54-816311T |
TIE STRAP, (8.00 Inches) |
| 18 |
853741 |
CAP |
| 19 |
19-853994 |
PLUG |
| 20 |
84-17175 |
HARNESS ASSEMBLY |
| 21 |
87-823037A2 |
SWITCH ASSEMBLY, Stop - Lanyard |
| 22 |
823054 |
LANYARD |
| 23 |
10-85554410 |
SCREW |
| 24 |
54-803563005 |
CLAMP |
| 25 |
10-8230427 |
BOLT, (M6 x 12) |
| 26 |
8M0180176 |
CD UNIT |
| 27 |
12-953921 |
WASHER, Stainless Steel |
| 28 |
803705 |
BRACKET |
| 29 |
10-82304227 |
BOLT Comment: Design II |
| 30 |
10-82304227 |
BOLT Comment: Design II |
| 31 |
13-400256 |
LOCKWASHER, (M6) Comment: Design I |
| 32 |
12-16826 |
WASHER, Stainless Steel Comment: Design I |
| 33 |
27-851834 |
GASKET Comment: Design I |
| 34 |
23-803707 |
SPACER Comment: Design I |
| 35 |
8M0121784 |
COIL ASSEMBLY, Ignition |
| 36 |
85-855543 |
BOOT, With Resistance |
| 37 |
84-853740 |
GROUND WIRE Comment: SN# ON159950 & Up |
▶Fuel Tank(Plastic- 6.6 Gallon) (19 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
1259-859063A2 |
TANK ASSEMBLY, Fuel (Quick Connect) |
| 2 |
36-816976Q1 |
CAP ASSEMBLY, Fuel-Manual Vent |
| 3 |
27-8169771 |
GASKET, Fuel Cap |
| 4 |
859059A2 |
PICK UP ASSEMBLY, Fuel (Threaded Connection) |
| 5 |
8M0084089 |
PICK UP ASSEMBLY, Fuel (Quick Connect) |
| 6 |
859056 |
FLOAT |
| 7 |
10-40056107 |
SCREW, (M5 x 16) |
| 8 |
12-859080 |
WASHER |
| 9 |
27-859072 |
GASKET |
| 10 |
32-8M0126969 |
FUEL LINE ASSEMBLY |
| 11 |
13330Q07 |
BULB ASSEMBLY, Primer |
| 12 |
21-13331A3 |
CHECK VALVE ASSEMBLY |
| 13 |
21-13331A4 |
CHECK VALVE ASSEMBLY |
| 14 |
54-4158210 |
CLAMP, Nylon |
| 15 |
54-41582Q7 |
CLAMP |
| 16 |
22-89771Q2 |
CONNECTOR, (.250-18) |
| 17 |
22-8M0120628 |
CONNECTOR, Fuel |
| 18 |
54-853798 |
CLAMP |
| 19 |
54-41582Q7 |
CLAMP |
▶Gear Housing, Driveshaft (38 parts)
| Ref |
OEM Part # |
Part Name |
| - |
27-8M0082884 |
GASKET SET, Lower Unit |
| 1 |
1668-803729A3 |
GEAR HOUSING ASSEMBLY, Basic |
| 2 |
31-160521 |
BEARING, Needle |
| 3 |
22-8M0229353 |
PLUG |
| 4 |
27-95220 |
GASKET |
| 5 |
853762T01 |
TRIM TAB |
| 6 |
10-16832 |
BOLT, (M6 x 16) |
| 7 |
16133 |
STRAINER, Water |
| 8 |
10-16134 |
SCREW |
| 9 |
803730002 |
STRAINER, Water |
| 10 |
10-17635 |
SCREW |
| 11 |
11-85372216 |
NUT |
| 12 |
22-8M0229353 |
PLUG |
| 13 |
27-95220 |
GASKET |
| 14 |
12-8M0135942 |
WASHER |
| 15 |
11-879194337 |
NUT |
| 16 |
803758 |
GUIDE |
| 17 |
32-8037551 |
TUBE, Water Comment: Long |
| 18 |
26-8036673 |
SEAL |
| 19 |
803756 |
STOPPER |
| 20 |
803754 |
GUARD PIPE |
| 21 |
25-8M0065492 |
GROMMET |
| 22 |
46-803750A05 |
HOUSING, Water Pump, Upper |
| 23 |
26-8036674 |
SEAL |
| 24 |
10-823042046 |
BOLT |
| 25 |
803751 |
LINER, Water Pump |
| 26 |
47-8M0214944 |
IMPELLER |
| 27 |
803753 |
GUIDE PLATE |
| 28 |
46-803750A04 |
HOUSING, Water Pump, Lower |
| 29 |
25-8537096 |
O-RING |
| 30 |
26-803752 |
SEAL, Oil |
| 31 |
15-813276005 |
SHIM, (0.5) |
| 32 |
30-16132T05 |
BEARING, Ball |
| 33 |
45-8037381 |
DRIVESHAFT Comment: Long |
| 34 |
28-8M0173418 |
KEY |
| 35 |
43-8M0183193 |
GEAR, Pinion |
| 36 |
11-85372211 |
NUT |
| 37 |
27-8M0075040 |
GASKET, Guide Plate Comment: SN# ON179314 & Up |
▶Gear Housing, Propeller Shaft (24 parts)
| Ref |
OEM Part # |
Part Name |
| - |
27-8M0082884 |
GASKET SET, Lower Unit |
| 1 |
1668-803729A3 |
GEAR HOUSING ASSEMBLY, Basic |
| 37 |
30-16132T01 |
BEARING, Ball |
| 38 |
43-8M0183172 |
GEAR, Forward |
| 39 |
803747 |
PUSH ROD |
| 40 |
853764003 |
HOLDER |
| 41 |
24-803746 |
SPRING |
| 42 |
52-803745 |
CLUTCH |
| 43 |
17-160851 |
PIN |
| 44 |
24-176672 |
SPRING |
| 45 |
44-8M0088568 |
PROPELLER SHAFT |
| 46 |
12-803742 |
WASHER |
| 47 |
43-8M0183196 |
GEAR, Reverse |
| 48 |
8M0070877 |
CARRIER ASSEMBLY, Bearing |
| 49 |
25-8M0087846 |
O-RING |
| 50 |
30-16132T01 |
BEARING, Ball |
| 51 |
31-803734 |
BEARING, Needle |
| 52 |
26-161622 |
SEAL, Oil |
| 53 |
10-8M0075053 |
BOLT |
| 54 |
8M0143215 |
THRUST HOLDER |
| 55 |
48-897752A11 |
PROPELLER, (10 Pitch) |
| 56 |
12-161402 |
WASHER |
| 57 |
11-161471 |
PROP NUT |
| 58 |
18-8150264 |
COTTER PIN |
▶Gear Shift (28 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
8M0172382 |
CAM |
| 2 |
17-16179 |
PIN |
| 3 |
23-803761 |
BUSHING |
| 4 |
803762 |
CLAMP |
| 5 |
10-898103153 |
SCREW |
| 6 |
25-8537096 |
O-RING |
| 7 |
25-161772 |
O-RING |
| 8 |
803760019 |
CAM ROD Comment: (Ultra Long) |
| 9 |
803767 |
SHIFT ROD JOINT |
| 10 |
17-952189 |
PIN, Dowel |
| 11 |
25-8037591 |
GROMMET |
| 12 |
803763 |
LEVER, Shift |
| 13 |
24-8M0138738 |
STOPPER |
| 14 |
10-16832 |
BOLT, (M6 x 16) |
| 15 |
13-400256 |
LOCKWASHER, (M6) |
| 16 |
23-163361 |
BUSHING |
| 17 |
10-16832 |
BOLT, (M6 x 16) |
| 18 |
12-16826 |
WASHER, Stainless Steel |
| 19 |
803764 |
PLATE, Stopper |
| 20 |
803765 |
ADJUSTER, Shift Lever |
| 21 |
18-8150268 |
COTTER PIN |
| 22 |
13-8537234 |
WAVE WASHER |
| 23 |
17-160852 |
PIN |
| 24 |
18-81502610 |
COTTER PIN |
| 25 |
803768 |
LEVER, Shift Rod |
| 26 |
18-8150268 |
COTTER PIN |
| 27 |
8037661 |
SHIFT ROD Comment: (Long) |
| 28 |
25-16823 |
GROMMET |
▶Inlet Manifold (21 parts)
| Ref |
OEM Part # |
Part Name |
| - |
8M0047750 |
POWERHEAD ASSEMBLY Comment: (9.9) |
| 1 |
803685A1 |
MANIFOLD ASSEMBLY, Inlet |
| 2 |
22-8129601 |
NIPPLE |
| 3 |
10-82303111 |
SCREW |
| 4 |
54-95224 |
CLIP |
| 5 |
32-95223008 |
TUBING, (280 mm) |
| 6 |
803681 |
ROD |
| 7 |
803682 |
END, Throttle Lever |
| 8 |
879148022 |
ARM, Throttle (With Roller) |
| 9 |
10-8M0050972 |
SCREW |
| 10 |
10-16696 |
BOLT |
| 11 |
12-809931044 |
WASHER |
| 12 |
27-803663030 |
GASKET |
| 13 |
803686A1 |
REED PLATE ASSEMBLY |
| 14 |
27-803663029 |
GASKET |
| 15 |
16-8036841 |
STUD |
| 16 |
16-803684 |
STUD |
| 17 |
10-161265 |
BOLT |
| 18 |
13-16079 |
LOCKWASHER |
| 19 |
10-8150631 |
BOLT |
| 20 |
11-162711 |
NUT |
▶Recoil Starter (40 parts)
| Ref |
OEM Part # |
Part Name |
| - |
27-8M0065497 |
GASKET SET, Powerhead Comment: (9.9) |
| 1 |
8M0121770 |
HOUSING, Starter |
| 2 |
17-952187 |
PIN, Roll |
| 3 |
11-400212 |
NUT, (M6) Stainless Steel |
| 4 |
13-16818 |
LOCKWASHER |
| 5 |
12-809931044 |
WASHER |
| 6 |
8M0073654 |
PLATE, Seal |
| 7 |
8126401 |
HANDLE, Starter Rope |
| 8 |
25-16109 |
O-RING |
| 9 |
853755 |
RETAINER |
| 10 |
50-161081 |
ROPE, Starter |
| 11 |
24-8126451 |
SPRING, Starter |
| 12 |
803717 |
REEL |
| 13 |
8037181 |
GUIDE |
| 14 |
803718 |
GUIDE |
| 15 |
803719 |
SHAFT, Starter |
| 16 |
10-16105 |
BOLT |
| 17 |
23-8537432 |
BUSHING |
| 18 |
812635T01 |
RATCHET |
| 19 |
12-161404 |
WASHER |
| 20 |
53-953181 |
E RING |
| 21 |
8M0169412 |
SNAP, Link Rod |
| 22 |
8036812 |
LOCK LINK, Starter |
| 23 |
8036813 |
LINK ROD, Throttle Stop |
| 24 |
803722 |
STOPPER, Throttle |
| 25 |
8M0106723 |
SHAFT, Throttle Stop |
| 26 |
13-17641 |
WAVE WASHER |
| 27 |
10-16123 |
SCREW |
| 28 |
11-16081 |
NUT |
| 29 |
803721 |
CAM |
| 30 |
23-855545 |
COLLAR |
| 31 |
10-855544 |
SCREW |
| 32 |
10-8555449 |
SCREW |
| 33 |
24-812645007 |
SPRING |
| 34 |
23-895130 |
COLLAR |
| 35 |
17634 |
LOCK, Starter |
| 36 |
10-16830 |
BOLT |
| 37 |
12-16826 |
WASHER, Stainless Steel |
| 38 |
54-8M0130961 |
CLAMP |
| 39 |
8M0084268 |
SEAL, Starter Comment: SN# 0N159950 & Up |
▶Remote Control Attaching Kit (23 parts)
| Ref |
OEM Part # |
Part Name |
| - |
803874A1 |
ATTACHING KIT, Remote Control |
| 1 |
8538022 |
PLATE, Steering Hook |
| 2 |
10-8230428 |
BOLT |
| 3 |
25-853803 |
GROMMET |
| 4 |
12-16192 |
WASHER |
| 5 |
11-400213 |
NUT, (M8) Stainless Steel |
| 6 |
803877 |
BRACKET |
| 7 |
10-162233 |
SCREW |
| 8 |
853804 |
CONNECTOR SHIFT KIT |
| 9 |
12-17029 |
WASHER |
| 10 |
11-400212 |
NUT, (M6) Stainless Steel |
| 11 |
10-898103179 |
BOLT |
| 12 |
803875 |
BRACKET |
| 13 |
13-16079 |
LOCKWASHER |
| 14 |
11-16081 |
NUT, Stainless Steel |
| 15 |
11-400212 |
NUT, (M6) Stainless Steel |
| 16 |
13-400256 |
LOCKWASHER, (M6) |
| 17 |
853801 |
BALL JOINT |
| 18 |
17026 |
BRACKET |
| 19 |
17027 |
CAP |
| 20 |
24-17028 |
SPRING |
| 21 |
84-853799A2 |
CABLE ASSEMBLY (5.9M) |
| 22 |
25-162262 |
GROMMET |
▶Remote Control-4000 Side Mount(Non Power Trim) (71 parts)
| Ref |
OEM Part # |
Part Name |
| - |
8M0178532 |
REMOTE CONTROL, Electric Start - Non Power Trim |
| 1 |
NSS |
NOT SOLD SEPARATE, Housing, Front |
| 2 |
37-170622 |
DECAL, (F-N-R) |
| 3 |
NSS |
NOT SOLD SEPARATE, Decal, Throttle Friction |
| 4 |
NSS |
NOT SOLD SEPARATE, Decal, Run/Off |
| 5 |
84-850731A2 |
HARNESS ASSEMBLY |
| 6 |
54-816311T |
TIE STRAP, (8.00 Inches) |
| 7 |
19-11023 |
PLUG |
| 8 |
8M0205858 |
HANDLE KIT |
| 9 |
NSS |
NOT SOLD SEPARATE, Hub, Handle |
| 10 |
10-4007154 |
SCREW, (M8 x 30) |
| 11 |
12-8M0207778 |
WASHER |
| 12 |
10-40118107 |
SCREW, (M5 x 18) |
| 13 |
10-4005685 |
SCREW, (M4 x 10) |
| 14 |
16921 |
BRACKET, Lock Bar Support |
| 15 |
10-87775510 |
SCREW, (M4 x 10) |
| 16 |
8M0207317 |
LOCK BAR, Red |
| 17 |
24-16924 |
SPRING |
| 18 |
8811411 |
GRIP |
| 19 |
881146 |
PLUG |
| 20 |
881137A1 |
CAP/DECAL ASSEMBLY |
| 21 |
10-40118107 |
SCREW, (M5 x 18) |
| 22 |
13-16923 |
LOCKWASHER, External |
| 23 |
16899T |
HOLDER, Neutral Lock |
| 24 |
16917 |
COVER |
| 25 |
10-40116110T |
SCREW, (M6 x 110) |
| 26 |
881145 |
KNOB, Throttle Friction |
| 27 |
12-16896 |
WASHER |
| 28 |
53-13194 |
RING, Retaining |
| 29 |
16895 |
ARM ASSEMBLY, Brake |
| 30 |
23-16875 |
BEARING, (1.750 Inside Diameter) |
| 31 |
12-16874 |
WASHER |
| 32 |
13540 |
CAP, Female |
| 33 |
11-401385 |
NUT, (M5) Stainless Steel |
| 34 |
54-85899A1 |
CLIP ASSEMBLY |
| 35 |
NSS |
NOT SOLD SEPARATE, Gear Shift Assembly |
| 36 |
23-16868 |
BEARING, (.750 Inside Diameter) |
| 37 |
12-16870 |
WASHER |
| 38 |
16873 |
ROLLER, Cam |
| 39 |
NSS |
NOT SOLD SEPARATE, Drive Gear |
| 40 |
NSS |
NOT SOLD SEPARATE, Plate, Stud Assembly |
| 41 |
10-4005683 |
SCREW, (M4 x 6) |
| 42 |
16886 |
CLIP |
| 43 |
24-16888 |
SPRING |
| 44 |
16884 |
ROLLER |
| 45 |
16883 |
DRUM ASSEMBLY |
| 46 |
13-16922 |
WAVE WASHER |
| 47 |
NSS |
NOT SOLD SEPARATE, Cover, Bottom |
| 48 |
NSS |
NOT SOLD SEPARATE, Cover, Top |
| 49 |
23-16887 |
BEARING, (.810 Inside Diameter) |
| 50 |
10-40118106 |
SCREW, (M5 x 12) |
| 51 |
16919A1 |
LEVER ASSEMBLY, With Decal |
| 52 |
NSS |
NOT SOLD SEPARATE, Decal, Lift for Fast Idle |
| 53 |
12-35280 |
WASHER, (.255 x .620 x .030) Stainless Steel |
| 54 |
11-401196 |
NUT, (M6) |
| 55 |
17063T |
SPACER |
| 56 |
23-71942 |
BUSHING |
| 57 |
87-17009A5 |
SWITCH ASSEMBLY, Ignition |
| 58 |
11-879755 |
NUT, Special - Black Nylon |
| 59 |
90468A1 |
COVER ASSEMBLY, Key |
| 60 |
10-40056105 |
SCREW, (M5 x 10) |
| 61 |
16879 |
ROLLER, Detent |
| 62 |
16880 |
CLIP |
| 63 |
24-16882 |
SPRING |
| 64 |
10-4005647 |
SCREW, (M3 x 16) |
| 65 |
87-17277T |
SWITCH ASSEMBLY |
| 66 |
87-91941A8 |
SWITCH ASSEMBLY |
| 67 |
15920Q54 |
LANYARD ASSEMBLY |
| 68 |
850753A1 |
SPACER KIT, Rigging |
| 69 |
10-4008820 |
SCREW, (M6 x 20) |
| 70 |
91-892542A01 |
INDICATOR, Shift Load Tool |
▶Reverse Lock (28 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
898103103 |
STOP, Tilt |
| 2 |
10-168307 |
BOLT |
| 3 |
13-400256 |
LOCKWASHER, (M6) |
| 4 |
8M0157137 |
SET PLATE |
| 5 |
23-163364 |
BUSHING |
| 6 |
853774 |
STOP |
| 7 |
24-953832 |
SPRING |
| 8 |
17-170331 |
PIN, Spring |
| 9 |
17-8037841 |
ROD, Reverse Lock |
| 10 |
18-8150261 |
COTTER PIN |
| 11 |
803783001 |
ARM, Reverse Lock |
| 12 |
803782 |
LOCK, Reverse |
| 13 |
24-8037461 |
SPRING |
| 14 |
24-803788 |
SPRING |
| 15 |
803787 |
LINK, Reverse Lock |
| 16 |
17-803784002 |
SHAFT, Reverse Lock |
| 17 |
53-160572 |
E RING |
| 18 |
803789 |
LEVER, Reverse Lock Comment: SN# ON148084 & Below |
| 19 |
12-953921 |
WASHER |
| 20 |
10-803790 |
BOLT Comment: SN# ON148084 & Below |
| 21 |
13-17641 |
WAVE WASHER Comment: SN# ON148084 & Below |
| 22 |
8M0183798 |
GRIP |
| 23 |
8M0051399 |
BUTTON |
| 24 |
12-953925 |
WASHER Comment: SN# ON148085 & Up |
| 25 |
8M0073129 |
LEVER, Reverse Lock Comment: SN# ON148085 & Up |
| 26 |
23-898103107 |
BUSHING Comment: SN# ON148085 & Up |
| 27 |
12-16192 |
WASHER Comment: SN# ON148085 & Up |
| 28 |
10-803790001 |
BOLT, Shoulder Comment: SN# ON148085 & Up |
▶Service/Support Material (1 parts)
| Ref |
OEM Part # |
Part Name |
| - |
37-857116A03 |
DECAL SET Comment: (Mariner 15) |
▶Swivel Bracket (16 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
8M0149919 |
SHAFT, Steering |
| 2 |
10-803777 |
BOLT |
| 3 |
12-879194340 |
WASHER, Stainless Steel |
| 4 |
12-8M0056392 |
WASHER |
| 5 |
8M0153613 |
MOUNT, Rubber (Upper) |
| 6 |
803778 |
DAMPER RUBBER |
| 7 |
803774 |
THRUST PLATE |
| 8 |
23-163363 |
BUSHING |
| 9 |
25-161091 |
O-RING |
| 10 |
1400-8M0073132 |
SWIVEL BRACKET Comment: SN# 0N148085 & Up |
| 11 |
22-824969 |
FITTING, Grease |
| 12 |
84-898101091 |
CABLE ASSEMBLY, Ground |
| 13 |
23-8537435 |
BUSHING |
| 14 |
162052 |
FRICTION PLATE |
| 15 |
24-953831 |
SPRING |
| 16 |
10-879194254 |
BOLT |
▶Throttle Linkage/Steering Handle (44 parts)
| Ref |
OEM Part # |
Part Name |
| - |
8M0133194 |
HANDLE ASSEMBLY, With Friction Control, Includes number 40/41/42/43 Comment: Design II |
| 1 |
160861 |
GRIP |
| 2 |
10-8150461 |
SCREW |
| 3 |
8M0055716 |
HANDLE, Steering, With friction Control Comment: Design II |
| 4 |
37-8M0097201 |
DECAL |
| 5 |
10-8M0050498 |
BOLT |
| 6 |
11-8537227 |
NUT, Nylon |
| 7 |
10-8M0111108 |
BOLT |
| 8 |
18-8150263 |
COTTER PIN |
| 9 |
23-8537152 |
SPACER |
| 10 |
23-16191 |
SPACER |
| 11 |
23-16336 |
BUSHING |
| 12 |
803710001 |
LINK ROD |
| 13 |
18-8150262 |
COTTER PIN |
| 14 |
12-953925 |
WASHER |
| 15 |
8537451 |
ROD JOINT |
| 16 |
853749001 |
PIN |
| 17 |
11-400212 |
NUT |
| 18 |
803712 |
SHAFT, Throttle |
| 19 |
10-82304227 |
BOLT |
| 20 |
803715 |
BRACKET |
| 21 |
53-160572 |
E RING |
| 22 |
25-16823 |
GROMMET |
| 23 |
23-952869 |
COLLAR |
| 24 |
43-8M0182337 |
GEAR, Pinion |
| 25 |
25-16226 |
GROMMET Comment: (Remote Control) |
| 26 |
13-8537232 |
WAVE WASHER |
| 27 |
160931 |
SHAFT, Throttle |
| 28 |
803709 |
ARM, Advancer |
| 29 |
853748 |
SNAP, Link Rod |
| 30 |
803681006 |
LINK ROD ADVANCER |
| 31 |
11-16081 |
NUT |
| 32 |
10-16123 |
SCREW |
| 33 |
10-16123 |
SCREW |
| 34 |
853744001 |
BALL JOINT |
| 35 |
853745 |
CAP |
| 36 |
23-853743 |
BUSHING |
| 37 |
16-879194297 |
STUD |
| 38 |
12-8M0135942 |
WASHER |
| 39 |
11-95374 |
NUT, (M8) |
| 40 |
8M0051383 |
NUT, Component of 8M0055714 Comment: Design II |
| 41 |
24-8M0051384 |
SPRING, Stainless Steel, Component of 8M0055714 Comment: Design II |
| 42 |
8M0051382 |
CLAMP, Friction - Throttle, Component of 8M0055714 Comment: Design II |
| 43 |
10-8M0204707 |
BOLT, Component of 8M0055714 Comment: Design II |
▶Tools (14 parts)
| Ref |
OEM Part # |
Part Name |
| - |
91-802618 |
TOOL KIT, In-Cowl |
| 1 |
91-8M0059838 |
HOLDER/PULLER TOOL, Flywheel |
| 2 |
91-804764 |
INSTALLER/REMOVER TOOL, Piston Pin |
| 3 |
91-8M0045588 |
SOCKET |
| 4 |
91-85399612 |
WRENCH TOOL |
| 5 |
91-895195A01 |
PULLER KIT, Needle Roller Bearing |
| 6 |
91-8031332 |
FLANGE |
| 7 |
91-8031333 |
SHAFT |
| 8 |
12-1614010 |
WASHER |
| 9 |
11-85372220 |
NUT |
| 10 |
91-8031336 |
FLANGE |
| 11 |
91-8539966 |
TOOL |
| 12 |
91-8539968 |
TOOL |
| 13 |
91-804763 |
SNAP TOOL, Clutch Pin |
▶Ultra Long Extension Components (7 parts)
| Ref |
OEM Part # |
Part Name |
| 1 |
853783T08 |
HOUSING, Extension |
| 2 |
16-879194301 |
STUD |
| 3 |
12-8M0135942 |
WASHER |
| 4 |
11-400213 |
NUT |
| 5 |
45-803738021 |
DRIVESHAFT |
| 6 |
803760019 |
CAM ROD |
| 7 |
32-803755015 |
WATER TUBE |
100-Hour / Annual Service Checklist
Regular maintenance keeps your Mercury 9.9 (2 CYL.) (International) 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.
