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Parts for Force 50 HP (1991) Cylinder Block, Head & Exhaust Chest Cover

#1 FA718010 CYLINDER W/CRANKCASE COVER AND DEFLECTOR PLATE (1 required per assembly)
800-FA718010 - CYLINDER ASSY     O - Replaced by -FC718010
 

This part has been superseded.

800-FA718010 - 800-FA718010 - CYLINDER ASSY O [ More info ]
Unavailable
Replaced by -FC718010
FC718010 - SHORT BLOCK       O - Replaced by 800-818152A 7
 

This part has been superseded.

FC718010 - FC718010 - SHORT BLOCK O [ More info ]
Unavailable
Replaced by 800-818152A 7
800-818152A 7 - POWERHEAD ASSY-50 O - Replaced by 800-818152A15
 

This part has been superseded.

800-818152A 7 - 800-818152A 7 - POWERHEAD ASSY-50 O [ More info ]
Unavailable
Replaced by 800-818152A15
800-818152A15 - POWERHEAD ASSY    O - Replaced by 800-818152A17
 

This part has been superseded.

800-818152A15 - 800-818152A15 - POWERHEAD ASSY O [ More info ]
Unavailable
Replaced by 800-818152A17
800-818152A17 - POWERHEAD ASSY    O - Replaced by 800-818152A19
 

This part has been superseded.

800-818152A17 - 800-818152A17 - POWERHEAD ASSY O [ More info ]
Unavailable
Replaced by 800-818152A19
800-818152A19 - POWERHEAD KIT     O NLA
 

About Mercury Marine

OEM Part

800-818152A19 - POWERHEAD KIT O NLA [ More info ]
Unavailable
#- C718010 SHORT BLOCK, CONTAINS CYLINDER, CRANKSHAFT, PISTONS & PINS (1 required per assembly)
#2 F691154 GASKET, EXHAUST PORT PLATE (2 required per assembly)
GASKET 27-F691154
27-F691154

About Mercury Marine

OEM Part

27-F691154 - Gasket [ More info ]

Add to shopping cart $16.20 $13.88
2 in stock. Explain stock levels

#3 F691151 PLATE, EXHAUST PORT (1 required per assembly)
F691151 - PLATE-EXHAUST     O - Replaced by -F691151-1
 

This part has been superseded.

F691151 - F691151 - PLATE-EXHAUST O [ More info ]
Unavailable
Replaced by -F691151-1
F691151-1 - PLATE-EXHAUST     O - Replaced by -819913  4
 

This part has been superseded.

F691151-1 - F691151-1 - PLATE-EXHAUST O [ More info ]
Unavailable
Replaced by -819913 4
PLATE-EXHAUST,NLA 819913  4
 

About Mercury Marine

OEM Part

819913 4 - Exhaust Plate, NLA [ More info ]

Add to shopping cart $94.00
5 in stock. Explain stock levels

#4 F691152 COVER EXHAUST PORT (1 required per assembly)
F691152 - COVER-EXHAUST     O - Replaced by 1000-819269
 

This part has been superseded.

F691152 - F691152 - COVER-EXHAUST O [ More info ]
Unavailable
Replaced by 1000-819269
1000-819269 - COVER-EXHAUST     O - Replaced by 1000-819269  1
 

This part has been superseded.

1000-819269 - 1000-819269 - COVER-EXHAUST O [ More info ]
Unavailable
Replaced by 1000-819269 1
COVER-EXHAUST,NLA 1000-819269  1
 

About Mercury Marine

OEM Part

1000-819269 1 - Exhaust Cover, NLA [ More info ]

Add to shopping cart $37.50
10+ in stock. Explain stock levels

#5 F1972 SCREW, EXHAUST PORT, 1/4 - 20 X 2-1/2 HEX HD. (15 required per assembly)
SCREW-SS,NLA 10-F1972
 

About Mercury Marine

OEM Part

10-F1972 - Screw -ss, NLA [ More info ]

Add to shopping cart $2.50
6 in stock. Explain stock levels

#6 1238 SCREW, 1/4 - 20 X 3/4 (2 required per assembly)
164-1238 - COVER             O NLA
 

About Mercury Marine

OEM Part

164-1238 - COVER O NLA [ More info ]
Unavailable
#7 F184122-1 SEAL, CRANKCASE PARTING LINE (1 required per assembly)
SEAL-(RED)      ,NLA F184122-1
F184122-1

About Mercury Marine

OEM Part

F184122-1 - Seal - Red, NLA [ More info ]

Add to shopping cart $15.00
6 in stock. Explain stock levels

#8 2228 SCREW, CRANKCASE COVER TO CYLINDER 3/8 - 16 X 3 AT UPPER MAI (2 required per assembly)
1399-2228 - REPAIR PARTS KIT  O NLA
 

About Mercury Marine

OEM Part

1399-2228 - REPAIR PARTS KIT O NLA [ More info ]
Unavailable
#9 2246 SCREW, CRANKCASE COVER TO CYLINDER 3/8 - 16 X 1-5/8 AT CENTE (4 required per assembly)
#10 F463314 ELBOW, CHECK VALVE (1 required per assembly)
CHECK VALVE,NLA 21-F463314
 

About Mercury Marine

OEM Part

21-F463314 - Check Valve, NLA [ More info ]

Add to shopping cart $11.50
10+ in stock. Explain stock levels

#11 F1922 SCREW, CRANKCASE TO CYLINDER, 1/4 - 20 X 5/8 (3 required per assembly)
SCREW,NLA 10-F1922
 

About Mercury Marine

OEM Part

10-F1922 - Screw, NLA [ More info ]

Add to shopping cart $1.35
7 in stock. Explain stock levels

#12 1864 SCREW, CRANKCASE TO CYLINDER, 1/4 - 20 X 3/4 (9 required per assembly)
JET (.43),NLA 1399-1864
 

About Mercury Marine

OEM Part

1399-1864 - Jet (.43), NLA [ More info ]

Add to shopping cart $5.50
10+ in stock. Explain stock levels

#13 F691529 GASKET, CYLINDER HEAD (1 required per assembly)
F691529 - GASKET            O - Replaced by 27-F691529-1
F691529

This part has been superseded.

F691529 - F691529 - GASKET O [ More info ]
Unavailable
Replaced by 27-F691529-1
GASKET 27-F691529-1
27-F691529-1

About Mercury Marine

OEM Part

27-F691529-1 - Gasket [ More info ]

Add to shopping cart $34.08
Available to order: Usually ships within 8 days. Explain stock levels

Head Gasket
18-3853

About Sierra Marine

OEM Match

18-3853 - Gasket 27-F691529-1 [ More info ]

Add to shopping cart $30.99 $25.72
8 in stock. Explain stock levels

#14 F691518 HEAD, CYLINDER (1 required per assembly)
F691518 - HEAD-CYLINDER     O - Replaced by 900-F691518-1
 

This part has been superseded.

F691518 - F691518 - HEAD-CYLINDER O [ More info ]
Unavailable
Replaced by 900-F691518-1
HEAD-CYLINDER 900-F691518-1
 

About Mercury Marine

OEM Part

900-F691518-1 - Cylinder Head [ More info ]

Add to shopping cart $225.92
Available to order: Usually ships within 8 days. Explain stock levels

#15 F691995 COVER, CYLINDER HEAD (1 required per assembly)
1000-F691995 - COVER-CYL HEAD    O NLA
 

About Mercury Marine

OEM Part

1000-F691995 - COVER-CYL HEAD O NLA [ More info ]
Unavailable
#16 F1987 WASHER, CYLINDER HEAD BOLTS (10 required per assembly)
F1987 - WASHER            O - Replaced by 12-34437
 

This part has been superseded.

F1987 - F1987 - WASHER O [ More info ]
Unavailable
Replaced by 12-34437
WASHER Note: must be ordered in multiples of 2 12-34437
 

About Mercury Marine

OEM Part

12-34437 - Washer - Priced Individually [ More info ]

Add to shopping cart $2.00
10+ in stock. Explain stock levels

#17 2254 SCREW, CYLINDER HEAD AND COVER TO CYLINDER 5/16 - 18 X 2-1/2 (10 required per assembly)
1397-2254 - NLA               O NLA
 

About Mercury Marine

OEM Part

1397-2254 - NLA O NLA [ More info ]
Unavailable
#18 F658449-1 THERMOSWITCH W/WIRE (1 required per assembly)
F658449-1 - THERMOSWITCH      O - Replaced by 87-F658449-2
 

This part has been superseded.

F658449-1 - F658449-1 - THERMOSWITCH O [ More info ]
Unavailable
Replaced by 87-F658449-2
THERMOSWITCH 87-F658449-2
87-F658449-2

About Mercury Marine

OEM Part

87-F658449-2 - ThermoSwitch [ More info ]

Add to shopping cart $56.16
2 in stock. Explain stock levels

#19 F428096 RETAINING RING (1 required per assembly)
RING Retaining 53-F428096
 

About Mercury Marine

OEM Part

53-F428096 - Retainer [ More info ]

Add to shopping cart $0.90
Available to order: Usually ships within 8 days. Explain stock levels

#20 F1502 SCREW, CYLINDER HEAD COVER TO CYLINDER HEAD (2 required per assembly)
F1502 - SCREW (.250-20 x  O - Replaced by 10-98254
 

This part has been superseded.

F1502 - F1502 - SCREW (.250-20 x O [ More info ]
Unavailable
Replaced by 10-98254
SCREW (.250-20 x .620) 10-98254
10-98254

About Mercury Marine

OEM Part

10-98254 - Screw [ More info ]

Add to shopping cart $0.40
1 in stock. Explain stock levels

#21 F467227-1 SPARK PLUG, UL-18V (2 required per assembly)
F467227-1 - SPARK PLUG-UL18V  O - Replaced by 33-818007  1
 

This part has been superseded.

F467227-1 - F467227-1 - SPARK PLUG-UL18V O [ More info ]
Unavailable
Replaced by 33-818007 1
33-818007  1 - SPARK PLUG        O - Replaced by 33-824
 

This part has been superseded.

33-818007 1 - 33-818007 1 - SPARK PLUG O [ More info ]
Unavailable
Replaced by 33-824
33-824 - SP #UL18V @8      O - Replaced by 33-896329824
 

This part has been superseded.

33-824 - 33-824 - SP #UL18V @8 O [ More info ]
Unavailable
Replaced by 33-896329824
SP #UL18V Note: must be ordered in multiples of 4 33-896329824
33-896329824

About Mercury Marine

OEM Part

33-896329824 - Spark Plug - UL18V Note: - Priced Individually [ More info ]

Add to shopping cart $6.00
Available to order: Usually ships within 8 days. Explain stock levels

NGK BUHX/2522 SPARK PLUG (10)
BUHX

About NGK Spark Plugs

OEM Match

BUHX - NGK Spark Plug, 2522 [ More info ]

Add to shopping cart $3.32
10+ in stock. Explain stock levels

SPARK PLUG CHAMPION UL18V
UL18V

About Champion Spark Plugs

OEM Match

UL18V - Champion Spark Plug ( #824) [ More info ]

Add to shopping cart $3.35
10+ in stock. Explain stock levels

#22 F658504 WASHER, THERMOSTAT (1 required per assembly)
WASHER 12-F658504
12-F658504

About Mercury Marine

OEM Part

12-F658504 - Washer [ More info ]

Add to shopping cart $4.70
10 in stock. Explain stock levels

#23 F97068-2 THERMOSTAT (1 required per assembly)
895338 F97068-2
F97068-2

About Mercury Marine

OEM Part

F97068-2 - THERMOSTAT-130 [ More info ]

Add to shopping cart $15.99
4 in stock. Explain stock levels

THERMOSTAT 62°C (143° 895338
895338

About Mercury Marine

OEM Part

895338 - Thermostat [ More info ]

Add to shopping cart $23.16
Available to order: Usually ships within 8 days. Explain stock levels

Thermostat (130)
18-3556

About Sierra Marine

OEM Match

18-3556 - Thermostat F97068-2 [ More info ]

Add to shopping cart $22.99 $19.60
8 in stock. Explain stock levels

#24 F658268 SPRING, THERMOSTAT (1 required per assembly)
24-F658268 - SPRING            O NLA
 

About Mercury Marine

OEM Part

24-F658268 - SPRING O NLA [ More info ]
Unavailable
#25 F97067 GASKET, THERMOSTAT COVER (1 required per assembly)
27-F97067 - GASKET            O - Replaced by 27-819377
 

This part has been superseded.

27-F97067 - 27-F97067 - GASKET O [ More info ]
Unavailable
Replaced by 27-819377
GASKET 27-819377
27-819377

About Mercury Marine

OEM Part

27-819377 - Gasket [ More info ]

Add to shopping cart $1.80
10+ in stock. Explain stock levels

Gasket
18-0873

About Sierra Marine

OEM Match

18-0873-9 - Gasket 27-819377 2-Pack [ More info ]

Add to shopping cart $4.98
Available to order: Usually ships within 8 days. Explain stock levels

#26 F658066 COVER, THERMOSTAT (1 required per assembly)
F658066 - COVER-THERMOSTAT  O NLA
 

About Mercury Marine

OEM Part

F658066 - COVER-THERMOSTAT O NLA [ More info ]
Unavailable
#27 1995 SCREW, THERMOSTAT COVER TO CYLINDER HEAD # 10 - 24 X 1 (3 required per assembly)
394-1995 - ROTOR             O NLA
 

About Mercury Marine

OEM Part

394-1995 - ROTOR O NLA [ More info ]
Unavailable
#28 F658418 TUBE, COOLING SYSTEM (1 required per assembly)
TUBE-COOLING,NLA 32-F658418
 

About Mercury Marine

OEM Part

32-F658418 - Tube - Cooling, NLA [ More info ]

Add to shopping cart $5.00
10+ in stock. Explain stock levels

#29 F19109 PLUG (1 required per assembly)
2247945 F19109
 

About Mercury Marine

OEM Part

F19109 - Plug - (1/8-27 NPT) [ More info ]

Add to shopping cart $1.00
1 in stock. Explain stock levels

PLUG 22-47945
22-47945

About Mercury Marine

OEM Part

22-47945 - Pipe Plug [ More info ]

Add to shopping cart $1.60
3 in stock. Explain stock levels

#30 F8559 PIN, DOWEL (2 required per assembly)
PIN 17-F8559
 

About Mercury Marine

OEM Part

17-F8559 - Pin -Dowel [ More info ]

Add to shopping cart $1.90
6 in stock. Explain stock levels

#31 F8096 LOCKWASHER, SPRING (1 required per assembly)
F8096 - LOCKWASHER (.312) O - Replaced by 13-53166
 

This part has been superseded.

F8096 - F8096 - LOCKWASHER (.312) O [ More info ]
Unavailable
Replaced by 13-53166
LOCKWASHER (.312) 13-53166
 

About Mercury Marine

OEM Part

13-53166 - LockWasher - Priced Individually [ More info ]

Add to shopping cart $1.40
10+ in stock. Explain stock levels

#32 F1857 SCREW, HEX CAP, 5/16 - 18 5/8 (1 required per assembly)
1090285 10-F1857
 

About Mercury Marine

OEM Part

10-F1857 - Screw SS [ More info ]

Add to shopping cart $0.60
4 in stock. Explain stock levels

SCREW (.312-18 x .625) 10-90285
10-90285

About Mercury Marine

OEM Part

10-90285 - Screw [ More info ]

Add to shopping cart $1.40
Available to order: Usually ships within 8 days. Explain stock levels

#33 1033 GASKET SET (1 required per assembly)
398-1033 - NLA               O NLA
 

About Mercury Marine

OEM Part

398-1033 - NLA O NLA [ More info ]
Unavailable
#34 F40909 PIN, LOCATING (1 required per assembly)
PIN-LOCATING,NLA 17-F40909
 

About Mercury Marine

OEM Part

17-F40909 - Locating Pin, NLA [ More info ]

Add to shopping cart $2.00
10+ in stock. Explain stock levels

#36 F691153 GASKET, EXHAUST PORT COVER (1 required per assembly)
GASKET 27-F691153
27-F691153

About Mercury Marine

OEM Part

27-F691153 - Gasket [ More info ]

Add to shopping cart $9.40
1 in stock. Explain stock levels

#37 F685387-2 DECAL, US MARINE (1 required per assembly)
DECAL-(BLUE),NLA 37-F685387-2
 

About Mercury Marine

OEM Part

37-F685387-2 - Decal - (Blue), NLA [ More info ]

Add to shopping cart $3.00
2 in stock. Explain stock levels

#38 F307942-2 BUMPER (2 required per assembly)
BUSHING,NLA F307942-2
 

About Mercury Marine

OEM Part

F307942-2 - Bushing, NLA [ More info ]

Add to shopping cart $1.50
10+ in stock. Explain stock levels