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

Revise Search: All Models > 50 HP (1991) > 507F91B ( ) > Cylinder Block, Head & Exhaust Chest Cover

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View diagram and parts list below.
Each product listed is an OEM or aftermarket equivalent part. [ Example ]

Engine section

Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
Each product listed is an OEM or aftermarket equivalent part. [ Example ]

#1	FA718010	CYLINDER W/CRANKCASE COVER AND DEFLECTOR PLATE (1 required per assembly)
		800-FA718010 - 800-FA718010 - CYLINDER ASSY O [ More info ] Unavailable Replaced by -FC718010
		FC718010 - FC718010 - SHORT BLOCK O [ More info ] Unavailable Replaced by 800-818152A 7
		800-818152A 7 - 800-818152A 7 - POWERHEAD ASSY-50 O [ More info ] Unavailable Replaced by 800-818152A15
		800-818152A15 - 800-818152A15 - POWERHEAD ASSY O [ More info ] Unavailable Replaced by 800-818152A17
		800-818152A17 - 800-818152A17 - POWERHEAD ASSY O [ More info ] Unavailable Replaced by 800-818152A19
		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)
		27-F691154 - Gasket [ More info ] $17.00 $14.56 6 in stock.
#3	F691151	PLATE, EXHAUST PORT (1 required per assembly)
		F691151 - F691151 - PLATE-EXHAUST O [ More info ] Unavailable Replaced by -F691151-1
		F691151-1 - F691151-1 - PLATE-EXHAUST O [ More info ] Unavailable Replaced by -819913 4
		819913 4 - Exhaust Plate, NLA [ More info ] $94.00 5 in stock.
#4	F691152	COVER EXHAUST PORT (1 required per assembly)
		F691152 - F691152 - COVER-EXHAUST O [ More info ] Unavailable Replaced by 1000-819269
		1000-819269 - 1000-819269 - COVER-EXHAUST O [ More info ] Unavailable Replaced by 1000-819269 1
		1000-819269 1 - Exhaust Cover, NLA [ More info ] $37.50 10+ in stock.
#5	F1972	SCREW, EXHAUST PORT, 1/4 - 20 X 2-1/2 HEX HD. (15 required per assembly)
		10-F1972 - Screw -ss, NLA [ More info ] $2.50 6 in stock.
#6	1238	SCREW, 1/4 - 20 X 3/4 (2 required per assembly)
		164-1238 - COVER O NLA [ More info ] Unavailable
#7	F184122-1	SEAL, CRANKCASE PARTING LINE (1 required per assembly)
		F184122-1 - Seal - Red, NLA [ More info ] $15.00 7 in stock.
#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 [ 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)
		21-F463314 - Check Valve, NLA [ More info ] $11.50 10+ in stock.
#11	F1922	SCREW, CRANKCASE TO CYLINDER, 1/4 - 20 X 5/8 (3 required per assembly)
		10-F1922 - Screw, NLA [ More info ] $1.35 3 in stock.
#12	1864	SCREW, CRANKCASE TO CYLINDER, 1/4 - 20 X 3/4 (9 required per assembly)
		1399-1864 - Jet (.43), NLA [ More info ] $5.50 10+ in stock.
#13	F691529	GASKET, CYLINDER HEAD (1 required per assembly)
		F691529 - F691529 - GASKET O [ More info ] Unavailable Replaced by 27-F691529-1
		27-F691529-1 - Gasket [ More info ] $36.08 Available to order: Usually ships within 8 days.
		18-3853 - Gasket 27-F691529-1 [ More info ] $30.99 $24.67 10 in stock.
#14	F691518	HEAD, CYLINDER (1 required per assembly)
		F691518 - F691518 - HEAD-CYLINDER O [ More info ] Unavailable Replaced by 900-F691518-1
		900-F691518-1 - Cylinder Head [ More info ] $225.92 1 in stock.
#15	F691995	COVER, CYLINDER HEAD (1 required per assembly)
		1000-F691995 - COVER-CYL HEAD O NLA [ More info ] Unavailable
#16	F1987	WASHER, CYLINDER HEAD BOLTS (10 required per assembly)
		F1987 - F1987 - WASHER O [ More info ] Unavailable Replaced by 12-34437
		12-34437 - Washer - Priced Individually [ More info ] $2.10 Available to order: Usually ships within 8 days.
#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 [ More info ] Unavailable
#18	F658449-1	THERMOSWITCH W/WIRE (1 required per assembly)
		F658449-1 - F658449-1 - THERMOSWITCH O [ More info ] Unavailable Replaced by 87-F658449-2
		87-F658449-2 - ThermoSwitch [ More info ] $59.50 2 in stock.
#19	F428096	RETAINING RING (1 required per assembly)
		53-F428096 - Retainer [ More info ] $0.90 2 in stock.
#20	F1502	SCREW, CYLINDER HEAD COVER TO CYLINDER HEAD (2 required per assembly)
		F1502 - F1502 - SCREW (.250-20 x O [ More info ] Unavailable Replaced by 10-98254
		10-98254 - Screw [ More info ] $0.40 1 in stock.
#21	F467227-1	SPARK PLUG, UL-18V (2 required per assembly)
		F467227-1 - F467227-1 - SPARK PLUG-UL18V O [ More info ] Unavailable Replaced by 33-818007 1
		33-818007 1 - 33-818007 1 - SPARK PLUG O [ More info ] Unavailable Replaced by 33-824
		33-824 - 33-824 - SP #UL18V @8 O [ More info ] Unavailable Replaced by 33-896329824
		33-896329824 - SP #UL18V @4 O [ More info ] Unavailable
		BUHX - NGK Spark Plug, 2522 [ More info ] $3.32 10+ in stock.
		UL18V - Champion Spark Plug ( #824) [ More info ] $3.35 10+ in stock.
#22	F658504	WASHER, THERMOSTAT (1 required per assembly)
		12-F658504 - Washer [ More info ] $5.00 10+ in stock.
#23	F97068-2	THERMOSTAT (1 required per assembly)
		F97068-2 - F97068-2 - THERMOSTAT 54C (1 O [ More info ] Unavailable Replaced by -895338
		895338 - Thermostat [ More info ] $32.75 Available to order: Usually ships within 8 days.
		18-3556 - Thermostat F97068-2 [ More info ] $22.99 $18.81 10+ in stock.
#24	F658268	SPRING, THERMOSTAT (1 required per assembly)
		24-F658268 - SPRING O NLA [ More info ] Unavailable
#25	F97067	GASKET, THERMOSTAT COVER (1 required per assembly)
		27-F97067 - Gasket [ More info ] $0.36 5 in stock.
		27-819377 - Gasket [ More info ] $1.80 9 in stock.
		18-0873-9 - Gasket 27-819377 2-Pack [ More info ] $4.98 $4.90 7 in stock.
#26	F658066	COVER, THERMOSTAT (1 required per assembly)
		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 [ More info ] Unavailable
#28	F658418	TUBE, COOLING SYSTEM (1 required per assembly)
		32-F658418 - Tube - Cooling, NLA [ More info ] $5.00 10+ in stock.
#29	F19109	PLUG (1 required per assembly)
		F19109 - Plug - (1/8-27 NPT) [ More info ] $1.00 9 in stock.
		22-47945 - PLUG O NLA [ More info ] Unavailable
#30	F8559	PIN, DOWEL (2 required per assembly)
		17-F8559 - Pin -Dowel [ More info ] $1.90 10 in stock.
#31	F8096	LOCKWASHER, SPRING (1 required per assembly)
		F8096 - F8096 - LOCKWASHER (.312) O [ More info ] Unavailable Replaced by 13-53166
		13-53166 - LockWasher - Priced Individually [ More info ] $1.40 10+ in stock.
#32	F1857	SCREW, HEX CAP, 5/16 - 18 5/8 (1 required per assembly)
		10-F1857 - Screw SS [ More info ] $0.60 4 in stock.
		10-90285 - Screw [ More info ] $1.40 Available to order: Usually ships within 8 days.
#33	1033	GASKET SET (1 required per assembly)
		398-1033 - NLA O NLA [ More info ] Unavailable
#34	F40909	PIN, LOCATING (1 required per assembly)
		17-F40909 - Locating Pin, NLA [ More info ] $2.00 10+ in stock.
#36	F691153	GASKET, EXHAUST PORT COVER (1 required per assembly)
		27-F691153 - Gasket [ More info ] $9.80 3 in stock.
#37	F685387-2	DECAL, US MARINE (1 required per assembly)
		37-F685387-2 - Decal - (Blue), NLA [ More info ] $3.00 2 in stock.
#38	F307942-2	BUMPER (2 required per assembly)
		F307942-2 - Bushing, NLA [ More info ] $1.50 10+ in stock.