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Parts for Force 4 HP (1987) Power Head & Support Plate

#1 F1341 HEX NUT (2 required per assembly)
F1341 - NUT (.250-20) Sta O - Replaced by 11-64015
 

This part has been superseded.

F1341 - F1341 - NUT (.250-20) Sta O [ More info ]
Unavailable
Replaced by 11-64015
NUT (.250-20) 11-64015
 

About Mercury Marine

OEM Part

11-64015 - Nut - Priced Individually [ More info ]

Add to shopping cart $2.00
8 in stock. Explain stock levels

#2 F8083 SPRING LOCKWASHER (2 required per assembly)
F8083 - LOCKWASHER (.250) O - Replaced by 13-26992
 

This part has been superseded.

F8083 - F8083 - LOCKWASHER (.250) O [ More info ]
Unavailable
Replaced by 13-26992
LOCKWASHER (.250) Stain 13-26992
 

About Mercury Marine

OEM Part

13-26992 - LockWasher - Priced Individually [ More info ]

Add to shopping cart $0.80
10+ in stock. Explain stock levels

#3 F901938-1 SCREW, CYLINDER HEAD (4 required per assembly)
SCREW,NLA 10-F901938-1
 

About Mercury Marine

OEM Part

10-F901938-1 - Screw, NLA [ More info ]

Add to shopping cart $1.60
10+ in stock. Explain stock levels

#4 F521774 BRACKET, ENGINE COVER LOWER MOUNTING (1 required per assembly)
F521774 - BRACKET           O - Replaced by -F521774T
 

This part has been superseded.

F521774 - F521774 - BRACKET O [ More info ]
Unavailable
Replaced by -F521774T
BRACKET-LOWER,NLA F521774T
 

About Mercury Marine

OEM Part

F521774T - Bracket - Lower, NLA [ More info ]

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

#5 1705 HEX HD CAPM SCREW, 1/4-20X3/4 (4 required per assembly)
1399-1705 - REPAIR PARTS KIT  O NLA
 

About Mercury Marine

OEM Part

1399-1705 - REPAIR PARTS KIT O NLA [ More info ]
Unavailable
#6 FA521010 CYLINDER W/CRANKCASE COVER, AND ILLUS. 29,30 AND 33 (1 required per assembly)
CYLINDER KIT,NLA FA521010
 

About Mercury Marine

OEM Part

FA521010 - Cylinder Kit, NLA [ More info ]

Add to shopping cart $320.00
3 in stock. Explain stock levels

#- FC521010 LSHORT BLOCK (NOT SHOWN). (1 required per assembly)
800-FC521010 - SHORT BLOCK       O NLA
 

About Mercury Marine

OEM Part

800-FC521010 - SHORT BLOCK O NLA [ More info ]
Unavailable
#7 F521279 GASKET, CYLINDER EXHAUST (1 required per assembly)
27-F521279 - GASKET            O - Replaced by 27-F521279-1
 

This part has been superseded.

27-F521279 - 27-F521279 - GASKET O [ More info ]
Unavailable
Replaced by 27-F521279-1
GASKET,NLA 27-F521279-1
27-F521279-1

About Mercury Marine

OEM Part

27-F521279-1 - Gasket [ More info ]

Add to shopping cart $22.50
10+ in stock. Explain stock levels

#8 F1A26260 PISTON RING SET (2 RINGS) (1 required per assembly)
F1A26260 - RING SET-2-STD    O - Replaced by 39-818038A 1
 

This part has been superseded.

F1A26260 - F1A26260 - RING SET-2-STD O [ More info ]
Unavailable
Replaced by 39-818038A 1
RING SET-2-STD,NLA 39-818038A 1
39-818038A 1

About Mercury Marine

OEM Part

39-818038A 1 - Rings - 2 - Standard, NLA [ More info ]

Add to shopping cart $30.00
10 in stock. Explain stock levels

#9 F250410 PISTON PIN RETAINING RING (2 required per assembly)
RING-RETAINING,NLA 53-F250410
 

About Mercury Marine

OEM Part

53-F250410 - Ring - Retaining, NLA [ More info ]

Add to shopping cart $1.25
10+ in stock. Explain stock levels

#10 F250017 POSTON PIN (1 required per assembly)
PIN-PISTON,NLA 41-F250017
 

About Mercury Marine

OEM Part

41-F250017 - Piston Pin, NLA [ More info ]

Add to shopping cart $9.00
9 in stock. Explain stock levels

#11 F521015-1 PISTON (1 required per assembly)
PISTON,NLA 700-F521015-1
 

About Mercury Marine

OEM Part

700-F521015-1 - Piston, NLA [ More info ]

Add to shopping cart $75.00
3 in stock. Explain stock levels

#12 2A521016 CONNECTING ROD W/BEARING AND ILLUS. 34 (1 required per assembly)
#13 FA567241 CRANKPIN ROLLER & CAGE SET (1 required per assembly)
CAGE/ROLLER ASSY,NLA FA567241
FA567241

About Mercury Marine

OEM Part

FA567241 - Bearing Assembly with Cage and Rollers, NLA [ More info ]

Add to shopping cart $22.00
10+ in stock. Explain stock levels

#14 F1493 PAN HD SCREW, 1/4-20X5/8 (2 required per assembly)
F1493 - SCREW (.250-20 x  O - Replaced by 10-28639
 

This part has been superseded.

F1493 - F1493 - SCREW (.250-20 x O [ More info ]
Unavailable
Replaced by 10-28639
10-28639 - SCREW (250-20 x . O NLA
10-28639

About Mercury Marine

OEM Part

10-28639 - SCREW (250-20 x . O NLA [ More info ]
Unavailable
#15 F521925 LINK, CHOKE KNOB (1 required per assembly)
LINK,NLA F521925
 

About Mercury Marine

OEM Part

F521925 - Choke Knob Link, NLA [ More info ]

Add to shopping cart $7.50
10+ in stock. Explain stock levels

#16 F2041 HEX HD M. SCREW, 10-24X3/8 (1 required per assembly)
SCREW-SS,NLA 10-F2041
 

About Mercury Marine

OEM Part

10-F2041 - Screw -ss, NLA [ More info ]

Add to shopping cart $1.25
10+ in stock. Explain stock levels

#17 F1975 SPRING, LOCKWASHER (1 required per assembly)
13-F1975 - LOCKWASHER (#10)  O - Replaced by 13-26996
 

This part has been superseded.

13-F1975 - 13-F1975 - LOCKWASHER (#10) O [ More info ]
Unavailable
Replaced by 13-26996
LOCKWASHER (#10) Stainl 13-26996
 

About Mercury Marine

OEM Part

13-26996 - LockWasher - Priced Individually [ More info ]

Add to shopping cart $0.90
10+ in stock. Explain stock levels

#18 F535163 COVER, SUPPORT PLATE (1 required per assembly)
F535163 - COVER             O - Replaced by -F665163
 

This part has been superseded.

F535163 - F535163 - COVER O [ More info ]
Unavailable
Replaced by -F665163
COVER,NLA F665163
 

About Mercury Marine

OEM Part

F665163 - Cover, NLA [ More info ]

Add to shopping cart $18.00
10+ in stock. Explain stock levels

#19 F521248 DECAL, CHOKE (1 required per assembly)
F521248 - DECAL             O - Replaced by -FC521248
 

This part has been superseded.

F521248 - F521248 - DECAL O [ More info ]
Unavailable
Replaced by -FC521248
FC521248 - DECAL             O NLA
 

About Mercury Marine

OEM Part

FC521248 - DECAL O NLA [ More info ]
Unavailable
#20 F521547 CHOKE KNOB (1 required per assembly)
KNOB,NLA F521547
 

About Mercury Marine

OEM Part

F521547 - Choke Knob, NLA [ More info ]

Add to shopping cart $16.50
10+ in stock. Explain stock levels

#21 F271038 SUPPORT PLATE (1 required per assembly)
100-F271038 - PLATE-SUPPORT     O - Replaced by 100-FA271038
 

This part has been superseded.

100-F271038 - 100-F271038 - PLATE-SUPPORT O [ More info ]
Unavailable
Replaced by 100-FA271038
100-FA271038 - PLATE ASSEMBLY Su O NLA
 

About Mercury Marine

OEM Part

100-FA271038 - PLATE ASSEMBLY Su O NLA [ More info ]
Unavailable
#22 F521004 STUD (1 required per assembly)
16-F521004 - STUD              O - Replaced by 16-827618
 

This part has been superseded.

16-F521004 - 16-F521004 - STUD O [ More info ]
Unavailable
Replaced by 16-827618
STUD,NLA 16-827618
 

About Mercury Marine

OEM Part

16-827618 - Stud, NLA [ More info ]

Add to shopping cart $10.00
10+ in stock. Explain stock levels

#23 F286286-1 WASHER, NYLON (1 required per assembly)
WASHER-STERN BKT,NLA 12-F286286-1
 

About Mercury Marine

OEM Part

12-F286286-1 - Washer -Stern Bracket, NLA [ More info ]

Add to shopping cart $1.60
10+ in stock. Explain stock levels

#24 F8015 PLAIN WASHER (2 required per assembly)
WASHER,NLA 12-F8015
 

About Mercury Marine

OEM Part

12-F8015 - Washer, NLA [ More info ]

Add to shopping cart $2.50
10+ in stock. Explain stock levels

#25 F521319 BUSHING, STEERING HANDLE (2 required per assembly)
BUSHING,NLA 23-F521319
 

About Mercury Marine

OEM Part

23-F521319 - Bushing, NLA [ More info ]

Add to shopping cart $7.50
10+ in stock. Explain stock levels

#26 F521079 STEERING HANDLE (1 required per assembly)
HANDLE,NLA F521079
 

About Mercury Marine

OEM Part

F521079 - Handle, NLA [ More info ]

Add to shopping cart $20.00
6 in stock. Explain stock levels

#27 F1756 STOP NUT (1 required per assembly)
NUT-SS,NLA 11-F1756
 

About Mercury Marine

OEM Part

11-F1756 - Nut -ss, NLA [ More info ]

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

#28 F390137 GRIP, STEERING HANDLE (1 required per assembly)
GRIP,NLA F390137
 

About Mercury Marine

OEM Part

F390137 - Grip, NLA [ More info ]

Add to shopping cart $10.00
10+ in stock. Explain stock levels

#29 F1789 PIPE PLUG (1 required per assembly)
PLUG-PIPE,NLA 22-F1789
 

About Mercury Marine

OEM Part

22-F1789 - Pipe Plug, NLA [ More info ]

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

#30 F1107 FILL HD M. SCREW, 1/4-20X3/4 (2 required per assembly)
SCREW (.250-20 x .750) 10-F1107
10-F1107

About Mercury Marine

OEM Part

10-F1107 - Screw [ More info ]

Add to shopping cart $1.10
2 in stock. Explain stock levels

#31 F2040 HEX WASHER HD TAPTITE SCREW, 1/4-20X5/8 (1 required per assembly)
SCREW-SS,NLA 10-F2040
 

About Mercury Marine

OEM Part

10-F2040 - Screw -ss, NLA [ More info ]

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

#32 F1504 SLOTTED FILL HD SCREW, 1/4-20X1/4 (4 required per assembly)
SCREW (.250-20 x 1.250) 10-F1504
10-F1504

About Mercury Marine

OEM Part

10-F1504 - Screw -ss [ More info ]

Add to shopping cart $2.00
Available to order: Usually ships within 8 days. Explain stock levels

#33 F8559 DOWEL PIN (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

#34 36634 SCREW, CONNECTING ROD (2 required per assembly)
12-36634 - NLA               O NLA
 

About Mercury Marine

OEM Part

12-36634 - NLA O NLA [ More info ]
Unavailable
#35 F521579 SEAL, CRANKSHAFT SPLINE (1 required per assembly)
O RING,NLA 25-F521579
 

About Mercury Marine

OEM Part

25-F521579 - O-Ring [ More info ]

Add to shopping cart $3.00
10+ in stock. Explain stock levels

#36 F521118-1 SEAL, CRANKSHAFT LOWER (1 required per assembly)
F521118-1 - SEAL              O - Replaced by 26-819798
 

This part has been superseded.

F521118-1 - F521118-1 - SEAL O [ More info ]
Unavailable
Replaced by 26-819798
SEAL,NLA 26-819798
26-819798

About Mercury Marine

OEM Part

26-819798 - Seal, NLA [ More info ]

Add to shopping cart $15.00
10+ in stock. Explain stock levels

#37 2A527018 CRANKSHAFT W/ILLUS. 45 AND 46 (1 required per assembly)
#38 F521013 BEARING, CRANKSHAFT UPPER (1 required per assembly)
BEARING-ROLLER,NLA 31-F521013
 

About Mercury Marine

OEM Part

31-F521013 - Roller Bearing, NLA [ More info ]

Add to shopping cart $16.00
10+ in stock. Explain stock levels

#39 F521146 SEAL, CRANKSHAFT UPPER (1 required per assembly)
F5211461 F521146
 

About Mercury Marine

OEM Part

F521146 - F5211461 [ More info ]

Add to shopping cart $7.75
2 in stock. Explain stock levels

F521146-1 - SEAL              O - Replaced by 26-819799
 

This part has been superseded.

F521146-1 - F521146-1 - SEAL O [ More info ]
Unavailable
Replaced by 26-819799
SEAL,NLA 26-819799
 

About Mercury Marine

OEM Part

26-819799 - Seal, NLA [ More info ]

Add to shopping cart $32.00
10+ in stock. Explain stock levels

#40 F521529 GASKET, CYLINDER HEAD (1 required per assembly)
F521529 - GASKET            O - Replaced by 27-F712529
 

This part has been superseded.

F521529 - F521529 - GASKET O [ More info ]
Unavailable
Replaced by 27-F712529
GASKET 27-F712529
27-F712529

About Mercury Marine

OEM Part

27-F712529 - Gasket [ More info ]

Add to shopping cart $20.17
1 in stock. Explain stock levels

#41 F521518 CYLINDER HEAD (1 required per assembly)
900-F521518 - CYLINDER HEAD     O NLA
 

About Mercury Marine

OEM Part

900-F521518 - CYLINDER HEAD O NLA [ More info ]
Unavailable
#42 FS521227 SPARK PLUG (L-86)(USA) (1 required per assembly)
FS521227 - SPARK PLUG-L86C   O - Replaced by 33-818013  1
 

This part has been superseded.

FS521227 - FS521227 - SPARK PLUG-L86C O [ More info ]
Unavailable
Replaced by 33-818013 1
33-818013  1 - SPARK PLUG-L86C   O - Replaced by 33-306
 

This part has been superseded.

33-818013 1 - 33-818013 1 - SPARK PLUG-L86C O [ More info ]
Unavailable
Replaced by 33-306
33-306 - SP #L86C @8       O - Replaced by 33-896329306
 

This part has been superseded.

33-306 - 33-306 - SP #L86C @8 O [ More info ]
Unavailable
Replaced by 33-896329306
SP #L86C Note: must be ordered in multiples of 4 33-896329306
33-896329306

About Mercury Marine

OEM Part

33-896329306 - Spark Plug - L86C - Priced Individually [ More info ]

Add to shopping cart $5.10
Available to order: Usually ships within 8 days. Explain stock levels

NGK B6HS/7534 SPARK PLUG (4)
B6HS

About NGK Spark Plugs

OEM Match

B6HS - NGK Spark Plug B6HS, BRP 509567 [ More info ]

Add to shopping cart $2.65
4 in stock. Explain stock levels

SPARK PLUG CHAMPION L86C
L86C

About Champion Spark Plugs

OEM Match

L86C - Champion Spark Plug ( #306) [ More info ]

Add to shopping cart $2.41
10+ in stock. Explain stock levels

#- SPARK PLUG (RL-86)CANADA ONLY (ORDER LOCALLY) (1 required per assembly)
#43 F8028 PLAIN WASHER (2 required per assembly)
F8028 - WASHER Plain      O - Replaced by 12-F8008
 

This part has been superseded.

F8028 - F8028 - WASHER Plain O [ More info ]
Unavailable
Replaced by 12-F8008
1235044 12-F8008
 

About Mercury Marine

OEM Part

12-F8008 - Washer [ More info ]

Add to shopping cart $0.25
2 in stock. Explain stock levels

WASHER (.281 x .625 x . 12-35044
 

About Mercury Marine

OEM Part

12-35044 - Washer [ More info ]

Add to shopping cart $1.70
Available to order: Usually ships within 8 days. Explain stock levels

#44 F1426 HEX HD SCREW W/LOCKWASHER, 1/4-20X7/16 (2 required per assembly)
10-F1426 - SCREW AND LOCKWAS O NLA
 

About Mercury Marine

OEM Part

10-F1426 - SCREW AND LOCKWAS O NLA [ More info ]
Unavailable
#45 F521270 SLINGER (1 required per assembly)
SLINGER,NLA F521270
 

About Mercury Marine

OEM Part

F521270 - Slinger, NLA [ More info ]

Add to shopping cart $2.50
10+ in stock. Explain stock levels

#46 F521910 BEARING, CRANKSHAFT LOWER (1 required per assembly)
BEARING-BALL,NLA 30-F521910
 

About Mercury Marine

OEM Part

30-F521910 - Ball Bearing, NLA [ More info ]

Add to shopping cart $40.00
10+ in stock. Explain stock levels

#47 F8008 PLAIN WASHER (2 required per assembly)
#48 F341284-1 KNOB,ENGINE COVER RETAINER (1 required per assembly)
KNOB,NLA F341284-1
 

About Mercury Marine

OEM Part

F341284-1 - Knob, NLA [ More info ]

Add to shopping cart $23.50
10+ in stock. Explain stock levels

#49 F9102 R3ETAINING RING (1 required per assembly)
F9102 - RING Retaining    O - Replaced by 53-F455208
 

This part has been superseded.

F9102 - F9102 - RING Retaining O [ More info ]
Unavailable
Replaced by 53-F455208
RING 53-F455208
 

About Mercury Marine

OEM Part

53-F455208 - Ring - Retaining [ More info ]

Add to shopping cart $1.65
2 in stock. Explain stock levels

#50 F1022 GASKET SET. INCLUDES ITEMS LISTED BELOW. (1 required per assembly)
18-F1022 - PIN-COTTER        O - Replaced by 18-45882
 

This part has been superseded.

18-F1022 - 18-F1022 - PIN-COTTER O [ More info ]
Unavailable
Replaced by 18-45882
COTTER PIN Note: must be ordered in multiples of 2 18-45882
18-45882

About Mercury Marine

OEM Part

18-45882 - Cotter Pin - Priced Individually [ More info ]

Add to shopping cart $2.09
10 in stock. Explain stock levels

#- F521168 CARBURETOR ADAPTER GASKET (1 required per assembly)
GASKET,NLA 27-F521168
 

About Mercury Marine

OEM Part

27-F521168 - Gasket, NLA [ More info ]

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

#- F521906 CARBURETOR GASKET (1 required per assembly)
GASKET 27-F521906
27-F521906

About Mercury Marine

OEM Part

27-F521906 - Gasket [ More info ]

Add to shopping cart $1.80
1 in stock. Explain stock levels