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Parts for Force 4 HP (1985) Power Head & Support Plate

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

About Mercury Marine

OEM Part

27-F521906 - Carburetor Gasket [ More info ]

Add to shopping cart $2.59
9 In Stock.

# FC521010 SHORT BLOCK (NOT SHOWN). (1 required per assembly) INCLUDES ALL ITEMS MARKED WITH AN ASTERISK (*).
800-FC521010 - SHORT BLOCK        NLA
800-FC521010

About Mercury Marine

OEM Part

800-FC521010 - Short Block, NLA [ More info ]
Unavailable
# F521168 CARBURETOR ADAPTER GASKET (1 required per assembly)
GASKET,NLA 27-F521168
27-F521168

About Mercury Marine

OEM Part

27-F521168 - Carburetor Adapter Gasket [ More info ]

Add to shopping cart $2.99 $2.53
7 In Stock.

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

F1341 - Hex Nut 1/4 - 20 [ More info ]
Unavailable
NUT 11-64015
11-64015

About Mercury Marine

OEM Part

11-64015 - Nut (1 /4-20) [ More info ]

Add to shopping cart $2.79
10+ In Stock.

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

F8083 - LockWasher SS [ More info ]
Unavailable
LOCKWASHER 13-26992
13-26992

About Mercury Marine

OEM Part

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

Add to shopping cart $1.20
10+ In Stock.

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

About Mercury Marine

OEM Part

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

Add to shopping cart $2.06
10+ In Stock.

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

F521774 - Bracket - Lower [ More info ]
Unavailable
BRACKET-LOWER,NLA F521774T
F521774T

About Mercury Marine

OEM Part

F521774T - Bracket - Lower, NLA [ More info ]

Add to shopping cart $2.22 $1.88
10+ In Stock.

#5 F1705 HEX HD CAP SCREW, 1/4 - 20 X 3/4 (4 required per assembly)
F1705 - SCREW (.250-20 x   - Replaced by 10-28636
F1705

F1705 - Screw - Priced Individually [ More info ]
Unavailable
SCREW 10-28636
10-28636

About Mercury Marine

OEM Part

10-28636 - Screw - Priced Individually [ More info ]

Add to shopping cart $1.80
10+ In Stock.

#6 FA521010 CYLINDER W/CRANKCASE COVER (1 required per assembly) ILLUS. 29, 30 AND 33
CYLINDER KIT,NLA FA521010
FA521010

About Mercury Marine

OEM Part

FA521010 - Cylinder Kit, NLA [ More info ]

Add to shopping cart $79.99 $67.74
1 In Stock.

#7 F521279 GASKET, CYLINDER EXHAUST (1 required per assembly)
27-F521279 - GASKET             - Replaced by 27-F521279-1
27-F521279

27-F521279 - 27F5212791 [ More info ]
Unavailable
GASKET,NLA 27-F521279-1
27-F521279-1

About Mercury Marine

OEM Part

27-F521279-1 - Cylinder Exhaust Gasket [ More info ]

Add to shopping cart $15.08
9 In Stock.

#8 39-818038A 1 PISTON RING SET (2 RINGS) (1 required per assembly)
39-818038A 1 - RING SET Piston    NLA
39-818038A 1

About Mercury Marine

OEM Part

39-818038A 1 - Rings - 2 - Standard, NLA [ More info ]
Unavailable
#9 F250410 PISTON PIN RETAINING RING (2 required per assembly)
RING-RETAINING,NLA 53-F250410
53-F250410

About Mercury Marine

OEM Part

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

Add to shopping cart $1.25 $1.06
10+ In Stock.

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

About Mercury Marine

OEM Part

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

Add to shopping cart $5.00 $4.24
10+ In Stock.

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

About Mercury Marine

OEM Part

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

Add to shopping cart $61.11 $51.76
1 In Stock.

#12 F2A521016 CONNECTING ROD W/BEARING (1 required per assembly) ILLUS. 34
F2A521016 - CONNECTING ROD AS  NLA
F2A521016

About Mercury Marine

OEM Part

F2A521016 - Connecting Rod Assembly,NLA [ More info ]
Unavailable
#13 FA567241 CRANKPIN ROLLER & CAGE SET (1 required per assembly)
CAGE/ROLLER ASSY,NLA FA567241
FA567241

About Mercury Marine

OEM Part

FA567241 - Roller And Cage Set [ More info ]

Add to shopping cart $10.78
10+ In Stock.

#14 F1493 PAN HD SCREW, 1/4 - 20 X 5/8 (2 required per assembly)
F1493 - SCREW (.250-20 x   - Replaced by 10-28639
F1493

F1493 - Screw - Priced Individually [ More info ]
Unavailable
SCREW 10-28639
10-28639

About Mercury Marine

OEM Part

10-28639 - Screw - Priced Individually [ More info ]

Add to shopping cart $1.99 $1.68
10+ In Stock.

#15 F521925 LINK, CHOKE KNOB (1 required per assembly)
LINK,NLA F521925
F521925

About Mercury Marine

OEM Part

F521925 - Choke Knob Link, NLA [ More info ]

Add to shopping cart $3.00 $2.54
10+ In Stock.

#16 F2041 HEX HD M. SCREW, 10 - 24 X 3/8 (1 required per assembly)
SCREW-SS,NLA 10-F2041
10-F2041

About Mercury Marine

OEM Part

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

Add to shopping cart $1.25 $1.06
10+ In Stock.

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

13-F1975 - LockWasher - Priced Individually [ More info ]
Unavailable
LOCKWASHER 13-26996
13-26996

About Mercury Marine

OEM Part

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

Add to shopping cart $1.20
10+ In Stock.

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

This part has been superseded.

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

About Mercury Marine

OEM Part

F665163 - Support Plate Front Cover [ More info ]

Add to shopping cart $8.89 $7.53
10 In Stock.

#19 FC521248 DECAL, CHOKE (1 required per assembly)
FC521248 - DECAL              NLA
FC521248

About Mercury Marine

OEM Part

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

About Mercury Marine

OEM Part

F521547 - Choke Knob, NLA [ More info ]

Add to shopping cart $6.00 $5.08
10+ In Stock.

#21 FA271038 SUPPORT PLATE (1 required per assembly)
100-FA271038 - PLATE ASSEMBLY Su  NLA
100-FA271038

About Mercury Marine

OEM Part

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

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

About Mercury Marine

OEM Part

16-827618 - Stud, NLA [ More info ]

Add to shopping cart $5.99 $5.07
10+ In Stock.

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

About Mercury Marine

OEM Part

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

Add to shopping cart $2.21 $1.88
10+ In Stock.

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

About Mercury Marine

OEM Part

12-F8015 - Washer, NLA [ More info ]

Add to shopping cart $2.09 $1.77
10+ In Stock.

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

About Mercury Marine

OEM Part

23-F521319 - Bushing, NLA [ More info ]

Add to shopping cart $3.00 $2.54
10+ In Stock.

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

About Mercury Marine

OEM Part

F521079 - Handle, NLA [ More info ]

Add to shopping cart $8.89 $7.53
4 In Stock.

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

About Mercury Marine

OEM Part

11-F1756 - Nut, (3/8-16)(Stainless Steel) NLA [ More info ]

Add to shopping cart $2.00 $1.69
10+ In Stock.

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

About Mercury Marine

OEM Part

F390137 - Grip, NLA [ More info ]

Add to shopping cart $5.56 $4.71
8 In Stock.

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

About Mercury Marine

OEM Part

22-F1789 - Pipe Plug, NLA [ More info ]
Unavailable
#30 F1107 FILL HD M. SCREW, 1/4 - 20 X 3/4 (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 $0.70 $0.60
10+ In Stock.

#31 F2040 HEX WASHER HD TAPTITE SCREW, 1/4 - 20 X 5/8 (1 required per assembly)
10-F2040 - SCREW              NLA
10-F2040

About Mercury Marine

OEM Part

10-F2040 - Screw -ss, NLA [ More info ]
Unavailable
#32 F1504 SLOTTED FILL HD SCREW, 1/4 - 20 X 1-1/4 (4 required per assembly)
SCREW-SS 10-F1504
10-F1504

About Mercury Marine

OEM Part

10-F1504 - Screw -ss [ More info ]

Add to shopping cart $2.79
Available to Order: Shipping delay up to 10 days.

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

About Mercury Marine

OEM Part

17-F8559 - Pin, Dowel [ More info ]

Add to shopping cart $1.30 $1.11
10 In Stock.

#34 F36634 SCREW, CONNECTING ROD (2 required per assembly)
10-F36634 - SCREW              NLA
10-F36634

About Mercury Marine

OEM Part

10-F36634 - SCREW,NLA [ More info ]
Unavailable
#35 F521579 SEAL, CRANKSHAFT SPINE (1 required per assembly)
O RING,NLA 25-F521579
25-F521579

About Mercury Marine

OEM Part

25-F521579 - 0-Ring Seal, Crankshaft Spline,NLA [ More info ]

Add to shopping cart $1.80
5 In Stock.

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

F521118-1 - Seal [ More info ]
Unavailable
SEAL,NLA 26-819798
26-819798

About Mercury Marine

OEM Part

26-819798 - Seal, NLA [ More info ]

Add to shopping cart $19.76
10+ In Stock.

#37 F2A527018 CRANKSHAFT (1 required per assembly) W/ILLUS. 45 AND 46
400-F2A527018 - CRANKSHAFT ASSEMB  - Replaced by 400-819797A1
400-F2A527018

400-F2A527018 - Crankshaft [ More info ]
Unavailable
400-819797A1 - CRANKSHAFT ASSY        NLA
400-819797A1

About Mercury Marine

OEM Part

400-819797A 1 - CrankShaft Assembly, NLA [ More info ]
Unavailable
#38 F521013 BEARING, CRANKSHAFT UPPER (1 required per assembly)
BEARING-ROLLER,NLA 31-F521013
31-F521013

About Mercury Marine

OEM Part

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

Add to shopping cart $7.55
3 In Stock.

#39 F521146 SEAL, CRANKSHAFT UPPER (1 required per assembly)
F521146 - SEAL               - Replaced by -F521146-1
F521146

F521146 - F5211461 [ More info ]
Unavailable
F521146-1 - SEAL               - Replaced by 26-819799
F521146-1

F521146-1 - Seal [ More info ]
Unavailable
SEAL,NLA 26-819799
26-819799

About Mercury Marine

OEM Part

26-819799 - Seal, NLA [ More info ]

Add to shopping cart $8.39
10+ In Stock.

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

F521529 - 27F712529 [ More info ]
Unavailable
GASKET 27-F712529
27-F712529

About Mercury Marine

OEM Part

27-F712529 - Cylinder Head Gasket [ More info ]

Add to shopping cart $28.09 $18.88
5 In Stock.

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

About Mercury Marine

OEM Part

900-F521518 - Cylinder Head,NLA [ More info ]
Unavailable
#42 33-82370M SPARK PLUG (L-86) (USA) (1 required per assembly)
33-82370M - SPARK PLUG         - Replaced by 33-82370M1
33-82370M

33-82370M - NGK B6HS Note: Priced Individually [ More info ]
Unavailable
33-82370M1 - NGK B6HS @4 - Replaced by -813472
33-82370M1

33-82370M 1 - NGK B6HS - Priced Individually [ More info ]
Unavailable
33-813472 - NGK BR6HS @10
33-813472

About Mercury Marine

OEM Part

33-813472 - NGK Spark Plug BR6HS , Priced Individually [ More info ]
Unavailable
CHAMPION PLUG (#306) L86C
L86C

About Champion Spark Plugs

OEM Match

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

Add to shopping cart $4.50 $3.29
Available to Order: Shipping delay up to 10 days.

#43 F8028 PLAIN WASHER (2 required per assembly)
F8028 - WASHER Plain       - Replaced by 12-F8008
F8028

F8028 - 12F8008 [ More info ]
Unavailable
12-F8008 - WASHER             - Replaced by 12-35044
12-F8008

12-F8008 - Washer [ More info ]
Unavailable
WASHER (.281 x .625 x . 12-35044
12-35044

About Mercury Marine

OEM Part

12-35044 - Washer, (.281 X .625 X .065) Stainless Steel [ More info ]

Add to shopping cart $2.49
10+ In Stock.

#44 F1426 HEX HD SCREW W/LOCKWASHER, 1/4 - 20 X 7/16 (2 required per assembly)
10-F1426 - SCREW AND LOCKWAS  NLA
10-F1426

About Mercury Marine

OEM Part

10-F1426 - SCREW-W/LW,NLA [ More info ]
Unavailable
#45 F521270 SLINGER (1 required per assembly)
SLINGER,NLA F521270
F521270

About Mercury Marine

OEM Part

F521270 - Slinger, NLA [ More info ]

Add to shopping cart $1.88 $1.59
10+ In Stock.

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

About Mercury Marine

OEM Part

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

Add to shopping cart $22.22 $18.82
5 In Stock.

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

About Mercury Marine

OEM Part

F341284-1 - Knob, NLA [ More info ]

Add to shopping cart $17.25
10+ In Stock.

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

F9102 - 53F455208 [ More info ]
Unavailable
RING-RETAINING 53-F455208
53-F455208

About Mercury Marine

OEM Part

53-F455208 - Ring - Retaining [ More info ]

Add to shopping cart $1.80
1 In Stock.

#50 FG1022 GASKET SET. (1 required per assembly)
FG10221 FG1022
FG1022

About Mercury Marine

OEM Part

FG1022 - FG10221 [ More info ]

Add to shopping cart $50.00
1 In Stock.

GASKET SET,NLA FG1022-1
FG1022-1

About Mercury Marine

OEM Part

FG1022-1 - Gasket Set [ More info ]

Add to shopping cart $35.87 $30.38
6 In Stock.


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