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Force Outboard Motor Pistons

Chrysler            or                Force Outboard Motor

Is my piston top guided or bottom guided? 

How to tell if it’s top or bottom Guided: Check the forging number on the rod.

2-5 Cylinder (bottom guided): Forging #818052, (335016-2), (818052A3)
2-4 Cylinder Top Guided: Forging #9612

Force Outboard Motor & Mercury Outboard Sport Jet Pistons Force Outboard Motor part: Piston

Model Cylinder Piston Size Bore Size Wiseco Pistons Pro-V View Price, Part orForcei1.jpg (3670 bytes)

  Bearings for pistons listed below

Wrist pin bearing WP29-1 Wiseco Pistons Must use  WP29-1 conversion wrist pin bearing 

except 3164's and 6400 series uses 4036-29 wrist pin bearing (see below for 4036-29)

WP29-1 -

 
Bearing  4036-29

 

Piston  series 3164s and 6400 series uses 4036-29 wrist pin bearing also needs washers below 4036-29 -

Wrist pin washer  wp37w (goes with 4036-29 bearing)

 

wp37w washer 4036-29 3164's and 6400 series (need to order 2 washers per rod) wp37w -

 Pistons

40 HP 1992 X-flow

40 HP 94-95        

50 HP 91-95       

70 HP 91-95

(bottom guided)

2-5 Cylinder (bottom guided): Rod Forging #818052

2

2

2

3

 

STD 3.375 3151PS V5100

 
010 3.385 3151P1 v5110

-
020 3.395 3151P2 v5120

-
030 3.405 3151P3 v5130

-
040 3.415 3151P4 -

   
50 HP 84-88 2 STD 3.187 3167PS -

020 3.207 3167P2 -

030 3.217 3167P3 -

   
90 HP 1996

95XR 1997 - 1999

120 HP 1996- 1999 (SPORT Jet Motor) see next piston down for 120 regular motors

 

3

3

4

 

 

STD 3.312 3129PS -

- 2900V

010 3.322 - -  
- 2910V

020 3.332 3129P2 -

- 2920V

030 3.342 3129P3 -

- 2930V

040 3.352 3129P4 -

- -
40 HP 96-99     

 50 HP 96-98      

 75 HP 96-98      

  90 HP 1996-1998  ** Scroll 2 boxes down for 90 HP (1990 - 1995)

120HP 1996 - 1999

Top Guided

NOTE: **** Top guided pistons use 4036-29 Wrist Pin Bearing *****and 2 ea. wp37w washers. Click here to order.3026-29.htm3026-29.htm

2-4 Cylinder Top Guided: Rod Forging #9612

2

2

3

3

 

4

 

STD 3.375 3164PS -

-
010 3.385 3164P1 -

-
020 3.395 3164P2 -

-
030 3.405 3164P3 -

-
040 3.415 3164P4 -

  
50HP 1989-90 (In 90 both 3.312 & 3.375 were made. Please check)

85 HP 84-89      

120HP 1990      

125HP 84-89       

150HP 89-90

2

3

4

4

5

STD 3.312 3129PS -

- 2900V

010 3.322 - -  
- 2910V

020 3.332 3129P2 -

- 2920V

030 3.342 3129P3 -

- 2930V

040 3.352 3129P4 -

- -  
90 HP 90-95  

120HP 91-95    

150HP 91-94

1993-95 Mercury Outboard Sport Jet,  (bottom guided)   (Mercury Outboard sport jet uses the WP29-1 Wrist Pin Bearing)

2-5 Cylinder (bottom guided): Rod Forging #818052

 

3

4

5

 

 

STD 3.375 3151PS v5100

-
010 3.385 3151P1 v5110

-
020 3.395 3151P2 v5120

-
030 3.405 3151P3 v5130

-
040 3.415 3151P4 -

- -

Mercury Outboard Sport Jet:  Look above and below for your model.

The Sport Jets below need the 4036-29 Wrist Pin Bearing (top guided rods). STD 3.375 3164PS -

-
Mercury Outboard Sport Jet, 3 cylinder, 1996
010 3.385 3164P1 -

- -
Mercury Outboard Sport Jet 95XR,  3 cylinder, 1997-1999
020 3.395 3164P2 -

Mercury Outboard Sport Jet, 4 cylinder,120 HP 1996, -
030 3.405 3164P3 -

Mercury Outboard Sport Jet,4 cylinder,  120 XR 1997 - 1999
- -
040 3.415 3164P4 -