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Mercury / Mariner Outboard Motor Section

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Mercury Outboard Rings

Mercury outboard rings are for original Mercury outboard  pistons.  There are many aftermarket pistons that take different rings. Check first before purchasing rings for replacement pistons.

Each item is a set of rings for 1 Piston

Rings listed are for original pistons only.    

With all the rings that do not work out, the back and forth shipping is killing us. It's not cost effective to ship rings back and forth or restock rings, issue credits, incur credit card charges, more transaction fees and double credit charges transaction  to us to return money to credit cards.   Providing rings is usually a no-win  situation for the customer and ourselves. 

In most cases it is best to replace the piston with a Wiseco piston. The new pistons all come with rings. Rings are always available for aftermarket Wiseco pistons.

Mercury Outboard Rings

Model  (HP) Cyl. Standard Bore Size OE # Bore Size Part # (photo);

cart.gif (2689 bytes)
3.5, 3.6, 3.9, 4, 4.5 1 2.000 39-21665A12 STD 3900 

20-25 2 2.565 39-27841A12 STD 3903

35, 40 2 2.875 39-77816A12 STD 3902

39-78811A12 .015 3915

39-88392A12 .030 3930

40 Mariner Only 2 2.953 - STD 610 

- .020 610-50

40, 45, 50 Classic 4 2.565 39-27841A12 STD 3903  

60, 65, 70, 75, 80, 85 3, 4 2.875 39-77816A12 STD 3902

39-78811A12 .015 3915

39-88392A12 .030 3930

60 HP Big Foot 39-1255A6 STD 1255

39-1695A6 .015 1695

70, 75, 80, 85, 90 3 3.375 39-77816A612 STD 2612 

39-78811A12 .015 2614 

39-88392A12 .030 2616 

75, 90, 100, 110, 115, 125HP 1994-98  3, 4 3.500 39-822321A12 STD 321

- .015 321-15

- .030 321-30

100, 115 4 3.375 39-96170A12 STD 2612 

39-96170A12 .015 2614 

39-96170A4 .030 2616 

90, 95, 100, 115, 125, 135, 140, 150HP 6 2.875 39-77816A12 STD 3902

39-78811A12 .015 3915

39-88392A12 .030 3930

135, 150  2 liter V6 3.125 39-39481A12 STD 934

- .015 934-15

- .030 934-30

150  2.4 XR4 V6 3.375 39-18487A12 STD 170

- .015 170-15

- .030 170-30

175  2 liter V6 3.125 39-39481A12 STD 934

- .015 934-15

- .030 934-30

175, 200, 225  2.4 liter V6 3.375 39-813011A12 STD 1868

- .015 170-15

- .030 170-30

175, 200  2.5 Litre

200, 225 HP 2.4 litre

 V6 3.500 39-815515A12 STD 481

.015 481-15

.030 481-30

2.5L sn G052595-UP V6 3.500 39-822321A12 STD 321

3.0 liter

1994-00

  

V6

 3.625 - STD 179

- .015 179-15

- .030 179-30