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OMC Rings (scroll down)
Bearings Gaskets&Seals
   
Bolts and Tilt Tubes Lower Gear Case
   
Cooling System Pistons
   
Crank Shafts & Rods Rings
   
Electric System Wrist Pins and Clips
   
Fuel System
Tip: Use a good quality 2 cycle Motor oil to lubricate the rings and Cylinder walls upon assembly. We don't recommend grease- it is different than oil and may cause scuffing.
    
OMC Rings

Model

 Cyl. Bore Size STD Ring .020 Ring .030 Ring .040 Ring Click here to view part, price or cart.gif (2032 bytes)

Each item is a set of rings for 1 piston

Rings listed are for original pistons only.  There are many aftermarket pistons that take different rings. Check first before purchasing ring.  

With all the Rings that did not work out, the back and forth shipping was 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 charges to us to return money to credit cards.  Providing rings is a no-win  situation for the customer and ourselves. 

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.
5-8hp 2 - 18-3972 - - -

- - 18-3973 -

9.9-15HP  74-93 2 2.180 8400 - - -

- 8420 - -

- - 8430 -

9.9 - 15 HP 1993-UP 2 2.375 5218 - - -

- 6360 - -

20HP  81-95,  25HP  77-95,   28HP  86-88, 90, 91, 95,              30HP    84-95 ,  35HP  76-95, 2 3.000 8200 - - -

- 8220 - -

- - 8230 -

40HP  75-92,   48HP  87-92,   50HP  81-92,   55HP   76-92, 60HP  80-85, 2 3.187 8300 - - -

- 8320 - -

- - 8330 -

40-60HP E TEC 2 3.600 6353 - - -

- 2957 - -

- - 2958 -

40, 50, 60HP, 1995-up have seven degree taper on both rings 2 3.187 2955 - - -

- 2959 - -

- - 2956 -

40, 48, 50HP 92-93 60, 70HP 91*, 30 degree taper on the top ring only 3 3.187 8300 - - -

- 8320 - -

- - 8330 -

60HP  86-88, 65Comm 84-86, 70HP  75-85,     75HP  75-88, 3 3.00 8200 - - -

- 8220 - -

- - 8230 -

40, 48, 50HP, 95-97, 60HP  95-97,     70HP  1994-97* 3 3.187 2955 - - -

- 2959 - -

- - 2956 -

60HP  89-94, 65Comm  87-94, 70HP  86-94*, 3 3.187 8300 - - -

- 8320 - -

- - 8330 -

85HP  79-80,    88HP  87-93,     90HP  81-91,   100HP  79-80, 100Comm  84-87, 110HP  86-90, 115HP  73-85, 90-91, 4 3.500 3904 - - -

- 3920 - -

- - 3905 -

- - - 3940

90HP 60V 95-00, 105HP 60V 95-00, 115HP 60V 95-00 4 3.600 6353 - - -

- 2958 - -

- - 2957 -

120HP  85-87, 125HP  71-72, 135HP  73-76, 140HP  77-87,      small bore 4 3.500 3904 - - -

- 3920 - -

- - 3905 -

- - - 3940

120HP  88-92 big bore, 140HP  88-92 big bore, 120HP  93-96,  130HP 95-99,  140HP  93-96, 4 3.685 870 - - -

- 875 - -

- - 2950 -

130hp 1995-up 4 3.685 254 - - -

- 2960 - -

- - 2949 -

120HP 1993-96

145HP 1993-96

 4 3.685 870 - - -

- 875 - -

- - 2950 -

150HP  78-91, 175HP  77-83, 6 3.500 3904 - - -

- 3920 - -

- - 3905 -

- - - 3940

175HP  86-91 6 3.625 8100 - - -

- 8120 - -

- - 8130 -

150HP 60V, 91-92 175HP, 60V 91-92, 6 3.600 3096 - - -

150HP 60V, 93-00 175HP, 60V 93-00 6 3.600 6353 - - -

- 2958 - -

- - 2957 -

185HP  77-83, 200HP  76-83, 86-87,   225HP  86-87, 235HP   78-79, 6 3.500 3904 - - -

- 3920 - -

- - 3905 -

- - - 3940

235HP  80-85 6 3.625 8100 - - -

- 8120 - -

- - 8130 -

200HP  88-92, 225HP  88-92, 6 3.685 870 - - -

- 875 - -

- - 2950 -

200HP  93-96, 200HP  93-96, 6 3.685 254 - - -

- 2960 - -

- - 2949 -

275HP  85-87, 300HP  85-87, 8 3.500 3904 - - -

- 3920 - -

- - 3905 -

- - - 3940

275HP  1988, 300HP  88-92, 8 3.685 870 - - -

- 875 - -

- - 2950 -

275HP  93-96, 300HP  93-96, 8 3.685 254 - - -

- 2960 - -

- - 2949 -