OldMercs Online Catalog-THE Source for Mercury Outboard Motor Parts

 Pistons and Piston Rings

   
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We can supply new standard rings for nearly every Mercury Outboard.  Oversize rings are often more difficult to supply, but please ask.
The following Pistons we can supply but don't carry in stock. We can usually ship them within 3 days or can have them direct shipped if you need them (as long as they are still available) sooner than that.
Part Number Models Price (Each) Click Below to Purchase
774-9137A12 Standard Piston for 1977-79 Merc 700, 850, 900, and 1150 $109.32
774-9137A13 Over Size Piston for 1977-79 Merc 700 and 1150 $114.55
774-9137A9 Standard Piston for 1977-79 Merc 1500 and 1500XS $114.55
774-9137A10 Over Size Piston for 1978-79 Merc 1400 $118.09
765-7441T36 Standard starboard Piston for 1977-79 Merc 1750 $116.75
765-7442T36 Standard port Piston for 1977-79 Merc 1750 $116.15
766-8666T41 Standard starboard Piston for 1978-79 Merc 2000 $126.56
766-8667T41 Standard port Piston for 1978-79 Merc 2000 $126.56
719-7391T3 Standard Piston for 1980-85 Merc 7.5 and 9.8 HP $170.39
780-9229A7 Standard Piston for 1980-81 Merc 20 HP $112.70
       
       

The following are Piston Rings (sold individually) for some common Standard Rings for Mercury Outboards:

Part Number Models Price (Each) Click Below to Purchase
39-20058 KE7, KF7, KF9, KG7, KG7H KG9, KH7, Mark 20 & 20H, Mark 40 & 40H, Mark 50, Mark 25, Mark 55 & 55H, Mark35A, Merc 300, Merc 350 (4 cyl.), Mark 75 $6.75
 
39-21665 KB & KD Models, KE3, KE4 & KE4A, KF3, Mark 7, Merc 39, 1 cyl. Merc 40, Merc 45, Merc 75, Merc 110 $4.30
 
39-21680 KG4 & KG4H, Mark 15, Mark 30 & 30H $9.00
 
39-22593 KF5, Mark 5, Mark 6, Mark 6A, Merc 60, 60J $7.78
 
39-23124 Mark 10, Mark 10A, Mark 15A, Merc 100, Merc 150 $4.00
39-27841 Mark 28, Mark 28A, Mark 58, Mark 55A, Mark 58A, Mark 75A, Mark 78, Mark 78A, Merc 200, Merc 250, Merc 400, Merc 450, Merc 500, Merc 600, Merc 700 $4.46
 
39-30001 (1/16" thick) Merc 800 6 cyl. Direct Reversing $4.50 No Longer Available
39-30587 (3/32" thick) Merc 800 6 cyl. $4.65
39-31329 62-63 100HP $5.10 No Longer Available
39-32921 Merc 350, 650, 850, 900, 950, 1000 $6.45
39-37654 Merc 1100 $5.10 No Longer Available
39-39100 Merc 350 $6.50 No Longer Available
39-12810 Used on many 18, 25, and 25 HP models. $13.50
39-45153 Merc 650, 1100 $9.95
 
39-64715 Merc 1500 $6.75
 
39-78816 Merc 402, 650, 800, 850, 900, 950, 950SS, 1000, 1150, 1350, 1500 $5.10
 

The following rings are not sold individually.  They are sold only in a complete set of 12 rings.
Part Number Fits: Price per Set of 12 Click Below to Purchase
39-78807A12 Set of 12 original style keystone shaped rings for Merc 1750 $321.24
 
39-78811A12 Set of 12 over size piston rings for many Mercury 3, 4 and 6 cyl. See model guide for applications. $71.30
39-813011A12 Set of 12 standard piston rings for 1978-79 Merc 2000. $301.73
       
Others available, please inquire.   We have a large stock of generic piston rings for outboards of all makes in the 1930-1960 period. Specify exact cylinder bore, ring width, and piston ring groove depth.


 

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