9137A12 8101A3 Mercury 1975-1990 Standard Piston & Connecting Rod Set 35 40 + HP

 
$270.00
International Shipping Quote
Details
  • Brand: Mercury
  • Size: 35 40 50 60 65 70 75 80 85 90 115 HP
  • Color: N/A
  • Style: N/A
  • Condition: Seller Refurbished
  • Notes: Freshwater
  • SKU: 22331 PCR
  • Manufacturer Part Number: 9137A12
  • Country of Manufacture: United States
  • Motor & Engine Type: Mercury
  • Part Type: Motors, Engines & Components
  • Other Part Number: 8101A3
  • Surface Finish: N/A
  • Inventory Number: 26-22331 PCR
  • Website Category: Powerhead
  • Website Sub Category: Pistons
  • UPC: N/A
Mercury Piston & Connecting Rod — 9137A12

Part Number

9137A12

Also Replaces

8101A3

Condition

Seller-refurbished piston — cleaned with glass bead, inspected, and ready to install.
STD bore size.
Includes connecting rod.

Fitment

Mercury
Engine family: Small-block 2-stroke (2-cyl / inline-4)
Years: 1975-1990
HP: 35 40 + HP

⚠ Confirm before purchase: This casting is shared between 2-cyl and inline-4 small-block engines. Confirm cylinder count against your motor before installing.

We've cross-referenced fitment with the resources available to us. It may not cover every model in the years/HPs listed. Please verify the part number against your motor's requirements before purchasing — we're happy to help if you need it.

 
SCO
 

Our Guarantee

Every part we handle is cleaned, inspected, and hand-picked by a real person before it gets listed. What goes into your engine matters — roughly one in three pistons we clean doesn't make the cut and never sees a listing. Pistons are cleaned with glass bead — it lifts carbon without damaging the piston and leaves a clean, inspectable surface so nothing hides under buildup. If something isn't right when it arrives, send us a message and we'll make it right.

Returns

If you order incorrectly or change your mind, return within 45 days with a 20% restocking fee. Buyer pays return shipping. Contact us to facilitate — do not open a return on eBay.

9137A12 8101A3 Mercury 1975-1990 Standard Piston & Connecting Rod Set 35 40 + HP
9137A12 8101A3 Mercury 1975-1990 Standard Piston & Connecting Rod Set 35 40 + HP9137A12 8101A3 Mercury 1975-1990 Standard Piston & Connecting Rod Set 35 40 + HP9137A12 8101A3 Mercury 1975-1990 Standard Piston & Connecting Rod Set 35 40 + HP9137A12 8101A3 Mercury 1975-1990 Standard Piston & Connecting Rod Set 35 40 + HP9137A12 8101A3 Mercury 1975-1990 Standard Piston & Connecting Rod Set 35 40 + HP9137A12 8101A3 Mercury 1975-1990 Standard Piston & Connecting Rod Set 35 40 + HP