COVID-19 UPDATE: How Crowley Marine is preparing & responding. Read more...
Crowley Marine: serving boaters for over 50 years Crowley Marine: serving boaters for over 50 years
Parts in stock Most parts in stock Same day fulfillment
$3.95 shipping on all orders*
Low Price Guarantee
9.6 Pilot logo
0My cart

Select Your Engine:

Piston Ring Set 39-78816A12

$154.95
Save $8.22 (5%)
CROSS SHIP Leaves in 3-5 days

This product will be cross shipped from one of our secondary warehouses. Please note the additional handling time.

Last update: 80 days ago Update Now

WHS1 WHS2 WHS3 WHS4
In Stock In Stock Unavailable Unavailable

Product Description

Mercury factory part. Search for more factory parts & parts diagrams.

Product Questions

There are no questions for this product. Ask a new question and receive an answer, directly from our support staff.

Product Fitment Grid

This guide is to be used as a reference only. You must verify fitment using your model or serial number.

BRAND MODEL 1975 1976 1977 1985
Mariner Outboard 85 - - x -
Mariner Outboard 85 [EL] - - x -
Mercury Outboard 40 x x x -
Mercury Outboard 65 x x - -
Mercury Outboard 85 x x x -
Mercury Outboard 85 [L] - - x -
Mercury Outboard 115 [ELPT] - x x x
Mercury Outboard 115 [EL] - x x x
Mercury Outboard 150 x x x -
Mercury Outboard 150 [ELPT] - x x x
Mercury Outboard 150 [EL] - x x x
Mercury Outboard 150 [XS] - - x -

Customers Also purchased

Supersession Chain

Name SKU Superceding SKU
Piston Ring Set VIEWING THIS PRODUCT 78816A12 CURRENT
Piston Ring Set 45155A12 78816A12

Aftermarket Product Interchange

Name SKU Price Brand
Piston Rings 18-3902 $34.18 Sierra Marine
Due to manufacturer policy OEM Mercury products can only be shipped to addresses within the United States.