Crowley Marine: serving boaters for over 50 years Crowley Marine: serving boaters for over 50 years
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Piston Ring Set 39-78816A12

$154.95
Save $8.22 (5%)
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: 200 days ago Update Now

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Product Description

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

Product Questions

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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.

Flat $3.95 Shipping on ALL parts orders

We offer shipping flat $3.95 shipping on ALL parts orders. (Complete Engines, Lower Units and Sterndrives excluded). In addition orders over $89 have reduced cost express shipping available in checkout.

shipping map shipping map legend

You can get a rough idea of standard transit times from the map above.