OEM Quicksilver 79831A1 Lower Unit Seal Kit for Mercury and Mariner
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Description
Description
Quicksilver 79831A1 lower unit seal kit is an OEM service part for selected Mercury and Mariner engines.
Verified application examples
- Selected two-stroke examples: 35 hp two-cylinder, USA 6445653 and up; 40 hp two-cylinder, 4860103–6445652; and 40 hp four-cylinder, 0C159200–0G589999.
- Also listed for 45 hp four-cylinder, USA 5531630 and up; 50 hp four-cylinder, 4357640 and up; 50/60 hp three-cylinder, 6428681–0D000749; and 70 hp three-cylinder, 4571652–0A996141.
- Later engines in these horsepower classes may use a different lower-unit seal kit.
Manufacturer part number: 79831A1
Match the engine serial number and original part number. These examples do not represent universal fitment across the listed horsepower classes.

