Quicksilver 77177A3 Water Pump Repair Kit Mercury 30-70 HP

Quicksilver 77177A3 Water Pump Repair Kit Mercury 30-70 HP

Quicksilver 77177A3 is a complete water pump repair kit for select Mercury and Mariner 2-stroke outboards from 30 to 70 HP. This kit includes the impeller, upper and lower housings, face plate, gaskets, drive key, face seal, seal carrier, and water tube coupling.

Key Features

• Complete water pump repair kit for select Mercury and Mariner 2-stroke outboards
• Designed for 30-70 HP applications listed by Mercury/Quicksilver
• Includes upper and lower housings for a more complete service than an impeller-only repair
• Impeller elastomer helps provide flexibility across temperature ranges
• Designed to help restore cooling flow and protect the engine from overheating

Fitment / Product Details

Fits select Mercury and Mariner 2-stroke outboards including 30 Jet, 35 HP 2-cycle 2-cylinder, 40 HP 2-cycle, 45 HP 2-cycle 4-cylinder, 50 HP 2-cycle 4-cylinder, 50/60 HP 2-cycle 3-cylinder, and 70 HP 2-cycle 3-cylinder models within the serial ranges listed by Mercury/Quicksilver. Always verify fitment by engine serial number, parts diagram, owner’s manual, or service manual before ordering.

What’s Included

• Water pump impeller
• Upper water pump housing
• Lower water pump housing
• Face plate
• Gaskets
• Drive key
• Face seal
• Seal carrier
• Water tube coupling

Why You Should Buy

A worn or damaged water pump can reduce cooling flow and lead to engine overheating. This Quicksilver kit is one of the more complete repair options for compatible 2-stroke outboard water pumps because it includes the housings and related service parts in addition to the impeller.

FAQ

Is this only an impeller?

No. This is a water pump repair kit and includes the impeller, housings, face plate, gaskets, drive key, seal parts, and water tube coupling.

Does this fit every Mercury 30-70 HP outboard?

No. It fits select 2-stroke Mercury and Mariner applications. Verify by serial number before ordering.

Need help confirming fitment?

Use our Ask a Parts Pro page and include your engine serial number.