LucaSng Water Pump Rebuild Kit for 3‑Cylinder 60–75HP Evinrude/Johnson — Complete impeller & seals

LucaSng 432955 / 18-3389 water pump rebuild kit restores cooling performance for 3-cylinder 60–75HP Evinrude and Johnson outboards by replacing worn impeller and seals with a complete set of OEM-replacement parts.

This rebuild kit is designed for boat owners and technicians who need a practical, complete solution to repair the raw water pump on 3-cylinder 60hp–75hp Evinrude and Johnson outboards from a range of model years. The kit gathers the essential components shown in product photography so you can replace the impeller, gaskets, seals, and hardware in one service stop, avoiding multiple parts orders or repeated shop visits.

Which engines and model years does this kit fit?

The LucaSng 18-3389 kit fits a broad range of 3-cylinder outboards across several production years. It covers 60HP, 65HP, 70HP and 75HP configurations including both 2-stroke and 4-stroke variants where listed by manufacturers.

• 60HP: 1989–2001 (3-cylinder) and 1998–Up (4-stroke)
• 65HP: 1979–2001 (3-cylinder)
• 70HP: 1979–1994 (3-cylinder) and 1998–Up (4-stroke)
• 75HP: 1979–1988

What parts are included and which original numbers does it replace?

This kit ships complete with the internal components typically replaced during a water pump service so you get impeller, rubber parts, and necessary gaskets and hardware in one package. It’s intended to be a direct replacement for several common part numbers used by OEMs and aftermarket suppliers.

• Complete set of impeller, housing gaskets, seals, and O-rings
• Included hardware as shown in the product photos for straightforward installation
• Replaces part numbers: 18-3389, Mallory 9-48213, 432955, 436957, 0438591, 438597

How does installing this kit affect boat maintenance and uptime?

Replacing worn water pump components proactively prevents cooling issues that can lead to overheating and engine downtime. Using a full rebuild kit reduces service time because you won’t need to source individual parts, and refreshed seals and impeller restore reliable raw water flow.

• Minimizes repeat repairs by replacing the common wear items together
• Shortens time out of the water with a single, consolidated service
• Helps maintain optimal engine cooling when installed per service manual

What should I know before buying and installing this kit?

Confirm your engine’s exact model year and horsepower to ensure compatibility; some years and stroke types are different even within the same horsepower class. Basic mechanical skill and standard marine tools are required, and following the outboard manufacturer’s service manual is recommended for torque specs and alignment procedures.

• Verify engine model year and 2‑stroke vs 4‑stroke designation before ordering
• Inspect the pump housing and drive components for damage before reassembly
• Use recommended lubricants and follow torque guidelines during installation

Who is this for: This rebuild kit is intended for do-it-yourself boat owners, marine service technicians, and fleet operators maintaining 3-cylinder Evinrude and Johnson outboards in the 60–75HP range. If you need a complete, parts-matched set to refresh the raw water pump and match common OEM numbers, the LucaSng 432955 / 18-3389 kit provides the components necessary to complete a thorough rebuild without sourcing multiple suppliers.