6H3-W0078-02-00 18-3465 Water Pump Repair Kit for Yamaha 50 60 70 HP Outboard

Product Overview

This water pump repair kit provides all necessary components to restore the cooling system on selected Yamaha outboard engines. Designed for Yamaha 50, 60, and 70 HP models, it includes the impeller, gaskets, seals, and o-rings needed for a complete water pump rebuild. Boat owners and marine mechanics use this kit to prevent overheating and maintain reliable engine performance.

Key Features & Performance

• Includes impeller, gaskets, seals, and o-rings for a full water pump overhaul
• Direct fit replacement for Yamaha 6H3-W0078-02-00 and Sierra 18-3465 specifications
• Constructed with corrosion-resistant materials suitable for saltwater and freshwater use
• Ensures consistent water flow to the engine cooling system
• Cost-effective alternative to buying individual components

Fitment & Compatibility

• Yamaha 50 HP outboard (1990s–2000s)
• Yamaha 60 HP outboard (1990s–2000s)
• Yamaha 70 HP outboard (1990s–2000s)

Common Uses

• Replacement of worn water pump impellers during annual maintenance
• Rebuilding cooling systems on outboard engines showing signs of overheating
• Preventive service before the boating season to avoid impeller failure
• Repair of water pump housings with corroded seals or gaskets

Technical Specifications

• Part Number(s): 6H3-W0078-02-00, 18-3465
• Kit Contents: Impeller, gasket set, seal set, o-rings
• Engine Type: Yamaha 2-stroke and 4-stroke outboard (50/60/70 HP)

Frequently Asked Questions

Q: Will this water pump repair kit fit a Yamaha 60 HP outboard from 1995? A: This kit fits most Yamaha 50, 60, and 70 HP outboards from the 1990s and 2000s; always verify your engine’s serial number to confirm compatibility.

Q: Does the kit include the impeller housing? A: No, the kit supplies the impeller, gaskets, seals, and o-rings but not the housing. You may reuse your existing housing if it is in good condition.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.