Water Pump Impeller Kit – Fits Yamaha 115HP & 130HP 2-Stroke Outboards (Replaces 6E5-W0078-A1-00)

Water Pump Impeller Kit – Fits Yamaha 115HP & 130HP 2-Stroke Outboards (Replaces 6E5-W0078-A1-00)

This Water Pump Impeller Kit is designed for Yamaha 2-Stroke outboard engines rated at 115HP and 130HP, covering models from 1984 to 1996 including the C115 and L130 series. It provides a precise fit for the lower unit or gear case, built for marine environments.

It serves as a direct replacement for Yamaha part numbers 6E5-W0078-A1-00, 6E5-W0078-00-00, 6E5-W0078-01-00 as well as Sierra parts 18-3373 (with housing) and 18-3372 (without housing).

• Complete water pump service components included
• Compatible with 2-Stroke engines
• Installation in lower unit/gear case

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Yamaha owners, here9s a guide to help you identify your engine9s serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

Technical Specifications

Package Contents

• 1 x Impeller (6E5-44352-01-00)
• 1 x Wear Plate
• 1 x Gasket, Water Pump (6E5-44315-A0-00)
• 2 x O-Ring
• 1 x Key, Woodruff (90280-04M05-00)
• 2 x Dowel Pin (93606-12019-00)
• 4 x Bolt with Washer
• 1 x Insert Cartridge (6E5-44322-00-00)

Installation Guide

1. Remove the lower unit or gear case from the outboard engine according to the manufacturer's instructions.
2. Drain any remaining water from the gear case housing before proceeding.
3. Remove the old water pump impeller and all related components carefully.
4. Clean the water pump housing thoroughly to remove debris and buildup.
5. Install the new impeller and associated parts from the kit, ensuring proper alignment.
6. Replace the gasket, O-rings, dowel pins, and bolts as provided in the kit.
7. Reassemble the water pump housing and install the lower unit back onto the engine.
8. Check for proper fit and secure all fasteners to the recommended torque specifications.
9. Test the water pump operation by running the engine and verifying water flow.
10. Inspect for leaks and proper cooling system function before full operation.

Troubleshooting & FAQ

• How do I confirm this fits my engine? Confirm your engine model and year in the Compatible Engine Models table. Check your original part number to ensure proper match.
• What are the differences between this aftermarket kit and OEM parts? This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
• How often should I replace the water pump impeller? Replacement intervals vary with usage and operating conditions, but regular inspection and replacement every 1-2 years or at signs of wear are recommended.
• What are common signs of water pump failure? Reduced water flow, overheating, or visible damage to the impeller are common indicators you should replace the kit promptly.
• How fast do you ship and how much does it cost? We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
• What is your warranty and return policy? This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.