Water Pump Impeller Repair Kit – Fits Johnson/Evinrude V4, V6, V8 75-250 HP (Replaces 5001595, 435929, 777802)

Water Pump Impeller Repair Kit – Fits Johnson/Evinrude V4, V6, V8 75-250 HP (Replaces 5001595, 435929, 777802)

This water pump impeller repair kit fits a wide range of Johnson/Evinrude 2-Stroke V4, V6 & V8 outboard engines from 75 to 250 HP (1993–2009), including many E-TEC models. It provides a reliable solution for restoring your engine's cooling system to factory specifications.

This kit is a direct replacement for Johnson/Evinrude OEM part numbers 5001595, 435929, and 777802. It also cross-references with Sierra 18-3315-2, GLM 12000, and Mallory 9-48200.

• Engineered for a direct fit, simplifying installation.
• Includes a durable housing with a stainless steel liner for corrosion resistance.
• Comes as a complete kit with housing, impeller, plate, gaskets, seals, and all necessary hardware.

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 Johnson/Evinrude owners, here’s a guide to help you identify your engine’s serial/model: Johnson/Evinrude Serial Number Guide.

Technical Specifications

Package Contents

• 1 x Cup, Impeller Housing (338486)
• 1 x Impeller Housing Cover (338893)
• 1 x Impeller & CAM Assembly (5001593)
• 1 x Plate (338485)
• 1 x Impeller Housing to Plate Seal (331353)
• 1 x Impeller Housing Plate Gasket (338484)
• 1 x Impeller Key (331107)
• 1 x Water tube to exhaust Housing Grommet (314008)
• 1 x Grommet (320943)
• 1 x Grommet (338601)
• 1 x O-Ring (331188)
• 1 x Spacer to Impeller O-Ring (5" Longer Model) (302035)
• 1 x Screw (306643)
• 1 x Impeller Housing to gearcase - Y Screw (302325)

Installation Guide

1. Safety First: Disconnect the negative battery cable to prevent accidental starting.
2. Access the Lower Unit: Position the engine securely and remove the bolts connecting the lower unit (gearcase) to the upper casing.
3. Remove the Old Pump: Carefully lower the gearcase. Once removed, unbolt and detach the existing water pump housing.
4. Inspect and Clean: Remove the old impeller, wear plate, and gaskets. Thoroughly clean all mating surfaces, removing any old gasket material or corrosion.
5. Install New Components: Place the new gaskets and wear plate into position. Slide the new impeller onto the driveshaft, turning the shaft clockwise to bend the vanes correctly.
6. Install Housing: Lightly lubricate the inside of the new pump housing and install it over the impeller. Secure it with the provided bolts, tightening them to the manufacturer's specified torque.
7. Reassemble: Carefully guide the lower unit back into place, ensuring the driveshaft, shift shaft, and water tube align correctly. Reinstall the mounting bolts.
8. Final Checks: Reconnect the battery. Start the engine using a flush-muzzle or in the water and check for a strong, steady stream from the tell-tale outlet, confirming proper operation.

Troubleshooting & FAQ

How do I confirm this kit fits my specific engine model?
This kit is designed for Johnson and Evinrude 2-Stroke V4, V6, and V8 outboards (75-250 HP) from 1993–2009. Please check the detailed "Compatible Engine Models" table on this page and cross-reference your engine's model, year, and OEM part number (5001595) to ensure an exact match.

What are the signs that my water pump impeller needs replacement?
Common signs of a failing impeller include the engine overheating at idle or low speeds, a weak or inconsistent water stream from the tell-tale outlet, and visible damage such as cracked, stiff, or broken fins on the old impeller upon inspection.

How often should I replace my water pump impeller?
As a preventative maintenance measure, it is recommended to replace the impeller every 1-2 years or every 100-200 hours of use, depending on operating conditions (e.g., saltwater vs. freshwater).

OEM vs. Aftermarket?
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 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. Brand names and part numbers are used for identification purposes only.
• Professional installation is recommended to ensure safety and optimal performance. Improper installation can lead to engine damage.

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.