Water Pump Repair Kit – Fits Johnson/Evinrude 85-300 HP Outboards (Replaces 5001594, 395060, 18-3392)

Water Pump Repair Kit – Fits Johnson/Evinrude 85-300 HP Outboards (Replaces 5001594)

This water pump repair kit is designed to fit a wide range of Johnson/Evinrude V4, V6, and V8 outboard motors from 85 HP to 300 HP, covering model years 1979-2006. It provides a reliable solution for maintaining your engine's cooling system, ensuring optimal performance and longevity.

This kit serves as a direct replacement for multiple OEM and aftermarket part numbers, including Johnson/Evinrude 5001594, 435929, 395060, 390768, 391637, 392750, 393082, 395062, 434421, and 435447.

• Complete kit includes a new pump housing and all necessary components for a full overhaul.
• Features a high-performance neoprene impeller for superior corrosion and chemical resistance.
• Engineered as a direct OEM-equivalent part for straightforward installation.

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 Water Pump Impeller (Replaces 395864, 397131, 435821)
• 1 x Impeller Key (331107)
• 1 x Pump Housing (435959)
• 1 x Insert Cup (338486)
• 1 x Wear Plate (338485)
• 1 x Water Pump Gasket (338484, 324701)
• 1 x Seal (331353)
• 1 x Cover (354578)
• 2 x O-Rings (302035, 331188)
• 3 x Grommets
• 4 x Stainless Steel Bolts
• 2 x Stainless Steel Screws

Installation Guide

1. Disconnect the negative battery terminal to prevent accidental starting.
2. Place a drain pan under the lower unit and remove the drain/fill screws to empty the gear lube.
3. Remove the bolts connecting the lower unit (gearcase) to the upper section of the outboard.
4. Carefully lower the gearcase, disconnecting the shift shaft linkage if necessary.
5. Unbolt and remove the old water pump housing. Note the orientation of all parts as you disassemble.
6. Remove the old impeller, impeller key, wear plate, and any remaining gaskets or seals.
7. Thoroughly clean the driveshaft and all mating surfaces on the gearcase to ensure a proper seal.
8. Install the new gasket and wear plate. Place the new impeller key onto the flat spot on the driveshaft.
9. Apply a lubricant to the new insert cup and impeller, then slide the impeller onto the driveshaft while turning the shaft clockwise to correctly bend the vanes.
10. Install the new pump housing and tighten the bolts to the manufacturer's recommended torque specification.
11. Carefully reinstall the lower unit, ensuring the driveshaft, shift shaft, and water tube are properly aligned.
12. Refill the gearcase with fresh marine gear lube, reconnect the battery, and test the engine in water to confirm a strong and steady tell-tale stream.

Troubleshooting & FAQ

How do I confirm this will fit my engine?
This kit fits a wide array of Johnson/Evinrude 85-300 HP outboards (1979-2006). The most reliable way to confirm fitment is to check your engine's model and year against the "Compatible Engine Models" table and cross-reference your existing part number with our "Part Number Cross-Reference" list.

What are the signs of a failing water pump?
Common symptoms include the engine overheating at idle or low speeds, and a weak, sputtering, or nonexistent water stream from the "tell-tale" outlet. Visible damage to the old impeller, such as cracked, stiff, or missing vanes, also indicates an immediate need for replacement.

How often should I replace the water pump impeller?
As a preventative maintenance measure, we recommend inspecting the impeller annually and replacing it every 1-2 years or every 100-200 hours of operation, whichever occurs first. If you frequently operate in saltwater or sandy/murky water, more frequent replacement is advised.

Is this an OEM part?
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.
• 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.