Water Pump Impeller – Fits Johnson Evinrude 20–35 HP Outboards (Replaces 395289, 395265)

Water Pump Impeller – Fits Johnson Evinrude 20–35 HP Outboards (Replaces 395289, 395265)

This water pump impeller is designed for Johnson and Evinrude 14–35 HP 2-stroke outboard motors manufactured between 1974 and 2005. It covers 2-cylinder Crossflow models (20–35 HP) and 3-cylinder Loopcharged models (25–35 HP, 1996–2001).

This component is a direct replacement for Johnson/Evinrude part numbers 395289, 0395289, 395265, 0395265, 777818, and 0777818. It also cross-references with Sierra 18-3051, GLM 89750, Mallory 9-45200, and CEF 500370C.

• Direct Replacement: Installs using original factory hardware and procedures.
• Durable Construction: Made from high-strength neoprene rubber with a brass hub for reliable performance in marine environments.
• Key Component: An essential part for maintaining your engine's cooling system and preventing overheating.

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 (395289/0395289)
• 1 x Impeller Key (330619/344470/777845) - Note: Included in some kits but may vary by distributor.

Installation Guide

1. Safety First: Disconnect the battery and remove the spark plug wires to prevent accidental starting.
2. Access the Lower Unit: Drain the gearcase oil. Remove the bolts connecting the lower unit (gearcase) to the upper driveshaft housing.
3. Lower the Gearcase: Carefully separate and lower the gearcase. You may need to disconnect the shift linkage.
4. Open the Water Pump: Locate the water pump housing on top of the gearcase. Remove the bolts to open the housing.
5. Remove the Old Impeller: Note the rotational direction of the old impeller blades. Remove the old impeller and the impeller key from the driveshaft.
6. Clean and Inspect: Clean the inside of the pump housing and inspect it for wear, cracks, or corrosion. Replace the housing if damaged.
7. Install the New Impeller: Insert the new impeller key into the driveshaft. Slide the new impeller onto the shaft, rotating it in the correct direction (usually clockwise) to bend the blades properly as it enters the housing.
8. Reassemble the Pump: Re-install the water pump cover, applying a light coat of marine grease to the inside. Tighten bolts to the manufacturer's specified torque.
9. Reattach the Lower Unit: Reconnect the shift linkage and raise the gearcase back into position. Secure the mounting bolts and refill the gearcase with fresh oil.
10. Test the System: Reconnect the battery and start the engine in a test tank or with a water flusher. Confirm a steady stream of water is exiting the "tell-tale" port.

Troubleshooting & FAQ

Q: How can I be sure this impeller fits my specific Johnson/Evinrude engine?
A: The best way is to match your engine's model and year against the "Compatible Engine Models" table. For 100% certainty, cross-reference the OEM part number stamped on your old impeller with the numbers listed in our "Part Number Cross-Reference" table.

Q: What are the signs that my water pump impeller is failing?
A: The most common signs are a weak or non-existent water stream from the "tell-tale" outlet, an engine temperature alarm, or visible steam from the exhaust. If you notice any of these symptoms, shut the engine off immediately to prevent overheating and severe damage.

Q: How often should I replace the water pump impeller?
A: As a general rule, impellers should be inspected annually and replaced every 1-2 years (or every 100-200 hours of use), depending on operating conditions. Frequent use in saltwater or sandy/silty water may require more frequent replacement.

Q: Does this kit include the housing or gaskets?
A: This product listing is for the impeller and sometimes an impeller key, as noted in the "Package Contents" section. It does not include the full water pump housing, wear plate, or gaskets, which may be sold separately or as part of a complete water pump repair kit.

Q: OEM vs. Aftermarket?
A: 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.

Q: How fast do you ship and how much does it cost?
A: 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.

Q: What is your warranty and return policy?
A: 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.