396809 777214 Water Pump Impeller for Evinrude Johnson OMC | JLM Marine

Water Pump Impeller – Fits Johnson Evinrude OMC 2-Stroke 35–55 HP Outboards

This water pump impeller is engineered to fit Johnson, Evinrude, and OMC BRP outboard motors rated at 35HP, 40HP, 45HP, 48HP, 50HP, and 55HP. It ensures reliable cooling system performance for 2-stroke engines manufactured between 1986–1999, covering a wide range of model years and configurations including commercial applications.

This impeller directly replaces OEM part numbers 396809 and 777214, as well as popular aftermarket equivalents from Sierra, CEF, and Mallory. It delivers dependable water flow to protect your engine from overheating during operation.

• Precision-molded 6-blade design for optimal flow and durability
• Direct replacement for multiple OEM and aftermarket part numbers
• Suitable for both recreational and commercial outboard applications

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 × Outboard Water Pump Impeller

Installation Guide

1. Disconnect the fuel line and remove the engine cowling to access the lower unit. Ensure the engine is off and cool before beginning work.
2. Drain the lower unit gear oil and disconnect the shift linkage. Remove the bolts securing the lower unit to the mid-section and carefully separate the two.
3. Remove the water pump housing bolts and lift off the housing. Take note of the orientation of the old impeller and any wear plates or gaskets.
4. Carefully extract the old impeller from the pump body, inspecting the housing and plate for scoring or damage. Clean all surfaces thoroughly.
5. Lubricate the new impeller with glycerin, soapy water, or water pump grease (never petroleum-based products). Do not use motor oil or harsh solvents.
6. Install the new impeller into the pump housing, ensuring the blades rotate in the correct direction as indicated by wear patterns. Align the drive pin or key properly.
7. Replace all gaskets, O-rings, and seals included with your water pump kit (if applicable). Reusing old gaskets can cause leaks and poor performance.
8. Reinstall the water pump housing and torque bolts to manufacturer specifications in a crisscross pattern. Do not over-tighten.
9. Reattach the lower unit to the mid-section, reconnect the shift linkage, and secure all bolts. Refill the lower unit with the recommended gear oil.
10. Reconnect the fuel line and test the cooling system by running the engine with a flushing adapter or in a test tank. Verify steady water flow from the tell-tale (pilot hole).

Troubleshooting & FAQ

Q: How do I confirm this impeller fits my engine?
A: Cross-reference your engine's horsepower, model year, and original part number with the compatibility table above. You can also use the serial number guide linked in the compatibility section to identify your exact model.

Q: How often should I replace my water pump impeller?
A: Most manufacturers recommend replacing the impeller every 2–3 years or every 200–300 hours of operation, whichever comes first. If you frequently run in sandy or silty water, inspect and replace more often.

Q: What are the signs of a failing impeller?
A: Common symptoms include weak or no water flow from the tell-tale, engine overheating, steam from the powerhead, or a high-temperature alarm. Inspect the impeller immediately if you notice any of these issues.

Q: Can I use petroleum-based grease to lubricate the impeller during installation?
A: No. Petroleum-based products can damage the rubber and cause premature failure. Use only glycerin, soapy water, or water pump-specific lubricants.

Q: Is this an OEM part or 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.