385072 Water Pump Impeller for Evinrude Johnson OMC BRP | JLM Marine

385072 Water Pump Impeller for Evinrude Johnson OMC BRP Outboard Engines

This water pump impeller with key/pin is designed for Evinrude, Johnson, OMC, and BRP outboard motors ranging from 85 HP to 125 HP with V4 and V6 engine configurations. Engineered to maintain optimal cooling performance, this impeller ensures reliable water circulation through your outboard's cooling system.

This aftermarket replacement directly replaces OEM part number 385072 / 0385072 and aftermarket equivalent 18-3044, providing a cost-effective solution for routine maintenance or emergency repairs.

• Complete assembly includes impeller with key/pin for immediate installation
• Precision-molded rubber construction for durability and consistent water flow
• Direct fit for 1971–1972 Evinrude and Johnson V4/V6 outboards

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 Rubber Impeller with Key/Pin

Installation Guide

1. Disconnect the fuel line and remove the spark plug wires to ensure the engine cannot start during service.
2. Remove the lower unit from the outboard motor according to your engine's service manual.
3. Locate and remove the water pump housing by taking out the retaining bolts. Keep track of all fasteners and washers.
4. Extract the old impeller from the pump housing, noting its orientation and the position of the key/pin.
5. Clean the pump housing thoroughly, removing any debris, corrosion, or old gasket material.
6. Lubricate the new impeller with water pump grease or soapy water to ease installation and prevent tearing.
7. Insert the key/pin into the drive shaft slot, ensuring it is seated properly.
8. Install the new impeller onto the shaft, rotating the blades in the correct direction (typically counterclockwise when viewed from above).
9. Reassemble the water pump housing, ensuring all gaskets are correctly positioned and the impeller blades are not pinched.
10. Reinstall the lower unit onto the outboard, torquing all bolts to manufacturer specifications.
11. Reconnect fuel lines and spark plug wires, then test the motor in a water tank or on muffs.
12. Verify water flow from the tell-tale (pilot hole) to confirm the impeller is functioning correctly.

Troubleshooting & FAQ

Q: How do I confirm this impeller fits my specific engine?
A: Cross-reference your engine's model number and year with the compatibility table above. If your engine is a 1971–1972 Evinrude or Johnson V4/V6 in the 85–125 HP range and uses OEM part 385072, this impeller will fit.

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 run in sandy or debris-filled water, inspect it annually.

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

Q: Can I install this impeller myself, or do I need a mechanic?
A: If you have basic mechanical skills and the proper tools, you can replace the impeller yourself following the installation guide. However, if you're unfamiliar with lower unit disassembly, professional installation is recommended.

Q: Is there any difference between this aftermarket impeller and the OEM version?
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.