Water Pump Impeller – Fits Evinrude Johnson OMC 85-125 HP (1969-1972) (Replaces 0385072)

Water Pump Impeller – Fits Evinrude Johnson OMC 85-125 HP (1969-1972) (Replaces 0385072)

This genuine OEM-compatible marine water pump impeller fits Evinrude and Johnson outboards in the 85 HP (1969-1972) and 100-125 HP (1971-1972) range. As an essential component of the cooling system, it is responsible for pumping raw water through the engine to maintain optimal operating temperature and prevent overheating.

This component directly replaces Johnson/Evinrude part numbers 0385072, 0383334, 0384799, and 0777832.

• Installation Location: Lower Unit / Gearcase
• Fuel Compatibility: For use in gasoline engines
• Core Component: Includes one neoprene rubber and metal hub impeller

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 (0385072)

Explosion Diagram

Installation Guide

1. Safety First: Disconnect the engine's battery before starting work.
2. Access the Lower Unit: Unbolt and carefully lower the gearcase (lower unit) from the outboard's main leg.
3. Open the Pump Housing: Locate the water pump assembly on top of the gearcase and remove the bolts securing its cover.
4. Remove Old Impeller: Take out the old impeller, paying close attention to the direction its blades are facing.
5. Clean and Inspect: Thoroughly clean the inside of the pump housing and inspect the housing, plate, and seals for scoring, warping, or damage.
6. Install New Impeller: Apply a light coat of marine grease to the housing interior and slide the new impeller in while turning the driveshaft clockwise to bend the blades in the correct direction.
7. Reassemble: Secure the water pump cover, ensuring any gaskets are properly aligned.
8. Reinstall Lower Unit: Mount the gearcase back onto the outboard, making sure the driveshaft and shift linkage are correctly engaged.
9. Test Operation: Reconnect the battery, supply water to the engine using muffs or by submerging the lower unit, and run the engine to confirm a strong water stream from the tell-tale outlet.

Troubleshooting & FAQ

Q: How do I confirm this impeller fits my Evinrude/Johnson engine?

A: Check your engine's model, horsepower, and year against the "Compatible Engine Models" table. Verifying your current part number against the "Part Number Cross-Reference" is the most reliable method. The critical dimensions are A: 19.15mm (Shaft), B: 89mm (Overall Diameter), C: 31.9mm (Height).

Q: What are the signs of a failing water pump impeller?

A: Common signs include the engine overheating, a weak or non-existent water stream from the "tell-tale" outlet, or visible cracks and damage on the impeller blades upon inspection.

Q: How often should I replace my outboard's impeller?

A: It is generally recommended to inspect the impeller annually and replace it every 1-2 years or every 100-200 hours of use, depending on operating conditions (e.g., saltwater vs. freshwater).

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.