Water Pump Impeller – Fits Johnson/Evinrude 85-125 HP (Replaces 385072, 383334, 777832, 384799)

Water Pump Impeller – Fits Johnson/Evinrude 85-125 HP (Replaces 385072, 383334, 777832, 384799)

This water pump impeller is designed for Johnson/Evinrude 85-125 HP, 4-cylinder, 2-Stroke outboard motors manufactured between 1969-1972.

It serves as a direct replacement for multiple Johnson/Evinrude and aftermarket part numbers, ensuring a precise fit and reliable performance for routine cooling system maintenance.

• Engineored for a direct OEM replacement fit.
• Constructed from durable neoprene rubber with a corrosion-resistant brass insert.
• Package includes one high-performance water pump 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 Serial Number Guide.

Technical Specifications

Package Contents

• 1 x Water Pump Impeller (Replaces 385072, 383334, 777832, 384799)

Installation Guide

1. Disconnect the battery and shift linkage before starting.
2. Loosen and remove the lower unit mounting bolts to carefully lower the gearcase.
3. Unbolt and remove the water pump housing to access the impeller.
4. Note the rotational direction of the old impeller's blades before removal.
5. Remove the old impeller, woodruff key, and any gaskets from the housing and driveshaft.
6. Thoroughly clean all mating surfaces of debris and corrosion.
7. Install new gaskets on the housing and wear plate. Insert the new woodruff key into the driveshaft.
8. Slide the new impeller onto the driveshaft, rotating it in the correct direction while lowering the housing over it.
9. Reinstall the water pump housing bolts and tighten them to the manufacturer's specified torque.
10. Carefully guide the lower unit back into place, ensuring the driveshaft and water tube align correctly.
11. Reinstall the lower unit bolts, reconnect the shift linkage, and reconnect the battery.
12. Attach a water supply and run the engine to verify proper water flow from the tell-tale outlet.

Troubleshooting & FAQ

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

A: Please review the "Compatible Engine Models" table on this page. This impeller is specifically for 85-125 HP, 4-cylinder, 2-stroke Johnson/Evinrude outboards from 1969-1972. You can also confirm by matching your engine's original part number to the cross-reference list, which includes 385072, 383334, 777832, and 384799.

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

A: Key symptoms include the engine overheating, a weak or intermittent water stream from the "telltale" outlet, or a complete lack of water flow. Upon inspection, a worn impeller may have blades that are cracked, brittle, stiff, or missing entirely.

Q: How often should I replace my water pump impeller?

A: For optimal engine protection, we recommend inspecting the impeller annually and replacing it every 1-2 years or 100-200 hours of operation, whichever occurs first. Regular replacement is critical preventative maintenance to avoid overheating.

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.