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.
Brand |
Part Number |
Johnson/Evinrude |
385072 / 0385072 |
Johnson/Evinrude |
383334 / 0383334 |
Johnson/Evinrude |
777832 / 0777832 |
Johnson/Evinrude |
384799 / 0384799 |
Sierra |
18-3044 |
Mallory |
9-45220 |
GLM |
89612 |
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.
Brand |
Model |
Rated HP |
Stroke |
Years |
OEM Part No. |
Notes |
Johnson/Evinrude |
4-cylinder |
85 |
2-Stroke |
1969-1972 |
385072 |
|
Johnson/Evinrude |
4-cylinder |
100 |
2-Stroke |
1969-1972 |
385072 |
|
Johnson/Evinrude |
4-cylinder |
115 |
2-Stroke |
1969-1972 |
385072 |
|
Johnson/Evinrude |
4-cylinder |
125 |
2-Stroke |
1969-1972 |
385072 |
|
Technical Specifications
Specification |
Value |
Product Type |
Water Pump Impeller |
Installation |
Direct OEM replacement |
Housing Material |
Neoprene rubber with brass insert |
Dimensions |
OD: 89 mm, ID: 19.13 mm, Width: 31.9 mm |
Number of Blades |
6 |
Key Type |
Uses key 47-01408 |
Other Technical Attributes |
Standard rotation |
Package Contents
- 1 x Water Pump Impeller (Replaces 385072, 383334, 777832, 384799)
Installation Guide
- Disconnect the battery and shift linkage before starting.
- Loosen and remove the lower unit mounting bolts to carefully lower the gearcase.
- Unbolt and remove the water pump housing to access the impeller.
- Note the rotational direction of the old impeller's blades before removal.
- Remove the old impeller, woodruff key, and any gaskets from the housing and driveshaft.
- Thoroughly clean all mating surfaces of debris and corrosion.
- Install new gaskets on the housing and wear plate. Insert the new woodruff key into the driveshaft.
- Slide the new impeller onto the driveshaft, rotating it in the correct direction while lowering the housing over it.
- Reinstall the water pump housing bolts and tighten them to the manufacturer's specified torque.
- Carefully guide the lower unit back into place, ensuring the driveshaft and water tube align correctly.
- Reinstall the lower unit bolts, reconnect the shift linkage, and reconnect the battery.
- 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.
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Fast Global Shipping: Free delivery worldwide in 5–15 days.
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Direct from Manufacturer: Competitive pricing without compromising quality.