Water Pump Impeller for Evinrude/Johnson 2–4 HP Outboards – Replaces 0396852, 0433935, 0767407, 0769221
Water Pump Impeller for Evinrude/Johnson 2–4 HP Outboards – Replaces 0396852, 0433935, 0767407, 0769221 is backordered and will ship as soon as it is back in stock.
Worry-free returns
Worry-free returns
Shop with confidence. If you’re not completely satisfied, eligible items may be returned within the return window, provided they are unused and in original packaging.
If the return is due to our error or a defective item, we’ll make it right.
Please contact us before returning any item.
Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
International delivery times may vary due to customs processing.
Tracking information will be provided once your order ships.
Water Pump Impeller for Evinrude/Johnson 2–4 HP Outboards – Replace...
Water Pump Impeller for Evinrude/Johnson 2–4 HP Outboards – Replaces 0396852, 0433935, 0767407, 0769221 is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket water pump impeller is designed for selected Evinrude and Johnson outboards rated from 2 to 4 HP. It supports the engine cooling system by circulating water through the water pump and should be replaced when worn, damaged, or as part of routine cooling-system maintenance.
The listed applications include 2 HP, 2.5 HP, 3 HP, 3.5 HP, and 4 HP Evinrude/Johnson outboards within the model and year ranges shown below. Always compare your engine model, year, serial information, and original impeller before ordering.
- Aftermarket replacement water pump impeller.
- For selected Evinrude/Johnson outboards from 2 to 4 HP.
- Reference numbers include 0396852, 0433935, 0767407, 0769221, 396852, 433935, 767407, and 769221.
- Aftermarket references include Sierra Marine 18-3015 and CEF 500332.
- Sold as one impeller; pump housing, wear plate, gaskets, and other service parts are not included unless specifically stated.
Part Number Matrix
Use these customer-facing manufacturer and aftermarket references when comparing your original part. Part-number references do not replace verification of the complete engine application.
| Reference Type | Part Number |
|---|---|
| Evinrude/Johnson/OMC/BRP reference | 0396852 |
| Evinrude/Johnson/OMC/BRP reference | 0433935 |
| Evinrude/Johnson/OMC/BRP reference | 0767407 |
| Evinrude/Johnson/OMC/BRP reference | 0769221 |
| Evinrude/Johnson/OMC/BRP reference | 396852 |
| Evinrude/Johnson/OMC/BRP reference | 433935 |
| Evinrude/Johnson/OMC/BRP reference | 767407 |
| Evinrude/Johnson/OMC/BRP reference | 769221 |
| Sierra Marine aftermarket reference | 18-3015 |
| CEF aftermarket reference | 500332 |
Engine & Model Compatibility
The following applications are listed for this impeller. Keep the horsepower, model family, and year range together when checking fitment.
| Brand | Rated HP | Year Range | Stroke/Application | Model Notes |
|---|---|---|---|---|
| Evinrude/Johnson | 2 HP | 2001 | Verify against the engine model | Use the exact model and serial information for confirmation. |
| Evinrude/Johnson | 2.5 HP | 1987–1988 | Verify against the engine model | Keep the year range and horsepower together. |
| Evinrude/Johnson | 3 HP | 1989–1997 | Verify against the engine model | Keep the year range and horsepower together. |
| Evinrude/Johnson | 3.5 HP | 2002–2006 | Verify against the engine model | Keep the year range and horsepower together. |
| Evinrude/Johnson | 4 HP | 1987–2006 | Ultra and Excel models | Confirm the Ultra or Excel model designation before ordering. |
Technical Specifications
- Product Type
- Water pump impeller
- Application
- Evinrude/Johnson outboard cooling systems
- Rated Engine Range
- 2–4 HP, within the listed model and year applications
- Brand Application
- Evinrude / Johnson Outboard
- Product Construction
- Aftermarket replacement component
- Installation
- Direct replacement for the corresponding water pump impeller application
What's in the Box
- 1 × Water pump impeller
This listing is for the impeller only. A drive key, gaskets, seals, water pump housing, wear plate, and other service components are not included unless separately specified.
Installation Notes
- Stop the engine, remove the ignition key, and follow the manufacturer's safety procedures.
- Remove the lower unit according to the service instructions for your exact outboard model.
- Remove the water pump housing and inspect the housing, wear plate, key, and seals.
- Remove the old impeller and clean debris from the water pump area.
- Replace worn or damaged related components before installing the new impeller.
- Install the impeller on the driveshaft with the original key correctly seated, if applicable to your model.
- Lubricate the impeller and housing with a suitable water-based lubricant during installation; do not use petroleum-based products on rubber components.
- Rotate the driveshaft in the manufacturer's specified direction while seating the pump housing so the vanes bend correctly.
- Reassemble the water pump and reinstall the lower unit using the correct torque and sealing procedures.
- Test for a strong cooling-water flow and verify that the engine does not overheat before returning it to normal operation.
Troubleshooting & FAQ
How do I know if the water pump impeller needs replacement?
Common symptoms include weak or missing tell-tale water flow, overheating, an overheating warning, or visible damage to the old impeller. Sand, debris, saltwater exposure, and extended storage can accelerate wear.
Will this fit every 2–4 HP Evinrude or Johnson outboard?
No. Fitment is limited to the horsepower and year applications listed on this page. Confirm the exact model, year, serial information, and original part number before ordering.
Is this impeller for a 4-stroke engine?
The company application record includes a general water-pump-impeller category, but the documented model and year applications on this page should be used as the fitment authority. Do not assume compatibility with an unlisted 4-stroke model.
Are the key and gaskets included?
No additional pump hardware is specified in this package. The box contains one impeller only; inspect and replace the key, gaskets, seals, or other service parts separately when required by your engine.
Is this an OEM part?
No. This is an aftermarket replacement impeller listed for the referenced Evinrude/Johnson applications. Evinrude, Johnson, OMC, BRP, Sierra Marine, and CEF reference numbers are used only to help identify the corresponding application.
How often should an impeller be replaced?
Replacement intervals depend on the engine manufacturer's maintenance schedule and operating conditions. Inspect the impeller regularly and replace it sooner if the engine has been run dry, used in sandy or silty water, or shows reduced cooling-water flow.
Safety & Important Information
- Verify the complete engine model, year, serial information, and original impeller before purchase.
- Do not operate an outboard without confirming adequate cooling-water flow.
- Never run the engine without the proper water supply and follow the manufacturer's testing procedure.
- Professional installation is recommended if you are not familiar with lower-unit or water-pump service.
- Reference numbers identify applications and are not a guarantee of fit without model verification.
About Sea Sierra
- Marine Replacement Parts — We provide aftermarket components for common marine service and repair applications.
- Application-Focused Listings — Product pages include available model, year, horsepower, and reference-number information to support fitment checks.
- Practical Service Support — Confirm your engine details and compare the original component before installation.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
