Water Pump Impeller Service Kit Without Housing – Fits Johnson/Evinrude 85-300 HP V4/V6/V8 2-Stroke Outboards
Water Pump Impeller Service Kit Without Housing – Fits Johnson/Evinrude 85-300 HP V4/V6/V8 2-Stroke Outboards is backordered and will ship as soon as it is back in stock.
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Water Pump Impeller Service Kit Without Housing – Fits Johnson/Evin...
Water Pump Impeller Service Kit Without Housing – Fits Johnson/Evinrude 85-300 HP V4/V6/V8 2-Stroke Outboards is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket Water Pump Impeller Service Kit Without Housing is designed for a broad range of Johnson/Evinrude 2-stroke V4, V6, and V8 outboard applications from 85 to 300 HP. The service kit is supplied without the water pump housing, so reuse your serviceable original housing or obtain a separate housing when required.
Application coverage includes selected OMC Johnson/Evinrude outboards from 1979 and later, including 90/115 HP looper models from 1995–2006 except SL models, and V4, V6, and V8 models with the applicable driveshaft and model conditions described below. Always compare the complete engine model, year, shaft length, and suffix before ordering.
- Service replacement for the water pump impeller and related sealing components.
- Plastic wedge-key impeller configuration as listed for the applicable applications.
- Designed for use with the original pump housing; the housing is not included.
- Aftermarket replacement, not a genuine Johnson/Evinrude OEM component.
Part Number Matrix
The following manufacturer and aftermarket numbers are reference numbers associated with this service-kit application. Number co-occurrence does not replace verification of the engine model and shaft conditions.
| Brand or source | Reference number | Notes |
|---|---|---|
| Johnson/Evinrude | 434421, 0434421 | Manufacturer reference numbers listed for this application |
| Johnson/Evinrude | 395062, 0395062 | Manufacturer reference numbers listed for this application |
| Johnson/Evinrude | 435447, 0435447 | Manufacturer reference numbers listed for this application |
| Johnson/Evinrude | 395072 | Manufacturer reference number listed for this application |
| Johnson/Evinrude | 395060, 0395060 | Manufacturer reference numbers listed for this application |
| Johnson/Evinrude | 393082, 0393082 | Manufacturer reference numbers listed for this application |
| Johnson/Evinrude | 392750, 0392750 | Manufacturer reference numbers listed for this application |
| Johnson/Evinrude | 391637, 0391637 | Manufacturer reference numbers listed for this application |
| Johnson/Evinrude | 390768, 0390768 | Manufacturer reference numbers listed for this application |
| Johnson/Evinrude | 777800, 0777800 | Manufacturer reference numbers listed for this application |
| Sierra Marine | 18-3390, 18-3392 | Aftermarket reference numbers |
| GLM Marine | 12102, 12101 | Aftermarket reference numbers |
| Mallory Marine | 9-48203, 9-48210 | Aftermarket reference numbers |
| SEI Marine | 96-306-01AK | Aftermarket reference number |
Important: Johnson/Evinrude 5001594 is associated with a housing-equipped version in catalog references. This listing is the service-kit version without the housing and should not be assumed to include that housing.
Engine & Model Compatibility
Fitment is dependent on the complete engine configuration. Confirm the model designation, production year, horsepower, stroke, cylinder layout, shaft length, and suffix before purchase.
| Brand | Engine or model group | Rated HP | Stroke | Years or condition | Fitment notes |
|---|---|---|---|---|---|
| Johnson/Evinrude | V4, V6, and V8 outboards | 85–300 HP | 2-Stroke | 1979 and later | Use the exact model and year to confirm application. |
| Johnson/Evinrude | V4, V6, and V8 models | — | 2-Stroke | 1982–1994 | Broad model-group coverage listed by the manufacturer data. |
| Johnson/Evinrude | 90/115 HP Looper | 90–115 HP | 2-Stroke | 1995–2006 | Except SL models. |
| Johnson/Evinrude | Standard outboard applications | 90, 100, 115, 140, 150, 175, 235, 250, and 300 HP | 2-Stroke | 1979 and later | Verify the exact engine model and driveshaft configuration. |
| Johnson/Evinrude | Commercial model | 100 HP | 2-Stroke | 1984 and later | Commercial application listed in the manufacturer data. |
| Johnson/Evinrude | V4, V6, and V8 models | 130, 135, 150, and 225 HP | 2-Stroke | 1993 and later | 20-inch driveshaft condition applies. |
| Johnson/Evinrude | V4, V6, and V8 models | 125 HP | 2-Stroke | 1993 and later | 25-inch driveshaft and S-suffix model condition applies. |
| Johnson/Evinrude | V4, V6, and V8 models | 90–115 HP | 2-Stroke | 1979–2006 | 20-inch shaft applications are listed; exclude SL models where specified. |
Technical Specifications
- Product type
- 2-stroke water pump impeller service kit
- Housing
- Not included; this listing is the version without the water pump housing
- Impeller configuration
- Plastic wedge-key type for the applicable applications
- Application
- Selected Johnson/Evinrude V4, V6, and V8 outboards
- Horsepower range
- 85–300 HP, subject to the model, year, shaft, and suffix conditions above
- Stroke
- 2-Stroke
- Brand status
- Aftermarket replacement; not OEM
What’s in the Box
- Water pump impeller
- Wedge key for the applicable impeller configuration
- Service gaskets and sealing components as supplied for the application
- Water pump housing is not included
Package components can vary by application and production batch. Compare the supplied parts with the original assembly before installation.
Installation Notes
- Confirm that the engine is switched off, cool, and safely supported. Disconnect the battery where appropriate.
- Remove the lower unit according to the engine manufacturer's service procedure.
- Remove the existing pump cover or housing and inspect it for scoring, distortion, corrosion, or excessive wear. Do not reuse a damaged housing.
- Remove the old impeller, key, gaskets, and sealing components. Clean the mating surfaces and driveshaft area thoroughly.
- Install the applicable key and impeller, using the correct rotational direction for the engine.
- Install the replacement gaskets and seals. Reuse the original housing only if it is serviceable and compatible with the application.
- Reinstall the lower unit, ensuring correct alignment of the driveshaft, shift shaft, and water tube.
- Run the engine only in an appropriate water supply or test tank and verify a steady cooling-water tell-tale stream before normal operation.
Follow the engine manufacturer's torque values and service instructions. Professional installation is recommended if you are not experienced with outboard lower-unit service.
Troubleshooting & FAQ
Does this kit include the water pump housing?
No. This listing is the service-kit version without the housing. Inspect your original housing and replace it separately if it is worn or damaged.
What are the signs of a failing water pump impeller?
Common signs include a weak or intermittent tell-tale stream, overheating warnings, reduced cooling performance, or an impeller with cracked, brittle, broken, or permanently deformed blades.
Will this fit every Johnson/Evinrude 85–300 HP outboard?
No. The horsepower range is only a starting point. Fitment also depends on the exact model, production year, V4/V6/V8 configuration, shaft length, model suffix, and whether the engine is an SL or other excluded configuration.
Will this fit a Johnson/Evinrude SL model?
The listed 90/115 HP looper coverage specifically excludes SL models. Verify the exact model designation before ordering.
Is this an OEM part?
No. This is an aftermarket replacement service kit intended to correspond to the listed manufacturer and aftermarket reference numbers.
How often should the impeller be replaced?
Replacement intervals depend on engine use, storage, water conditions, and the engine manufacturer's maintenance schedule. Inspect the impeller during scheduled service and replace it sooner if cooling performance declines or the impeller shows wear.
Safety & Important Information
- Verify the full engine model, year, horsepower, stroke, shaft length, and suffix before ordering.
- Confirm that your original pump housing is compatible and serviceable; the housing is not included.
- Do not operate an outboard without an adequate cooling-water supply.
- Use the engine manufacturer's service manual for torque values and installation procedures.
- This is an aftermarket replacement, not a genuine Johnson/Evinrude OEM component.
About Sea Sierra
- Marine Replacement Parts — We supply aftermarket service components for common marine maintenance applications.
- Application-Focused Information — Product listings identify model, year, shaft, and configuration conditions where available.
- Support for Fitment Checks — Compare your original part and complete engine model before placing an order.
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