Water Pump Repair Kit – Fits Evinrude/Johnson 4–8 HP Outboards
Water Pump Repair Kit – Fits Evinrude/Johnson 4–8 HP Outboards is backordered and will ship as soon as it is back in stock.
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Water Pump Repair Kit – Fits Evinrude/Johnson 4–8 HP Outboards
Water Pump Repair Kit – Fits Evinrude/Johnson 4–8 HP Outboards is backordered and will ship as soon as it is back in stock.
Product Details
This water pump repair kit is designed for selected Evinrude and Johnson outboard cooling-system applications. It helps service the water pump and restore dependable cooling-water circulation on compatible 2-stroke and 4-stroke engines.
The listed OEM and aftermarket references include OMC/Johnson/Evinrude numbers 0389844, 0396644, 396644, 389844, 765603, and 0765603, Sierra 18-4529, and GLM Marine 12065. Reference numbers must be matched with the complete engine model and year before ordering.
- Product type: Water pump repair/service kit
- Installation method: Replacement service part
- Application: Evinrude/Johnson outboard water pump systems
- Housing inclusion: Confirm the supplied configuration and package image before purchase
Part Number Matrix
Use the following references to compare the required water pump repair kit across manufacturer and aftermarket catalogs. A reference number alone does not confirm fitment for every engine.
| Brand or source | Reference number |
|---|---|
| OMC / Johnson / Evinrude | 0389844 |
| OMC / Johnson / Evinrude | 0396644 |
| OMC / Johnson / Evinrude | 396644 |
| OMC / Johnson / Evinrude | 389844 |
| OMC / Johnson / Evinrude | 765603 / 0765603 |
| Sierra | 18-4529 |
| GLM Marine | 12065 |
Engine & Model Compatibility
Compatibility is based on the company fitment records for this product. Keep the horsepower, stroke type, model designation, and model year together when checking your engine. If any of these details differ, verify the application before installation.
| Brand | Engine application | Rated HP | Stroke | Years or model condition | Associated reference |
|---|---|---|---|---|---|
| Evinrude / Johnson | Deluxe models | 4 HP | 2-Stroke | Model-specific; verify exact model and year | 0396644 / 396644 family |
| Evinrude / Johnson | Outboard models | 4.5 HP | 2-Stroke | 1980–1997 | 0396644 / 396644 family |
| Evinrude / Johnson | Outboard models | 6 HP | 2-Stroke | 1984–1997 | 0396644 / 396644 family |
| Evinrude / Johnson | Outboard models | 8 HP | 2-Stroke | 1986–1997 | 0396644 / 396644 family |
| Evinrude / Johnson | Outboard models | 5 HP | 4-Stroke | 1998–2001 | 0396644 / 396644 family |
| Evinrude / Johnson | Outboard models | 6 HP | 4-Stroke | 1998–2004 | 0396644 / 396644 family |
Technical Information
- Product type
- Water pump repair/service kit
- Application
- Selected Evinrude and Johnson outboard water pump systems
- Stroke coverage
- Specified 2-stroke and 4-stroke applications listed above
- Fitment requirement
- Match the complete engine model, horsepower, stroke type, and year
- Brand status
- Aftermarket replacement part; not an OEM-manufactured component
What’s in the Box
This listing is for one water pump repair/service kit. The exact component selection and whether a housing is included depend on the supplied kit configuration; confirm the product image and package contents before installation. Do not assume that separate impeller, gasket, key, plate, or housing component numbers are included unless they are shown with the kit.
Installation Notes
- Confirm the complete engine model, horsepower, stroke type, and year before beginning work.
- Disconnect the battery and remove or secure the spark plug leads according to the engine manufacturer's service procedure.
- Position the outboard securely and remove the lower unit following the applicable service-manual instructions.
- Remove the water pump cover and inspect the existing impeller, key, plate, gaskets, and related sealing surfaces.
- Clean the mating surfaces and compare the replacement parts with the removed components before assembly.
- Install the supplied service components in the correct order. Set the impeller vanes in the direction specified by the engine manufacturer.
- Reassemble the water pump and lower unit using the correct tightening sequence and torque specifications for the engine.
- Run the engine only with an appropriate water supply and confirm a strong cooling-water discharge before returning it to service.
Troubleshooting & FAQ
How do I confirm that this repair kit fits my motor?
Match the engine brand, exact model designation, horsepower, stroke type, and year with the compatibility information above. Then compare the old part number with the listed references, including 0396644, 396644, Sierra 18-4529, or GLM 12065. When details do not match, consult the engine service documentation before ordering.
What are common signs of a worn water pump service kit?
Possible signs include overheating, reduced cooling-water flow from the telltale outlet, intermittent water flow, or a damaged, brittle, or distorted impeller. Inspect the complete pump assembly to identify the cause before replacing parts.
Does this kit include the water pump housing?
The company records identify this SKU as a water pump service/repair kit and reference configurations with and without a housing. Confirm the supplied product image and package contents for the specific item before purchase; the housing should not be assumed to be included.
Can I install the kit myself?
Installation requires removal of the lower unit and correct water-pump assembly. It may be suitable for an experienced technician with the proper tools and service information, but professional installation is recommended if you are unfamiliar with outboard lower-unit service.
Is this an OEM part?
No. This is an aftermarket replacement kit that is cross-referenced to the listed OMC/Johnson/Evinrude, Sierra, and GLM references. Brand names and part numbers are used for identification and fitment comparison.
Safety & Important Information
- Verify the exact engine model, horsepower, stroke type, and year before ordering.
- Do not operate an outboard without an adequate cooling-water supply.
- Use the engine manufacturer's service procedure and torque specifications during installation.
- Stop operation immediately if the engine overheats or cooling-water flow is weak after installation.
- This is an aftermarket replacement product, not an OEM component.
About Sea Sierra
- Marine Replacement Parts — We supply replacement components for common marine service applications.
- Fitment-Focused Listings — Product information is organized around engine model, horsepower, stroke type, year, and reference numbers.
- Practical Service Support — Always compare the existing component and consult the applicable service documentation before installation.
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