Water Pump Service Kit for Johnson/Evinrude 3-Cylinder 60–75 HP Outboards with Large Gearcase
Water Pump Service Kit for Johnson/Evinrude 3-Cylinder 60–75 HP Outboards with Large Gearcase is backordered and will ship as soon as it is back in stock.
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Water Pump Service Kit for Johnson/Evinrude 3-Cylinder 60–75 HP Out...
Water Pump Service Kit for Johnson/Evinrude 3-Cylinder 60–75 HP Outboards with Large Gearcase is backordered and will ship as soon as it is back in stock.
Product Details
This water pump service kit is designed for selected Johnson/Evinrude three-cylinder outboard applications using the large gearcase water-pump configuration. It is intended to restore water-pump service components and support proper engine cooling on compatible two-stroke and listed four-stroke models.
The applicable large-gearcase configuration uses a water-pump impeller with a plastic wedge key. Confirm the engine's cylinder count, horsepower, model year, gearcase size, and existing impeller/key arrangement before ordering.
- Product Type: Water pump service kit
- Application: Johnson/Evinrude outboard water-pump service
- Gearcase Configuration: Large gearcase on the listed applications
- Impeller Key Configuration: Plastic wedge key
- Installation: Replacement service components for the existing water-pump assembly
Part Number Matrix
The following manufacturer and aftermarket references are listed for cross-reference purposes. Confirm the exact number and water-pump configuration against your engine before installation.
| Brand | Part Number |
|---|---|
| Johnson/Evinrude | 0432955 |
| Johnson/Evinrude | 0438591 |
| Johnson/Evinrude | 0436954 |
| Johnson/Evinrude | 0436955 |
| Johnson/Evinrude | 0435673 |
| Johnson/Evinrude | 0389142 |
| Johnson/Evinrude | 0391049 |
| Johnson/Evinrude | 0432956 |
| Johnson/Evinrude | 0777804 |
| Johnson/Evinrude | 0436957 |
| Johnson/Evinrude | 0319277 |
| Johnson/Evinrude | 0390011 |
| Johnson/Evinrude | 0438602 |
| Johnson/Evinrude | 0778274 |
| Johnson/Evinrude | 0391634 |
| Johnson/Evinrude | 0396726 |
| Sierra Marine | 18-3387 |
| Sierra Marine | 18-3389 |
| Sierra Marine | 18-3129 |
| Mallory Marine | 9-48213 |
| GLM | 12246 |
Engine & Model Compatibility
Fitment is limited to the listed Johnson/Evinrude applications and the matching water-pump configuration. Model, year, cylinder count, gearcase, and stroke conditions must be considered together.
| Brand | Engine Configuration | Rated HP | Stroke | Years | Gearcase / Notes |
|---|---|---|---|---|---|
| Johnson/Evinrude | 3-cylinder outboard | 60 | 2-Stroke | 1989–2001 | Listed application |
| Johnson/Evinrude | 3-cylinder outboard | 60 | 4-Stroke | 1998 and newer | Listed application |
| Johnson/Evinrude | 3-cylinder outboard | 65 | 2-Stroke | 1979–2001 | Large gearcase application |
| Johnson/Evinrude | 3-cylinder outboard | 70 | 2-Stroke | 1979–1994 | Large gearcase application |
| Johnson/Evinrude | 3-cylinder outboard | 70 | 4-Stroke | 1998 and newer | Listed application |
| Johnson/Evinrude | 3-cylinder outboard | 75 | 2-Stroke | 1979–1988 | Large gearcase application |
| Johnson/Evinrude | 3-cylinder loopcharged outboard | 65, 70, 75 | 2-Stroke | 1986–2001 | Large gearcase; plastic wedge-key impeller configuration |
Technical Specs
- Product Type
- Water pump service kit
- Application
- Johnson/Evinrude outboard water-pump service
- Engine Configuration
- Selected three-cylinder 60–75 HP applications
- Stroke Coverage
- Listed 2-stroke applications plus specified 4-stroke applications from 1998 and newer
- Gearcase Configuration
- Large gearcase on the applicable 65, 70, and 75 HP configurations
- Impeller Key Configuration
- Plastic wedge key
- Brand
- Evinrude / Johnson Outboard
What’s in the Box
This listing is for a water pump service kit. The company catalog identifies the product as a water-pump kit and lists configurations with and without a housing. Package contents can depend on the supplied configuration, so compare the kit components with the existing water-pump assembly before installation.
- Water-pump service components applicable to the listed configuration
- Impeller/key arrangement for the compatible large-gearcase application
- Housing inclusion should be confirmed against the product configuration and the existing assembly before ordering
Installation Notes
- Disconnect the battery and remove the ignition key before beginning work.
- Place the outboard gear selector in neutral and follow the engine service manual for lower-unit removal.
- Remove the lower unit and expose the water-pump assembly.
- Remove the existing pump components and clean the mating surfaces thoroughly.
- Confirm that the replacement impeller, plastic wedge key, plate, seals, and housing configuration match the original assembly.
- Install the impeller with the wedge key correctly positioned and orient the impeller vanes as specified by the service manual.
- Install the applicable gaskets, seals, plate, and housing components included with the supplied configuration.
- Tighten fasteners according to the engine manufacturer's torque specifications.
- Reinstall the lower unit, ensuring correct driveshaft and shift-shaft alignment.
- Test the engine with an adequate water supply and verify a strong cooling-water discharge before normal operation.
Troubleshooting & FAQ
How do I know if this service kit fits my engine?
Check the brand, three-cylinder configuration, horsepower, year, stroke, gearcase size, and impeller-key arrangement together. This product is intended for the Johnson/Evinrude applications listed above, including selected 60–75 HP large-gearcase configurations.
What does the large-gearcase reference mean?
The large-gearcase reference identifies the water-pump configuration used on the applicable 65, 70, and 75 HP three-cylinder engines. Do not select this kit solely by horsepower; compare the gearcase and existing pump components as well.
What are the signs of a failing water-pump impeller?
Common symptoms include overheating, a weak cooling-water stream, reduced water flow at idle, or visible cracking, brittleness, distortion, or missing vanes when the impeller is inspected.
Is the housing included?
The company catalog identifies both water-pump service-kit configurations with and without a housing. Confirm the supplied configuration and compare it with your existing assembly before ordering; do not assume housing inclusion from a cross-reference number alone.
What tools are needed for installation?
Typical installation requires a socket and wrench set, suitable screwdrivers, a gasket scraper or plastic blade, marine-grade grease where specified, and a torque wrench. Always follow the engine service manual.
Is this an OEM component?
This is an aftermarket water-pump service kit. The listed OEM and aftermarket numbers are provided as cross-reference information; the kit is not represented as an original Johnson/Evinrude component.
How often should the water-pump service components be replaced?
Replacement intervals depend on the engine manufacturer's maintenance schedule and operating conditions. Inspect the pump regularly and replace components sooner if the engine operates in sand, silt, salt water, or other abrasive conditions.
What should I do if the replacement parts do not match?
Stop installation and verify the complete engine model, year, horsepower, stroke, cylinder count, gearcase, and impeller-key arrangement. Do not force mismatched components into the water-pump assembly.
Safety & Important Info
- Verify the complete engine model and water-pump configuration before purchase.
- Compare the replacement components with the original assembly, especially the large gearcase and plastic wedge-key arrangement.
- Do not operate the engine without an adequate cooling-water supply.
- Follow the engine manufacturer's service manual for lower-unit removal, sealant use, torque values, and final testing.
- Professional installation is recommended if you are unfamiliar with outboard lower-unit or water-pump service.
About Sea Sierra
- Marine replacement parts selected for practical service and repair applications.
- Clear cross-reference information to help customers compare compatible engine configurations.
- Support for routine outboard maintenance and water-pump service needs.
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