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FLASHSALE26

Water Pump Repair Kit with Housing for Johnson/Evinrude 2-Stroke 35–60 HP

Regular price $62.00

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U.S. orders usually arrive within 6–15 days, depending on stock location and destination.


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If you have any questions, feel free to email us at info@seasierra.com, and we’ll get back to you within 20–36 hours.

Product Details

This aftermarket water pump repair kit with housing is designed for selected Johnson and Evinrude 2-stroke outboard engines with a small gearcase and small water pump. It includes the water pump housing assembly and impeller needed to service the cooling-water pump and help restore proper water circulation.

The compatible application range includes selected 35–60 HP Johnson/Evinrude outboards from the model years listed below. Because water-pump designs vary by gearcase and model year, compare your original part number and engine details before ordering.

  • Aftermarket replacement water pump service kit with housing
  • For selected 2-cylinder and 3-cylinder loop-charged Johnson/Evinrude outboards
  • Small gearcase and small water pump application
  • Impeller uses the plastic wedge-key configuration specified for this application
  • Not an OEM-branded component

Part Number References

These are customer-facing OEM and aftermarket reference numbers associated with this application. Reference numbers alone do not replace verification of the complete engine model and gearcase configuration.

Brand or Source Reference Number
Johnson/Evinrude/OMC 439077, 0439077, 396933, 0396933
Johnson/Evinrude/OMC 390770, 0390770, 391635, 0391635
Johnson/Evinrude/OMC 396932, 0396932, 777808, 0777808
Sierra 18-3399
GLM Marine 12210
SEI Marine 96-365-01BK
OBR JE-204
Mallory Marine 9-48204, 9-48207

Engine Compatibility

This listing covers the following Johnson/Evinrude 2-stroke outboard ranges for this water-pump configuration:

Brand Rated HP Stroke Model Years Application Notes
Johnson/Evinrude 35 HP 2-Stroke 1986–1987 Selected small-gearcase applications
Johnson/Evinrude 40 HP 2-Stroke 1984–1988 Selected small-gearcase applications
Johnson/Evinrude 45 HP 2-Stroke 1986–1994 Selected small-gearcase applications
Johnson/Evinrude 48 HP 2-Stroke 1987–1988 Selected small-gearcase applications
Johnson/Evinrude 50 HP 2-Stroke 1979–1988 Selected small-gearcase applications
Johnson/Evinrude 55 HP 2-Stroke 1979–1994 Selected small-gearcase applications
Johnson/Evinrude 60 HP 2-Stroke 1980–1985 Selected small-gearcase applications

Technical Specifications

Product Type
Aftermarket water pump repair kit with housing
Engine Type
Selected Johnson/Evinrude 2-stroke outboard engines
Application
Small gearcase with small water pump
Impeller Key Configuration
Plastic wedge key
Rated Horsepower Range
35–60 HP, subject to the model-year and application limits above
Housing Included
Yes, for the water-pump service-kit configuration described on this page
Brand Status
Aftermarket replacement; not an OEM-branded component

What's in the Box

  • 1 × Water pump housing assembly
  • 1 × Water pump impeller

Other small hardware or sealing components may vary by production batch. Confirm the supplied components against your original water-pump assembly before installation.

Installation Notes

  1. Confirm the complete engine model, horsepower, model year, gearcase type, and original water-pump reference number before beginning work.
  2. Disconnect the battery and follow the outboard manufacturer's safety procedures.
  3. Remove the lower unit according to the applicable service manual.
  4. Remove the old water-pump housing, impeller, gasket or seal components, and key as required.
  5. Clean the mating surfaces and inspect the driveshaft, water tube, keyway, and pump plate for wear or damage.
  6. Install the replacement impeller with the plastic wedge key correctly positioned. Do not force the impeller or install it with the key misaligned.
  7. Install the housing and remaining components in the correct orientation, then reinstall the lower unit.
  8. Run the engine only with an appropriate water supply and confirm a strong cooling-water discharge before normal operation.

Use the manufacturer's service manual for torque values, sealant requirements, lower-unit removal procedures, and final testing instructions.

Troubleshooting & FAQ

How do I confirm fitment?

Match your engine brand, horsepower, model year, complete model designation, gearcase configuration, and original water-pump reference number. The reference numbers and application ranges on this page are for selected engines, not every Johnson/Evinrude 35–60 HP outboard.

Does this kit include the housing?

Yes. This listing is for the water pump repair-kit configuration with housing and includes a water pump housing assembly and impeller. Verify the supplied parts against your original assembly before installation.

What does a failing water pump impeller look like?

Common symptoms include weak or absent water flow from the telltale, overheating at idle or under load, and an impeller that is cracked, hardened, deformed, or missing vanes. A blocked water passage or damaged housing can cause similar symptoms.

Should the impeller be replaced as routine maintenance?

The impeller is a wear component. Inspect it during scheduled cooling-system service and replace it when damaged, hardened, deformed, or otherwise worn. Follow the maintenance interval in your engine manufacturer's service information.

Is this an OEM part?

No. This is an aftermarket replacement kit cross-referenced to the OEM and aftermarket numbers listed above. Johnson, Evinrude, OMC, Sierra, GLM, SEI Marine, OBR, and Mallory are referenced only for identification and compatibility purposes.

Safety & Important Information

  • Confirm the exact engine model, year, horsepower, gearcase, and reference number before ordering.
  • Do not rely on horsepower alone to determine fitment.
  • Never operate an outboard without an adequate cooling-water supply.
  • Stop operation immediately if the engine overheats or the telltale flow is weak or absent.
  • Professional installation is recommended if you are unfamiliar with lower-unit or water-pump service.

About Sea Sierra

  • Marine Replacement Parts — We supply aftermarket components for common outboard service applications.
  • Application-Focused Listings — Product pages identify model, year, horsepower, stroke, and reference-number conditions where available.
  • Practical Maintenance Support — Follow the applicable service manual and verify the original component before installation.

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