Water Pump Kit with Housing – Fits Johnson/Evinrude 65-75 HP (Replaces 438602, 391634)
Water Pump Kit with Housing – Fits Johnson/Evinrude 65-75 HP (Replaces 438602, 391634) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Water Pump Kit with Housing – Fits Johnson/Evinrude 65-75 HP (Repla...
Product Details
This aftermarket Water Pump Kit with Housing is engineered for Johnson/Evinrude 65-75 HP V4 2-stroke outboard engines manufactured between 1980 and 1985. It provides a reliable solution for restoring your engine's cooling system performance.
It serves as a direct replacement for OEM part numbers 438602 and its superseded predecessor 391634, and is an interchange for The ROP Shop part 101395_1.
- Designed for direct OEM-replacement installation.
- Includes the complete water pump assembly with housing.
- Constructed from a durable blend of metal and plastic components.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Johnson/Evinrude | 438602 | Current OEM part number. |
| Johnson/Evinrude | 391634 | Superseded by 438602. |
| The ROP Shop | 101395_1 | Aftermarket cross-reference. |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This kit is specifically designed for select Johnson/Evinrude V4 outboards.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Johnson/Evinrude | V4 | 65 | 2-Stroke | 1980–1985 | 438602 | Replaces 391634 |
| Johnson/Evinrude | V4 | 70 | 2-Stroke | 1980–1985 | 438602 | Replaces 391634 |
| Johnson/Evinrude | V4 | 75 | 2-Stroke | 1980–1985 | 438602 | Replaces 391634 |
Technical Specs
- Product Type
- Water Pump Kit with Housing
- Installation
- Direct OEM replacement
- Fuel Type
- Gasoline (Petrol)
- Housing Material
- Metal/Plastic
- Dimensions
- Approximately 11 × 11 × 11 inches
- Weight
- Approximately 0.91 kg (2 pounds)
- Other Technical Attributes
- Complete water pump assembly with housing
What’s in the Box
- 1 x Water Pump Kit with Housing (Replaces 438602)
Installation Notes
- Disconnect the battery and spark plug wires for safety.
- Drain the gearcase lubricant from the lower unit.
- Remove the propeller assembly.
- Unbolt and carefully lower the gearcase from the engine's driveshaft housing.
- Remove the old water pump housing and all its internal components (impeller, gaskets, wear plate).
- Thoroughly clean all mating surfaces, ensuring they are free of old gasket material and corrosion.
- Install the new water pump kit components according to a service manual for your engine model.
- Lightly grease the impeller and inner housing before reassembly.
- Reinstall the gearcase, ensuring the water tube, driveshaft, and shift rod are correctly aligned.
- Refill the gearcase with the specified lubricant, torque all bolts to spec, and reinstall the propeller.
- Reconnect the battery and test the engine's cooling system on a water supply before use.
Troubleshooting & FAQ
How do I know if my water pump needs replacing?
Common signs of a failing water pump include a weak or non-existent water stream from the engine's "telltale" outlet, engine overheating alarms, and a dry, brittle, or cracked impeller found during inspection.
What is the recommended replacement interval?
For optimal reliability, inspect the impeller annually and replace the entire water pump kit every 2-3 years or 200-300 hours of use, whichever comes first. This can vary based on operating conditions (e.g., saltwater vs. freshwater).
Is this a complete kit?
Yes, this is a complete kit that includes the water pump housing, impeller, wear plate, gaskets, and seals required for a standard replacement.
My engine model is listed, but the year is different. Will it fit?
No. This kit is specifically designed for the models and years listed (1980–1985). Due to design changes across model years, using this kit on an engine outside the specified range may lead to improper fitment, cooling issues, or engine damage.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
Payment & Security
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