Water Pump Repair Kit – Fits Johnson/Evinrude V4 V6 V8 85-300HP (Replaces 5001594)
Water Pump Repair Kit – Fits Johnson/Evinrude V4 V6 V8 85-300HP (Replaces 5001594) is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
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 Repair Kit – Fits Johnson/Evinrude V4 V6 V8 85-300HP (Re...
Product Details
This Water Pump Repair Kit – Fits Johnson/Evinrude V4 V6 V8 85-300HP (Replaces 5001594) is a complete assembly for maintaining your outboard engine's cooling system. It is designed to fit a wide range of Johnson/Evinrude V4, V6, and V8 outboard engines from 85 HP to 300 HP, covering models from 1979 to 2006. It may also serve as a replacement for Mercury Marine part number 8M6012792 on select models.
This kit provides a direct interchange for Johnson/Evinrude 5001594/0777800/0434421, GLM 12101, Mallory 9-48210, Sierra 18-3390, and others, ensuring a precise fit and restoring cooling performance.
- Engineered for direct OEM replacement installation.
- Housing is constructed from durable Nylon PA66 Plastic.
- Complete kit includes the impeller and housing for a full service.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Johnson/Evinrude | 5001594 |
| Johnson/Evinrude | 0777800 |
| Johnson/Evinrude | 0434421 |
| GLM | 12101 |
| Mallory | 9-48210 |
| Mallory Mariner | 9-48203 |
| Sierra | 18-3390 |
| Sierra | 18-3392 |
| Mercury Marine | 8M6012792 |
| EMP | 46-00013 |
| Red Rhino | JE-410 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Johnson/Evinrude models, this kit fits a wide range of V4, V6, and V8 engines produced between 1979 and 2006. Please verify your specific model and year against the compatibility list.
| Brand | Model | Rated HP | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Johnson/Evinrude | V4/V6/V8 | 85-300 | 1982–1992 | 5001594 | |
| Johnson/Evinrude | 85ML79R, 85TL79R, 85TXL79R | 85 | 1979 | 5001594 | |
| Johnson/Evinrude | E85MLCSA, E85STLCSA, E85STXCSA | 85 | 1980 | 5001594 | |
| Johnson/Evinrude | 90/115/120/130/135 HP (excluding SL Model) | 90-135 | 1985–2006 | 5001594 | Looper Models 1995–2006 |
| Johnson/Evinrude | 140 | 140 | 1979–2000 | 5001594 | |
| Johnson/Evinrude | 150 | 150 | 1979–1999 | 5001594 | |
| Johnson/Evinrude | 175 | 175 | 1979–1999 | 5001594 | |
| Johnson/Evinrude | 200 | 200 | 1979–2000 | 5001594 | Including "HG" & "HGL" models 2000 |
| Johnson/Evinrude | 225 | 225 | 1986–1992 | 5001594 |
Technical Specs
- Product Type
- Water Pump Repair Kit with Housing
- Installation
- Direct OEM replacement
- Housing Material
- Nylon PA66 Plastic
- Housing Color
- Black
- Dimensions
- 15.0" L x 12.0" W x 10.0" H
- Weight
- 0.58 kg (1.28 lbs)
- Warranty
- 30-day retail return policy
- Other Technical Attributes
- Includes impeller housing
What’s in the Box
- 1 x Water Pump Kit with Housing (5001594)
- 1 x Impeller
- 1 x Housing
- 1 x O-Rings and Seals Set
Installation Notes
- Disconnect the battery and ensure the engine is turned off and cool.
- Place a drain pan under the lower unit and remove the drain screw to empty the gear lube.
- Unbolt and carefully slide the lower unit off the drive shaft housing.
- Remove the old water pump housing, impeller, and wear plate. Clean all mating surfaces thoroughly.
- Install the new wear plate, gasket, impeller, and key. Ensure the impeller vanes are oriented correctly.
- Grease the new housing interior and install it with new seals and bolts, tightening to the manufacturer's torque specification.
- Reinstall the lower unit, refilling with fresh gear lube.
- Reconnect the battery and test the engine using a water supply (flushing muffs) to verify correct pump operation and check for leaks.
Troubleshooting & FAQ
How do I confirm this kit fits my specific engine model?
The best way to ensure fitment is to match your original part number to one of the equivalents listed in our Part Number Matrix. Additionally, cross-reference your engine's model and year in the Engine & Model Compatibility table. If your part number or model is not listed, this kit may not fit.
What are the signs of a failing water pump?
Common symptoms of a bad water pump include the engine overheating at idle or low speeds, a weak or inconsistent stream of water from the "telltale" outlet, and visible cracking or damage to the old impeller during inspection.
How often should I replace my outboard's water pump impeller?
For preventative maintenance, most manufacturers recommend replacing the water pump impeller every 1-2 years or every 100-200 hours of operation, whichever comes first. This interval can be shorter if you operate frequently in sandy or silty water.
Does this kit include the plastic housing?
Yes, this is a complete repair kit that includes the plastic water pump housing, impeller, wear plate, gaskets, and seals required for a full replacement.
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
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
