Water Pump Impeller – Fits Johnson/Evinrude 65–300 HP (Replaces 395864, 397131, 435821)
Water Pump Impeller – Fits Johnson/Evinrude 65–300 HP (Replaces 395864, 397131, 435821) is backordered and will ship as soon as it is back in stock.
Worry-free returns
Worry-free returns
Shop with confidence. If you’re not completely satisfied, eligible items may be returned within the return window, provided they are unused and in original packaging.
If the return is due to our error or a defective item, we’ll make it right.
Please contact us before returning any item.
Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
International delivery times may vary due to customs processing.
Tracking information will be provided once your order ships.
Water Pump Impeller – Fits Johnson/Evinrude 65–300 HP (Replaces 395...
Water Pump Impeller – Fits Johnson/Evinrude 65–300 HP (Replaces 395864, 397131, 435821) is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket Water Pump Impeller is designed for a wide range of Johnson/Evinrude outboard motors from 1979 and up, covering 65 HP to 300 HP models including V4, V6, and V8 engines, as well as Sea Drive units.
It serves as a direct replacement for Johnson/Evinrude part numbers 395864, 397131, 435821, 435748, and 5001593, and interchanges with Sierra 18-3059 and Mallory 9-45206.
- Engineered for direct-fit installation with a keyed shaft connection.
- Advanced blade design prevents engine overheating by ensuring consistent water flow.
- Constructed from durable rubber with a metal insert for reliable performance.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Johnson/Evinrude | 395864 | OEM Equivalent |
| Johnson/Evinrude | 397131 | OEM Equivalent |
| Johnson/Evinrude | 435821 | OEM Equivalent |
| Johnson/Evinrude | 435748 | OEM Equivalent |
| Johnson/Evinrude | 5001593 | Current OEM Number |
| Sierra | 18-3059 | Aftermarket Cross-Reference |
| Mallory | 9-45206 | Aftermarket Cross-Reference |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This impeller fits a wide range of Johnson, Evinrude, and OMC models. Please verify your engine's horsepower, year, and original part number before ordering.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Johnson/Evinrude | Outboard | 85 | 2-Stroke | 1979 and up | 395864/397131/435821 | |
| Johnson/Evinrude | Outboard | 90 | 2-Stroke | 1979 and up | 395864/397131/435821 | |
| Johnson/Evinrude | FICHT | 90 | 2-Stroke | 1995 and up | 395864/397131/435821 | |
| Johnson/Evinrude | Outboard | 100 | 2-Stroke | 1979 and up | 395864/397131/435821 | |
| Johnson/Evinrude | Commercial | 100 | 2-Stroke | 1984 and up | 395864/397131/435821 | |
| Johnson/Evinrude | Commercial | 105 | 2-Stroke | 1998 and up | 395864/397131/435821 | |
| Johnson/Evinrude | Outboard | 115 | 2-Stroke | 1979 and up | 395864/397131/435821 | |
| Johnson/Evinrude | FICHT | 115 | 2-Stroke | 1995 and up | 395864/397131/435821 | |
| Johnson/Evinrude | 25" | 120 | 2-Stroke | 1994 and up | 395864/397131/435821 | |
| Johnson/Evinrude | 25" | 130 | 2-Stroke | 1994 and up | 395864/397131/435821 | |
| Johnson/Evinrude | Outboard | 140 | 2-Stroke | 1979 and up | 395864/397131/435821 | |
| Johnson/Evinrude | 25" | 140 | 2-Stroke | 1993 and up | 395864/397131/435821 | |
| Johnson/Evinrude | Outboard | 150 | 2-Stroke | 1979 and up | 395864/397131/435821 | |
| Johnson/Evinrude | Outboard | 175 | 2-Stroke | 1979 and up | 395864/397131/435821 | |
| Johnson/Evinrude | Commercial | 200 | 2-Stroke | 1990 | 395864/397131/435821 | |
| Johnson/Evinrude | Outboard | 225 | 2-Stroke | 1993 and up | 395864/397131/435821 | |
| Johnson/Evinrude | Outboard | 235 | 2-Stroke | 1979 and up | 395864/397131/435821 | |
| Johnson/Evinrude | V4, V6, V8 | Various | 2-Stroke | 1982–1994 | 395864/397131/435821 | |
| Johnson/Evinrude | Sea Drives | Various | 2-Stroke | 1979 and up | 395864/397131/435821 | |
| Johnson/Evinrude | Various | 65–300 | 2-Stroke | 1979 and up | 5001593 | Newer part number |
Technical Specs
- Product Type
- Water Pump Impeller
- Installation
- Direct replacement
- Fuel Type
- N/A
- Connection
- Keyed shaft
- Housing Material
- Rubber with metal insert
- Housing Color
- Black
- Fitting Type
- Keyed drive shaft
- Thread Size
- N/A
- Working Pressure
- N/A
- Other Technical Attributes
- Blade design prevents engine overheating
What’s in the Box
- 1 x Water Pump Impeller (Replaces 395864, 397131, 435821, 5001593)
Installation Notes
- Disconnect the battery and remove the engine cowling.
- Shift the outboard into neutral and remove the lower unit (gearcase) bolts.
- Carefully separate the lower unit from the upper casing.
- Locate and unbolt the water pump housing cover.
- Slide the old impeller off the driveshaft, taking note of the blade orientation.
- Clean the inside of the pump housing and inspect the wear plate for scoring or damage.
- Lightly grease the new impeller and the inside of the housing with marine grease.
- Install the new impeller onto the keyed shaft, turning the shaft clockwise to bend the blades into the correct position.
- Reinstall the water pump housing and torque the bolts to manufacturer specifications.
- Reattach the lower unit, ensuring the driveshaft, shift rod, and water tube are correctly aligned.
- Once assembled, test the engine using a water source and verify a strong stream from the tell-tale outlet.
Troubleshooting & FAQ
How do I know if my water pump impeller has failed?
Common signs include a weak or no water stream from the engine's tell-tale port, an engine overheating alarm, or a noticeable decrease in engine performance. A visual inspection will often show cracked, brittle, or worn-down blades.
How often should the impeller be replaced?
For preventative maintenance, it is recommended to inspect the impeller annually and replace it every 1-2 years or every 100-200 hours of use, depending on operating conditions (e.g., saltwater vs. freshwater, high-sand environments).
What is the correct rotational direction for the impeller blades during installation?
The blades should be curved in the direction of the driveshaft's normal rotation (typically clockwise for most outboards). Installing them backward can cause premature failure and severely restrict water flow.
Is this part for both saltwater and freshwater use?
Yes, this impeller is constructed from high-quality, corrosion-resistant rubber and metal designed to perform reliably in both saltwater and freshwater environments.
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.
