395289 Water Impeller for Johnson Evinrude | JLM Marine

Water Impeller 395289 for Johnson Evinrude Outboard Motors 20-35 HP

This high-performance neoprene water impeller is engineered for Johnson and Evinrude outboard motors ranging from 20 HP to 35 HP. Designed to deliver reliable cooling system performance across a wide range of model years (1978–2005), this impeller ensures optimal water flow to prevent engine overheating and maintain peak operating efficiency.

This aftermarket replacement impeller directly replaces OEM part number 395289 and cross-references with Sierra 18-3051 and CEF 500370. It is constructed from scientifically engineered high-performance neoprene rubber, offering excellent resistance to marine environments and chemical corrosion.

• 6-blade design for efficient water pumping
• Precision-molded neoprene rubber construction for durability
• Direct fit replacement for multiple horsepower ratings (20/25/28/30/35 HP)

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Johnson/Evinrude owners, here's a guide to help you identify your engine's serial/model: Johnson Serial Number Guide.

Technical Specifications

Package Contents

Your package includes:

• 1 × Outboard Water Impeller (Neoprene)

Installation Guide

1. Disconnect the fuel line and turn off the engine. Ensure the motor is cool and remove the battery connection for safety.
2. Remove the lower unit from the outboard motor. This typically requires unbolting the lower unit housing.
3. Locate and remove the water pump housing cover. Carefully disassemble the pump assembly to access the old impeller.
4. Remove the old impeller from the shaft. Note the direction of the blade curvature for proper installation of the new impeller.
5. Inspect the impeller housing and plate for wear or debris. Clean all surfaces thoroughly and check for damage that may affect sealing.
6. Lubricate the new impeller with marine-grade grease or glycerin. This helps prevent blade damage during initial startup.
7. Install the new impeller onto the shaft. Ensure blades curve in the correct rotational direction (same as the old impeller).
8. Reassemble the water pump housing and cover. Use a new gasket if included and torque bolts to manufacturer specifications.
9. Reattach the lower unit to the outboard motor. Ensure all fasteners are properly tightened.
10. Reconnect the battery and fuel line. Perform a visual inspection before starting the engine.
11. Test the cooling system by running the engine in water. Confirm that water flows steadily from the telltale (pee hole).
12. Monitor engine temperature during the first run. Ensure no overheating occurs and that the water pump operates correctly.

Troubleshooting & FAQ

Q: How do I confirm this impeller fits my specific Johnson or Evinrude motor?
A: Cross-reference your engine's horsepower, model year, and original OEM part number (395289 or 395265) with the compatibility table above. If your motor falls within the listed HP range (20/25/28/30/35 HP) and year range (1978–2005), this impeller will fit.

Q: How often should I replace my water impeller?
A: Most manufacturers recommend replacing the water impeller every 2–3 years or every 200–300 operating hours, whichever comes first. If you frequently operate in sandy or debris-filled water, inspect and replace more often.

Q: What are the signs that my impeller is failing?
A: Common symptoms include reduced or no water flow from the telltale outlet, engine overheating, steam from the powerhead, or loss of power. If you notice any of these signs, inspect and replace the impeller immediately.

Q: Can I install this impeller myself or do I need a professional?
A: If you have basic mechanical skills and the proper tools, you can replace the impeller yourself by following the installation guide. However, if you're unfamiliar with lower unit disassembly, professional installation is recommended to avoid damage.

Q: Is this an OEM impeller or an aftermarket replacement?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.