433935 Water Pump Impeller for Evinrude Johnson OMC BRP | JLM Marine

Water Pump Impeller for Evinrude Johnson OMC BRP 2HP–4HP Outboard Motors

This high-quality aftermarket water pump impeller is designed to fit Evinrude, Johnson, OMC, and BRP 2-stroke outboard motors ranging from 2HP to 4HP. It ensures reliable cooling system performance for models including the Ultra and Excel series (1987–2006), as well as specific J-series and E-series engines.

This impeller directly replaces OEM part numbers 433915, 433935, and 396852, and cross-references with popular aftermarket brands including Sierra 18-3015 and CEF 500332.

• Fits 2-stroke outboard motors: 2HP, 2.5HP, 3HP, 3.5HP, and 4HP
• Compatible with Johnson models J2, J3, J4 and Evinrude models E3, E4
• Direct replacement for multiple OEM and aftermarket part numbers

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 order includes:

• Outboard Impeller (1 piece)

Installation Guide

1. Disconnect the fuel line and remove the spark plug wire to ensure the engine cannot accidentally start during service.
2. Remove the lower unit from the outboard motor following your engine's service manual. This typically involves removing retaining bolts and disconnecting the shift linkage.
3. Access the water pump housing by removing the mounting bolts on the lower unit. Carefully separate the housing to expose the old impeller.
4. Remove the old impeller from the shaft, noting its orientation and the direction of the blade bend.
5. Clean the pump housing and inspect the housing plate and gasket surfaces for damage or debris. Replace gaskets if worn.
6. Lubricate the new impeller with water pump grease or soapy water to ease installation and prevent blade damage.
7. Install the new impeller onto the shaft, ensuring the blades are oriented in the correct rotation direction (typically opposite the engine's rotation).
8. Reassemble the water pump housing, carefully aligning all components and installing new gaskets where required.
9. Reattach the lower unit to the motor, reconnect the shift linkage, and torque all bolts to manufacturer specifications.
10. Reconnect the spark plug wire and fuel line, then perform a water test to confirm proper cooling system function.
11. Monitor the telltale stream during initial operation to verify the impeller is pumping water correctly.

Troubleshooting & FAQ

Q: How do I confirm this impeller fits my engine?
A: Cross-reference your engine's model number and horsepower with the compatibility table above. Verify your original impeller matches OEM part numbers 433915, 433935, or 396852. If you own a Johnson or Evinrude motor from 1987–2006 in the 2HP–4HP range, this impeller should fit.

Q: How often should I replace the water pump impeller?
A: Most manufacturers recommend replacing the impeller every 2–3 years or 200–300 hours of operation, whichever comes first. If you notice overheating, reduced water flow from the telltale, or visible cracks/missing blades, replace it immediately.

Q: What are the signs of a failing impeller?
A: Common symptoms include weak or no water discharge from the telltale outlet, engine overheating, steam from the powerhead, or an audible alarm (if equipped). Inspect the impeller if any of these occur.

Q: Can I install this impeller myself or do I need a professional?
A: If you have basic mechanical skills and tools, you can install this impeller following your engine's service manual. However, professional installation is recommended to ensure proper sealing, torque specs, and cooling system function.

Q: Is this an OEM part or aftermarket?
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.