Water Pump Impeller Kit – Fits Honda Marine 35-50HP 4-Stroke Outboards (Replaces 06192-ZV5-003, 06192-ZW3-000)

Water Pump Impeller Kit – Fits Honda Marine 35-50HP 4-Stroke Outboards

This water pump impeller kit is engineered for Honda Marine 4-Stroke outboards, including 35HP, 40HP, 45HP, and 50HP models (BF35A, BF40A, BF40D, BF45A, BF50A, BF50D) for all production years. It provides a reliable solution for maintaining your engine's cooling system.

This kit serves as a direct replacement for multiple OEM and aftermarket part numbers, ensuring broad compatibility. It is designed to meet or exceed original equipment specifications for fit, form, and function.

• Engineered for a direct replacement installation.
• Features a durable, high-performance neoprene rubber impeller and a non-asbestos gasket.
• Complete kit includes the impeller, gasket, keyway, and O-ring for a full service.

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.

Technical Specifications

Package Contents

• 1 x Water Pump Impeller (19210-ZW1-B02/19210-ZW1-B03/19210-ZW1-B04)
• 1 x Impeller Gasket (19234-ZW1-B00)
• 1 x Impeller Keyway (90752-ZW1-B02)
• 1 x O-Ring (91356-ZW1-B00)

Installation Guide

1. Safety First: Disconnect the engine's battery cables before beginning work.
2. Access the Pump: Remove the lower unit (gearcase) from the outboard motor to access the water pump assembly.
3. Disassemble Housing: Carefully unbolt and remove the water pump housing. Note the orientation of the bolts as some may be different lengths.
4. Remove Old Impeller: Take out the old impeller, paying close attention to the rotational direction of the vanes. This will be important for installing the new one.
5. Clean and Inspect: Thoroughly clean the inside of the pump housing and the wear plate. Inspect them for deep grooves, warping, or corrosion. Replace if significant wear is found.
6. Install New Components: Place the new impeller keyway onto the driveshaft. Install the new gasket and O-ring.
7. Insert New Impeller: Slide the new impeller onto the driveshaft. Rotate the shaft clockwise while pushing down to correctly orient the impeller vanes.
8. Reassemble: Reinstall the water pump housing and tighten the bolts to the manufacturer's specified torque in a crisscross pattern.
9. Final Steps: Reattach the lower unit to the outboard. Test the engine using a water supply (flusher or in the water) to confirm that water is exiting the tell-tale port.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my Honda engine?

A: This kit is specifically designed for Honda 35HP, 40HP, 45HP, and 50HP 4-stroke models, including the BF35A, BF40A, BF40D, BF45A, BF50A, and BF50D. The best way to ensure fitment is to check your engine model against our "Compatible Engine Models" table or match your existing part number to one of the cross-reference numbers provided (e.g., Honda 06192-ZV5-003, Sierra 18-3282).

Q: What are the common signs that my water pump impeller is failing?

A: The most common indicators of a faulty impeller are engine overheating at idle or low speeds, and a weak or intermittent water stream from the engine's tell-tale outlet. During a visual inspection, a worn impeller may have cracked, brittle, or missing vanes.

Q: How often should I replace the water pump impeller?

A: As a crucial part of preventative maintenance, we recommend inspecting the impeller annually. For optimal engine protection, replacement is advised every 1 to 2 years or every 100-200 hours of operation, especially if used frequently in saltwater or silty/sandy conditions.

Q: OEM vs. 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.