19231-ZV5-000 Water Pump Impeller Wear Plate for Honda BF35A BF40A BF40D BF45A BF50A BF50D | JLM Marine

Water Pump Impeller Wear Plate – Fits Honda BF35A BF40A BF40D BF45A BF50A BF50D

This water pump impeller wear plate is designed to fit Honda outboard engines ranging from 35 HP to 50 HP, including the BF35A, BF40A, BF40D, BF45A, BF50A, and BF50D models across all production years. It serves as a critical component in the cooling system, providing a smooth surface for the impeller to seal against and ensuring optimal water flow to protect your engine from overheating.

This aftermarket replacement directly replaces Honda OEM part number 19231-ZV5-000, offering a reliable and cost-effective solution for maintaining your outboard's water pump assembly. Whether you're performing routine maintenance or a complete pump rebuild, this wear plate is engineered to meet OEM specifications.

• Package includes 2 wear plates for complete pump service or future replacement
• Direct fit for multiple Honda 35–50 HP models
• Essential for maintaining proper impeller function and cooling efficiency

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

Your purchase includes:

• 2 × Water Pump Impeller Wear Plates

Installation Guide

1. Disconnect the fuel line and remove the lower unit from the outboard following your service manual's instructions.
2. Remove the water pump housing by unscrewing the retaining bolts. Keep track of all hardware for reassembly.
3. Carefully remove the old impeller and wear plate from the pump housing, noting their orientation.
4. Clean the pump housing thoroughly, removing any debris, old gasket material, or corrosion.
5. Inspect the drive shaft and housing for wear or damage that could affect pump performance.
6. Install the new wear plate into the pump housing, ensuring it seats flush and is properly aligned.
7. Lubricate the new impeller with glycerin or soapy water (never petroleum-based products) before installation.
8. Install the impeller onto the drive shaft, ensuring the vanes rotate in the correct direction per your service manual.
9. Reassemble the pump housing with a new gasket, torquing bolts to manufacturer specifications in a cross pattern.
10. Reinstall the lower unit, ensuring proper alignment and secure mounting.
11. Reconnect the fuel line and refill the lower unit with the appropriate gear oil.
12. Test the cooling system by running the engine in water and verifying strong water flow from the tell-tale indicator.

Troubleshooting & FAQ

Q: How do I confirm this wear plate fits my Honda outboard?
A: Cross-reference your engine model with the compatibility table above. All BF35A, BF40A, BF40D, BF45A, BF50A, and BF50D models across all years use OEM part number 19231-ZV5-000, which this product replaces.

Q: How often should I replace the water pump wear plate?
A: Wear plates should be inspected annually and replaced whenever you replace the impeller, typically every 2–3 years or 200–300 hours of operation. Replace immediately if you notice scoring, warping, or uneven wear.

Q: What are the signs that my wear plate needs replacement?
A: Symptoms include weak water flow from the tell-tale, engine overheating, steam from the engine, or visible scoring/damage on the plate surface during inspection. Always replace the wear plate when servicing the water pump.

Q: Can I reuse the old wear plate if it looks okay?
A: It's not recommended. Even minor surface wear can reduce impeller efficiency and cooling performance. Since this kit includes two plates, you'll have a spare for your next service interval.

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.