19221-ZV5-000 Impeller Housing for Honda BF25 BF30 BF35 BF40 BF45 BF50 | JLM Marine

Impeller Housing for Honda BF25 BF30 BF35 BF40 BF45 BF50 Outboards

This aftermarket impeller housing is designed to fit Honda outboard engines ranging from 25 HP to 50 HP across multiple model series. Engineered to meet OEM specifications, this housing ensures reliable cooling system performance for your marine engine.

This part directly replaces Honda OEM part number 19221-ZV5-000, providing a cost-effective alternative without compromising quality or fit. Compatible with BF25, BF30, BF35, BF40, BF45, and BF50 series engines.

• Direct replacement for Honda OEM 19221-ZV5-000
• Essential component of the engine cooling system
• Fits multiple Honda outboard horsepower ratings from 25 HP to 50 HP

Part Number Cross-Reference

Use this table to confirm the OEM part number for your Honda outboard:

Compatible Engine Models

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

Your purchase includes:

• 1x Impeller Housing (Honda 19221-ZV5-000)

Note: It is VERY IMPORTANT to check your outboard engine year, model, and horsepower before purchase. If you have any questions, please do not hesitate to ask.

Installation Guide

1. Disconnect the battery and ensure the engine is completely cool before beginning work on the cooling system.
2. Remove the lower unit from the outboard motor according to your engine's service manual.
3. Locate the water pump assembly on the driveshaft housing and remove the bolts securing the old impeller housing.
4. Carefully remove the old impeller housing, taking note of the orientation and position of all components.
5. Clean all mating surfaces thoroughly to remove old gasket material, debris, and corrosion.
6. Install the new impeller housing, ensuring proper alignment with the water pump assembly and driveshaft.
7. Torque all fasteners to the manufacturer's specifications to prevent leaks and ensure secure mounting.
8. Reassemble the lower unit and reconnect all components in reverse order of disassembly.
9. Reconnect the battery and run the engine with a flush adapter to test for proper water flow and leaks.
10. Monitor the cooling system during the first few runs to ensure proper operation and adequate water discharge from the tell-tale.

Troubleshooting & FAQ

Q: How do I confirm this impeller housing fits my Honda outboard?
A: Check the Compatible Engine Models table above for your specific model and horsepower. Verify that your engine's OEM part number matches 19221-ZV5-000. If you're unsure, contact us with your engine's serial number and model information.

Q: What are the signs that my impeller housing needs replacement?
A: Common indicators include cracks or damage to the housing, corrosion on mounting surfaces, reduced water flow from the tell-tale, engine overheating, or visible leaks around the water pump assembly. Regular inspection during impeller replacement is recommended.

Q: Should I replace other water pump components when installing a new housing?
A: Yes, it's highly recommended to replace the impeller, gaskets, and seals whenever you replace the impeller housing. This ensures optimal cooling system performance and prevents premature failure of new components.

Q: Can I reuse the old gaskets when installing this housing?
A: No, always use new gaskets when replacing the impeller housing. Reusing old gaskets can lead to leaks, reduced cooling efficiency, and potential engine damage from overheating.

Q: How often should I inspect the impeller housing?
A: Inspect the impeller housing annually or every 100 hours of operation, whichever comes first. If you operate in saltwater, sandy conditions, or run the engine frequently, more frequent inspections are advisable.

Q: Is this an OEM or aftermarket part?
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.