Impeller Kit – Fits Volvo Penta AQ & BB Series, Johnson F5B, Jabsco 4568-0001 (Replaces 875575, 09-801B)

Impeller Kit – Fits Volvo Penta AQ & BB Series, Johnson F5B, Jabsco 4568-0001

This marine water pump impeller kit is designed for a wide range of Volvo Penta inboard and stern drive applications, including the AQ115–AQ171 and BB115–BB170 series engines from the 1970s to the 1990s. It also serves as a direct replacement for Johnson F5B pumps, Jabsco 4568-0001 pumps, and select Yanmar marine diesel engines.

This impeller directly replaces multiple OEM and aftermarket part numbers, offering broad compatibility for engine maintenance and repair.

• Installation: Key Drive
• Material: Features a durable brass hub with flexible neoprene rubber blades.
• Design: Engineered with a 12-blade design for efficient water flow and cooling.

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.

Volvo Penta Marine Engines

Johnson Pumps

Jabsco Pumps

Oberdorfer Pumps

Phasor Marine Diesel Generator Kubota

Technical Specifications

Package Contents

• 1 x Water Pump Impeller
• Note: Some kits may include gaskets or O-rings, but this varies by seller. Standard listings include the impeller only. Please verify the contents with your seller before purchasing.

Installation Guide

1. Turn Off Power: Disconnect the battery and turn off the engine's main power switch and sea-cock.
2. Access the Pump: Locate the raw water pump and remove the cover plate screws to access the old impeller.
3. Remove Old Impeller: Use impeller pliers or two screwdrivers to carefully pry out the old impeller.
4. Clean Housing: Inspect the pump housing for debris, scoring, or damage. Clean it thoroughly.
5. Install New Impeller: Lightly lubricate the new impeller with water-resistant grease. Insert it while rotating the shaft in the direction of engine operation to bend the blades correctly.
6. Replace Cover: Install a new gasket or O-ring if included, then securely fasten the cover plate.
7. Test Operation: Reconnect power, open the sea-cock, and start the engine. Check for proper water flow and leaks.

Troubleshooting & FAQ

How do I confirm this impeller fits my engine?
The best way is to verify your existing part number. Compare it to the numbers in our Part Number Cross-Reference table. You should also check your specific engine model against our compatibility list and confirm the dimensions match your old part.

What are the signs of a failing impeller?
Common signs include engine overheating, a reduction in water flow from the exhaust, and visible cracks or stiffness in the impeller blades. Premature failure can be caused by running the pump dry.

How often should I replace my engine's water pump impeller?
As a general maintenance rule, it is recommended to inspect your impeller annually and replace it every 1-2 years, or after every 100-200 hours of use, depending on operating conditions. Impellers can dry out and crack even when not in use.

OEM vs. Aftermarket?
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.

How fast do you ship and how much does it cost?
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.

What is your warranty and return policy?
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.