Water Pump Impeller Repair Kit – Fits Johnson, Yamaha, Jabsco, Yanmar (Replaces 09-812B-1, 6TA-12457-00, 13554-0001-P, 119773-42600)

Water Pump Impeller Repair Kit – Fits Johnson, Yamaha, Jabsco, Yanmar

This water pump impeller repair kit is engineered for a wide range of marine engines, offering a reliable replacement for Johnson inboards, Yamaha outboards, Jabsco pumps, and Yanmar diesel engines. It is designed for systems requiring a 12-spline drive impeller with a diameter of 2.25" (57.1mm) and a width of 1.90" (48.2mm).

This kit provides a direct replacement solution for numerous OEM and aftermarket part numbers, ensuring broad compatibility and restoring your engine's cooling system performance. Please verify your original part number against our cross-reference list before ordering.

• Installation Type: Direct replacement for a seamless fit.
• Impeller Material: Made from durable neoprene (CR) for reliable service life.
• Kit Components: Includes the primary impeller for a standard service replacement.

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/Evinrude Serial Number Guide.

Confirm your engine model/year in the table below. For Yamaha owners, here’s a guide to help you identify your engine’s serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

• 1 x Impeller (Replaces Johnson 09-812B-1 / Jabsco 13554-0001-P)

Installation Guide

1. Safety First: Disconnect the battery and close the water inlet seacock before beginning work.
2. Locate Pump: Identify and access the raw water pump housing on your engine.
3. Remove Cover: Loosen and remove the screws holding the pump cover plate in place.
4. Extract Old Impeller: Carefully remove the old impeller using impeller pullers or two screwdrivers. Note the direction the blades are bent.
5. Clean Housing: Inspect the housing for wear, scoring, or debris. Clean the interior surfaces thoroughly.
6. Prepare New Impeller: Lightly lubricate the inside of the pump housing and the new impeller with a water-based lubricant or glycerine.
7. Install New Impeller: Insert the new impeller, bending the blades in the same direction as the old one. The direction should correspond to the engine's rotation.
8. Replace Seal: Install the new gasket or O-ring onto the cover plate.
9. Reassemble: Secure the cover plate back onto the pump housing and tighten the screws evenly.
10. Final Checks: Reconnect the battery and open the seacock. Start the engine and immediately check for proper water flow from the exhaust and look for any leaks around the pump cover.

Troubleshooting & FAQ

Q: How do I confirm this impeller fits my engine?

A: The best way is to check your original part number against our cross-reference table. You can also measure your existing impeller's diameter, width, and shaft size and compare them to the dimensions listed under "Technical Specifications."

Q: What are the signs of a worn or failing impeller?

A: Common signs include the engine running hotter than normal, a "check engine" or temperature alarm, and a noticeable reduction in water flow from the exhaust outlet. It is crucial to address these symptoms immediately to prevent engine damage.

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

A: Most marine mechanics recommend replacing the impeller every one to two years as preventative maintenance. However, this interval can change based on engine hours, operating conditions (sandy vs. clear water), and whether the pump has been run dry.

Q: Is this an OEM part or an aftermarket replacement?

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.