Sea Water Pump Impeller Kit – Fits Volvo Penta 3.0-8.1L V6 & V8 Gas Engines (Replaces 21213664, 21700445)

Sea Water Pump Impeller Kit – Fits Volvo Penta 3.0-8.1L V6 & V8 Gas Engines (Replaces 21213664, 21700445)

This impeller kit is designed to fit Volvo Penta 3.0L, 4.3L, 5.0L, 5.7L, and 8.1L gas sterndrive and inboard engines from 2005 and newer. It features a 12-spline drive and 12 blades, made from durable neoprene material with a brass insert for longevity.

Direct replacements include Volvo Penta 21213664, 21700445, 21212794; Sierra 18-3306; Johnson 09-812B, 09-812B-1; Jabsco 13554-0001, 13554-0001-P; Yanmar 119773-42600; CEF 500124; DJ Pump 09-105-1201; Indmar S685007; and Yamaha 6TA-12457-00.

• Includes: Impeller, O-ring, Gasket, Installation instructions
• Fuel type: Gasoline engines
• Installation: Direct replacement for compatible models

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, here9;s a guide to help you identify your engine9s serial/model: Johnson Serial Number Guide.

Technical Specifications

Package Contents

• 1 x Impeller
• 2 x O-ring
• 1 x Gasket
• 1 x Installation Instructions

Installation Guide

1. Ensure the engine is off and cooled down before starting installation.
2. Remove the old impeller and inspect the pump housing for damage or debris.
3. Clean the housing thoroughly to ensure a proper seal with the new impeller.
4. Apply a light coating of lubricant to the new impeller blades for easier installation.
5. Insert the new impeller carefully onto the 12-spline drive shaft.
6. Replace the gasket and O-ring seals included in the kit.
7. Reassemble the pump housing securely to prevent leaks.
8. Check all connections and fasteners to ensure tightness.
9. Start the engine and observe the pump operation for proper water flow.
10. Inspect for leaks during operation and tighten components if necessary.

Troubleshooting & FAQ

How do I confirm this fits my engine?

Check the compatibility table for your engine model, year, and OEM part number to ensure a match.

What are the differences compared to OEM impellers?

This is an aftermarket replacement built to OEM specifications using neoprene with a brass insert for durability.

How often should I replace the impeller?

Impellers typically need replacement annually or after about 200 hours of operation to prevent failure.

What are common signs of impeller failure?

Reduced water flow, engine overheating, and unusual noises from the raw water pump can signal impeller issues.

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 shipping15 days worldwide15 days worldwide15 days worldwide15 days worldwide. 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 515 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.