Fuel Filter Element – Fits Yanmar 3JH, 4JH, 4LH, 6LY Series (Replaces 120324-55760)

Fuel Filter Element – Fits Yanmar 3JH, 4JH, 4LH, 6LY Series (Replaces 120324-55760)

This fuel filter element is designed for a wide range of Yanmar Marine diesel engines, including various 3JH, 4JH, 4JH4, 4JH5, 4LH, and 6LY series models. It is the short type element with a 60mm height.

This component directly replaces Yanmar P/N 120324-55760 and Fleetguard P/N FF230, providing a reliable alternative for maintaining your fuel system.

• Product Type: Primary Fuel Filter Element / Water Separator
• Fuel Compatibility: Diesel
• Installation: Designed to fit within the Yanmar filter assembly P/N 120324-55751.

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

This package includes the following:

• 1 x Fuel Filter Element (120324-55760)

Explosion Diagram

Installation Guide

1. Safety First: Shut off the engine and the fuel supply valve. Place an appropriate container underneath the fuel filter assembly to catch any diesel fuel.
2. Access the Filter: Carefully unscrew the filter retaining ring or bowl from the filter head.
3. Remove Old Element: Take out the old filter element and any associated seals or O-rings. Dispose of them responsibly.
4. Clean and Inspect: Clean the inside of the filter housing and bowl, ensuring no debris remains. Inspect the bowl and seals for cracks or damage.
5. Install New Element: Place the new 120324-55760 filter element into the housing. Ensure it is seated correctly.
6. Reassemble: Reinstall the filter bowl and retaining ring, making sure the seal is properly seated. Hand-tighten securely.
7. Prime the System: Turn the fuel supply back on. Prime the fuel system according to your Yanmar engine's manual to bleed any air from the lines.
8. Final Check: Start the engine and carefully check for any leaks around the filter housing.

Troubleshooting & FAQ

How can I be sure this filter fits my Yanmar engine?
First, check your engine model against the compatible models list above. It is critical to also physically check your existing filter element. This part is the 60mm height "short type" element. Some engines in the compatible series may use the taller 90mm element (P/N 41650-502320). Do not order if you are unsure.

What are the signs of a clogged fuel filter?
Common symptoms include engine hesitation, sputtering, difficulty starting, reduced power and acceleration, or stalling, especially under load. If you experience these issues, a clogged fuel filter is a likely cause.

How often should I replace my fuel filter element?
Replacement intervals depend on fuel quality and operating hours. As a general guideline, it is best practice to replace your primary fuel filter element at least once per season or every 100-200 operating hours, whichever comes first. Refer to your Yanmar service manual for specific recommendations.

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.