Fuel Filter Element – Fits Yamaha 50-115HP & Mercury 75-115HP 4-Stroke Outboards (Replaces 68V-24563-00-00, 881540)

Fuel Filter Element – Fits Yamaha 50-115HP & Mercury 75-115HP 4-Stroke Outboards

This aftermarket fuel filter element is a direct replacement for the internal VST (Vapor Separator Tank) filter on a wide range of Yamaha and Mercury 4-stroke outboard engines. It is designed to meet or exceed OEM specifications for filtration and performance, ensuring your engine is protected from fuel contaminants.

This element is a direct replacement for Yamaha part number 68V-24563-00-00 and Mercury part numbers 881540, 35-881540, 8M0168897, 8M0149607, and 35-8M0149607. It also cross-references to Sierra 18-7979 and Mallory 9-37961.

• Installation Location: Mounts inside the Vapor Separator Tank (VST).
• Filtration: Provides 10-micron filtration to protect sensitive fuel injection components.
• Compatibility: Designed for use with standard gasoline fuel systems.

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 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.

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

Yamaha Applications

Mercury Applications

Technical Specifications

Package Contents

• 1 x Fuel Filter Element (68V-24563-00-00/881540)
• Note: Installation gaskets or O-rings for the VST housing are not included and should be sourced separately based on your engine model.

Installation Guide

Professional installation is recommended. The following are generic steps for replacing an internal VST fuel filter. Always consult your engine’s service manual for detailed instructions.

1. Safety First: Disconnect the battery and work in a well-ventilated area away from sparks or flames.
2. Relieve Fuel Pressure: Follow your service manual's procedure to safely relieve pressure from the fuel system.
3. Locate and Disconnect VST: Identify the Vapor Separator Tank on your engine. Disconnect the fuel lines, vent hoses, and electrical connectors attached to it.
4. Remove VST: Unbolt and remove the VST assembly from the engine block. Note the orientation of all connections.
5. Disassemble VST: Carefully open the VST housing by removing the screws or bolts securing the cover. Be prepared for some residual fuel to spill.
6. Remove Old Filter: The filter is located inside the VST. Gently pull it out from its seat.
7. Install New Filter: Seat the new filter element firmly into place, ensuring a proper fit.
8. Reassemble VST: Clean the housing surfaces and inspect the main O-ring or gasket. Reinstall the cover, tightening the bolts to the manufacturer's specified torque in a crisscross pattern.
9. Reinstall VST: Mount the VST back onto the engine and securely tighten the mounting bolts.
10. Reconnect Lines: Reattach all fuel lines, hoses, and electrical connectors to their correct positions.
11. Prime and Check for Leaks: Use the primer bulb to fill the VST with fuel. Carefully inspect the VST cover, fuel lines, and fittings for any leaks before proceeding.
12. Test Engine: Reconnect the battery, turn the key to the "ON" position to allow the fuel pump to pressurize, and re-check for leaks. Start the engine and let it run, monitoring for normal operation.

Troubleshooting & FAQ

Q: How do I confirm this filter fits my specific engine model?

A: The best way to ensure compatibility is to match your existing part number to one of the numbers listed in our Part Number Cross-Reference table. You can also check your engine model and year against the detailed compatibility tables provided on this page.

Q: What are common symptoms of a clogged or failing VST fuel filter?

A: A restricted VST filter can cause fuel starvation issues, especially at higher RPMs. Common signs include engine bogging under acceleration, difficulty starting, stalling at idle, or a general loss of power. These symptoms are very similar to a failing high-pressure fuel pump.

Q: How often should I replace this fuel filter?

A: For preventative maintenance, it is recommended to replace the VST fuel filter annually or every 100 hours of operation, whichever comes first. Refer to your engine's service manual for the manufacturer's recommended service interval.

Q: Does this kit include the large O-ring needed to reseal the VST?

A: No, this product includes only the fuel filter element itself. The necessary gaskets and O-rings to reseal the VST housing must be purchased separately. We strongly recommend replacing these seals anytime the VST is opened.

Q: OEM vs. Aftermarket?

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. Damage resulting from improper installation is not covered by warranty.

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.