Fuel Filter – Fits Yamaha 50-100HP, Mercury 75-100HP 4-Stroke (Replaces 6C5-13915-00, 35-881323001)

Fuel Filter – Fits Yamaha 50-100HP & Mercury 75-100HP 4-Stroke

This high-quality fuel filter is engineered for select Yamaha and Mercury 4-stroke outboard engines. It is designed to meet or exceed OEM specifications, ensuring reliable filtration and engine protection. This component fits inside the vapor separator tank (VST) assembly to screen out contaminants before they reach the injectors.

This part is a direct replacement for Yamaha part numbers including 6C5-13915-00-00 and 6C5-13915-00, as well as Mercury/Mercruiser part number 35-881323001.

• Installation Location: Mounts inside the engine's vapor separator (VST).
• Fuel Compatibility: Safe for use with gasoline, including E10 ethanol blends.
• Fitment Type: Press-fit design for secure, leak-free installation.

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 Models

Mercury Models

Technical Specifications

Package Contents

• 1 x Fuel Filter (Replaces 6C5-13915-00 / 35-881323001)

Explosion Diagram

Installation Guide

Replacing the VST fuel filter requires care. Always relieve fuel pressure before starting and work in a well-ventilated area.

1. Safety First: Disconnect the battery and ensure the engine is cool.
2. Relieve Pressure: Safely relieve fuel system pressure according to your engine's service manual.
3. Locate VST: Identify and access the Vapor Separator Tank (VST) on the engine block.
4. Remove VST: Carefully disconnect fuel lines and electrical connectors, then remove the VST assembly from the engine.
5. Disassemble VST: Open the VST housing by removing its mounting screws to access the internal components.
6. Replace Filter: Remove the old filter, taking note of its orientation and any associated seals. Press the new filter firmly into place.
7. Reassemble & Reinstall: Reassemble the VST, ensuring seals are correctly seated. Reinstall the entire assembly onto the engine.
8. Final Checks: Reconnect all lines and connectors. Prime the fuel system and meticulously check for leaks before starting the engine.

Troubleshooting & FAQ

How do I confirm this fits my engine?
First, check the part numbers in our cross-reference table against your existing part or service manual. Then, verify your engine model and year are listed in the compatibility tables above. For detailed verification, please use the Yamaha or Mercury serial number guides linked in the compatibility section.

Where is this filter located?
This fuel filter is installed inside the Vapor Separator Tank (VST). It is not an external, spin-on, or in-line canister type filter. Access requires removing and disassembling the VST.

What are common symptoms of a clogged VST filter?
A clogged or failing VST filter can cause poor engine performance, including hesitation or bogging under acceleration, difficulty starting, rough idling, and a reduction in maximum RPMs.

How often should I replace this fuel filter?
Replacement intervals depend on fuel quality and usage. As a general guideline, it is recommended to replace this filter every 100-200 operating hours or annually as part of your routine engine maintenance.

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.