35-8M0106635 Water Separating Fuel Filter for Mercury 175HP 200HP 225HP 250HP 300HP 450HP Verado Pro XS Sea Pro | JLM Marine

Water Separating Fuel Filter – Fits Mercury 175HP–450HP Verado, Pro XS & Sea Pro Outboards

This water separating fuel filter is engineered to fit Mercury 4-stroke outboard engines ranging from 175 HP to 450 HP, including V6 and V8 configurations across Verado, Pro XS, Sea Pro, and Racing series. It delivers reliable fuel system protection by removing water and contaminants before they reach your engine's critical components.

Direct Replacement for: Mercury 35-8M0106635, 8M0106635 | Sierra 18-7519. This filter is designed for Mercury's 175, 200 HP 3.4L V6 (4-Stroke) and 200, 225, 250, 300 HP 4.6L V8 (4-Stroke) and 450 HP 4.6L V8 (Racing) Verado outboard engines.

• Package includes: 2× fuel water separator assemblies
• Compatible with V6 and V8 4-stroke Mercury outboards
• Essential for preventing fuel system damage and maintaining engine performance

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 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.

Technical Specifications

Package Contents

Package Includes: 2× Fuel Water Separator Assembly

(The package contains all the parts shown in the picture.)

Installation Guide

1. Disconnect the battery to ensure safety before beginning any fuel system work.
2. Locate the old fuel filter on your engine's fuel line and note the flow direction arrow.
3. Place a container underneath to catch any residual fuel that may spill during removal.
4. Relieve fuel system pressure by loosening the fuel line connections slowly.
5. Remove the old filter by unscrewing or unclipping it from the mounting bracket and disconnecting fuel lines.
6. Inspect fuel lines and fittings for cracks, wear, or damage; replace if necessary.
7. Install the new fuel water separator in the same orientation, ensuring the arrow points toward the engine.
8. Secure all connections tightly to prevent fuel leaks.
9. Prime the fuel system by squeezing the primer bulb until firm resistance is felt.
10. Reconnect the battery and start the engine to check for leaks or irregularities.
11. Inspect the filter bowl regularly for water accumulation and drain as needed.
12. Replace the filter according to your engine's maintenance schedule or whenever water separation efficiency decreases.

Troubleshooting & FAQ

Q: How do I confirm this filter fits my Mercury engine?
A: Check the compatibility table above for your engine model, HP rating, and serial number range (2B529482 & Up or 1E080500 & Up). You can also use the Mercury Serial Number Guide or review Mercury Parts Diagrams to cross-check part numbers.

Q: How often should I replace the fuel water separator?
A: Replace the filter annually or every 100 hours of operation, whichever comes first. If you notice water accumulation, rough idling, or reduced performance, inspect and replace the filter immediately.

Q: What are the signs that my fuel filter needs replacement?
A: Common symptoms include difficulty starting, engine hesitation or stalling, reduced power output, and visible water or debris in the filter bowl. Regular visual inspections help catch issues early.

Q: Can I use this filter on both V6 and V8 Mercury engines?
A: Yes, this filter is designed to fit Mercury V6 (3.4L, 175–225 HP) and V8 (4.6L, 200–450 HP) 4-stroke models, including Verado, Pro XS, Sea Pro, and Racing variants—refer to the compatibility table for specific serial ranges.

Q: How do I drain water from the separator bowl?
A: Most separators have a drain valve at the bottom of the bowl. Place a container underneath, open the valve, and allow water and contaminants to drain until clean fuel flows. Close the valve securely and re-prime the fuel system.

Q: Is this an OEM or aftermarket part?
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.