Mercury Water Separating Fuel Filter – Fits Mercury Marine 175–300 HP V6 & V8 FourStroke Outboards (Replaces 35-8M0106635)
This water separating fuel filter is designed for Mercury Marine 175–300 HP V6 & V8 4-Stroke outboards (2010–2023), including Pro XS, Seapro, Verado, and Racing models. It provides reliable filtration to protect your engine's sensitive fuel system components from water and contaminants.
This part is a direct replacement for Mercury Marine part number 35-8M0106635 / 8M0106635, Sierra 18-7519, and EMP 35-37810.
- Filtration Rating: 10 micron (98% efficiency) to effectively separate water and remove impurities.
- Fuel Compatibility: Designed for gasoline engines, including E10-compatible fuels.
- Installation: Features an inline installation design for straightforward replacement.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
Brand |
Part Number |
Mercury Marine |
35-8M0106635 / 8M0106635 |
Sierra |
18-7519 |
EMP |
35-37810 |
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.
Brand |
Model |
Rated HP |
Stroke |
Years |
OEM Part No. |
Notes |
Mercury |
3.4L V6 |
175 |
4-Stroke |
2010–2023 |
35-8M0106635 |
Including Pro XS models |
Mercury |
3.4L V6 |
200 |
4-Stroke |
2010–2023 |
35-8M0106635 |
Including Pro XS, Seapro models |
Mercury |
3.4L V6 |
225 |
4-Stroke |
2010–2023 |
35-8M0106635 |
Including Pro XS, Seapro models |
Mercury |
3.4L V6 |
250 |
4-Stroke |
2010–2023 |
35-8M0106635 |
Serial #2B529482 & up |
Mercury |
4.6L V8 |
250 |
4-Stroke |
2015–2023 |
35-8M0106635 |
Pro XS, Seapro, Verado models |
Mercury |
4.6L V8 |
250 |
4-Stroke |
2015–2023 |
35-8M0106635 |
Racing models, Serial #1E080500 & up |
Mercury |
4.6L V8 |
300 |
4-Stroke |
2015–2023 |
35-8M0106635 |
Pro XS, Seapro, Verado models |
Mercury |
4.6L V8 |
300 |
4-Stroke |
2015–2023 |
35-8M0106635 |
Racing models, Serial #1E080500 & up |
Mercury |
4.6L V8 |
450 |
4-Stroke |
2015–2023 |
35-8M0106635 |
Racing models |
Technical Specifications
Specification |
Value |
Product Type |
Water Separating Fuel Filter |
Installation |
Inline |
Filtration Rating |
10 micron (98% efficiency) |
Fuel Type |
Gasoline (E10 compatible) |
Housing Color |
Black |
Working Pressure |
75 PSI (confirmed during testing) |
Warranty |
12 months (aftermarket versions) |
Other Technical Attributes |
Designed to separate water from fuel while removing other impurities |
Package Contents
- 1 x Water Separating Fuel Filter (35-8M0106635)
Installation Guide
- Shut off the fuel supply and engine. Ensure the work area is well-ventilated.
- Place a catch pan under the old filter to collect any spilled fuel.
- Carefully disconnect the fuel lines from the existing filter. Note their orientation for reassembly.
- Remove the old filter from its mounting bracket.
- Install the new filter, ensuring the fuel flow direction matches any markings on the housing.
- Securely reconnect the fuel lines to the new filter, ensuring a tight seal.
- Turn the fuel supply back on and carefully check for any leaks around the connections.
- Prime the fuel system according to your engine manufacturer's instructions.
- Start the engine and run it for a few minutes while continuing to check for any signs of fuel leaks.
Troubleshooting & FAQ
Q: How do I confirm this filter fits my Mercury engine?
A: This filter fits specific Mercury 175–300 HP V6 & V8 FourStroke outboards (2010–2023). Please check the compatible models list and verify your OEM part number is 35-8M0106635. For detailed verification, you can use the Mercury Serial Number Guide linked above.
Q: How often should I replace my fuel filter?
A: For optimal performance and engine protection, it is recommended to replace your water-separating fuel filter annually or every 100 hours of operation, whichever comes first. This interval can be shorter if you frequently operate in harsh conditions or use lower-quality fuel.
Q: What are the signs of a failing fuel filter?
A: Common symptoms include engine hesitation, loss of power, stalling, or difficulty starting. If the filter becomes clogged or fails to separate water, it can lead to poor engine performance and potential damage to fuel system components.
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.
Why Choose JLM MARINE?
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Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
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Fast Global Shipping: Free delivery worldwide in 5–15 days.
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Direct from Manufacturer: Competitive pricing without compromising quality.