Engineered Marine Products 35-37811 Fuel Water Separator Filter, Replaces Sierra 18-7919, Fits Mercury 35-150 HP Outboards

The Engineered Marine Products 35-37811 is a 10 micron fuel water separator filter built for Mercury/Mariner 4-cylinder outboard engines rated from 35 to 150 HP. Its job is to pull water and particulate contamination out of the fuel stream before it reaches the engine, which matters most with today's ethanol-blended fuels that readily absorb moisture and can lead to hard starting, rough running, or corrosion inside the fuel system. The filter element is rated to remove particles as small as 10 microns at better than 90% efficiency, while still supporting a flow rate of over 90 gallons per hour, well above typical industry benchmarks, so filtration performance does not come at the cost of fuel delivery.

The 35-37811 has a metal outer housing and is designed to accept both plastic and metal fuel bowls, giving installers flexibility depending on the mounting arrangement already in place. It uses an 11/16"-16 thread pitch for a secure, leak-resistant seal at the filter head. Engineered Marine Products backs the 35-37811 with a 2-year limited warranty.

Specifications

• Brand: Engineered Marine Products
• Manufacturer Part Number: 35-37811
• Product Type: Fuel Water Separator Filter
• Micron Rating: 10 microns
• Thread Pitch: 11/16"-16
• Flow Rate: Over 90 gallons per hour
• Filtration Efficiency: Over 90% at 10 microns
• Bowl Compatibility: Accepts plastic and metal fuel bowls
• Outer Material: Metal
• Weight: 1.06 pounds
• Fitment: Mercury/Mariner 4-cylinder 35-150 HP outboard engines
• OEM Cross-Reference: Racor S3213, Racor S3220UL, Sierra 18-7919
• Warranty: 2-year limited warranty
• UPC: 840080402499

Fitment

• Mercury/Mariner 4-cylinder outboard engines, 35-150 HP

Replaces (OEM)

• Racor S3213
• Racor S3220UL
• Sierra 18-7919

Frequently Asked Questions

What engines does the EMP 35-37811 fuel filter fit? The 35-37811 fits Mercury/Mariner 4-cylinder outboard engines rated from 35 to 150 HP.

What is the micron rating of this filter? The 35-37811 carries a 10 micron rating and removes over 90% of particles as small as 10 microns from the fuel stream.

Does the 35-37811 replace Racor filters? Yes, the 35-37811 is a direct replacement for Racor S3213 and Racor S3220UL fuel water separator filters.

Is this the same filter as Sierra 18-7919? The Engineered Marine Products 35-37811 is a cross-reference equivalent to Sierra 18-7919.

What thread size does the 35-37811 use? It uses an 11/16"-16 thread pitch at the filter head.

Will this filter work with a metal or plastic fuel bowl? The 35-37811 accepts both plastic and metal fuel bowls, so it works with either bowl style already installed.

What is the flow rate of the 35-37811 fuel filter? It supports a flow rate of over 90 gallons per hour, which exceeds typical industry standards for this filter class.

Does this filter help with ethanol fuel problems? Yes, the 35-37811 is designed to separate the water that ethanol-blended fuel absorbs, helping protect the engine from moisture-related fuel issues.

How much does the 35-37811 filter weigh? The Engineered Marine Products 35-37811 weighs 1.06 pounds.

What material is the 35-37811 filter housing made from? The outer housing of the 35-37811 is made of metal.

Is the 35-37811 covered by a warranty? Engineered Marine Products backs the 35-37811 with a 2-year limited warranty.

Is the EMP 35-37811 a genuine or aftermarket part? The 35-37811 is an aftermarket fuel water separator filter manufactured by Engineered Marine Products, engineered as a direct cross-reference to Racor and Sierra filters used on Mercury/Mariner outboards.