Center console boats running offshore next to Frimarine FFWS2003 and FFWS2007 fuel filters

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Fishing Gear Deck Hardware Electrical Fuel Systems View all
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Frimarine fuel filter water separator installed on an engine

Fuel System Collection

10-micron spin-on filtration with water separation, for outboard and inboard engines.

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Fuel filtration

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Start with a 10-micron replacement filter, or go complete with bracket and see-through water bowl.

Fuel Filter Water Separator, 10 Micron Spin-On · FFWS2003 1 · Replacement filter Fuel Filter Water Separator, 10 MicronFFWS2003 · FFWS2007$30.44 Fuel Filtration System · FFWS0003 2 · Filter + water bowl Fuel Filtration SystemFFWS0003 · FFWS0007$59.62 MOST COMPLETEComplete Fuel Filtration System 3/8" Outboard, Low-Permeation EPA · FFWS1003 3 · Filter + bowl + bracket Complete Fuel Filtration SystemFFWS1003 (3/8" outboard) · FFWS1007 (3/4" inboard)from $116.06

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Marine-grade parts for every system on board, each with its own part number.

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Fuel SystemsFuel Systems Electrical EquipmentElectrical Equipment Deck HardwareDeck Hardware
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The right sending unit in 30 seconds

Enter your tank depth and we match the length: 6", 8", 10", 12", 14" or 16".

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Installing a Frimarine fuel sending unit
Tank depth13"
Rule2" shorter
Your unit10" · FSUT2500

Introducing our bestsellers

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On the water

Made for real boats

316 stainless steel gas deck fill on a boat deck 316 SS Deck Fill Keyless cap · gas or water · $96.60 Installing a Frimarine fuel sending unit in a boat tank Fuel Sending Unit 240-33 Ω 6" to 16" · from $88.20 Recessed transom shower rinsing a boat deck Recessed Transom Shower 13 ft (4 m) hose · $150.00

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Frimarine complete fuel filtration system FFWS1003 with FFWS2003 filter, bracket and clear water bowl Complete Fuel Filtration System 3/8" Outboard, Low-Permeation EPA · FFWS1003 $116.06 USD Frimarine complete fuel filtration system FFWS1007 with FFWS2007 filter, bracket and clear water bowl Complete Fuel Filtration System 3/4" Inboard, Low-Permeation EPA · FFWS1007 $141.12 USD 316 stainless steel deck fill with keyless cap, gas, Frimarine SSDK0010 316 Stainless Steel Deck Fill with Keyless Cap, 1-1/2" $96.60 USD Frimarine 316 stainless steel LED push button switch, IP65 316 Stainless Steel LED Push Button Switch, IP65 from $25.92 USD
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Frimarine fuel filtration system on a boat engine

Stay ahead of maintenance

Tell us which filter you use and we'll send you maintenance tips and an easy way to reorder the right part. Change intervals depend on your engine: follow your technician's recommendation.

Boating guides

Know your parts before you buy

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Racor-Compatible Fuel Filters: Genuine vs Aftermarket, What Actually MattersOct 23, 2026Racor-Compatible Fuel Filters: Genuine vs Aftermarket, What Actually MattersThread size, micron rating, tested water separation, seals and where you buy: the five things that matter when choosing a...Read guide →10 vs 30 Micron Fuel Water Separator for Outboards: Which Do You Need?Oct 23, 202610 vs 30 Micron Fuel Water Separator for Outboards: Which Do You Need?For most gasoline outboards, a 10 micron fuel water separator is the right choice. Here is why, and when 30...Read guide →Marine Fuel Filter Water Separator Buying Guide: FFWS2003 vs FFWS2007Oct 23, 2026Marine Fuel Filter Water Separator Buying Guide: FFWS2003 vs FFWS2007How to choose the right 10 micron fuel filter water separator, bowl and bracket for your outboard or inboard engine.Read guide →