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FASS FUEL SYSTEMS & PARTS

FASS FUEL SYSTEMS & PARTS

FASS FUEL SYSTEMS & PARTS

Enhance your diesel engine's performance with our extensive selection of Duramax FASS fuel systems and parts. Whether you are a diesel enthusiast or looking to upgrade your engine, our premium FASS fuel systems are designed to deliver superior performance and efficiency.

From lift pumps to fuel filter replacements, water separators to electrical fuel heater kits, we offer a wide range of products to support engines with stock horsepower to highly modified horsepower. Our FASS fuel systems not only provide additional filtration function to improve the effectiveness of your injection pump and injectors but also help prevent injector failure issues associated with Duramax diesel engines.

We pride ourselves on offering top-quality FASS products that are essential for any diesel engine enthusiast. Order your Duramax FASS fuel system today and experience the difference in your engine's performance. With fast shipping and exceptional customer service, we are dedicated to providing you with the best products to upgrade your diesel engine.

Invest in your engine's longevity and performance with our Duramax FASS fuel systems and parts. Browse our selection today and take your diesel engine to the next level!
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  • FASS FLP3000 FUEL SYSTEMS FLEET FILTER PACK FASS FLP3000 FUEL SYSTEMS FLEET FILTER PACK

    FASS FLP3000 FUEL SYSTEMS FLEET FILTER PACK

    FASS

    $151.05
    Perfect for the shop or keeping your garage stocked, each FASS Fuel Filter Pack contains three (3) (XWS3002) Extreme Water Separators and three (3) (PF3001) Particulate Filters! Designed with convenience in mind, our new filter packs make it easy to...
    $151.05
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    $151.05
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  • FASS HB-2001 FUEL SYSTEMS DROP-IN SERIES HEATER PROBE ADAPTER BUSHING FASS HB-2001 FUEL SYSTEMS DROP-IN SERIES HEATER PROBE ADAPTER BUSHING

    FASS HB-2001 FUEL SYSTEMS DROP-IN SERIES HEATER PROBE ADAPTER BUSHING

    FASS

    $11.40
    FASS Diesel Fuel Systems Drop-In Series Heater Probe Adapter Bushing. Part No: HB-2001 This bushing allows the use of the FASS Heater Probe kit with your FASS Drop-In Series Fuel System.  -8 ORB Male to 1/4 inch NPT Female Adapter The FASS Heater Probe...
    $11.40
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    $11.40
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  • FASS DIFS32283R FUEL SYSTEMS DROP-IN SERIES, ELECTRIC HEATER ELEMENT FASS DIFS32283R FUEL SYSTEMS DROP-IN SERIES, ELECTRIC HEATER ELEMENT

    FASS DIFS32283R FUEL SYSTEMS DROP-IN SERIES, ELECTRIC HEATER ELEMENT

    FASS

    $118.75
    FASS Diesel Fuel Systems Drop-In Series, Electric Heater Element (DIFS32283R) Part No.: DIFS32283R Replacement heater element for the HKDIFSHK1001 Heater Kit for the FASS Drop-In Series Systems. This FASS Electric Heater Element will work on the Drop-In...
    $118.75
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    $118.75
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  • FASS DIFSHK1001 FUEL SYSTEMS DROP-IN SERIES ELECTRIC HEATER PROBE KIT FASS DIFSHK1001 FUEL SYSTEMS DROP-IN SERIES ELECTRIC HEATER PROBE KIT

    FASS DIFSHK1001 FUEL SYSTEMS DROP-IN SERIES ELECTRIC HEATER PROBE KIT

    FASS

    $160.55
    FASS Diesel Fuel Systems Drop-In Series Electric Heater Probe Kit (DIFSHK1001) Part No: DIFSHK1001 Our Drop-In Series Electric Heater Probe Kits are an upgrade for FASS Systems being used in extremely cold climates. Each FASS Drop-In Series System has...
    $160.55
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    $160.55
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  • FASS 32283R REPLACEMENT ELEMENT FOR TITANIUM ELECTRIC HEATER FASS 32283R REPLACEMENT ELEMENT FOR TITANIUM ELECTRIC HEATER

    FASS 32283R REPLACEMENT ELEMENT FOR TITANIUM ELECTRIC HEATER

    FASS

    $118.75
    FASS Fuel Systems Diesel Electric Heater Replacement Element (32283R) A replacement element for our FASS Electric Heater (HK1001). This item is intended for replacement parts only The FASS 32283R Replacement Element is designed specifically for the FASS...
    $118.75
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    $118.75
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  • FASS CBK1001 CBK1001 UNIVERSAL HEAVY DUTY PICKUP FRAME CLAMP BRACKET FASS CBK1001 CBK1001 UNIVERSAL HEAVY DUTY PICKUP FRAME CLAMP BRACKET

    FASS CBK1001 CBK1001 UNIVERSAL HEAVY DUTY PICKUP FRAME CLAMP BRACKET

    FASS

    $71.25
    FASS Fuel Systems Universal Heavy Duty Pickup Frame Clamp Bracket CBK1001. Part No: CBK1001 If your truck is equipped with a flatbed, utility bed, or if you have a snow plow truck that is subjected to heavy rust and corrosion, this bracket may better...
    $71.25
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    $71.25
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  • FASS DFD4000 FACTORY FUEL FILTER DELETE KIT FOR 2001-2016 GM 6.6L DURAMAX FASS DFD4000 FACTORY FUEL FILTER DELETE KIT FOR 2001-2016 GM 6.6L DURAMAX

    FASS DFD4000 FACTORY FUEL FILTER DELETE KIT FOR 2001-2016 GM 6.6L DURAMAX

    FASS

    $77.90
    FASS Fuel Systems 2001-2016 Duramax Factory Fuel Filter Delete Canister (DFD4000) Part No: DFD4000 Once you've installed an aftermarket Fuel Filtration System such as our FASS Titanium Series, the use of the factory fuel filter is no longer required and...
    $77.90
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    $77.90
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  • FASS FP3000 FUEL SYSTEMS FILTER PACK FP3000 FASS FP3000 FUEL SYSTEMS FILTER PACK FP3000

    FASS FP3000 FUEL SYSTEMS FILTER PACK FP3000

    FASS

    $99.00
    FASS Fuel Systems Filter Pack FP3000 Part No: FP3000 Perfect for the shop or keeping your garage stocked, each FASS Fuel FP3000 contains two (2) (XWS3002) Extreme Water Separators and two (2) (PF3001) Particulate Filters! Designed with convenience in...
    $99.00
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    $99.00
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  • FASS FP3000XL FUEL SYSTEMS FILTER PACK XL FASS FP3000XL FUEL SYSTEMS FILTER PACK XL

    FASS FP3000XL FUEL SYSTEMS FILTER PACK XL

    FASS

    $56.05
    FASS Fuel Systems Filter Pack FP3000XL Part No: FP3000XL Perfect for the shop or keeping your garage stocked, each FASS Fuel FP3000 contains one (1) (XWS3002XL) Extreme Water Separator and one (1) (PF3001XL) Particulate Filter! Designed with convenience...
    $56.05
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    $56.05
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  • FASS FPR1001 ADJUSTABLE FUEL PRESSURE REGULATOR FASS FPR1001 ADJUSTABLE FUEL PRESSURE REGULATOR

    FASS FPR1001 ADJUSTABLE FUEL PRESSURE REGULATOR

    FASS

    $141.55
    FASS Fuel Systems Adjustable Fuel Pressure Regulator (FPR1001) Part No: FPR1001 The FASS Fuel Systems Adjustable Fuel Pressure Regulator is intended for aftermarket performance applications requiring higher fuel pressures than a typical daily driver...
    $141.55
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    $141.55
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  • FASS HK1001 TITANIUM SERIES OPTIONAL ELECTRIC DIESEL FUEL HEATER KIT FASS HK1001 TITANIUM SERIES OPTIONAL ELECTRIC DIESEL FUEL HEATER KIT

    FASS HK1001 TITANIUM SERIES OPTIONAL ELECTRIC DIESEL FUEL HEATER KIT

    FASS

    $160.55
    FASS Fuel Systems Diesel Fuel Titanium Series Electric Heater Kit (HK1001) Part No: HK1001 Our Titanium Series Electric Heater Kits are an upgrade for FASS Systems being used in extremely cold climates. Each FASS Titanium Series System has 2 ports for...
    $160.55
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    $160.55
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  • FASS HK1002 HIGH OUTPUT HEATER DISK FASS HK1002 HIGH OUTPUT HEATER DISK

    FASS HK1002 HIGH OUTPUT HEATER DISK

    FASS

    $160.55
    High Output Heater Disk (HK1002) Part No: HK1002 When the fuel temperature drops below 34 Degrees Fahrenheit, the thermostatically controlled High Output Fuel Heater Disk will automatically power on. Fuel is then heated by the 300 watt heating element as...
    $160.55
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    $160.55
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  • FASS HKS1001 TITANIUM/TITANIUM SIGNATURE SERIES DUAL ELECTRIC HEATER KIT SPLITTER FASS HKS1001 TITANIUM/TITANIUM SIGNATURE SERIES DUAL ELECTRIC HEATER KIT SPLITTER

    FASS HKS1001 TITANIUM/TITANIUM SIGNATURE SERIES DUAL ELECTRIC HEATER KIT SPLITTER

    FASS

    $37.05
    FASS Titanium Signature Series Dual Electric Heater Kit Splitter Part No: HKS1001 This splitter allows for easy connection if you are utilizing (2) dual FASS Electric Heater Probes (HKS1001).The FASS HKS1001 Titanium Signature Series Dual Electric Heater...
    $37.05
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    $37.05
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  • FASS PF3001 PARTICULATE FILTER FASS PF3001 PARTICULATE FILTER

    FASS PF3001 PARTICULATE FILTER

    FASS

    $20.90
    FASS Fuel Systems PF3001 Particulate Filter (PF3001) Part No: PF3001 Our New Particulate Filter is rated at 144 microns. The 144 Micron Particulate Filter on the suction side will drastically reduce cavitation, increase flow properties, lower the sound...
    $20.90
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  • FASS PF3001XL EXTENDED LENGTH PARTICULATE FILTER FASS PF3001XL EXTENDED LENGTH PARTICULATE FILTER

    FASS PF3001XL EXTENDED LENGTH PARTICULATE FILTER

    FASS

    $23.75
    FASS Fuel Systems PF3001XL Particulate Filter (PF3001XL).Part No: PF3001XLOur New Particulate Filter is rated at 144 microns. The 144 Micron Particulate Filter on the suction side will drastically reduce cavitation, increase flow properties, lower the...
    $23.75
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    $23.75
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  • FASS XWS1002 EXTREME WATER SEPARATOR FASS XWS1002 EXTREME WATER SEPARATOR

    FASS XWS1002 EXTREME WATER SEPARATOR

    FASS

    $38.00
    FASS Fuel Systems XWS1002 Extreme Water Separator (XWS1002) Part No: XWS1002 Our new, more efficient Extreme Water Separator is rated at 2 microns absolute. The reason our water separator no longer has a drain is because the filter element itself traps...
    $38.00
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    $38.00
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  • FASS XWS3002 EXTREME WATER SEPARATOR FASS XWS3002 EXTREME WATER SEPARATOR

    FASS XWS3002 EXTREME WATER SEPARATOR

    FASS

    $29.45
    FASS Fuel Systems XWS3002 Extreme Water Separator (XWS3002) Part No: XWS3002. Our New more efficient Extreme Water Separator is rated at 2 microns absolute. The reason our water separator no longer has a drain is because the filter element itself traps...
    $29.45
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    $29.45
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  • FASS XWS3002XL EXTENDED LENGTH EXTREME WATER SEPARATOR FASS XWS3002XL EXTENDED LENGTH EXTREME WATER SEPARATOR

    FASS XWS3002XL EXTENDED LENGTH EXTREME WATER SEPARATOR

    FASS

    $32.30
    FASS Fuel Systems XWS3002XL Extreme Water Separator (XWS3002XL)Part No: XWS3002XLOur New more efficient Extreme Water Separator is rated at 2 microns absolute. The reason our water separator no longer has a drain is because the filter element itself...
    $32.30
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    $32.30
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  • FASS XWS5000 1-12 INCH TRANSFER TANK FILTER FASS XWS5000 1-12 INCH TRANSFER TANK FILTER

    FASS XWS5000 1-12 INCH TRANSFER TANK FILTER

    FASS

    $30.40
    FASS FUEL SYSTEMS XWS5000 1-12 inch Transfer Tank Fuel Filter (XWS5000). Part No: XWS5000 The FASS XWS5000 Extreme Water Separator Transfer Tank Fuel Filter was designed to remove water, dirt particulates, and rust from your fuel storage tank or fuel...
    $30.40
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    $30.40
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  • FASS QC-PLUG-12 UNIVERSAL QUICK CONNECT PLUG - 1/2" FASS QC-PLUG-12 UNIVERSAL QUICK CONNECT PLUG - 1/2"

    FASS QC-PLUG-12 UNIVERSAL QUICK CONNECT PLUG - 1/2"

    FASS

    $10.45
    ***** Discontinued *****The FASS QC-PLUG-12 Universal Quick Connect Plug is a high-performance solution designed for seamless fluid transfer in a variety of applications. Engineered with precision, this 1/2" quick connect plug is an essential component...
    $10.45
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    $10.45
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  • FASS QC-PLUG-38 UNIVERSAL QUICK CONNECT PLUG - 3/8" FASS QC-PLUG-38 UNIVERSAL QUICK CONNECT PLUG - 3/8"

    FASS QC-PLUG-38 UNIVERSAL QUICK CONNECT PLUG - 3/8"

    FASS

    $10.45
    ***** Discontinued *****The FASS QC-PLUG-38 Universal Quick Connect Plug is designed to revolutionize your fluid connection experience, enhancing efficiency and performance in various applications. Crafted with precision, this 3/8-inch quick connect plug...
    $10.45
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    $10.45
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  • FASS QC-PLUG-516 UNIVERSAL QUICK CONNECT PLUG - 5/16" FASS QC-PLUG-516 UNIVERSAL QUICK CONNECT PLUG - 5/16"

    FASS QC-PLUG-516 UNIVERSAL QUICK CONNECT PLUG - 5/16"

    FASS

    $10.45
    ***** Discontinued *****The FASS QC-PLUG-516 Universal Quick Connect Plug is designed for seamless integration and maximum efficiency in your fuel system setup. Ideal for automotive enthusiasts and professionals alike, this 5/16” quick connect plug...
    $10.45
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    $10.45
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  • FASS XWS-3002-XL EXTENDED LENGTH EXTREME WATER SEPARATOR FASS XWS-3002-XL EXTENDED LENGTH EXTREME WATER SEPARATOR

    FASS XWS-3002-XL EXTENDED LENGTH EXTREME WATER SEPARATOR

    FASS

    $32.30
    FASS Fuel Systems Xws-3002Xl Extreme Water Separator (Xws-3002Xl). Our New More Efficient Extreme Water Separator Is Rated at 2 Microns Absolute. The Reason Our Water Separator No Longer Has A Drain Is Because The Filter Element Itself Traps The Water...
    $32.30
    Qty in Cart: 0
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    $32.30
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  • WEHRLI WCF100276  17-21 CHEVROLET L5P DURAMAX RELOCATION MOUNT FASS LIFT PUMP WEHRLI WCF100276  17-21 CHEVROLET L5P DURAMAX RELOCATION MOUNT FASS LIFT PUMP

    WEHRLI WCF100276 17-21 CHEVROLET L5P DURAMAX RELOCATION MOUNT FASS LIFT PUMP

    WEHRLI CUSTOM FABRICATION

    $60.14
    2017-2023 L5P Duramax Fass Fuel System Relocation Mounting Bracket. Relocates the FASS fuel system to underneath the truck just in front of the fuel tank. -Mount Bracket-Zinc primer & Semi gloss black powder coat finish   The WEHRLI WCF100276...
    $60.14
    Qty in Cart: 0
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    $60.14
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  • WEHRLI WCF100269 FASS FUEL SYSTEM RELOCATION BRACKET FOR 11-16 CHEVROLET 6.6L DURAMAX (CREW CAB ONLY)

    WEHRLI WCF100269 FASS FUEL SYSTEM RELOCATION BRACKET FOR 11-16 CHEVROLET 6.6L DURAMAX (CREW CAB ONLY)

    WEHRLI CUSTOM FABRICATION

    $105.73
    2011-2016 LML Crew Cab Duramax Fass Fuel System Relocation Mounting Bracket. Relocates the FASS fuel system to underneath the truck just before the fuel tank.   **NOT COMPATIBLE on a regular cab or extended cab models**   -Mount Bracket-Zinc...
    $105.73
    Qty in Cart: 0
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    $105.73
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  • WEHRLI WCF100265 FASS FUEL SYSTEM RELOCATION BRACKET FOR 01-10 CHEVROLET 6.6L DURAMAX (CREW CAB ONLY)

    WEHRLI WCF100265 FASS FUEL SYSTEM RELOCATION BRACKET FOR 01-10 CHEVROLET 6.6L DURAMAX (CREW CAB ONLY)

    WEHRLI CUSTOM FABRICATION

    $96.03
    2001-2010 LB7, LLY, LBZ, LMM Crew Cab Duramax Fass Fuel System Relocation Mounting Bracket. Relocates the FASS fuel system to underneath the truck on the inside of the driver side frame rail.   **NOT COMPATIBLE on regular cab or extended cab...
    $96.03
    Qty in Cart: 0
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    $96.03
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  • BD DIESEL 1050348 FLOW-MAX FUEL HEATER KIT FOR FASS FUEL SYSTEMS

    BD DIESEL 1050348 FLOW-MAX FUEL HEATER KIT FOR FASS FUEL SYSTEMS

    BD DIESEL

    $224.95
    Keep your fuel system running smoothly even in the coldest of weather with the BD Diesel 1050348 Flow-Max Fuel Heater Kit. Designed with BD's PTC heating element, this 12V 320W heater is a must-have for cold climate conditions. By being positioned...
    $224.95
    Qty in Cart: 0
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    $224.95
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