FITTINGS AND COUPLERS
Whether you need to join two hoses together, adapt different fitting sizes, or create a quick connect/disconnect mechanism, the fittings and couplers category has a wide range of products to meet your specific needs. From 90-degree connectors to straight adapters and Y-fittings, there are options available for every type of connection requirement.
Manufactured by trusted brands like Vulcan Performance, Fleece, PPE, and Fragola, these fittings and couplers are made from high-quality materials such as nylon, steel, and aluminum to ensure durability and reliability. Some products even feature a push-lock design for quick and secure installation without the need for additional tools.
Whether you are a professional mechanic, DIY enthusiast, or industrial operator, having the right fittings and couplers in your toolkit is essential for maintaining and repairing equipment effectively. With a diverse selection of products available, you can find the perfect fit for your specific application, helping you get the job done right the first time.
Explore our range of fittings and couplers today and discover the perfect solution for all your fluid and gas connection needs. Trust in the quality and performance of these products to keep your systems running smoothly and efficiently.
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FLEECE FPE-DMAX-CP3-ADPT CP3 ADAPTER FOR 6.6L DURAMAX
FLEECE PERFORMANCE
$66.49Replacement CP3 adapter machined from billet aluminum for the 2001-2016 GM Duramax. Includes new O-rings for the CP3 pump snout and CP3 adapter. Application Notes: Direct replacement for GM part number 97328578 and 97188692 Direct replacement for...$66.49 -
BOSTECH SK01013 BANJO RETURN SEALS 2001-2004 GM 6.6L DURAMX LB7
BOSTECH FUEL
$9.95Fuel Injection Return Line Gasket Kit Brand: BT-Power Condition: New Engine Fitment: GM Duramax LB7 The BOSTECH SK01013 Banjo Return Seals are an essential component for the 2001-2004 GM 6.6L Duramax LB7, providing an effective solution for...$9.95 -
DORMAN 904-112 AIR BLEEDER SCREW 2001-2016 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
DORMAN
$13.85This diesel fuel filter bleeder screw is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance. Direct replacement - this diesel fuel filter bleeder...$13.85 -
DORMAN 904-554 FUEL RETURN LINE BANJO BOLT (RETURN PIPE) 2001-2004 GM 6.6L DURAMAX LB7
DORMAN
$9.49Ensure proper fuel flow with this fuel line banjo bolt. Replaces corroded, stripped or damaged original bolt. Matches stock appearance, fit and function for a direct replacement. Exact match - This fuel line banjo bolt is a direct replacement for a...$9.49 -
KINGSPEED KSR-ANWS BUDGET BUILDER AN WRENCH SET (SET OF 8) FOR USE WITH -3AN TO -20AN FITTINGS
KINGSPEED
$80.00The Kingspeed KSR-ANWS Budget Builder AN Wrench Set is a must-have tool for anyone working with -3AN to -20AN fittings. This comprehensive set of 8 wrenches is designed to simplify the process of plumbing your vehicle and tightening AN fittings with ease...$80.00 -
KINGSPEED KSR-ANMW BUDGET BUILDER AN NITROUS MULTI-WRENCH FOR USE WITH -4AN & -6AN FITTINGS
KINGSPEED
$25.00The Kingspeed KSR-ANMW Budget Builder AN Nitrous Multi-Wrench is a must-have for any racing enthusiast or mechanic. This versatile tool is designed to facilitate quick adjustments on -4AN and -6AN fittings, offering convenience and efficiency when...$25.00 -
PPE 113059520 AIR BLEEDER SCREW BLACK FOR 01-16 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
PACIFIC PERFORMANCE ENGINEERING
$13.49The PPE 113059520 Air Bleeder Screw FOR FOR 01-16 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML engines is a durable and reliable solution FOR your vehicle's air bleeding needs. Say goodbye to the common issues of damage and distortion found in plastic bleeder...$13.49 -
PPE 113059524 AIR BLEEDER SCREW GOLD FOR 01-16 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
PACIFIC PERFORMANCE ENGINEERING
$13.49The PPE 113059524 Air Bleeder Screw in Gold is specifically designed FOR FOR 01-16 GM 6.6L Duramax engines including LB7, LLY, LBZ, LMM, and LML models. Say goodbye to the common issues faced with plastic bleeder screws, as this upgraded version is...$13.49 -
PPE 113063029 FUEL BLOCK SOLID FOR 06-10 GM DURAMAX 6.6L LBZ/LMM
PACIFIC PERFORMANCE ENGINEERING
$53.99The PPE 113063029 Fuel Block Solid is a robust and durable product designed specifically FOR the 2006-2010 GM Duramax 6.6L LBZ/LMM engines. Crafted from high-strength alloy steel, this fuel block is engineered to endure and thrive under the extreme high...$53.99 -
VIBRANT PERFORMANCE 22908 | -8AN PUSH-ON 90 DEG HOSE END FITTING - ALUMINUM
VIBRANT PERFORMANCE
$17.99-8AN PUSH-ON 90 DEG HOSE END FITTING - ALUMINUM$17.99 -
VIBRANT PERFORMANCE 22408 | -8AN PUSH-ON 45 DEG HOSE END FITTING - ALUMINUM
VIBRANT PERFORMANCE
$17.99-8AN PUSH-ON 45 DEG HOSE END FITTING - ALUMINUM$17.99 -
VIBRANT PERFORMANCE 22008 | -8AN PUSH-ON STRAIGHT HOSE END FITTING - ALUMINUM
VIBRANT PERFORMANCE
$6.99-8AN PUSH-ON STRAIGHT HOSE END FITTING - ALUMINUM$6.99 -
VIBRANT PERFORMANCE 21988 | 90 DEGREE ELBOW FORGED HOSE END FITTING HOSE SIZE -8AN
VIBRANT PERFORMANCE
$23.5990 DEGREE ELBOW FORGED HOSE END FITTING HOSE SIZE -8AN$23.59 -
VIBRANT PERFORMANCE 21912 | -12AN 90 DEGREE ELBOW HOSE END FITTING
VIBRANT PERFORMANCE
$26.59-12AN 90 DEGREE ELBOW HOSE END FITTING$26.59 -
VIBRANT PERFORMANCE 21910 | -10AN 90 DEGREE ELBOW HOSE END FITTING
VIBRANT PERFORMANCE
$22.99-10AN 90 DEGREE ELBOW HOSE END FITTING$22.99 -
VIBRANT PERFORMANCE 21908 | -8AN 90 DEGREE ELBOW HOSE END FITTING
VIBRANT PERFORMANCE
$19.99-8AN 90 DEGREE ELBOW HOSE END FITTING$19.99 -
VIBRANT PERFORMANCE 21906 | -6AN 90 DEGREE ELBOW HOSE END FITTING
VIBRANT PERFORMANCE
$17.99-6AN 90 DEGREE ELBOW HOSE END FITTING$17.99 -
VIBRANT PERFORMANCE 21904 | -4AN 90 DEGREE ELBOW HOSE END FITTING
VIBRANT PERFORMANCE
$16.99-4AN 90 DEGREE ELBOW HOSE END FITTING$16.99 -
VIBRANT PERFORMANCE 21406 | -6AN 45 DEGREE ELBOW HOSE END FITTING
VIBRANT PERFORMANCE
$17.99-6AN 45 DEGREE ELBOW HOSE END FITTING$17.99 -
VIBRANT PERFORMANCE 21010 | -10AN STRAIGHT HOSE END FITTING
VIBRANT PERFORMANCE
$11.99-10AN STRAIGHT HOSE END FITTING$11.99 -
VIBRANT PERFORMANCE 21008 | -8AN STRAIGHT HOSE END FITTING
VIBRANT PERFORMANCE
$9.79-8AN STRAIGHT HOSE END FITTING$9.79 -
VIBRANT PERFORMANCE 21006 | -6AN STRAIGHT HOSE END FITTING
VIBRANT PERFORMANCE
$8.59-6AN STRAIGHT HOSE END FITTING$8.59 -
VIBRANT PERFORMANCE 21004 | -4AN STRAIGHT HOSE END FITTING
VIBRANT PERFORMANCE
$7.99-4AN STRAIGHT HOSE END FITTING$7.99 -
VIBRANT PERFORMANCE 16860 | -6AN FEMALE TO -6AN MALE STRAIGHT CUT ADAPTER WITH O-RING
VIBRANT PERFORMANCE
$9.99-6AN FEMALE TO -6AN MALE STRAIGHT CUT ADAPTER WITH O-RING$9.99 -
VIBRANT PERFORMANCE 16616 | -6AN (0.38IN ID) TO 12MM X 1.5 METRIC STRAIGHT ADAPTER
VIBRANT PERFORMANCE
$7.99-6AN (0.38IN ID) TO 12MM X 1.5 METRIC STRAIGHT ADAPTER$7.99 -
CPP PLT8 PUSH LOCK FUEL PRESSURE TEE FOR 1/2" FUEL HOSE
CPP DIESEL
$16.95The CPP Diesel PLT8 Push Lock Fuel Pressure Tee 1/2" Universal is a high-quality component designed for seamless integration into your vehicle's fuel system. Crafted from durable aluminum, this pressure tee features a precision machined construction that...$16.95 -
WEHRLI WCF100230 04.5-10 CHEVROLET 6.6L DURAMAX HIGH FLOW RAIL FITTING (LONG)
WEHRLI CUSTOM FABRICATION
$59.17Enhance the performance of your Chevrolet 6.6L Duramax engine with the WEHRLI WCF100230 High Flow Rail Fitting. Specifically designed for the LLY, LBZ, and LMM models, this stainless steel rail fitting is engineered to optimize fuel delivery and...$59.17 -
WEHRLI WCF100229 01-05 & 11-16 CHEVROLET 6.6L DURAMAX HIGH FLOW RAIL FITTING (SHORT)
WEHRLI CUSTOM FABRICATION
$37.83The WEHRLI WCF100229 High Flow Rail Fitting is designed to enhance the performance of your 01-05 and 11-16 Chevrolet 6.6L Duramax engine. Specifically tailored for LB7 & LLY or LML fuel rails, this high-quality stainless steel fitting is a powerful...$37.83 -
FLEECE FPE-PL-00-06 -6 AN STRAIGHT TO HOSE BARB
FLEECE PERFORMANCE
$6.99-6 AN Straight to Hose Barb. Features: Hose End Size: -6 AN Fitting Style: Socketless barb Fitting Angle: Straight Adapter Size: -6 AN Fitting Material: Aluminum Fitting Color: Black anodized$6.99 -
FLEECE FPE-PL-00-08 -8 STRAIGHT TO HOSE BARB BLACK
FLEECE PERFORMANCE
$6.99-8 Straight to Hose Barb Black. Features: Hose End Size: -8 AN Fitting Style: Socketless barb Fitting Angle: Straight Adapter Size: -8 AN Fitting Material: Aluminum Fitting Color: Black anodized$6.99 -
FLEECE FPE-PL-45-06 -6 45 DEG TO HOSE BARB BLACK
FLEECE PERFORMANCE
$12.99-6 45 Deg to Hose Barb Black. Features: Hose End Size: -6 AN Fitting Style: Socketless barb Fitting Angle: 45 degree Adapter Size: -6 AN Fitting Material: Aluminum Fitting Color: Black anodized$12.99 -
FLEECE FPE-PL-45-08 -8 45 DEGREE TO HOSE BARB BLACK
FLEECE PERFORMANCE
$12.99-8 45 Degree to Hose Barb Black. Features: Hose End Size: -8 AN Fitting Style: Socketless barb Fitting Angle: 45 degree Adapter Size: -8 AN Fitting Material: Aluminum Fitting Color: Black anodized$12.99 -
FLEECE FPE-PL-90-06 -6 90 DEG TO HOSE BARB BLACK
FLEECE PERFORMANCE
$12.99-6 90 Deg to Hose Barb Black. Features: Hose End Size: -6 AN Fitting Style: Socketless barb Fitting Angle: 90 degree Adapter Size: -6 AN Fitting Material: Aluminum Fitting Color: Black anodized$12.99 -
FLEECE FPE-PL-90-08 -8 90 DEGREE TO HOSE BARB BLACK
FLEECE PERFORMANCE
$13.99-8 90 Degree to Hose Barb Black. Features: Hose End Size: -8 AN Fitting Style: Socketless barb Fitting Angle: 90 degree Adapter Size: -8 AN Fitting Material: Aluminum Fitting Color: Black anodized$13.99 -
FLEECE FPE-SP-91618 9/16 INCH -18 HEX SOCKET PLUG W/ O-RING
FLEECE PERFORMANCE
$4.499/16 Inch -18 Hex Socket Plug w/ O-Ring. Features: Part Type: Plug Fittings Fitting Size: -6 AN O-ring Head Style: Internal allen Fitting Color: Black anodized Fitting Material: Aluminum$4.49 -
FLEECE FPE-SP-3416 3/14 INCH-16 HEX SOCKET PLUG W/ O-RING
FLEECE PERFORMANCE
$4.993/14 Inch-16 Hex Socket Plug w/ O-Ring. Features: Part Type: Plug Fittings Fitting Size: -8 AN O-ring Head Style: Internal allen Fitting Color: Black anodized Fitting Material: Aluminum$4.99 -
FLEECE FPE-SP-7814 7/8 INCH -14 HEX SOCKET PLUG W/ O-RING
FLEECE PERFORMANCE
$5.997/8 Inch -14 Hex Socket Plug w/ O-Ring. Features: Part Type: Plug Fittings Fitting Size: -10 AN O-ring Head Style: Internal allen Fitting Color: Black anodized Fitting Material: Aluminum$5.99 -
FLEECE FPE-APT-916-06 -6 TO 9/16 INCH-18 STRAIGHT MALE BLACK W/ O-RING
FLEECE PERFORMANCE
$9.99-6 to 9/16 inch-18 Straight Male Black Fleece Performance w/ O-Ring. Features: Fitting Style: Adapter Fitting Category: AN to Inverted flare Fitting Angle: Straight Fitting Material: Aluminum Fitting Color: Black anodized Fitting Size 1: -6 AN Fitting...$9.99 -
FLEECE FPE-APT-34-08 -8 TO 3/4 INCH-16 STRAIGHT MALE BLACK W/ O-RING
FLEECE PERFORMANCE
$9.99-8 to 3/4 Inch-16 Straight Male Black w/ O-Ring. Features: Fitting Style: Adapter Fitting Category: AN to Inverted flare Fitting Angle: Straight Fitting Material: Aluminum Fitting Color: Black anodized Fitting Size 1: -8 AN Fitting Size 2: 3/4-16 in...$9.99 -
FLEECE FPE-NPT-18 1/8 INCH NPT HEX SOCKET PLUG BLACK
FLEECE PERFORMANCE
$2.991/8 Inch NPT Hex Socket Plug Black. Features: Part Type: Plug Fittings Fitting Size: 1/8 in. NPT Head Style: Internal allen Fitting Color: Black anodized Fitting Material: Aluminum$2.99 -
FLEECE FPE-NPT-14 1/4 INCH NPT HEX SOCKET PLUG BLACK
FLEECE PERFORMANCE
$2.991/4 Inch NPT Hex Socket Plug Black. Features: Part Type: Plug Fittings Fitting Size: 1/4 in. NPT Head Style: Internal allen Fitting Color: Black anodized Fitting Material: Aluminum$2.99 -
FLEECE FPE-NPT-38 3/8 INCH NPT HEX SOCKET PLUG BLACK
FLEECE PERFORMANCE
$2.993/8 Inch NPT Hex Socket Plug Black. Features: Part Type: Plug Fittings Fitting Size: 3/8 in. NPT Head Style: Internal allen Fitting Color: Black anodized Fitting Material: Aluminum$2.99 -
FLEECE FPE-NPT-12 1/2 INCH NPT HEX SOCKET PLUG BLACK
FLEECE PERFORMANCE
$4.491/2 Inch NPT Hex Socket Plug Black. Features: Part Type: Plug Fittings Fitting Size: 1/2 in. NPT Head Style: Internal allen Fitting Color: Black anodized Fitting Material: Aluminum$4.49 -
FLEECE FPE-NPT-34 3/4 INCH NPT HEX SOCKET PLUG BLACK
FLEECE PERFORMANCE
$4.993/4 Inch NPT Hex Socket Plug Black. Features: Part Type: Plug Fittings Fitting Size: 3/4 in. NPT Head Style: Internal allen Fitting Color: Black anodized Fitting Material: Aluminum$4.99 -
FLEECE FPE-34224-B ADAPTER FITTING -10AN MALE TO 1.325 INCH BORE
FLEECE PERFORMANCE
$33.95Anodized billet aluminum adapter fitting with retaining bolt. Adapter Fitting -10AN Male to 1.325 inch O-ring bore.$33.95 -
FLEECE FPE-QUCON-OE-38 3/8 INCH QUICK CONNECT TO -8AN MALE ADAPTER FOR OEM DODGE RAM CUMMINS SENDING UNIT
FLEECE PERFORMANCE
$17.99Anodized aluminum 3/8 inch quick connect to -8AN male adapter fitting. Fits 2003-2018 Dodge Ram with Cummins OE sending unit sending unit output to allow you to easily adapt aftermarket pumps and filters to the OE sending unit, including our Fleece...$17.99 -
FLEECE FPE-FIT-Y06-BLK 3/8 INCH BLACK ANODIZED ALUMINUM Y BARBED FITTING (FOR -6 PUSHLOCK HOSE)
FLEECE PERFORMANCE
$23.993/8 inch Black Anodized Aluminum Y Barbed Fitting (For -6 Pushlock Hose). Features: 3/8 inch Black Anodized Aluminum$23.99 -
FLEECE FPE-FIT-Y08-BLK 1/2 INCH BLACK ANODIZED ALUMINUM Y BARBED FITTING (FOR -8 PUSHLOCK HOSE)
FLEECE PERFORMANCE
$24.991/2 Inch Black Anodized Aluminum Y Barbed Fitting (For -8 Pushlock Hose). Features: 1/2 Inch Black Anodized Aluminum$24.99 -
FLEECE FPE-34781-AÂ Â 1/2 INCH QUICK CONNECT TO 3/4 INCH-16 O-RING (-8 AN)
FLEECE PERFORMANCE
$16.99Male AN straight thread O-Ring Boss (ORB) fitting with O-ring to quick connect. Short hex height to maximize install clearance Black anodized aluminum construction$16.99 -
PPE 513081000 AIR BLEEDER SCREW-YELLOW FOR 01-16 GM 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML
PACIFIC PERFORMANCE ENGINEERING
$13.49Enhance the durability and performance of your FOR 01-16 GM 6.6L Duramax engine with the PPE 513081000 Air Bleeder Screw in vibrant yellow. Crafted from high-quality billet aluminum, this air bleeder screw stands out FOR its exceptional strength and...$13.49 -
PPE 113060900 CP3 PUMP FUEL FEED LINE KIT 3/8 INCH WITH FITTING FOR 01-10 GM 6.6L DURAMAX LB7/LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$35.99Any restriction in the fuel flow costs you horsepower. The PPE CP3 High Flow Feed Line Kit eliminates the restriction of the factory fuel test-port/fuel block by re-routing the fuel from the fuel filter housing directly into the CP3 pump. Working in...$35.99 -
PPE 113060902 CP3 PUMP FUEL FEED LINE KIT 1/2 INCH WITH FITTING FOR 01-10 GM 6.6L DURAMAX LB7/LLY/LBZ
PACIFIC PERFORMANCE ENGINEERING
$35.99Any restriction in the fuel flow costs you horsepower. The PPE CP3 High Flow Feed Line Kit eliminates the restriction of the factory fuel test-port/fuel block by re-routing the fuel from the fuel filter housing directly into the CP3 pump. Working in...$35.99 -
FLEECE FPE-CP3-RTRN 3/8 INCH CP3 RETURN FITTING
FLEECE PERFORMANCE
$15.95High quality stainless steel fitting desinged to allow return fuel to freely flow from your CP3 Features: 3/8 inch Barbed Outlet Made from high quality 316 Stainless Steel Includes sealing washer$15.95