Availability
Holley offers a selection of both dedicated and universal-style fuel lines for their carburetors. Hard lines are chrome plated and double flared at the outlets. Braided stainless steel lines offer premium features such as rugged billet-style construction and AN aluminum fittings.
( 168 )
$56.65
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$281.95
Holley EFI fuel system plumbing kits are the perfect complement to your Sniper EFI or Holley EFI kit. These plumbing assemblies are engineered using Holley fuel pumps, regulators, and filters—coupled with Earl's Performance plumbing, to provide a fuel system tailored to your vehicle's specific needs. Components vary, depending on the kit you select.
( 34 )
$249.95
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$528.95
Holley EFI Stealth 4150 fuel logs provide ample clearance between the fuel hose, and the TPS sensor mounted on the side of the throttle body. For use with either Sniper EFI Stealth 4150 or Terminator X Stealth 4150 systems, these fuel crossovers are easy to install, with their -6 AN male inlet that connects to your existing fuel system. They come pre-assembled by Holley to ensure a leak-free installation.
( 7 )
$75.05
Holley Sniper EFI Stealth fuel crossover kits are designed to be used with either Sniper EFI Stealth 4150 or Terminator X Stealth 4150 systems. These pre-assembled fuel crossovers are designed to provide ample clearance between the fuel hose, and the TPS sensor mounted on the side of the throttle body. Available in two variations, both contain a braided fuel hose with crimp-on ends for a leak-free installation and two fuel bowl standoffs. One variation includes a T-fitting and the other a black anodized billet fuel regulator, preset to 58.5 psi, and a mounting bracket.
( 1 )
$127.95
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$319.95
On Sale
Holley offers air conditioner compressor manifolds in a variety of styles and finishes. These replacement line adapters are machined from aluminum or copper and will facilitate your A/C compressor hookup. Mounting hardware is included. Applications include vehicles with a GM LS engine.
( 8 )
$42.44
$23.34
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$38.67
Holley Terminator EFI fuel system plumbing kits provide everything needed for a complete supply fuel system for the Terminator EFI self-tuning engine management system. They are engineered using Holley electric fuel pumps, fuel pressure regulators, and fuel filters, coupled with quality Earl's hose, to provide a fuel system tailored to the needs of your Terminator EFI system. The systems are available with different fuel pumps and types of fuel hose, so you can choose what best fits your application. All Holley Terminator EFI fuel system plumbing kits feature quality Earl's anodized aluminum fittings to get the job done and look good, too.
( 10 )
$725.95
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$1,399.95
On Sale
Holley power steering hard lines offer a clearance solution. The pressure hose connection on the Type II power steering pump is really close to the pulley making it difficult to attach the hose. Holley power steering hard lines move the connection behind and below the pump for clearance and improved appearance. The special banjo bolt and crush washers provide additional clearance. Holley also includes a mounting bracket that makes the hardline stronger and less likely to crack from vibration or abuse. The kits are made from strong steel and zinc plated.
( 3 )
$127.95
$70.85
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$119.95
Holley has fittings to adapt different sized fuel lines to bare Holley fuel bowls, as well as hose and banjo fittings for special applications.
( 105 )
$18.99
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$66.55
Holley offers Fox Body fuel system kits for a variety of applications, including many Ford Mustang models from the 1980s and '90s. These upgrades are designed as direct replacements for your factory fuel system—and include everything required: in-tank fuel pump module, billet fuel filters, fuel pressure regulator and gauge, fuel line, fittings, hardware, EFI-rated clamps, and all-new wiring components. They're designed to use factory fuel line routing and mounting locations for a clean, OEM-like installation. Additional details: * Choose from either a 90 or 139 GPH flowrate pump * Prepares your 1986-93 Ford Fox Body Mustang with a bulletproof fuel system for any engine application * Pump gas and E85 compatible fuel system * Includes 40 ft. of -6 AN or -8 AN nylon braided hose, enough to go from the tank to the engine for both feed and return * Electric fuel pump harness and relay wiring kit ensures the fuel pump receives the proper amperage for improved reliability and consistent performance
Not Yet Reviewed
$1,399.95
These Holley fuel bowl fittings are an exact fit to ensure a perfect seal. An O-ring is included, so you won't have a fuel leak again.
( 38 )
$16.78
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$38.13
Holley EGT bungs are quality replacement service parts designed exclusively for use with Holley's 8-Channel Exhaust Gas Temperature Monitoring kit (sold separately). Made from 316 stainless steel, these weldment bung fittings feature a built-in step—which keeps the bung held in place during the welding process, ensuring a perfect weld. They're sold individually or in multiple-piece count sets.
Not Yet Reviewed
$27.90
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$184.95
Holley MAP sensor port plugs are milled from billet aluminum for strength, powdercoated for corrosion resistance, and include an O-ring for a tight seal. They're designed to eliminate LS3-style MAP sensors and work with most intake manifolds.
( 5 )
$36.14
Holley manifold plug and fitting kits allow two different styles of connections within one unit. They are offered to service your mid-mount accessory drive LT/LS, BBC, and SBC cooling manifolds. These genuine Holley fittings are constructed from aluminum and feature a chrome finish for longevity.
( 2 )
$18.18
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$43.69
Holley fuel rail adapter fittings are designed to connect Holley fuel rails to a GM factory fuel line. They're machined from aluminum (black anodized) or steel (yellow dichromate), and are available in different sizes, angles, and attachment options.
( 2 )
$39.50
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$52.25
Holley roll over valves are optional fittings designed for their in-tank retrofit fuel modules. Holley has made it easy to convert to an EFI fuel system, and to maintain safety by adding these valves to vent your fuel tank and prevent leaking in case of an accident or roll over. They are crafted from aluminum and black anodized for add durability.
( 1 )
$34.45
Holley in-tank fuel lines are submersible in-tank hose kits designed for use with in-tank fuel pump applications. The kits consist of reinforced fuel hose.
( 5 )
$11.19
Holley AN to straight cut O-ring fittings are great fuel pump accessories. They are hard anodized aluminum for wear and corrosion resistance--so your Holley fittings last longer!
( 4 )
$22.39
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$32.66
Holley offers air conditioning line kits for a variety of applications, including many Ford small block Windsor engines from 1963-2001. These aluminum replacement lines are configured according to factory specifications to ensure proper fitment and climate performance. Assemblies are available separately to route A/C lines to the driver and passenger sides. They meet or exceed OE quality standards.
Not Yet Reviewed
$84.19
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$91.75
The Holley EFI vacuum manifold kit is designed for as a simple and clean solution for plumbing either vacuum or boost referenced sources. This manifold block features 12 1/8th NPT ports that can be plumbed with most common EFI transducers, such as the Holley 554-102 0-100 psi transducer. It also features two -6 O-ring boss AN ports, ensuring your manifold block has an excellent vacuum or boost reference source. Improve your engine bay organization by mounting all of your common pressure sources in one easy-to-access location! Product features: * Compatible with all transducers that utilize 1/8 NPT male threads and 7/8 in. or smaller body/hex diameter * 12 independent 1/8 NPT ports * Two -6 ORB ports * Improve engine bay organization by mounting transducers and/or vacuum lines all in one easy-to-reach location * Ideal for engines that require multiple vacuum/boost reference sources * 4 mounting holes designed for the use of 5/16 in. socket head cap hardware for secure and robust mounting * Crafted from 6061 aluminum * Anodized black for durability and laser-etched with the Holley EFI logo
Not Yet Reviewed
$73.19
Holley offers replacement heater hose adapters for high-mount accessory drive systems. They are designed to fit the Holley 7.3L Godzilla engine, which makes them ideal for engine swaps. Mounting hardware included.
Not Yet Reviewed
$113.05
Ever needed to install an oxygen sensor and couldn't figure out how to do it. Install it the easy way with these Holley weld-in oxygen sensor bungs. They're designed to be welded into any steel pipe and come with the proper threads for any OEM or aftermarket oxygen sensor.
( 7 )
$15.77
Holley G-body fuel system kits remove the guesswork when updating your G-body's system. Designed as a direct replacement for your factory fuel system, these kits contain everything required to go from fuel tank to engine bay. They are engineered for use with factory fuel line routing and mounting locations, creating a clean, OEM-like installation. Prepare your G-body with a bullet-proof fuel system for any EFI conversion with Holley fuel system kits. Features: * Pump gas and E85 compatible fuel system plumbing kit * 40 ft. of 6 AN nylon braided hose, enough to go from the tank to the fuel rails for both feed and return * Utilizes as many of the original sheet metal and chassis fuel system routing provisions with minimal to no drilling required * Electric fuel pump harness and relay wiring kit ensures the fuel pump receives the proper amperage, for improved reliability and consistent performance * Pre-calibrated fuel level sending unit works with factory fuel gauge for a simplistic installation—no guesswork about ohm range * Highly detailed installation instructions to guide you, step by step, along the installation process Kits include: * 350 lph EFI fuel pump module * Billet fuel filter * Fuel pressure regulator * Fuel pressure gauge * Nylon braided hose * AN fittings * Hardware * EFI-rated clamps * Fuel level sender * Fuel pump harness and relay wiring kit
( 2 )
$749.95
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$849.95
On Sale
Holley weld-on fill cap kits include a cap CNC-machined from 6061-T6 billet aluminum with a bright, black anodized finish for great looks and corrosion protection. They're available with aluminum or steel weld bungs to match your application. Holley weld-on fill cap kit features include: * Allows for installation of a fill cap or inspection plug anywhere needed * Caps feature a laser-etched "Holley Equipped" logo * Easy-to-grip screw-on cap with O-ring seal and a 1.38 in. diameter opening * 1.950 in. O.D. / 1.400 in. I.D. weld bung * 1.810 in. diameter at the step of weld bung * 0.675 in. weld bung overall height * 0.570 in. height at the step of weld bung * 1 1/2-12 in. thread
( 2 )
$56.19
$30.90
Holley fuel bowl plugs are designed to plug the open holes on your carburetor fuel bowls. They are manufactured from quality materials and come available in different thread sizes to match your specific carburetor.
( 5 )
$13.96
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$21.00
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