Availability
Holley Commander 950 air temperature sensors are designed as direct replacements for those in your Commander 950 fuel injection system. They screw into the intake plenum.
( 11 )
$57.49
On Sale
Holley aluminum fuel cells come in a several variations for nearly every race application, and Holley's fuel gauge sending units are the correct replacements to restore consistent level readings. Offered in an 8 or 9 in. depth for 5- and 10-gallon or 15- and 20-gallon fuel cells respectively, both styles have a tube design that acts as a damper, saves space, and eliminates the need for a float arm. They are 0 to 90 ohms (empty-full) to work with most aftermarket gauges, have a standard SAE 5-bolt mounting pattern, and include gasket and mounting hardware. Holley fuel gauge sending units are E85 compatible. Choose the best fit for your fuel cell.
( 1 )
$68.25
$61.45
On Sale
Holley Sniper fuel gauge sending units can be used as replacements for your existing units. Promising to be a big help during your installation, these gold iridited Sniper EFI senders are available in several ohm ranges. So, should you decide to upgrade your dash to aftermarket gauges, Holley has the right range for your project.
( 5 )
$74.95
$67.45
On Sale
Optimizing your dash solution to display your vehicle speed is simple with Holley GPS digital USB modules. The 46 in. USB cables allow you to install the digital display unit virtually anywhere on the dashboard—without the need for external sensor information. Eliminate old, noisy mechanical speedometer cables and step up to Holley's accurate GPS speedometer output module. Additional information: * USB connection for user-friendly, plug-and-play installation * Magnetic base provides for multiple mounting solutions * 10 Hz refresh rate for ultra-accurate, real-time speedometer output * Requires clear line-of-sight with the sky for satellite acquisition * Can only be used with 553-106 or 553-109 digital dashes
Not Yet Reviewed
$106.95
$96.25
On Sale
Holley offers several coolant temperature sensors designed for use with their Pro-Jection, Sniper, and other fuel injection systems. They feature brass construction with 3/8 in. thread and will provide the ideal fit and function to monitor your engine's coolant temperature. Select the one designed for your system.
( 19 )
$51.75
On Sale
Holley analog standalone gauges provide you with a simple yet modern way to monitor all types of engine and drivetrain functions. Their slim-style mounting requires very little depth, and all of the gauges feature dimmable LED backlighting to ensure you can always see the indicator, no matter the environment. Holley analog standalone gauges are available in a variety of data types and ranges for temperature and pressure monitoring, along with programmable fuel level and voltage options. Features include: * Designed for a 2 1/16 in. openings * Available with black face with white lettering or white face with black lettering. * LED dimmable backlit design with red pointers makes them easy to read day or night * All gauges are electric-style and include sending units depending on gauge type * Pointer is driven by either a high-torque internal stepper motor or internal microprocessor (depending on model) to ensure accurate movement in street and racing conditions * Spin lock ring threads to back of gauge case for simple and secure gauge mounting * CNC-machined billet aluminum bezels with anodized finish * Bezels are threaded for easy replacement; multiple bezel options available * Each gauge is tested to ensure a top-quality and accuracy
( 2 )
$192.95
$106.95
On Sale
Holley EFI analog display gauges use digitally-delivered information over Holley's sophisticated CAN bus or wire directly to your sending unit, providing your ride with a classic readout. Those using the bus get their data from the Holley ECU, meaning that you don't have to run wires all over the vehicle. All you have to do is run a single cable to the ECU and then daisy-chain the rest. Holley analog gauges are available to monitor a variety of automotive temperature and pressure functions, along with programmable fuel level and voltage options. Product features include: * Available with black face with white lettering or white face with black lettering. * LED dimmable backlit design with red pointers makes them easy to read day or night * All gauges are electric style and may include sending units depending on gauge type * Pointer is driven by either a high-torque internal stepper motor or internal microprocessor (depending on application) to ensure accurate movement in street and racing conditions * CNC-machined billet aluminum bezels with an anodized finish on some models * Threaded bodies allow a single bezel nut to hold the indicators firmly in place * Bezels are threaded for easy replacement with multiple bezel options available * Each is tested to ensure a top-quality, accurate gauge
( 15 )
$179.95
$98.95
Holley analog vacuum gauges help you keep an eye on how your vehicle is performing. They feature a white face, black digits and pointer, and a chrome bezel for easy reading in all environments. Monitor your vacuum system in retro style with a Holley analog gauge!
( 10 )
$68.69
On Sale
Holley offers analog fuel pressure gauges in a variety of diameters, styles, fittings, and standard or liquid-filled versions. They feature classic faces and chrome or black bezels, depending on the model. Now you can monitor your fuel density in retro style with a Holley analog fuel pressure gauge!
( 83 )
$59.25
—
$73.25
On Sale
Holley Sniper 2 EFI input/output wiring harnesses give you access to two ground trigger inputs, two ground trigger outputs, the points output, tachometer output, and digital gauge output wires. The input grounds can be used for things such as AC Kick and nitrous stage activation. The output grounds can be used for electronic fan control, or A/C shutdown at WOT. This harness includes an additional 0-5 V TPS output commonly used for transmission control units, and a tach output wire to drive most common aftermarket tachometers. Additional details: * Wires come individually labeled for easy identification * 4 x 5 ft. long output wires * 2 x 5 ft. long input wires
( 4 )
$80.49
$72.45
On Sale
Holley adjustable fuel injection regulators are able to provide all of the fuel pressure that your high performance, fuel injected vehicle will require. They utilize a special wave spring to maintain constant fuel pressure. Some models are universal fit, while others are designed for specific vehicle applications. The regulators are available for inline or fuel rail mount, with various psi ranges. Select the adjustable unit tailored to your driving needs.
( 44 )
$97.15
—
$99.95
Holley Terminator X wideband adapter harnesses are intended to be used as service components for your Terminator X EFI installation. The Terminator X ECU (electronic control unit) features real-time fuel learn, high impedance injector drivers, an integrated 1bar MAP sensor, and 4 programmable inputs and outputs. The inputs and outputs are ideal for electric fans, boost control solenoids, or progressive nitrous control. The Terminator X Max ECU features real-time fuel learn, high impedance injector drivers, an integrated 1bar MAP sensor, electronic transmission control, drive-by-wire throttle body control, and 4 programmable inputs and outputs. The inputs and outputs are ideal for electric fans, boost control solenoids, progressive nitrous control, and much more. This is the wideband adapter harness only.
( 1 )
$62.55
On Sale
Holley offers a variety of direct replacement EFI wiring harnesses, including multi-port, sequential, and throttle body injection styles. These units are made with premium components to ensure better reliability and performance for your ride--and they're compatible with many engine swaps. Holley EFI systems wiring harnesses are sold individually or as a kit; choose the model needed for your fuel injection application.
( 31 )
$99.95
$89.95
On Sale
Holley air cleaner assemblies prevent debris from entering your air intake system—and look fantastic beneath your hood! These economical units are available in 2, 3, and 4-barrel fitments, as well as a variety of heights, shapes, diameters, materials, and finishes. The cleaners utilize an open element design, with a paper or washable cotton gauze filter included. Steel components are offered in a chrome plated or black powdercoat finish. Enhance your vehicle's airflow with a stylish Holley air cleaner assembly.
( 67 )
$76.45
$54.35
—
$83.45
On Sale
Holley ECU mounting brackets allow you to comfortably install either the Dominator ECU, Holley HP, Terminator X, or Terminator X-MAX under your Mustang's front passenger seat. They're designed to work with stock seats and seat tracks (modified/race seats may or may not accommodate them). You simply route all your ECU harnesses through the firewall--properly route the wires, install the unit followed by the ECU, and then reconnect your wires and go! Use your laptop to fine-tune the ECU without popping the hood and protect it from engine bay heat with Holley ECU mounting brackets. Order the brackets recommended for your application.
( 3 )
$110.95
$99.85
—
$103.95
On Sale
Holley Sniper stock replacement fuel tanks are designed to meet or exceed the quality of your factory original. Whether you have a track or street car, or a car you're restoring, Sniper has the high-quality fuel tanks you're looking for. Start your fuel system project fresh with a Holley Sniper stock replacement fuel tank—order the model designed for your application. Features include: * The steel fuel tanks have a galvanized finish for corrosion protection and good looks * Stock replacement fuel tanks are made to OEM specifications for a great fit * Perfect companions with Holley muscle car EFI modules or Retrofit EFI pump modules * Tank sending unit lock ring is included
( 62 )
$159.95
$87.95
Holley throttle body base plate gaskets are designed to fit the exact bore diameter of the Holley TBI Pro-Jection units. They are made of a composite material to withstand engine compartment temperatures while providing a leak-free seal.
( 3 )
$76.45
Want to make the switch from the original Sniper EFI to Sniper 2 and don't want to rewire your system? This harness is designed to do exactly that! The Holley Sniper adapter harness is a plug-and-play solution to connect your existing Sniper 1 wiring harness to a Sniper 2 throttle body! It can be used with any Sniper 2 system that is not equipped with a power distribution module (PDM). Simply remove your Sniper EFI throttle body from the intake manifold, unplug all of the connectors, and plug the Sniper EFI 2 adapter harness into your existing main harness. Cycle your ignition key, run a fresh wizard on the display of your choosing, and enjoy the benefits of Sniper EFI 2. Make the switch to Sniper 2 in minutes! Sniper EFI 2 is a high performance electronic fuel injection system designed for a wide range of engines and horsepower goals. It provides improved engine performance, better fuel efficiency, and easier starting, making it the perfect upgrade for any enthusiast looking to take their ride to the next level. With its easy installation and advanced technology, the Sniper EFI 2 is the ultimate fuel injection system for any conventional V8 engine. Features: * Update your Sniper 1 to Sniper 2 in less than an hour: One-step, plug-and-play upgrade from your existing Sniper EFI install to a Sniper 2 throttle body * Eliminates the need to rewire your existing Sniper EFI installation * The wiring harness included with the Sniper 2 kit will not be used. This adapter is intended to be used with the original Sniper EFI wiring harness and new Sniper 2 EFI throttle body Sniper 2 EFI benefits: * (NEW) Next Generation ECU features improved RF noise and interference resistance (stands up to old car wiring, noisy alternators, faulty plug wires)  * (NEW) "Hidden Harness" wiring harnesses exit from the rear of throttle body for a clean appearance  * (NEW) Inputs and outputs consist of: 2x ground inputs, 2x ground outputs, 1x TPS output (0-5 V) and 1x tach output  * (NEW) Next Generation mil-spec style M8 positive lock connector for CAN1 and CAN2 provides the latest in CAN bus technology for a simple yet robust connection 
( 3 )
$56.09
Modal Header
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
