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Holley fuel injection connector kits are your EFI multi-port connectors. Complete connector and pin kits are available for Holley MPFI and Stealth Ram Power Pack kits. Includes connector and pins for: * Manifold Absolute Pressure (MAP) sensor * Idle Air Control (IAC) sensor * Throttle Position Sensor (TPS) * Coolant Temperature Sensor (CTS) * Air Intake Temperature (AIT) sensor
Not Yet Reviewed
$56.25
ICT Billet sensor harness extensions make change happen. They offer a selection of pre-terminated sensor to get you plugged in properly. From engine or intake swaps, ICT Billet harnesses have you covered.
( 4 )
$32.99
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$43.99
On Sale
Painless Performance manifold heater relays help the manifold heater to vaporize fuel in the intake manifold when the engine is cold. This will help with cold starts and idling until the engine is up to operating temperature. This kit allows a manifold heater to be used if you are rewiring your Jeep using a Painless chassis harness, using a later style manifold on an older Jeep, or if the factory relay was cut from your Jeep at some point in time by you or a previous owner.
( 1 )
$39.99
$35.99
Nitrous Express nitrous solenoid brackets provide handsome options for mounting. Whether on the intake, cylinder head, throttle body, or carb flange, NX offers strong, precision-cut steel and aluminum versions to secure your solenoids in the perfect location. Make your nitrous install quick and easy, while looking clean and attractive with Nitrous Express nitrous solenoid brackets.
( 18 )
$76.43
ICT Billet vacuum port fittings are built from high-quality billet aluminum. To make your vacuum line project simple, ICT Billet has made these available in multiple configurations to fit your needs.
( 2 )
$19.99
If you're in need of a replacement relay, Dorman relays are a perfect choice. They are constructed of high-quality materials for long-lasting durability and made to exceed OEM specifications for accurate and maintenance-free operation. Dorman offers a comprehensive line of relay connectors for a wide range of applications.
( 8 )
$5.99
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$102.50
On Sale
Clearance
High-quality, direct-replacement Standard Motor wiring connectors help eliminate the need for a harness by letting you swap only the damaged connector for a cost-effective repair solution. The terminals feature high-grade materials like copper alloy, brass, and phosphor bronze. Together they provide the connectors with prolonged life and superior performance in harsh environments for each specific application. Standard Motor electrical connectors are 100 percent tested for the proper mechanical and electrical fit, form, and function for your vehicle.
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$20.99
$5.99
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$21.99
Don't take chances with old or questionable relays that can leave you stranded. Standard Motor Products relays are designed to exceed OEM specifications for accurate, maintenance-free operation. These replacement units are available in dozens of configurations for easy installation on countless applications. Trust your vehicle's needs to Standard Motor Performance.
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$10.99
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$305.99
On Sale
Painless Performance EFI harnesses are designed for the 1998-2002 LS1 mechanical throttle body engines using a 1999 and up LS1/LS6 ECM with a 4L60E/4L65E automatic or T56 manual transmission. These engines were found in 1998-2002 Camaro and Firebird. These GM LS1/LS6 harnesses will also work on 1997-2004 Throttle-By-Wire (TBW) LS1/LS6 engines which have been changed to mechanical throttle body or any 1999-2006 (4.8, 5.3, and 6.2) Vortec truck engine which has been changed to a factory or aftermarket LS1 intake manifold, mechanical throttle body, and injectors.
( 1 )
$769.98
$692.98
FuelTech provides the plug kits needed to finish up your wiring project. Whether you want to measure your vehicle's throttle position, intake air temperature, water temperature, or plug into some other type of sensor, these sets deliver top-notch quality in a variety of configurations for easy installation. Developing and designing high-performance products since 2003, FuelTech offers plug kits engineered to fulfill the needs of your application.
Not Yet Reviewed
$8.00
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$12.00
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
On Sale
These FAN-THOM II electric fan relay kits come with a threaded thermostat that screws into the engine block or intake manifold for a clean and professional look. These kits provide protection for your electric fans and wire harnesses. They supply constant voltage, protect against voltage and amperage spikes, and prevent the fan from back-feeding voltage through your vehicle's wire harnesses. These kits include: * SPST 40 amp relay * 30 amp circuit breaker * Thermostatic switch * Relay base with harness * Crimp-on terminals * Mounting hardware
( 77 )
$46.99
$42.29
Avoid conductivity issues that can cause your engine to run poorly and be difficult to diagnose. ICT Billet MAF/IAT breakout harnesses are assembled with OEM tooling and use OEM harness wire colors, as well as OEM Delphi connector, lock, seals, and terminals. ICT Billet MAF/IAT harnesses are offer in different styles for retaining MAF in factory position while breaking (relocating) IAT sensor to different location, converting small 3-wire MAF to larger 5-wire MAF/IAT sensor, or when you need more length when relocating intake/air filter to opposite side of engine from factory harness and IAT is relocated external to the MAF sensor. Choose the one that meets your "breaking" needs.
Not Yet Reviewed
$65.99
2009+ Gen III Hemi engines rolled off the showroom floor with Variable Valve Timing (VVT). Both the Terminator X and Terminator X Max ECUs will allow you to control and tune the VVT with the use of Holley EFI Gen III Hemi VVT harnesses. These plug-and-play harnesses (to the factory sub-harness) provide control of VVT solenoid under the intake manifold.
Not Yet Reviewed
$125.95
On Sale
Holley EFI Gen III Hemi VVT and SRV harnesses offer control. 2009+ Gen III Hemi engines rolled off the showroom floor with Variable Valve Timing (VVT). Now, both Holley Terminator X and Terminator X Max ECUs will allow you to control and tune the VVT with the use of the plug-and-play VVT harness. But the fun does not stop there! If you are using a stock intake manifold that came from the factory with the Short Runner Valve (SRV), Holley also has a plug-and-play sub harness that will allow you to utilize the SRV actuator and capitalize on its low rpm torque benefits. Features: * Plug-and-play with the factory Gen III HEMI VVT sub-harness, and any Holley EFI HEMI main harness connecting to the power tap and input/output connectors * Provides control of VVT solenoid under the intake manifold * SRV (Short runner valve) connector pre-wired into the sub harness allowing you to simply plug into the factory SRV actuator in the intake manifold
Not Yet Reviewed
$163.95
$147.55
FuelTech fuel injector boots are sealing grommets designed to create a tight, secure connection between FuelTech fuel injectors and the intake manifold, preventing fuel leaks and ensuring proper engine performance. They're a component of the fuel delivery system, essential for high-performance engines that use FuelTech's injectors, which are compatible with various fuels including gasoline, ethanol, and nitromethane. Key features: * They provide a seal between the injector body and the intake manifold, preventing air and fuel leaks * The boots are an integral part of the fuel delivery setup, working in conjunction with the injectors to deliver fuel to the engine's combustion chamber * They are used in high-horsepower engines, often in racing applications, which require robust and leak-free components * Compatibility: The boots are specifically designed to work with FuelTech's line of high and low impedance fuel injectors * Add these injector boots to your custom harness to protect the wiring and for a clean installation
Not Yet Reviewed
$3.00
Fleece Performance valve cover conversion harnesses are available to convert your 6-pin injector connector to a 4-pin or vice versa. These harnesses are designed for early or late rocker box styles, plug into the factory harness, are designed to run on backside of engine, and the factory connector goes under the intake shelf. They produced in-house at Fleece with their manufacturing process including fully automated wire cutting and terminal crimping to ensure you get the highest quality replacement parts needed. Select the harness designed for your truck's rocker box style.
Not Yet Reviewed
$139.99
Lingenfelter offers this quick plug-in harness to adapt your factory harness to accept the new 100mm mass airflow sensor. These harness adapters come in two versions. The first is the 5-wire to 5-wire harness; and the second is the 3-2 to 5 harness. The 2-wire connector is for the air intake temperature sensor connection.
( 1 )
$39.99
FAST wiring harness adapter pigtails (P/N 308031) adapt an older TPI/MAP sensor to a modern connection, such as a Metripack/LS-style harness. The sensors, by monitoring intake manifold vacuum, measure the amount of load being placed on the engine. The MAP sensors relay engine load output to the ECU, which in turn adjusts fueling for optimum performance and economy.
( 4 )
$23.95
Boating Essentials engine flushers are your essential tool for maintaining your boat's engine, offering a fast and effective way to prevent harmful buildup. In addition to the engine flushers performance benefits, they are also incredibly easy to use. Simply attach the engine flusher unit to your motor's water intake, turn on the water, and let it run for a few minutes to flush out any debris and salt buildup. Their durable construction will provide reliable performance season after season, making them a great investment for any boat owner. Keep your boat's motor in top condition and help extend its lifespan using Boating Essentials engine flushers. Key features and benefits: * Made from high-quality materials, built to last and withstand the harsh marine environment * Provides a quick and easy way to flush out your boat's engine after use, helping to prevent buildup of salt, sand, and other debris that can cause damage to your motor over time * Compatible with most outboard and inboard motors for versatile use * Simple to use—attach to the motor's water intake and let it run for effective flushing
Not Yet Reviewed
$6.29
Discover the perfect solution for maintaining your boat's engine with Boating Essentials large PVC motor flushers. Designed for efficiency and ease of use, they ensure thorough flushing of your outboard motor. Simply attach the unit to your motor's water intake and connect a standard garden hose for a quick and effective flushing process. The durable PVC construction guarantees long-lasting performance and resistance to harsh marine conditions. Whether you're preparing your boat for the season or performing regular maintenance, the Boating Essentials large PVC motor flushers are a must-have accessory for boat owners. They're designed to keep the engine in top-notch condition and help prevent potential damage caused by saltwater and debris buildup. Key features and benefits: * Durable PVC construction promises long-lasting performance in marine conditions * Flushes away sand, salt, silt, alkali, and mud to prevent engine damage * Easy connection to a standard garden hose for effective flushing Important Note: NEVER install this product while the engine is running.
Not Yet Reviewed
$8.09
JMS Chip offers electrical wiring pigtails for a variety of applications. These can be used to replace a worn or modified MAF connector, convert your vehicle from one sensor to another, or facilitate a custom build. Whether it's tracking mass airflow or streaming engine data to your onboard computer, JMS Chip supplies the equipment and accessories you need for top performance.
( 2 )
$30.75
On Sale
Summit Racing™ offers reproduction wiring harnesses for a wide selection of vehicles, particularly classic cars and trucks from the 1960s and '70s. These replacements and/or extensions are used to power a variety of applications—including horn, glove box, console, backup lights, engine; forward, hood, and courtesy lamps; fuel tank sender, and more. These OE style replacement harnesses are made of high-quality Automotive Grade Wire using factory style fuse blocks, plug ends, and wire colors to ensure factory type fit, performance, and durability. For repair or restoration, order the harness recommended for your specific car or truck. Note: These harnesses are factory replacements and do not include instructions or wiring diagrams refer to the factory diagrams and or service manuals for your specific vehicle.
( 52 )
$349.99
Summit Bucks
The average vehicle today has hundreds of wiring connectors. ACDelco connectors are available for everything needed, from antennas to trailer wiring, as well as an array of multi-purpose connectors to maintain the optimal operation of your vehicle. Choose GM-recommended replacement wiring connectors to ensure the same performance, durability, and service life you've come to expect from General Motors products.
( 38 )
$18.99
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$25.50
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