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Wiring Harness Adapters and Extensions
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Holley MAP Sensor Adapters
Holley offers MAP sensor adapters for a variety of Chevrolet LS engine applications from 1997 and up. They feature pre-terminated connectors and wiring for a direct plug-and-play installation. Depending on the model you select, the adapter will allow: * The installation of an LS3 MAP sensor in an LS2 or LS1 equipped vehicle * The installation of an MPFI WeatherPack 3-pin connector MAP sensor to the 3-pin Delphi GT connector * The installation of a Delphi MIP 3-pin connector MAP sensor to the 3-pin Delphi GT connector
( 23 )
$36.90
$19.95
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$49.95
BTR Fuel Injector Plug Adapters
BTR fuel injector plug adapters allow installation of aftermarket injectors without modifying the factory wiring harness in your vehicle. The plug-and-play adapters have the female plug to match the injector. They are available individually or in sets.
( 2 )
$5.99
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$39.99
Summit Racing™ MAP Sensor Adapters
Summit Racing™ MAP sensor adapters enable you to use a Holley LS2 harness with LS3 engines. These adapters feature pre-terminated connectors and wiring for a direct plug-and-play installation.
( 5 )
$28.99
ICT Billet Fuel Injector Plug Adapters
ICT Billet fuel injector plug adapters are plug-and-play connections which need no wiring. The sets include eight adapters to connect different fuel injectors to various wiring harnesses. Order the adapters designed for your particular application.
( 17 )
$100.00
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$100.99
Chevrolet Performance Camshaft Position Sensor Pigtails
The camshaft position sensors on your engine will only work with the correct pigtail connections. Chevrolet Performance offers these pre-made pigtails to properly fit the crank position sensor or the cam position sensor on select models. Trust Chevrolet Performance for OEM wiring replacement parts and more!
( 5 )
$49.99
ICT Billet LS VVT to Non-VVT Camshaft Sensor Adapters
ICT Billet LS VVT to non-VVT camshaft sensor adapters convert your VVT harness to a non-VVT sensor. These harnesses are plug-and-play and are assembled using OEM tooling with OEM Delphi connectors and terminals. Order the model recommended for your vehicle and engine application.
( 4 )
$50.99
ICT Billet Throttle Body Extension Harnesses
ICT Billet throttle body extension harnesses are assembled with OEM tooling, OEM Delphi components (connector, lock, seals, and terminals), and OEM harness wire colors. Don't take a chance with cheap wire connectors; poor quality materials can have conductivity issues that will cause your engine to run poorly and be difficult to diagnose. ICT Billet throttle body extension harnesses provide quality you can trust. Order the model recommended for your application.
( 2 )
$44.00
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$79.99
ICT Billet MAP Harness Extensions
ICT Billet MAP harness extensions are ideal for use on many Chevrolet LS-based engines from 1997 and up. They're made with OEM tooling, connectors, lock seals, and terminals—and utilize factory harness wire colors. Don't chance a poorly running engine due to cheap wire connectors; choose the quality of ICT Billet MAP harness extensions.
( 4 )
$50.99
Trick Flow® Fuel Injector Harness Adapter Kits
Trick Flow® solves your fuel injection conversion problems with these fuel injector harness adapter kits. Now you can make the change from smaller EV6 injectors to big EV1 injectors in your LS2 or L92 engine without having to cut a single thing. Each kit includes one adapter, O-ring, and spacer.
( 1 )
$13.99
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$99.99
Caspers Electronics Fuel Injector Adapters
Caspers Electronics fuel injector adapters will allow you to incorporate non-OEM fuel injector plugs into your stock wiring harness. These fuel injector adapters are available with your choice of pigtail or preterminated connections.
( 10 )
$10.99
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$11.99
Caspers Electronics Camshaft Position Sensor Adapter Harnesses
Caspers Electronics camshaft position sensor adapter harnesses allow the cam sensor used on the front of a LS2 motor to be plugged into the LS1 cam sensor connection located at the back of the intake manifold. These harnesses are perfect for LS2 motor conversions—and are compatible with the PCM harness in LS1 Corvette and F-Body cars. They are fully plug-and-play with factory connector and sensor. The high-temperature nylon loom remains flexible, while not melting sitting on top of the motor.
( 7 )
$29.79
Caspers Electronics Throttle Body Extension Cables for GM LS2/LS7 Engines
Are you installing a supercharger that requires you to cut the OEM wires and lengthen the connector? Caspers Electronics throttle body extension cables for GM LS2/LS7 engines are your solution. They make it easier and can also be used to tap off the GM LS2/LS7 electronic throttle control cable for nitrous. These GT 6-way throttle cable mate connectors are built to factory specifications with materials rated for underhood applications. Completely plug-and-play, the cables are available in popular lengths.
( 3 )
$47.79
ICT Billet Wiring Harness Extensions
ICT Billet offers wiring harness extensions for use with many Chevrolet LS-based engine applications from 1997 and up. These connectors are available in a variety of lengths, with 2, 3, 4, 8, or 10 pins. They can help with installing camshaft sensors, alternators, throttle pedals, throttle bodies, temperature sensors, MAP sensors, EVAP solenoids, and more. Each harness extension is made from factory-style materials and specs to ensure proper connection and optimum performance.
( 2 )
$44.00
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$100.99
Trick Flow® Fuel Injector Harness Adapters
Trick Flow® fuel injector harness adapters are electrical connectors designed to allow the installation of different fuel injector styles (such as EV1 to EV6/USCAR) without cutting or splicing factory wiring. They are crucial for engine swaps or upgrades (like LS2/L92) where the stock harness plug does not match the new injector, enabling a plug-and-play installation. Additional details: * Enables seamless connection between different wiring harness styles (i.e., Bosch EV1 or EV6) * Saves time and preserves factory wiring by avoiding cutting, splicing, or soldering * Kits are available to connect various injector types, such as transitioning from Jetronic/Minitimer/EV1 harnesses to USCAR/EV6 injectors * Designed to provide a secure electrical connection to ensure accurate fuel delivery timing and duration * Note: Trick Flow® also offers fuel injector height adapters/spacers to address physical fitment differences in addition to electrical ones
Not Yet Reviewed
$5.99
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$12.99
ICT Billet MAF Harness Extensions
ICT Billet offers MAF (mass airflow) harness extensions in a variety of lengths and configurations. They're made with OEM tooling, OEM Delphi connector, lock seals, and terminals—and utilize factory harness wire colors. Don't chance a poorly running engine due to cheap wire connectors; choose the quality of ICT Billet MAF harness extensions.
( 1 )
$50.00
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$79.99
Summit Racing™ GM Throttle Body Wiring Harness Adapters
Summit Racing™ GM harness adapters allow the use of an LS2 throttle body on an LS1 vehicle. The wiring harnesses feature premium OEM connectors, terminals, locks, and seals to facilitate complete plug-and-play installation. All wiring is high-temperature automotive spec and is covered by stock-appearing split loom tubing.
Not Yet Reviewed
$47.99
ICT Billet Knock Sensor Adapter Harnesses
Upgrade your engine swap with ICT Billet knock sensor adapter harnesses—precision-built for seamless compatibility and reliable performance. These high-quality adapter harnesses allow you to easily connect knock sensors from different engine generations without cutting or splicing factory wiring for a clean, plug-and-play installation. Constructed with durable materials and OEM-style connectors, they deliver accurate signal transfer for proper engine management and knock detection. Whether you're fine-tuning a performance build or simplifying your swap wiring, ICT Billet harnesses provide a professional-grade solution that you can trust.
Not Yet Reviewed
$50.00
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$50.99
DeatschWerks USCAR to Jetronic Connector Adapters
DeatschWerks USCAR to Jetronic connector adapters are needed when modifying or retrofitting an engine or fuel system that originally had a different type of fuel injector connector to work with Jetronic injectors. These clips are available in different quantities, and will create a proper electrical connection between your vehicle's wiring and the injectors, ensuring correct fuel delivery and performance. DeatschWerks USCAR to Jetronic connector adapters provide durable construction and seamless compatibility with plug-and-play connections.
( 2 )
$6.99
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$210.00
ICT Billet MAP Sensor Harness Adapters
ICT Billet MAP sensor harness adapters make change happen—easily! They offer a selection of pre-terminated manifold absolute pressure sensor adapters to get you plugged in properly. ICT Billet wire adapter harnesses are assembled with OEM tooling, connectors, lock seals, and terminals, and utilize factory harness wire colors. They're available in WeatherPack, Bosch, Delphi/GM, and Metri-pack connector styles for use on many Chevrolet small block LS-based engine applications from 1997 and up.
( 3 )
$50.00
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$50.99
Caspers Electronics Throttle Body Wiring Harness Adapters for GM LS2
Caspers Electronics wiring harness adapters allow the use of an LS2 throttle body on an LS1 vehicle. The harnesses feature premium OEM connectors, terminals, locks, and seals to facilitate complete plug-and-play installation and optimum performance. All wiring is high-temperature automotive spec and covered by stock-appearing split loom tubing.
( 10 )
$54.99
Injector Dynamics Fuel Injector Connector Adapters
Injector Dynamics fuel injector connector adapters make converting your fuel injector harnesses a snap. These adapters are available in a variety of configurations. Choose the one needed for your application.
Not Yet Reviewed
$11.99
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$17.99
ICT Billet Starter Solenoid Wire Adapters
Sealed, crimped, and assembled, ICT Billet starter solenoid adapters are made with OEM-grade TXL wire and individually hand-tested to ensure they exceed OEM standards. They adapt LS/LT wire harnesses to ring connector-style starter solenoids.
Not Yet Reviewed
$50.00
Caspers Electronics GM Opti Spark Wiring Harness Adapters
Caspers Electronics offers wiring harnesses for a variety of muscle car applications, including many 1990s era Corvette, Camaro, and Firebird models. They're designed to adapt the long 4-cavity GM Opti-Spark plug connection to the gray 4-cavity sealed Metripack connector on 1995-97 GM LT1 applications. Replace your original harness when damaged due to corrosion and heat.
( 19 )
$22.79
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$45.79
Haltech Nexus Rebel LS Throttle Adapter Harnesses
Haltech Nexus Rebel LS throttle adapter harnesses are offered in several styles to join the throttle connector on the Nexus Rebel LS main terminated harness to a 6- or 8-pin LS DBW throttle, or to a cable-operated GM LS throttle body with a TPS and an IAC valve. Choose the proper cable for your setup.
Not Yet Reviewed
$30.00
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$30.99
