$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

Fall Clearance Sale - Save Today on The Parts You Need!

Filters

Selected Filters

Filter Results by Vehicle

Loading...

Availability

Wiring Harness Adapters and Extensions

Individual Parts
Part Groups

Results 26 - 50 of 61

Top Street Performance Throttle Body Harness Adapter for GM LS1 to LS2 81032

Top Street Performance Throttle Body Harness Adapter for GM LS1 to LS2 81032

Top Street Performance Throttle Body Harness Adapter for GM LS1 to LS2 81032

Throttle Body Adapter Harness, 8-Pin LS1 Harness to 6-Pin LS2 Throttle Body Plug, Each

Part Number: TSN-81032

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

ICT Billet Wiring Harness Extensions WECTS30-36

ICT Billet Wiring Harness Extensions WECTS30-36

ICT Billet Wiring Harness Extensions WECTS30-36

Wiring Connectors, Coolant Temperature Sensor Extension, 36 in., 2 Pin, Each

Part Number: ICB-WECTS30-36

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

ICT Billet Wiring Harness Extensions WEMAP30-24

ICT Billet Wiring Harness Extensions WEMAP30-24

ICT Billet Wiring Harness Extensions WEMAP30-24

Wire Extension 24" LS Gen 3 MAP Manifold Absolute Pressure Sensor Connector

Part Number: ICB-WEMAP30-24

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

Haltech Nexus Rebel LS Throttle Adapter Harnesses HT-186504

Haltech Nexus Rebel LS Throttle Adapter Harnesses HT-186504

Haltech Nexus Rebel LS Throttle Adapter Harnesses HT-186504

Harness Adapter, Nexus Rebel LS, Cable Operated, TPS, IAC, Chevrolet, LS, Each

Part Number: HTH-HT-186504

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

Top Street Performance MAP Sensor Extension Harnesses 81034

Top Street Performance MAP Sensor Extension Harnesses 81034

Top Street Performance MAP Sensor Extension Harnesses 81034

Map Sensor Extension Harness, 24 in. Length, Each

Part Number: TSN-81034

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

ICT Billet MAF/IAT Breakout Harnesses WAMAF30-60

ICT Billet MAF/IAT Breakout Harnesses WAMAF30-60

ICT Billet MAF/IAT Breakout Harnesses WAMAF30-60

Harness Extension, 60 in. MAF Sensor Harness, 40 in. IAT Sensor Harness, Chevrolet, LS3, Each

Part Number: ICB-WAMAF30-60

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

Haltech Nexus Rebel LS MAP Sensor Adapter Harnesses HT-186511

Haltech Nexus Rebel LS MAP Sensor Adapter Harnesses HT-186511

Haltech Nexus Rebel LS MAP Sensor Adapter Harnesses HT-186511

Map Sensor Adapter, Convert LS Gen III Map Sensor Harness to Gen IV LS Bosch Style Sensor, Nexus Rebel, Chevrolet, Each

Part Number: HTH-HT-186511

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

ICT Billet Wiring Harness Extensions WECKP30-36

ICT Billet Wiring Harness Extensions WECKP30-36

ICT Billet Wiring Harness Extensions WECKP30-36

Wire Extension LS Gen 3 White 3-Wire CKP Crankshaft Position Sensor Connector

Part Number: ICB-WECKP30-36

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

ICT Billet MAP Sensor Harness Adapters WAMAP40-6

ICT Billet MAP Sensor Harness Adapters WAMAP40-6

ICT Billet MAP Sensor Harness Adapters WAMAP40-6

Wire Harness Adapter 6 in. LS Gen 4 (IV) Vehicle to Gen 3 MAP Sensor LS1 LS3 LSA

Part Number: ICB-WAMAP40-6

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

Caspers Electronics GM Opti Spark Wiring Harness Adapters for 1993 CAMARO, FIREBIRD, 1992-1993 CORVETTE - 108161

Made in the USA Caspers Electronics GM Opti Spark Wiring Harness Adapters for 1993 CAMARO, FIREBIRD, 1992-1993 CORVETTE - 108161

Caspers Electronics GM Opti Spark Wiring Harness Adapters for 1993 CAMARO, FIREBIRD, 1992-1993 CORVETTE - 108161

Opti Spark Adapter Harness, Chevy, Pontiac, 5.7L LT, Each

Part Number: CEI-108161

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

Caspers Electronics MAP Harness Extensions 109080

Made in the USA Caspers Electronics MAP Harness Extensions 109080

Caspers Electronics MAP Harness Extensions 109080

Harness Extension, MAP Sensor, 26 in. Length, Chevy, Each

Part Number: CEI-109080

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

Haltech Nexus Rebel LS Throttle Adapter Harnesses HT-186505

Haltech Nexus Rebel LS Throttle Adapter Harnesses HT-186505

Haltech Nexus Rebel LS Throttle Adapter Harnesses HT-186505

Harness Adapter, Nexus Rebel LS, DBW, 6-Pin, Chevrolet, LS, Each

Part Number: HTH-HT-186505

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

ICT Billet MAP Sensor Harness Adapters WAMAP30-6

ICT Billet MAP Sensor Harness Adapters WAMAP30-6

ICT Billet MAP Sensor Harness Adapters WAMAP30-6

Map Sensor Adapter, Convert LS Gen III Map Sensor Harness to 3-Bar Brick Style Sensor, Chevrolet, Each

Part Number: ICB-WAMAP30-6

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

Caspers Electronics TPS Breakout Adapters 108103FIT

Made in the USA Caspers Electronics TPS Breakout Adapters 108103FIT

Caspers Electronics TPS Breakout Adapters 108103FIT

Breakout Adapter, FiTech to Late GM Adapter, Each

Part Number: CEI-108103FIT

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

Top Street Performance MAP Sensor Harness Adapters 81033

Top Street Performance MAP Sensor Harness Adapters 81033

Top Street Performance MAP Sensor Harness Adapters 81033

Map Sensor Adapter, Convert LS1/LS2 Map Sensor to LS3 Sensor, Harness Adapter, Chevy, LS, Each

Part Number: TSN-81033

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

JMS Chip MAF Harnesses JLS1LS3AD

Made in the USA JMS Chip MAF Harnesses JLS1LS3AD

JMS Chip MAF Harnesses JLS1LS3AD

Mass Air Meter Wiring Extension/Adapter -- GM LS1 conversion to LS3/LS7 MAF Sensor with IAT

Part Number: JMS-JLS1LS3AD

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 14, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 14, 2025 if ordered today

Caspers Electronics GM Opti Spark Wiring Harness Adapters for 1992 CORVETTE - 108199

Made in the USA Caspers Electronics GM Opti Spark Wiring Harness Adapters for 1992 CORVETTE - 108199

Caspers Electronics GM Opti Spark Wiring Harness Adapters for 1992 CORVETTE - 108199

Opti Spark Adapter Harness, Chevy, 5.7L LT, Each

Part Number: CEI-108199

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

ICT Billet Wiring Harness Extensions WEALT30-36

ICT Billet Wiring Harness Extensions WEALT30-36

ICT Billet Wiring Harness Extensions WEALT30-36

Wiring Pigtail, Alternator, Male and Female, 4-pin, 36 in. Long, Chevy, Each

Part Number: ICB-WEALT30-36

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

ICT Billet Wiring Harness Extensions WEAPP30-72

ICT Billet Wiring Harness Extensions WEAPP30-72

ICT Billet Wiring Harness Extensions WEAPP30-72

LS Gen 3 Truck TAC Module Pedal Position 72" Wire Extension

Part Number: ICB-WEAPP30-72

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

Haltech Nexus Rebel LS Throttle Adapter Harnesses HT-186506

Haltech Nexus Rebel LS Throttle Adapter Harnesses HT-186506

Haltech Nexus Rebel LS Throttle Adapter Harnesses HT-186506

Harness Adapter, Nexus Rebel LS, DBW, 8-Pin, Chevrolet, LS, Each

Part Number: HTH-HT-186506

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

ICT Billet Wiring Harness Extensions WEPUR30-12

ICT Billet Wiring Harness Extensions WEPUR30-12

ICT Billet Wiring Harness Extensions WEPUR30-12

Wire Extension 12" LS Purge Valve EVAP Solenoid

Part Number: ICB-WEPUR30-12

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

JMS Chip MAF Harnesses JLS3EXT

Made in the USA JMS Chip MAF Harnesses JLS3EXT

JMS Chip MAF Harnesses JLS3EXT

Mass Air Meter Wiring Extension -- LS3 and LS7 MAF

Part Number: JMS-JLS3EXT

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

FAST MAP Sensor Adapter Harnesses 308029

FAST MAP Sensor Adapter Harnesses 308029

FAST MAP Sensor Adapter Harnesses 308029

ADAMPER EARLYGYM

Part Number: FST-308029

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

Caspers Electronics Fuel Injector Adapters 109277

Made in the USA Caspers Electronics Fuel Injector Adapters 109277

Caspers Electronics Fuel Injector Adapters 109277

Injector Adapter, Multec 2 to EV1, Each

Part Number: CEI-109277

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

...Loading

Estimated Ship Date: Monday 10/6/2025

JMS Chip MAF Harnesses JLS2LS3ADX

Made in the USA JMS Chip MAF Harnesses JLS2LS3ADX

JMS Chip MAF Harnesses JLS2LS3ADX

Mass Air Meter Wiring Extension/Adapter, LS2 conversion to LS3/LS7 MAF Sensor, Each

Part Number: JMS-JLS2LS3ADX

Not Yet Reviewed

Estimated Ship Date: Oct 13, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 13, 2025 if ordered today

Modal Header

Call To Order

This is a custom order part. You can order this part by Contacting Us.

Summit Racing Speedcard. Synchrony Car Care.

Summit Racing Equipment SpeedCard

Jumpstart Your Next Project!

View Details|See if you Prequalify