Wiring Harness Adapters and Extensions - Adapter Wiring Harness Style - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Caspers Electronics MAF/IAT Breakout Harnesses for 2005-2006 GTO - 108136

Caspers Electronics MAF/IAT Breakout Harnesses for 2005-2006 GTO - 108136

Wiring Harness, MAF/IAT Breakout-GT Series Dense, Each

Part Number: CEI-108136

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Monday 10/6/2025

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Estimated Ship Date: Monday 10/6/2025

FAST TPS Adapter Harnesses 308022

Harness Adapter, Early to Late GM TPS, Each

Part Number: FST-308022

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 10/6/2025

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Estimated Ship Date: Monday 10/6/2025

DeatschWerks USCAR to Jetronic Connector Adapters CONN-US-JT

Wiring Pigtail, Top Feed Injector, Male and Female, 2-pin, Each

Part Number: DWK-CONN-US-JT

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/6/2025

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Estimated Ship Date: Monday 10/6/2025

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

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Estimated Ship Date: Monday 10/6/2025

Caspers Electronics Fuel Injector Adapters 109077

Fuel Injector Connector Adapter, USCAR/EV6 Injector, Jetronic/Minitimer/EV1 Harness, Each

Part Number: CEI-109077

4.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 10/6/2025

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Estimated Ship Date: Monday 10/6/2025

FAST TPS Adapter Harnesses 308030

Wiring Pigtail, Fuel Injector, Early to Late GM TPS, Each

Part Number: FST-308030

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/6/2025

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Estimated Ship Date: Monday 10/6/2025

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

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Estimated Ship Date: Monday 10/6/2025

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

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Estimated Ship Date: Monday 10/6/2025

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

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Estimated Ship Date: Monday 10/6/2025

ICT Billet Fuel Injector Plug Adapters WAINJ34

Wiring Harness, Fuel Injector Adapter, Jetronic/EV1 Harness, Denso/Bosch Fuel Injector, Set of 8

Part Number: ICB-WAINJ34

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/6/2025

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Estimated Ship Date: Monday 10/6/2025

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

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Estimated Ship Date: Monday 10/6/2025

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

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Estimated Ship Date: Monday 10/6/2025

ICT Billet Crankshaft Position Sensor Harness Adapters WACKP41-6

Adapter, Gen 5 Crankshaft Position Sensor to LS Gen IV Harness, Each

Part Number: ICB-WACKP41-6

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

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Estimated Ship Date: Monday 10/6/2025

FAST Fuel Injector Adapter Harnesses 170604-8

Fuel Injector Connector Adapter, USCAR/EV6 Injector, Jetronic/Minitimer/EV1 Harness, Set of 8

Part Number: FST-170604-8

Not Yet Reviewed

Estimated Ship Date: Dec 12, 2025 if ordered today

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Estimated Ship Date: Dec 12, 2025 if ordered today

Need It Sooner? We recommend these similar substitute parts:

BTR Fuel Injector Plug Adapters EV1/EV6-8

5 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/6/2025

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SCT Big Air MAF Cable Harness Adapters for 1988-1995 MUSTANG - 2901

MAF Adapter Cables, Harness Adapter, Black, Plastic, Each

Part Number: SCL-2901

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Monday 10/6/2025

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Estimated Ship Date: Monday 10/6/2025

ICT Billet Crankshaft Position Sensor Harness Adapters WACKP30-6

Adapter LS Gen IV Crankshaft Position Sensor to Gen III Harness - 6

Part Number: ICB-WACKP30-6

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

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Estimated Ship Date: Monday 10/6/2025

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

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Estimated Ship Date: Monday 10/6/2025

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

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Estimated Ship Date: Monday 10/6/2025

BTR Fuel Injector Plug Adapters EV1/EV6-1

Wiring Harness Adapter, Fuel Injector Plug Adapter, Bosch EV6/USCAR 2-pin, Bosch EV1 2-pin, Each

Part Number: BTC-EV1EV61

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

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Estimated Ship Date: Monday 10/6/2025

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

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Estimated Ship Date: Monday 10/6/2025

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

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Estimated Ship Date: Oct 14, 2025 if ordered today

Injector Dynamics Fuel Injector Connector Adapters 90.1

Wiring Harness Adapter, Fuel Injector Connector, Bosch Style, USCAR/EV6 to EV1, 2-Pin, P-N-P, Each

Part Number: IJD-90-1

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

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Estimated Ship Date: Monday 10/6/2025

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

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Estimated Ship Date: Monday 10/6/2025

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

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Estimated Ship Date: Monday 10/6/2025

ICT Billet Starter Solenoid Wire Adapters WASTR40

LS LT Starter Solenoid Wire Adapter

Part Number: ICB-WASTR40

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

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Estimated Ship Date: Monday 10/6/2025