Wiring Harness Adapters and Extensions

Harness Adaptors, Holley EFI, LS3 MAP Sensor Adapter, Plug-and-Play, Pre-Terminated, Adapts to LS1/LS2 Engine, Chevy, 5.7L, 6.0L, Each

Part Number: HLY-558-416

4.88 out of 5 stars ( 17 )

Estimated Ship Date: Monday 10/6/2025

Adapter Harness, Camshaft Sensor, VVT to NON-VVT, 10 in. Length, GM, LS, Each

Part Number: ICB-WAVVT40-10

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 10/6/2025

Wiring Harness, Adapter, Fuel Injector, Jetronic EV1 to Mini Delphi Multec 2 Fuel, Set of 8

Part Number: ICB-WAINJ30

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

Adapter Harnesses, Holley EFI, MAP Sensor Adapter, 3-pin Delphi GT to 3-pin Delphi M/P 150 Connector, Plug-and-Play, LS Engine Harness, Each

Part Number: HLY-558-467

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/6/2025

Throttle Body Adapter Harness, LS2 Throttle Body to LS1 Vehicle, Each

Part Number: CEI-108115

4.0 out of 5 stars ( 9 )

Estimated Ship Date: Monday 10/6/2025

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

Part Number: ICB-WAMAP31-6

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/6/2025

Optispark to Metripack Adapter, Replaces Original Harness, Chevy, Pontiac, Each

Part Number: CEI-108097

3.73 out of 5 stars ( 15 )

Estimated Ship Date: Monday 10/6/2025

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

Part Number: CEI-109103

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 10/6/2025

Throttle Body Adapter Harness, LS2 Throttle Body to LS1 Vehicle, Each

Part Number: SUM-890106

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

Wiring Harness, Adapter, Fuel Injector, USACAR EV6 Harness to Mini Delphi Multec 2 Fuel Injectors, Set of 8

Part Number: ICB-WAINJ40

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

Wiring Harness Adapters and Extensions, MAF Harness Extensions, Delphi/GM, Metri-pack GT Series, 5-pin, 6.00 in. Length, Chevy, Small Block LS, Each

Part Number: ICB-WAMAF33-6

Not Yet Reviewed

Estimated Ship Date: Monday 10/6/2025

Extension Harness, MAF/IAT Breakout, Chevy, Pontiac, Each

Part Number: CEI-108165

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 10/6/2025

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

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

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

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

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

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

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

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

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

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

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

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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