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: Today

Wiring Pigtail, Camshaft Position Sensor, Chevy, Each

Part Number: NAL-12627501

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

Wiring Harness Adapter, for Camshaft Sensor, 40 in. Length, Plug-and-Play From LS2 Front Location to LS1 Intake Rear, Chevy, Pontiac, Each

Part Number: CEI-109089

3.57 out of 5 stars ( 7 )

Estimated Ship Date: Today

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

Part Number: CEI-108097

3.73 out of 5 stars ( 15 )

Estimated Ship Date: Today

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: Today

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

Part Number: ICB-WECTS30-36

Not Yet Reviewed

Estimated Ship Date: Today

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

Part Number: ICB-WEMAP30-24

Not Yet Reviewed

Estimated Ship Date: Today

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

Part Number: HTH-HT-186504

Not Yet Reviewed

Estimated Ship Date: Today

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: Today

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

Part Number: CEI-109080

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

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

Part Number: CEI-108161

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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

Part Number: CEI-108199

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Harness Adapter, MAF, 9.5 in. Wire Length, LS1 MAF To LT1 Engine, Each

Part Number: CEI-108100

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

ADAMPER EARLYGYM

Part Number: FST-308029

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Wire Connectors, MAP Sensor Pigtail, 3-pin, Female Connector, Gray, Black Wire, Cummins, Dodge, Each

Part Number: FLE-S0480

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

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IGN ADAPTER HARNESS, GM LT1 LONG CONNECT

Part Number: FST-301304

Not Yet Reviewed

Estimated Ship Date: Mar 10, 2026 if ordered today

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FAST LS2/LS7 CRANK PICKUP ADP.HARNESS

Part Number: FST-301416

Not Yet Reviewed

Estimated Ship Date: Mar 10, 2026 if ordered today

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