Wiring Harness Adapters and Extensions

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

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

Extension Harness, MAF, Ford, Mustang, Each

Part Number: JMS-J8695EXT

Not Yet Reviewed

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

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: Today

Wiring Harness Adapter, CAN Adapter Loom, Haltech, 4-pin, ECU Usage, Each

Part Number: HTH-HT-130046

Not Yet Reviewed

Estimated Ship Date: Today

Extension Harness, MAF, 6 in. Length, Buick, Cadillac, Chevrolet, GMC, Each

Part Number: AFE-F05-70047

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

• Drop Ship
• Special Order

IGNITION ADAPTER HARNESS, FAST GM HEI

Part Number: FST-301302

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

• Drop Ship
• Special Order