Collection: Engine Wiring Harnesses
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Injector Harness - Ford USCAR/EV6 Style Injector - 558-212
Vendor:Holley EFIRegular price $207.95 USDRegular priceUnit price / per$207.95 USDSale price $207.95 USD
2070
10X
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Can Adapter- New Device to 2-Pin Main Harness - 558-430
Vendor:Holley EFIRegular price $44.74 USDRegular priceUnit price / per$44.74 USDSale price $44.74 USD
440
10X
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CAN Extension Harness 9in Length - 558-428
Vendor:Holley EFIRegular price $56.25 USDRegular priceUnit price / per$56.25 USDSale price $56.25 USD
560
10X
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Dominator EFI DBW Harness - Early Truck - 558-429
Vendor:Holley EFIRegular price $285.95 USDRegular priceUnit price / per$285.95 USDSale price $285.95 USD
2850
10X
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Can Extension Harness 12ft - 558-426
Vendor:Holley EFIRegular price $84.29 USDRegular priceUnit price / per$84.29 USDSale price $84.29 USD
840
10X
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10-Pin Harness - Sniper TBI - 558-491
Vendor:Holley EFIRegular price $68.75 USDRegular priceUnit price / per$68.75 USDSale price $68.75 USD
680
10X
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Main Harness - Universal MPFI - 558-104
Vendor:Holley EFIRegular price $571.95 USDRegular priceUnit price / per$571.95 USDSale price $571.95 USD
5710
10X
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EFI Injector Harness - Universal Unterminated - 558-204
Vendor:Holley EFIRegular price $239.95 USDRegular priceUnit price / per$239.95 USDSale price $239.95 USD
2390
10X
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Main Harness - Univesal Un-Terminated - 558-105
Vendor:Holley EFIRegular price $571.95 USDRegular priceUnit price / per$571.95 USDSale price $571.95 USD
5710
10X
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Main Wiring Harness LS2 & LS3 - 558-103
Vendor:Holley EFIRegular price $675.95 USDRegular priceUnit price / per$675.95 USDSale price $675.95 USD
6750
10X
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Trans Wire Harness GM 4L60 Pre 2009 - 4L80 - 558-405
Vendor:Holley EFIRegular price $318.95 USDRegular priceUnit price / per$318.95 USDSale price $318.95 USD
3180
10X
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Drive By Wire Harness GM - 558-406
Vendor:Holley EFIRegular price $259.95 USDRegular priceUnit price / per$259.95 USDSale price $259.95 USD
2590
10X
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CAN Extension Harness 8ft Length - 558-425
Vendor:Holley EFIRegular price $70.19 USDRegular priceUnit price / per$70.19 USDSale price $70.19 USD
700
10X
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Bench-Top EFI Test Harness - 558-127
Vendor:Holley EFIRegular price $249.95 USDRegular priceUnit price / per$249.95 USDSale price $249.95 USD
2490
10X
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Main Wiring Harness LS1 & LS6 - 558-102
Vendor:Holley EFIRegular price $675.95 USDRegular priceUnit price / per$675.95 USDSale price $675.95 USD
6750
10X
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J2B Auxiliary Harness Kit - 558-402
Vendor:Holley EFIRegular price $186.95 USDRegular priceUnit price / per$186.95 USDSale price $186.95 USD
1860
10X
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Wire Harness LS to SS Map Adapter - 558-467
Vendor:Holley EFIRegular price $24.95 USDRegular priceUnit price / per$24.95 USDSale price $24.95 USD
240
10X
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J1A/B Input/Output Connector - 558-400
Vendor:Holley EFIRegular price $135.95 USDRegular priceUnit price / per$135.95 USDSale price $135.95 USD
1350
10X
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Auxiliary Harness J2A Connector - 558-401
Vendor:Holley EFIRegular price $242.95 USDRegular priceUnit price / per$242.95 USDSale price $242.95 USD
2420
10X
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Map Sensor Adapter LS1 & LS2 to LS3 - 558-416
Vendor:Holley EFIRegular price $42.87 USDRegular priceUnit price / per$42.87 USDSale price $42.87 USD
420
10X