Collection: Engine Wiring Harnesses
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Injector Harness - Ford USCAR/EV6 Style Injector - 558-212
Vendor:Holley EFIRegular price $200.12 USDRegular priceUnit price / per$200.12 USDSale price $200.12 USD
2000
10X
Sold out -
Can Adapter- New Device to 2-Pin Main Harness - 558-430
Vendor:Holley EFIRegular price $40.27 USDRegular priceUnit price / per$40.27 USDSale price $40.27 USD
400
10X
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CAN Extension Harness 9in Length - 558-428
Vendor:Holley EFIRegular price $51.51 USDRegular priceUnit price / per$51.51 USDSale price $51.51 USD
510
10X
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Dominator EFI DBW Harness - Early Truck - 558-429
Vendor:Holley EFIRegular price $256.95 USDRegular priceUnit price / per$256.95 USDSale price $256.95 USD
2560
10X
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Can Extension Harness 12ft - 558-426
Vendor:Holley EFIRegular price $77.63 USDRegular priceUnit price / per$77.63 USDSale price $77.63 USD
770
10X
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10-Pin Harness - Sniper TBI - 558-491
Vendor:Holley EFIRegular price $63.32 USDRegular priceUnit price / per$63.32 USDSale price $63.32 USD
630
10X
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Main Harness - Universal MPFI - 558-104
Vendor:Holley EFIRegular price $513.95 USDRegular priceUnit price / per$513.95 USDSale price $513.95 USD
5130
10X
Sold out -
EFI Injector Harness - Universal Unterminated - 558-204
Vendor:Holley EFIRegular price $222.11 USDRegular priceUnit price / per$222.11 USDSale price $222.11 USD
2220
10X
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Main Harness - Univesal Un-Terminated - 558-105
Vendor:Holley EFIRegular price $513.95 USDRegular priceUnit price / per$513.95 USDSale price $513.95 USD
5130
10X
Sold out -
Main Wiring Harness LS2 & LS3 - 558-103
Vendor:Holley EFIRegular price $607.95 USDRegular priceUnit price / per$607.95 USDSale price $607.95 USD
6070
10X
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Trans Wire Harness GM 4L60 Pre 2009 - 4L80 - 558-405
Vendor:Holley EFIRegular price $294.58 USDRegular priceUnit price / per$294.58 USDSale price $294.58 USD
2940
10X
Sold out -
Drive By Wire Harness GM - 558-406
Vendor:Holley EFIRegular price $232.95 USDRegular priceUnit price / per$232.95 USDSale price $232.95 USD
2320
10X
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CAN Extension Harness 8ft Length - 558-425
Vendor:Holley EFIRegular price $64.67 USDRegular priceUnit price / per$64.67 USDSale price $64.67 USD
640
10X
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Bench-Top EFI Test Harness - 558-127
Vendor:Holley EFIRegular price $233.56 USDRegular priceUnit price / per$233.56 USDSale price $233.56 USD
2330
10X
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Main Wiring Harness LS1 & LS6 - 558-102
Vendor:Holley EFIRegular price $607.95 USDRegular priceUnit price / per$607.95 USDSale price $607.95 USD
6070
10X
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J2B Auxiliary Harness Kit - 558-402
Vendor:Holley EFIRegular price $168.25 USDRegular priceUnit price / per$168.25 USDSale price $168.25 USD
1680
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 $125.66 USDRegular priceUnit price / per$125.66 USDSale price $125.66 USD
1250
10X
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Auxiliary Harness J2A Connector - 558-401
Vendor:Holley EFIRegular price $217.95 USDRegular priceUnit price / per$217.95 USDSale price $217.95 USD
2170
10X
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Map Sensor Adapter LS1 & LS2 to LS3 - 558-416
Vendor:Holley EFIRegular price $39.31 USDRegular priceUnit price / per$39.31 USDSale price $39.31 USD
390
10X