Wiring Harnesses
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Original price $206.95 - Original price $206.95Original price $206.95$238.95$238.95 - $238.95Current price $238.95Holley HLY558-404 J4 Connector & Harness
HolleyDescription: The Holley HLY558-404 J4 Connector & Harness is an EFI wiring harness designed specifically for the Holley Dominator EFI system. T...
View full detailsOriginal price $206.95 - Original price $206.95Original price $206.95$238.95$238.95 - $238.95Current price $238.95 -
Original price $161.95 - Original price $161.95Original price $161.95$186.95$186.95 - $186.95Current price $186.95Holley HLY558-402 J2B Auxiliary Harness Kit
HolleyDescription: The Holley HLY558-402 J2B Auxiliary Harness Kit is designed for use with Holley Dominator EFI systems. This universal kit provides the...
View full detailsOriginal price $161.95 - Original price $161.95Original price $161.95$186.95$186.95 - $186.95Current price $186.95 -
Original price $210.55 - Original price $210.55Original price $210.55$242.95$242.95 - $242.95Current price $242.95Holley HLY558-401 Auxiliary Harness J2A Connector
HolleyDescription: The Holley HLY558-401 Auxiliary Harness J2A Connector is designed for use with Holley Dominator EFI systems. This universal kit provid...
View full detailsOriginal price $210.55 - Original price $210.55Original price $210.55$242.95$242.95 - $242.95Current price $242.95 -
Original price $264.55 - Original price $264.55Original price $264.55$304.95$304.95 - $304.95Current price $304.95Holley HLY558-318 Coil-Near-Plug Sub Harness - Big Wire
HolleyDescription: The Holley HLY558-318 Coil-Near-Plug Sub Harness is designed specifically for V8 engines. This ignition wiring harness features a bi...
View full detailsOriginal price $264.55 - Original price $264.55Original price $264.55$304.95$304.95 - $304.95Current price $304.95 -
Original price $258.25 - Original price $258.25Original price $258.25$299.95$299.95 - $299.95Current price $299.95Holley HLY558-312 HP EFI Sub-Harnesses - Smart Coil
HolleyDescription: The Holley HLY558-312 HP EFI Sub-Harnesses - Smart Coil is designed for use with Holley HP and Dominator EFI systems. The harness is c...
View full detailsOriginal price $258.25 - Original price $258.25Original price $258.25$299.95$299.95 - $299.95Current price $299.95 -
Original price $116.05 - Original price $116.05Original price $116.05$133.95$133.95 - $133.95Current price $133.95Holley HLY558-305 Ford TFI Ignition Harness
HolleyDescription: The Holley HLY558-305 Ford TFI Ignition Harness is designed specifically for connecting Ford TFI distributors to Holley Avenger, HP, a...
View full detailsOriginal price $116.05 - Original price $116.05Original price $116.05$133.95$133.95 - $133.95Current price $133.95 -
Original price $179.95 - Original price $179.95Original price $179.95$207.95$207.95 - $207.95Current price $207.95Holley HLY558-212 Injector Harness - Ford USCAR/EV6 Style Injector
HolleyDescription: With a focus on quality and compatibility, this harness is crafted to meet the demands of performance enthusiasts and professionals al...
View full detailsOriginal price $179.95 - Original price $179.95Original price $179.95$207.95$207.95 - $207.95Current price $207.95 -
Original price $179.95 - Original price $179.95Original price $179.95$207.95$207.95 - $207.95Current price $207.95Holley HLY558-210 Injector Harness V8 Evenly Spaced USCAR
HolleyDescription: The Holley HLY558-210 Injector Harness is designed for use with V8 engines, featuring an adapter that connects USCAR EV6 connectors to...
View full detailsOriginal price $179.95 - Original price $179.95Original price $179.95$207.95$207.95 - $207.95Current price $207.95 -
Original price $184.45 - Original price $184.45Original price $184.45$212.95$212.95 - $212.95Current price $212.95Holley HLY558-200 Injector Wiring Harness V8 Bosch Style Injectors
HolleyDescription: The Holley HLY558-200 Injector Wiring Harness is designed for use with Bosch style injectors in V8 applications. Key Features: D...
View full detailsOriginal price $184.45 - Original price $184.45Original price $184.45$212.95$212.95 - $212.95Current price $212.95 -
Original price $196.15 - Original price $196.15Original price $196.15$225.95$225.95 - $225.95Current price $225.95Holley HLY558-191 Sniper 2 Main Harness w/Fuel Pump Relay
HolleyDescription: The Holley HLY558-191 Sniper 2 Main Harness with Fuel Pump Relay is designed for use with the Sniper 2 EFI system. This wiring harness...
View full detailsOriginal price $196.15 - Original price $196.15Original price $196.15$225.95$225.95 - $225.95Current price $225.95 -
Original price $134.95 - Original price $134.95Original price $134.95$155.95$155.95 - $155.95Current price $155.95Holley HLY558-190 Sniper 2 Main Harness For PDM
HolleyDescription: The Holley HLY558-190 Sniper 2 Main Harness is designed for use with the Sniper 2 EFI system and the Power Distribution Module (PDM). ...
View full detailsOriginal price $134.95 - Original price $134.95Original price $134.95$155.95$155.95 - $155.95Current price $155.95 -
Original price $505.95 - Original price $505.95Original price $505.95$584.95$584.95 - $584.95Current price $584.95Holley HLY558-128 Engine Main Harness Ford 5.0L/5.8L
HolleyDescription: The Holley HLY558-128 Engine Main Harness is designed specifically for Small Block Ford engines, including the 5.0L and 5.8L variants....
View full detailsOriginal price $505.95 - Original price $505.95Original price $505.95$584.95$584.95 - $584.95Current price $584.95
