Wiring Harnesses
-
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 -
Original price $213.25 - Original price $213.25Original price $213.25$249.95$249.95 - $249.95Current price $249.95
Holley HLY558-127 Bench-Top EFI Test Harness
HolleyDescription: The Holley HLY558-127 Bench-Top EFI Test Harness is designed for testing EFI systems in a controlled environment. This wiring harness ...
View full detailsOriginal price $213.25 - Original price $213.25Original price $213.25$249.95$249.95 - $249.95Current price $249.95Sold out -
Original price $391.95 - Original price $391.95Original price $391.95$449.95$449.95 - $449.95Current price $449.95Holley HLY558-126 Flying Lead Main Harness
HolleyDescription: The Holley HLY558-126 Flying Lead Main Harness is a versatile engine wiring harness designed for various applications. This harness me...
View full detailsOriginal price $391.95 - Original price $391.95Original price $391.95$449.95$449.95 - $449.95Current price $449.95 -
Original price $583.95 - Original price $583.95Original price $583.95$675.95$675.95 - $675.95Current price $675.95
Holley HLY558-118 Ford MPFI Coil On Plug Main Harness
HolleyDescription: This coil-on-plug main harness facilitates the connection of ignition coils to the engine's electronic control unit, ensuring proper...
View full detailsOriginal price $583.95 - Original price $583.95Original price $583.95$675.95$675.95 - $675.95Current price $675.95Sold out -
Original price $538.95 - Original price $538.95Original price $538.95$623.95$623.95 - $623.95Current price $623.95Holley HLY558-117 Universal MPFI Coil On Plug Main Harness
HolleyDescription: The Holley HLY558-117 Universal MPFI Coil On Plug Main Harness is designed for those looking to streamline their ignition wiring setup...
View full detailsOriginal price $538.95 - Original price $538.95Original price $538.95$623.95$623.95 - $623.95Current price $623.95 -
Original price $736.95 - Original price $736.95Original price $736.95$849.95$849.95 - $849.95Current price $849.95Holley HLY558-116 Main Wire Harness Hemi Late W/ TPS & IAC
HolleyDescription: The Holley HLY558-116 Main Wire Harness is designed for use with Mopar Gen III Hemi engines. This wiring harness is specifically confi...
View full detailsOriginal price $736.95 - Original price $736.95Original price $736.95$849.95$849.95 - $849.95Current price $849.95 -
Original price $718.95 - Original price $718.95Original price $718.95$849.95$849.95 - $849.95Current price $849.95
Holley HLY558-108 Main Harness 99-04 Ford Modular Engine
HolleyDescription: With a focus on quality and precision, this harness is built to meet the demands of modern automotive applications. Key Features: ...
View full detailsOriginal price $718.95 - Original price $718.95Original price $718.95$849.95$849.95 - $849.95Current price $849.95Sold out -
Original price $493.95 - Original price $493.95Original price $493.95$571.95$571.95 - $571.95Current price $571.95Holley HLY558-105 Main Harness - Univesal Un-Terminated
HolleyDescription: The Holley HLY558-105 Main Harness is a universal unterminated wiring harness designed for use with Holley HP and Dominator EFI system...
View full detailsOriginal price $493.95 - Original price $493.95Original price $493.95$571.95$571.95 - $571.95Current price $571.95 -
Original price $493.95 - Original price $493.95Original price $493.95$571.95$571.95 - $571.95Current price $571.95Holley HLY558-104 Main Harness - Universal MPFI
HolleyDescription: The Holley HLY558-104 Main Harness is designed for use with multi-port fuel injection (MPFI) systems. Key Features: Universal MP...
View full detailsOriginal price $493.95 - Original price $493.95Original price $493.95$571.95$571.95 - $571.95Current price $571.95 -
Original price $583.95 - Original price $583.95Original price $583.95$675.95$675.95 - $675.95Current price $675.95Holley HLY558-103 Main Wiring Harness LS2 & LS3
HolleyDescription: The Holley HLY558-103 Main Wiring Harness is designed for use with LS2, LS3, and LS7 engines. This EFI wiring harness is compatible wi...
View full detailsOriginal price $583.95 - Original price $583.95Original price $583.95$675.95$675.95 - $675.95Current price $675.95 -
Original price $583.95 - Original price $583.95Original price $583.95$675.95$675.95 - $675.95Current price $675.95Holley HLY558-102 Main Wiring Harness LS1 & LS6
HolleyDescription: The Holley HLY558-102 Main Wiring Harness is designed for use with LS1 and LS6 engines, specifically tailored for Holley HP and Domina...
View full detailsOriginal price $583.95 - Original price $583.95Original price $583.95$675.95$675.95 - $675.95Current price $675.95 -
Original price $583.95 - Original price $583.95Original price $583.95$675.95$675.95 - $675.95Current price $675.95
Holley HLY558-101 TPI Stealth RAM Main Harness
HolleyDescription: The Holley HLY558-101 TPI Stealth Ram Main Harness is designed for use with various GM applications. This EFI wiring harness is compat...
View full detailsOriginal price $583.95 - Original price $583.95Original price $583.95$675.95$675.95 - $675.95Current price $675.95Sold out
