- Fuel, Carbs & Intakes
- Fuel Injection
- Holley Avenger#, HP#, Terminator and Dominator EFI Wiring Harnesses
Complete All Your Holley EFI Wiring Needs
Holley EFI wiring harnesses are compatible with Holley's Avenger#, HP#, Terminator#, and Dominator EFI Systems. EFI harnesses for various Holley systems can consist of the main harness#, transmission harness (if applicable)#, injector harness#, ignition/coil harness#, throttle body harness#, and auxiliary harnesses to access features of your Holley EFI system.
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PART TYPE
PART TYPE
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BRAND
Specials
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Part Category
Part Fitment
Vendor Part Number
Thread Adapter Fittings Included
Universal
Fuel Injection System Component Type
Wire Connector Style
Engine Management System Component Type
Type
PRICE
Auxiliary Harness
$133.95
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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$133.95
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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Bench Test Harness
$189.95
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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$189.95
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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Conductor Cable
$67.60
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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$67.60
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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$203.95
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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$203.95
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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Dominator EFI DBW Harness
Ignition Harness
Holley 558-312
Holley HP Smart Coil Ignition Harness For Use With Holley HP & Dominator ECU & Other EFI Systems
$204.95
Ships Monday
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Holley 558-321
Holley 558-3321 Factory Replacement Ignition Coil Harness for GM LS Engines w/OEM Ignition Coils
$174.95
(3)
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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$174.95
(3)
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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Injector Harness
Main Harness
$389.95
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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$389.95
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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$502.95
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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$502.95
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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$532.95
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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$532.95
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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Misc. Wiring Harnesses
$30.70
$15.04
SAVE $15.66
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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$30.70
$15.04
SAVE $15.66
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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Terminator X EFI DBW Harness
Holley 558-469
Holley 558-469 Terminator X EFI Ford Drive-By-Wire (DBW) Harness for 2018-2022 Ford Engines
$249.95
Ships Monday
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Throttle Body Harness
$368.95
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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$368.95
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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Transmission Harness
$209.95
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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$209.95
Estimated to ship direct from manufacturer on 07/02/24, pending manufacturer availability.
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Misc. Wiring Harnesses
Sub Harness
$109.95
$53.88
SAVE $56.07
Estimated to ship direct from manufacturer on 07/03/24, pending manufacturer availability.
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$109.95
$53.88
SAVE $56.07
Estimated to ship direct from manufacturer on 07/03/24, pending manufacturer availability.
Lowest Price Guarantee