Wiring Harnesses
- Air Conditioning WIring Harness
- Blower Motor Harness
- Brake
- Dash Wiring Harnesses
- Engine Wiring Harnesses
- Fuel Injector Harnesses
- Fuel Pump Harness
- Full Wiring Harness
- Full Wiring Harness - Application Specific
- Full Wiring Harness - Universal
- Gauge Wiring Harnesses
- Headlight
- Ignition Wiring Harnesses
- Power Top Harness
- Steering Column Wiring Harnesses
- Transmission Wiring Harnesses
- Winch Wiring Harness
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Ford 4R70W/4R75W Trans Control Harness 98-03 (HLY558-470)
HOLLEY
$209.95Transmission Wiring Harness - Plug-N-Play - j4 Connector - 4R70W / 4R75W - Ford - Each$209.95 -
Wire Harness LS to SS Map Adapter (HLY558-467)
HOLLEY
$34.99Wiring Harness Adapter - Delphi M/P 3 Pin to Delphi GT 3 Pin - GM LS-Series - Each$34.99 -
Wire Harness MPFI to SS MAP Adapter (HLY558-466)
HOLLEY
$35.82Wiring Harness Adapter - MPDI Map Sensor to Delphi GT Sensor - Each$35.82 -
Adapter Harness Wideband Terminator-X (HLY558-463)
HOLLEY
$51.11Wiring Harness Adapter - Terminator X - Wideband - Each$51.11 -
Pro-Dash Harness Un-terminated IO (HLY558-456)
HOLLEY
$215.95Dash Wiring Harness - Pins / Plugs / Wires Included - Kit$215.95 -
Holley EFI to RacePak Can Cables Adapter Kit (HLY558-447)
HOLLEY
$88.10Gauge Wiring Harness - Holley EFI to RacePak Adapter - Kit$88.10 -
Wiring Harness - EFI Digital Dash I/O Adapter (HLY558-433)
HOLLEY
$266.95Gauge Wiring Harness - EFI Digital Dash - Kit$266.95 -
I/O Adapter for Digital Dash (HLY558-432)
HOLLEY
$122.95Digital Dash Wiring Harness - Input/Output Extender - Holley Digital Dash - Kit$122.95 -
Crank/Cam Ignition Harness (HLY558-431)
HOLLEY
$81.95EFI Wiring Harness - Camshaft Ignition Harness - Holley HP / Dominator EFI - Universal - Kit$81.95 -
Can Adapter- New Device to 2-Pin Main Harness (HLY558-430)
HOLLEY
$32.63Data Transfer Cable Adapter - 2 Pin Harness to CAN - Each$32.63 -
Dominator EFI DBW Harness - Early Truck (HLY558-429)
HOLLEY
$220.95EFI Wiring Harness - Drive by Wire - Holley Dominator EFI - GM - Each$220.95 -
CAN Extension Harness 9in Length (HLY558-428)
HOLLEY
$40.95CAN Wiring Harness - Extension Harness - 9 in Long - Black Rubber Coated - Each$40.95 -
Can Extension Harness 12ft (HLY558-426)
HOLLEY
$61.45CAN Wiring Harness - Extension Harness - 12 ft Long - Black Rubber Coated - Each$61.45 -
CAN Extension Harness 8ft Length (HLY558-425)
HOLLEY
$51.20CAN Wiring Harness - Extension Harness - 8 ft Long - Black Rubber Coated - Each$51.20 -
DBW Throttle Harness Ford 5.0L Coyote 11-17 (HLY558-422)
HOLLEY
$225.95EFI Wiring Harness - Drive by Wire - Holley EFI - Ford Coyote - Each$225.95 -
Wire Harness Kit - EFI Terminator I/O (HLY558-420)
HOLLEY
$40.95EFI Wiring Harness - Input / Output - Holley Terminator EFI - Each$40.95 -
Map Sensor Adapter LS1 & LS2 to LS3 (HLY558-416)
HOLLEY
$35.82Wiring Harness Adapter - LS Main Harness to LS3 Map Sensor - Each$35.82 -
Drive By Wire Harness GM (HLY558-406)
HOLLEY
$220.95EFI Wiring Harness - Drive by Wire - Holley Dominator EFI - GM - Each$220.95 -
Trans Wiring Harness GM 4L60/80E (HLY558-405)
HOLLEY
$270.95EFI Wiring Harness - Transmission - Holley Dominator EFI - GM 4L60E / 4L80E - Each$270.95 -
J4 Connector & Harness (HLY558-404)
HOLLEY
$174.95EFI Wiring Harness - J4 Auxiliary Harness - Holley Dominator EFI - Each$174.95 -
J3 Connector & Harness (HLY558-403)
HOLLEY
$143.95Wiring Harness - J3 Auxiliary Input / Output Connector - Dominator EFI - Each$143.95 -
J2B Auxiliary Harness Kit (HLY558-402)
HOLLEY
$143.95EFI Wiring Harness - J2B Auxiliary Connector Harness - Holley Dominator EFI - Universal - Kit$143.95 -
Auxiliary Harness J2A Connector (HLY558-401)
HOLLEY
$204.95EFI Wiring Harness - J2A Auxiliary Connector Harness - Holley Dominator EFI - Universal - Kit$204.95 -
J1A/B Input/Output Connector (HLY558-400)
HOLLEY
$98.35EFI Wiring Harness - J1A/B - Holley Dominator EFI - Each$98.35 -
Wiring Harness Adapter Hyperspark Ignition (HLY558-323)
HOLLEY
$35.82EFI Wiring Harness - Ignition Adapter Harness - HyperSpark Distributors to Holley EFI - Each$35.82 -
GM LS Coil Sub Harnesses (HLY558-321)
HOLLEY
$174.95Ignition Wiring Harness - Factory Replacement - Injector Sub Harness - GM LS-Series - Kit$174.95 -
Coil-Near-Plug Sub Harness - Big Wire (HLY558-318)
HOLLEY
$220.95Ignition Wiring Harness - Big Wire C-N-P Sub Harness - V8 - Each$220.95 -
Coil Harness - Ford 4V Modular Engines (HLY558-315)
HOLLEY
$189.95Ignition Wiring Harness - Coil-On-Plug Main Harness - Ford Modular - Each$189.95 -
HP EFI Sub-Harnesses - Smart Coil (HLY558-312)
HOLLEY
$204.95EFI Wiring Harness - Smart Coil - Ignition Coil Wiring - Holley HP / Dominator EFI - Universal - Each$204.95 -
EFI Main Power Harness (HLY558-308)
HOLLEY
$88.10EFI Wiring Harness - Main Power - Holley Dominator EFI - Each$88.10 -
LS Coil On Plug Harness Universal (HLY558-307)
HOLLEY
$153.95Ignition Wiring Harness - Coil-On-Plug to Sub Harness - Holley HP / Dominator EFI - Each$153.95 -
Ford TFI Ignition Harness (HLY558-305)
HOLLEY
$102.95EFI Wiring Harness - Ignition Adapter Harness - Ford TFI Distributor to Holley Avenger / HP / Dominator EFI - Each$102.95 -
HEI Ignition Harness (HLY558-304)
HOLLEY
$46.07EFI Wiring Harness - Ignition Adapter Harness - GM Small Cap HEI Distributor to Holley Avenger / HP / Dominator EFI - Each$46.07 -
Ignition Harness w/Magnetic Pickup (HLY558-303)
HOLLEY
$81.95EFI Wiring Harness - Magnetic Pickup - Holley Dominator EFI - GM LS-Series - Each$81.95 -
Injector Harness Ford w/ Jetronic Injectors (HLY558-213)
HOLLEY
$153.95EFI Wiring Harness - EV1 Style Injectors - Ford V8 - Each$153.95 -
Injector Harness - Ford USCAR/EV6 Style Injector (HLY558-212)
HOLLEY
$153.95EFI Wiring Harness - EV6 / USCAR Style Injectors - Holley EFI - Small Block Ford - Each$153.95 -
Injector Harness - 16 Injectors - Unterminated (HLY558-207)
HOLLEY
$249.95EFI Wiring Harness - EV6 Style Injectors - Holley HP / Dominator EFI - Each$249.95 -
EFI Injector Harness - Universal Unterminated (HLY558-204)
HOLLEY
$184.95Fuel Injector Harness - Unterminated - Bosch Terminal Ends Included - Holley HP / Dominator EFI - Kit$184.95 -
Injector Wiring Harness V8 EV6 Style Injectors (HLY558-201)
HOLLEY
$153.95EFI Wiring Harness - EV6 Style Injectors - Holley Dominator EFI - Each$153.95 -
Injector Wiring Harness V8 Bosch Style Injectors (HLY558-200)
HOLLEY
$174.95EFI Wiring Harness - Bosch Style Injectors - Holley Dominator EFI - Each$174.95