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Harnesses

Engine specific harnesses for many applications including LS and Gen III HEMI engines

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Harness Application

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LSX
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TPI/ Stealthram
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Auxiliary
Drive-By-Wire
Ignition
Injector
Main
Main Battery Power
Transmission

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2x4 BBL Holley TBI Injector Harness

2x4 BBL Holley TBI Injector Harness for HP EFI & Dominator EFI

$140.95

4bbl Holley TBI Injector Harness

4bbl Holley TBI injector harness for HP EFI & Dominator EFI

$64.27

CAN ADAPTER/POWER HARNESS

NEW DEVICE TO TWO PIN MAIN HARNESS

$20.44

CAN EXTENSION HARNESS, 12FT

12FT Extension Harness

$40.95

CAN EXTENSION HARNESS, 4FT

4FT Extension Harness

$30.7

CAN EXTENSION HARNESS, 8FT

8FT Extension Harness

$35.83

CAN EXTENSION HARNESS, 9IN

9IN Extension Harness

$27.95

CAN2 Connector/Cable Kit

(for Racepak and other external CAN drives)

$65.1

Chrysler HEMI Drive-By-Wire Dual Throttle Body Harness

HEMI DUAL DBW HARNESS, 2013+ APPLICATION

$199.95

Connector J1A/B Input/Outputs Auxiliary Harness

Connector J1A/B Inputs/Outputs Auxiliary Harness for HP EFI & Dominator EFI

$69.29

Crank/Cam Ign. Harness. Fully terminated harness.

Crank/Cam Ign. Harness. Fully terminated harness.

$59.83

Crank/Cam Ign. Harness. Fully terminated harness.

Crank/Cam Ign. Harness for Ferrous Crank/Magnetic Cam Hall Effect Sensors. Fully terminated harness.

$57.23

Dominator EFI Auxiliary Harness

Dominator EFI Connector J2A Auxiliary Harness

$140.95

Dominator EFI Auxiliary Harness

Dominator EFI Connector J2B Auxiliary Harness

$93.46

Dominator EFI Auxiliary Harness

Dominator EFI Connector J3 Auxiliary Harness

$93.46

Dominator EFI Auxiliary Harness

Dominator EFI Connector J4 Auxiliary Harness

$117.95

Dominator EFI GM Drive-By-Wire Harness

Dominator EFI GM Drive-By-Wire Harness

$152.95

Dominator EFI GM Drive-By-Wire Harness - Early Truck

Drive-By-Wire Harness - Early Truck

$149.95

Dominator EFI GM Dual Drive-By-Wire Harness

Dominator EFI GM Dual Drive-By-Wire Harness

$198.95

Dominator EFI Multi Map Selector

Dominator EFI Multi Map Selector

$90.3

Ford 2V & 4V Modular Main Harness

Ford 2V & 4V Modular Main Harness, For HP EFI & Dominator EFI

$435.95

Ford 2V Modular Coil Harness

99-04 2 Valve Ford Modular Coil Harness, For HP EFI & Dominator EFI

$122.95

Ford 4R70W/4R75W Transmission Control Harness

Ford 4R70W/4R75W Transmission Control Harness (98-03)

$149.95

Ford 4V Modular Coil Harness

99-04 4 Valve Ford Modular Coil Harness, For HP EFI & Dominator EFI

$122.95

Ford Coyote (2011-2014) Drive-By-Wire Harness

Ford Coyote (2011-2014) Drive-By-Wire Harness

$153.95

Ford Coyote Coil Harness

2011 to present Ford Coyote Coil Harness, For HP EFI & Dominator EFI

$122.95

Ford Coyote Main Harness

Ford Coyote Main Harness, For HP EFI & Dominator EFI

$481.95

Ford Coyote Main Harness w/Smart Coils

Ford Coyote Main Harness, For HP EFI & Dominator EFI

$499.95

Ford MFPI Coil On Plug Main Harness:

Ford MFPI Coil On Plug Main Harness:

$359.95

Ford Modular 2 Valve EFI Harness Kit

1999-2004 Ford Modular 2 Valve Harness Kit

$819.95

Ford Modular 2V & 4V Main Harness w/Smart Coils

Main Harness for 1999-2004 2 & 4 Valve Ford Modular (4.6 & 5.4L) Engines w/ Smart Coils

$475.95

Ford TFI Ignition Harness

Ford TFI Ignition Harness for Avenger EFI, HP EFI & Dominator EFI

$71.4

Ford V8 Injector Harness

Ford V8 Injector Harness for HP EFI & Dominator EFI

$132.95

Ford V8 Injector Harness

Evenly spaced Ford V8 Injector Harness for USCAR / EV6 style Injectors

$102.95

Ford V8 Injector Harness

Evenly spaced Ford V8 Injector Harness for Jetronic "Bosch EV1" style Injectors

$102.95

Gen III HEMI Coil Harness - Early Coils

Gen III HEMI Coil Harness, Early Coils, for HP EFI & Dominator EFI

$103.95

Gen III HEMI Coil Harness - Late Coils

Gen III HEMI Coil Harness, Late Coils, for HP EFI & Dominator EFI

$103.95

Gen III HEMI Drive-By-Wire Harness - Early Pedal

Gen III HEMI Drive-By-Wire Harness - Early Harness with the larger TYCO/AMP connector (’03-’07 cars, ’03-’06 trucks) Dominator EFI Only Golden Rule: These are plug-and-play harnesses. If they don’t plug, don’t play. Only the 0459 1847 factory drive-by-wire throttle body has been pre-calibrated and approved for use with these harnesses.

$154.95

Gen III HEMI Drive-By-Wire Harness - Late Pedal

Gen III HEMI Drive-By-Wire Harness - Late pedal with the compact Molex connector ('08-2012 Up cars, '07- 2012 Trucks) Dominator EFI Only Golden Rule: These are plug-and-play harnesses. If they don’t plug, don’t play. Only the 0459 1847 factory drive-by-wire throttle body has been pre-calibrated and approved for use with these harnesses.

$154.95

Gen III HEMI Main Harness , Late, w/TPS and Idle Air Control Connections

Gen III HEMI Main Harness w/Throttle Position Sensor & Idle Air Control, For Late Crank & Cam Sensors, for HP EFI & Dominator EFI, For use with Cable Throttle Body.

$444.95

Gen III Hemi Main Harness - Early Crank & Cam Sensors

Gen III HEMI Main Harness, For Early Crank & Cam Sensors, for Dominator EFI - Requires DBW Throttle Body Harness. This harness DOES NOT have IAC / TPS connectors.

$438.95

Gen III Hemi Main Harness, Early, w/ TPS and Idle Air Control Connections

Gen III HEMI Main Harness w Throttle Position Sensor & Idle Air Control, For use with Cable Throttle Body.

$444.95

Gen III HEMI V8 Injector Harness - Bosch/Jetronic and Holley injectors used for upgrades and racing

Gen III HEMI Injector Harness with Bosch/Jetronic and Holley injectors used for upgrades and racing for HP EFI & Dominator EFI

$103.95

Gen III HEMI V8 Injector Harness - Stock/USCAR style injectors

Gen III HEMI Injector Harness with Stock/USCAR style Injectors for HP EFI & Dominator EFI

$103.95

GM 4L60/80E Transmission Harness

GM 4L60/80E Transmission Harness - Complete terminated harness with j4 connector to operate GM electronic transmissions. for Dominator EFI

$170.95

GM 58X EFI HARNESS KIT

GM LS2/LS3/LS7, 58X Crank Sensor, USCAR/ EV6 Injector

$512.95

GM LS 24X EFI HARNESS KIT

GM LS1/6, 24X Crank Sensor, Bosch Injector

$533.95

GM LS 58X EFI HARNESS KIT

GM LS2/LS3/LS7, 58X Crank Sensor, Bosch Injector

$533.95

GM TPI and Stealth Ram EFI HARNESS KIT

GM TPI and Holley Stealth Ram™

$470.95

HEI GM Small Cap Ignition Harness

HEI Ignition Harness for Avenger EFI, HP EFI & Dominator EFI

$30.41

Hemi Drive-By-Wire Throttle Body Harness

Hemi DBW Harness 2013+ Applications (Holley Dominator EFI Only)

$150.95

Holley DIS Coil to Holley LSx Harness Adapter

Holley Waste Fire DIS Coil to LSx Engine Harness

$72.43

Holley EFI ECU Pin Crimper

Ratcheting crimper tool for ECU Pins.

$249.95

Holley EFI Ignition Adapter Harness for FAST Dual Sync Distributors

EFI Ignition Adapter Harness for FAST™ Dual Sync Distributors

$20.95

Holley EFI LS Main Harness to LS3-style MAP Sensor Adapter

Adapter Harness

$25.18

INJECTOR HARNESS - EARLY TRUCK

LS MULTEC 2 INJECTOR HARNESS - EARLY TRUCK

$153.95

j2A, j2B, j3, j4 Connector & Pin Kit

j2A, j2B, j3, j4 Connector & Pin Kit - Contains connectors & pins, but no wiring. for Dominator EFI

$121.95

LS1/6 (24x/1x) Engine Main Harness

LS1/6 Main Harness for HP EFI & Dominator EFI

$382.95

LS2/3/7+ (58x/4x) Engine Main Harness

LS2/3/7+ (58x/4x) Engine Main Harness for HP EFI & Dominator EFI

$382.95

LSx Injector Harness - For EV6 Style Injectors

LSx Injector Harness for HP EFI & Dominator EFI

$99.76

Magnetic Pick-up Ignition Harness

Magnetic Pick-up Ignition Harness for HP EFI & Dominator EFI

$56.68

Main Power Harness

Main Power Harness for Avenger EFI, HP EFI, & Dominator EFI

$59.83

Sealed USB Data Cable

Holley EFI Sealed USB Cable 7' (comes with ECU)

$48.27

Sealed USB Data Cable

Holley EFI Sealed USB Cable 15'

$69.95

Tach Input Ignition Adapter

Tach Input Ignition Adapter

$12.95

TPI/Stealth Ram Main Harness

TPI/Stealth Ram™ Main Harness for Avenger EFI, HP EFI & Dominator EFI

$332.95

Universal 4 Cylinder Injector Harness

Universal 4 Cylinder Injector Harness for HP EFI & Dominator EFI

$72.43

Universal 4 EV14 Cylinder Injector Harness

Universal 4 Cylinder EV14 Injector Harness for HP EFI & Dominator EFI

$70.95

Universal 6 Cylinder Injector Harness

Universal 6 Cylinder Injector Harness for HP EFI & Dominator EFI

$120.95

Universal Ford V-8 Harness Kit

Universal Ford V8, Bosch Injector

$461.95

Universal MPFI Coil on Plug Main Harness

UNIVERSAL MPFI W/ COP MAIN HARNESS

$359.95

Universal MPFI Main Harness

Universal MPFI Main Harness for HP EFI & Dominator EFI

$320.95

Universal Unterminated Ignition Harness

Universal Unterminated Ignition Harness for HP EFI & Dominator EFI

$109.95

Universal Unterminated Injector Harness

Universal Unterminated Injector Harness for HP EFI & Dominator EFI(Bosch EV1 style).

$123.95

Universal V8 MPFI EFI HARNESS KIT

Universal V8 MPFI

$470.95

Unterminated 16 injectors MPFI harness

Unterminated 16 injectors MPFI harness Terminated at injector connectors (Bosch EV1 style).

$175.95

Unterminated 24 injector MPFI harness

Unterminated 24 injector MPFI harness Terminated at injector connectors (Bosch EV1 style).

$240.95

Unterminated Universal Main Harness

Unterminated Universal Main Harness for HP EFI & Dominator EFI

$319.95

V8 over Manifold, Bosch Style Injector Harness

V8 over Manifold, Bosch Style Connector Harness for Avenger EFI, HP EFI & Dominator EFI. GM / Chrysler Cylinder Orientation

$117.95

Items - 79 of 79

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About Us

Holley® has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every NASCAR® Sprint® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies we can give you the edge you need over the competition!

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Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR® Sprint® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Read More...

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