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1/2 Inch Chrome 6 Foot Length
$19.54
$16.95
BCZG_4522
Best Sellers
Hardware and Service Supplies
Wire Conduit
Wire, Cable and Related Components
Slit for easy wire insertion and removal. Includes six 4 inch length tie straps.
3/8 Inch Black 8 Foot Length
$16.25
$14.09
BCZG_4505
Best Sellers
Hardware and Service Supplies
Wire Conduit
Wire, Cable and Related Components
Slit for easy wire insertion and removal. Includes six 4 inch length tie straps.
Electric Fuel Pump Harness & Relay Wiring Kit. 30 Amp Relay and Circuit Breaker.
$49.58
$43.55
BCZG_40205G
Air and Fuel Delivery
Best Sellers
Fuel Pump Wiring Harness
Wire, Cable and Related Components
Mr. Gasket wiring harness & relay kits protect your electrical system and provide reliable and consistent power for your high performance electric fuel pump....
Mr. Gasket Electric Fan Harness & Relay Kit with 185 Degree Temperature Switch
$72.15
$63.39
BCZG_40102G
Belts and Cooling
Best Sellers
Engine Cooling Fan Motor Wiring Harness
Wire, Cable and Related Components
Mr. Gasket wiring harness & relay kits protect your electrical system and provide reliable and consistent power for your high performance electric fan. These...
For 1979 to 1993 Ford Mustangs when converting to Holley EFI ECU
$1,094.95
$949.95
GVMR_558-513
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
This harness is for fuel injected small block ford engines such as 5.0L or 5.8L Windsor powerplants. Plug and play ignition capability with Dual...
M8 Extension Harness for Sniper 2 - 4ft
$45.25
$39.24
GVMR_558-484
Best Sellers
Electrical, Lighting and Body
Engine Wiring Harness Extension
Wire, Cable and Related Components
Ideal for connecting any Sniper 2 EFI M8 accessories such as the Bluetooth Module, 5" Sniper 2 Dash, or 12.3" and 6.86" Pro Dash
Holley EFI Ford Crank Sensor Module - Ford 7.3L Godzilla
$66.95
$57.49
GVMR_558-474
Best Sellers
Electrical, Lighting and Body
Engine Crankshaft Position Sensor Wiring Harness
Wire, Cable and Related Components
Crank signal conditioning module for HP, Dominator, and Terminator X ECU's. Requires Holley EFI V6 Build 300 or Terminator X V3 Build 100, or...
Throttle Body - JL3E-9F991-AA - Throttle Pedal - BR3Z-9F836-D
$322.95
$279.95
GVMR_558-469
Electrical, Lighting and Body
Throttle Body Wiring Harness
Wire, Cable and Related Components
The Holley Dominator and Terminator X Max ECU’s have built-in capability to control the Drive-By-Wire throttle pedals and throttle bodies used on most 2018-2022...
This is the harness included with standalone pro dashes.
$402.95
$357.95
GVMR_558-457
Display Wiring Harness
Electrical, Lighting and Body
Wire, Cable and Related Components
Holley EFI Pro Dash replacement harness for standalone digital dashes.
Holley EFI GM GEN V GDI Sub Harness
$168.95
$149.95
GVMR_558-221
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
GM GEN V GDI Sub harness for Late LTx Engines. The fuel pressure sensor easily identifies these engines, Late engines use a 3-pin fuel...
Holley EFI GM GEN V GDI Sub Harness
$172.95
$149.95
GVMR_558-220
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
GM GEN V GDI Sub harness for early LTx Engines. The fuel pressure sensor easily identifies these engines, early engines use a 4-pin fuel...
Includes VVT and Oil Pump Connectors on IGN1A Smart Coils
$575.95
$499.95
GVMR_558-141
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
The Terminator X offers an advanced engine management solution specifically tailored for the formidable 7.3-liter Godzilla engine. Designed to unlock the full potential of...
Ford 7.3L Godzilla Main Harness for Stock Coils
$562.95
$499.95
GVMR_558-140
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
The Terminator X offers an advanced engine management solution specifically tailored for the formidable 7.3-liter Godzilla engine. Designed to unlock the full potential of...
For use with Terminator X - Requires V3 Software
$662.95
$574.95
GVMR_558-130
Engine
Engine Control Module (ECM) Wiring Harness
Wire, Cable and Related Components
This harness is designed for use with Terminator X ECU's Only with V3 build 100 or later.
Holley EFI Gen V LT Engine Main Harness
$662.95
$574.95
GVMR_558-129
Engine
Engine Control Module (ECM) Wiring Harness
Wire, Cable and Related Components
This harness is designed for use with Terminator X and X Max ECU's Only.
GM LS2/LS3/LS7, 58X Crank Sensor, USCAR/ EV6 Injector
$1,037.95
$899.95
GVMR_558-501
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important...
Injector upgrade harness for Terminator Throttle Bodies.
$287.95
$249.95
GVMR_558-439
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
Injector upgrade harness for Terminator Throttle Body Systems. This harness is designed to be plug and play with our 205 lb/hr injector upgrade kit,...
Gen III HEMI V8 Injector Harness - Stock/USCAR style injectors
$224.95
$199.95
GVMR_558-210
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
An Injector Harness is required and Holley offers two. The harness with USCAR/Stock injector connectors will cover most applications that are using the factory...
Holley EFI Main Power Harness for Coyote Ti-VCT Applications
$69.95
$61.85
GVMR_558-319
Best Sellers
Engine
Engine Control Module (ECM) Wiring Harness
Wire, Cable and Related Components
Introducing Coyote Twin Independent Variable Cam Timing Control from Holley EFI. Unlock the full potential of your high revving power plant with the Holley...
Transbrake Input Protection Module
$68.95
$59.25
GVMR_554-128
Best Sellers
Circuit Protection Wiring Harness
Electrical, Lighting and Body
Wire, Cable and Related Components
This device allows for an ECU input to be safely connected directly to the +12V side of the transbrake solenoid. It protects the ECU...
Ford Coyote Ti-VCT Harness Kit
$2,081.95
$1,799.95
GVMR_558-510
Engine
Engine Wiring Harness
Wire, Cable and Related Components
Introducing Coyote Twin Independent Variable Cam Timing Control from Holley EFI! Do you have a coyote crate engine going in your dream car? Is...
Holley EFI Coyote Ti-VCT Main Harness for Holley EFI HP Smart Coils (2011-2017)
$1,094.95
$949.95
GVMR_558-122
Engine
Engine Wiring Harness
Wire, Cable and Related Components
Introducing Coyote Twin Independent Variable Cam Timing Control from Holley EFI! Do you have a coyote crate engine going in your dream car? Is...
Coyote Ti-VCT Sub Harness for 2011-2012 Engines with Stock Camshafts
$313.95
$272.95
GVMR_558-124
Engine
Engine Wiring Harness
Wire, Cable and Related Components
Introducing Coyote Twin Independent Variable Cam Timing Control from Holley EFI! Do you have a coyote crate engine going in your dream car? Is...
Coyote Ti-VCT Sub Harness for 2013-2017 Coyote Engines with Stock Camshafts
$461.95
$399.95
GVMR_558-125
Engine
Engine Wiring Harness
Wire, Cable and Related Components
Introducing Coyote Twin Independent Variable Cam Timing Control from Holley EFI! Do you have a coyote crate engine going in your dream car? Is...
Holley EFI Ford Coyote Engine Main Harness w/ Ti-VCT and Stock Coils (2011-2017)
$979.95
$849.95
GVMR_558-110
Engine
Engine Wiring Harness
Wire, Cable and Related Components
Introducing Coyote Twin Independent Variable Cam Timing Control from Holley EFI! Do you have a coyote crate engine going in your dream car? Is...
Wideband Oxygen Sensor Extension Cable
$182.95
$161.95
GVMR_534-199
Emission Control
Oxygen Sensor Cable
Wire, Cable and Related Components
Wideband Oxygen Sensor Extension Cable, 4'
Pre-Terminated J1A / J1B 15' Flying Lead Main Harness
$490.95
$425.95
GVMR_558-126
Engine
Engine Wiring Harness
Wire, Cable and Related Components
The unterminated main harness comes with both J1A and J1B connectors full terminated with 15' of flying lead wiring.
Sniper 2 EFI Input/Output Harness
$51.72
$44.85
FRCQ_558-497
Accessory Wiring Harness
Best Sellers
Electrical, Lighting and Body
Wire, Cable and Related Components
This harness gives you the access to (2) ground trigger inputs, (2) ground trigger outputs, points output, tachometer output, and digital gauge output wires....
Eliminates the need to rewire your existing Sniper EFI installation
$64.95
$56.09
FRCQ_558-489
Best Sellers
Engine
Engine Control Module (ECM) Wiring Harness
Wire, Cable and Related Components
Want to make the switch from the original Sniper EFI to Sniper 2 and don't want to rewire your system? This harness is designed...
Harness with Fuse and Fuel Pump Relay for Sniper 2 Throttle Body Systems
$245.95
$212.95
FRCQ_558-191
Engine
Engine Control Module (ECM) Wiring Harness
Wire, Cable and Related Components
This harness includes a switched 12V, battery+ and ground-, fuel pump relay, coil input wire, and HyperSpark distributor connector. The wiring is braided split...
Use with Holley PDM and Sniper 2
$168.95
$145.95
FRCQ_558-190
Chassis Power Distribution Module Wiring Harness
Electrical, Lighting and Body
Wire, Cable and Related Components
This harness includes a switched 12V, battery+ and ground-, fuel pump relay, coil input wire, and HyperSpark distributor connector. The wiring is braided split...
Sniper 2 PDM
$218.95
$189.95
FRCQ_554-200
Electrical, Lighting and Body
Power Distribution Block
Wire, Cable and Related Components
The Power Distribution Module (PDM) is a perfect accessory that removes the manual process of connecting all your electrical wires and moving them into...
Input/Output Harness for Sniper EFI Systems
$74.95
$64.49
FRCQ_558-491
Accessory Wiring Harness
Best Sellers
Electrical, Lighting and Body
Wire, Cable and Related Components
This harness gives you the access to (2) ground trigger inputs, (3) ground trigger outputs, points output, tachometer output, and digital gauge output wires....
Main Battery Harness with Fuse and Fuel Pump Relay
$192.45
$168.95
FRCQ_558-490
Engine
Engine Control Module (ECM) Wiring Harness
Wire, Cable and Related Components
This harness includes switched 12V power, battery positive and negative, fuel pump relay, coil input, and magnetic distributor input wires. Six feet of 3/8"...
For LTx Throttle Bodies and Terminator X and X Max ECUs
$327.95
$283.95
GVMR_558-468
Electrical, Lighting and Body
Throttle Body Wiring Harness
Wire, Cable and Related Components
GM GEN V LTx DBW Harness. Compatible with GM part number 12617792 (L83), and 12678223 (L86, LT1, LT4).
For Dominator, HP, Terminator X and Terminator X Max ECU's
$775.95
$672.95
GVMR_558-133
Engine
Engine Wiring Harness
Wire, Cable and Related Components
This harness is designed for LS1/6 engines from 1997-2004. This harness interfaces with 24x crank and 1x cam sensors. Harness is a perfect fit...
