FT700 C&D Harness 10ft
$329.00
KMDZ_2001008771
Engine Wiring Harnesses
Ignitions and Electrical
In Stock
New Products
Wiring Harnesses
Engine Control Harness - C / D-Harness - 10 ft - FT700 ECU - Each
PRO550 V8 Complete Harness Chevy/Mopar
$1,399.00
KMDZ_3026109037
Engine Wiring Harnesses
Ignitions and Electrical
In Stock
New Products
Wiring Harnesses
Engine Control Harness - Complete Engine Harness - FT550 ECU to GM / Mopar V8 - Each
PRO600 V8 Complete Wiring Harness
$1,699.00
KMDZ_3026109080
Engine Wiring Harnesses
Ignitions and Electrical
In Stock
New Products
Wiring Harnesses
Engine Control Harness - Complete Engine Harness - PRO600 Gen III ECU to GM / Chrysler V8 - Each
TPI Stealth Ram Main Harness
$649.95
$583.95
BBVL_558-101
Engine Wiring Harnesses
HLY — HOLLEY
Ignitions and Electrical
In Stock
New Products
Wiring Harnesses
EFI Wiring Harness - TPI Stealth Ram - Main Harness - Avenger EFI / HP EFI / Dominator EFI - Various GM Applications -...
LS550 V8 Complete Harness
$799.00
KMDZ_2002007265
Engine Wiring Harnesses
Ignitions and Electrical
In Stock
New Products
Wiring Harnesses
Engine Harness - Terminated - FuelTech FT550 to GM LS-Series Engine - Each
PRO600 Ford V8 Complete Harness
$1,998.99
KMDZ_3026100077
Engine Wiring Harnesses
Ignitions and Electrical
In Stock
New Products
Wiring Harnesses
Engine Control Harness - Complete Engine Harness - FT600 ECU to Ford V8 - Each
PRO550 Ford V8 Complete Harness
$1,249.00
KMDZ_3026100192
Engine Wiring Harnesses
Ignitions and Electrical
In Stock
New Products
Wiring Harnesses
Engine Control Harness - Complete Engine Harness - FT550 ECU to Ford V8 - Each
FT550 B Harness 10ft
$139.00
KMDZ_2001005571
Engine Wiring Harnesses
Ignitions and Electrical
In Stock
New Products
Wiring Harnesses
Engine Control Harness - B-Harness - 10 ft - FT550 ECU - Each
FT450/550 A Harness 10ft
$139.00
KMDZ_2001005569
Engine Wiring Harnesses
Ignitions and Electrical
In Stock
New Products
Wiring Harnesses
Engine Control Harness - A-Harness - 10 ft - FT450 / FT550 ECU - Each
FT550 B Harness 20ft
$189.00
KMDZ_2001005572
Engine Wiring Harnesses
Ignitions and Electrical
In Stock
New Products
Wiring Harnesses
Engine Control Harness - B-Harness - 20 ft - FT550 ECU - Each
FT450/550 Sportsman A Datalogging Harness
$749.00
KMDZ_2002007356
Engine Wiring Harnesses
Ignitions and Electrical
In Stock
New Products
Wiring Harnesses
Engine Control Harness - Terminated - FT450 / FT550 Datalogging - Each
FT450/550 A Harness 20ft
$189.00
KMDZ_2001005570
Engine Wiring Harnesses
Ignitions and Electrical
In Stock
New Products
Wiring Harnesses
Engine Control Harness - A-Harness - 20 ft - FT450 / FT550 ECU - Each
Harness Adapter CS130D to CS130
$32.99
BCTD_160
Engine Wiring Harnesses
Ignitions and Electrical
In Stock
New Products
Wiring Harnesses
Alternator Harness Adapter - Powermaster CS130D to CS130 - Each
Magnetic Pick-up Ignition Harness for HP EFI & Dominator EFI
$91.06
$81.95
GVMR_558-303
Distributor and Magneto
Distributor Ignition Pickup
Engine Wiring Harnesses
Ignition
Ignitions and Electrical
New Products
Out of Stock
Wiring Harnesses
Shielded Unterminated Magnetic Pick-Up harness for Holley EFI systems
Weatherpak to GT MAP Adapter Harness
$51.85
$46.09
GVMR_558-466
Emission Control
Engine Wiring Harnesses
Hardware, Fasteners and Fittings
Ignitions and Electrical
In Stock
Manifold Absolute Pressure Sensor Adapter
New Products
Wiring Harnesses
These two new MAP sensor adapters from Holley EFI allow you to quickly add a stainless steel MAP sensor to your existing installation. Holley...
Holley EFI Terminator X Wideband Adapter Harness
$70.95
$64.15
GVMR_558-463
Electrical Connectors
Electrical, Lighting and Body
Engine Wiring Harnesses
Ignitions and Electrical
In Stock
New Products
Uncategorized
Wiring Harness Adapter
Wiring Harnesses
Service harness sensor adapter for Terminator X and X Max ECU only.
Evenly spaced Ford V8 Injector Harness for USCAR / EV6 style Injectors
$219.95
$194.95
GVMR_558-212
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
In Stock
New Products
Wire, Cable and Related Components
Wiring Harnesses
Ford V8 Injector Harness for Ford USCAR / EV6 style Fuel Injectors (Evenly Spaced)
NEW DEVICE TO TWO PIN MAIN HARNESS
$47.22
$41.97
GVMR_558-430
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
In Stock
New Products
Wire, Cable and Related Components
Wiring Harnesses
The Holley EFI Can Adapter/Power Harness adapts two pin Holley main harness CAN connectors to new style 4 pin CAN devices.
CAN Extension Harness - 9''
$59.95
$52.69
GVMR_558-428
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
In Stock
New Products
Wire, Cable and Related Components
Wiring Harnesses
Can Extension Harness (for Racepak and other external CAN drives)
Holley EFI GM Drive-By-Wire Harness - Early Truck
$303.95
$269.95
GVMR_558-429
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
In Stock
New Products
Wire, Cable and Related Components
Wiring Harnesses
Terminator X Max and Dominator EFI GM DBW Harness-Early Truck. Compatible with GM part number 10379038.
CAN EXTENSION HARNESS, 12FT
$88.95
$79.05
GVMR_558-426
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
In Stock
New Products
Wire, Cable and Related Components
Wiring Harnesses
CAN Extension Harness (for Racepak and other external CAN drives)
10-Pin Harness - Sniper TBI
$66.09
GVMR_558-491
Engine Wiring Harnesses
Ignitions and Electrical
In Stock
New Products
Wiring Harnesses
EFI Wiring Harness - Input / Output Harness - Holley Sniper EFI - Each
Universal MPFI Main Harness for HP EFI & Dominator EFI
$595.95
$549.95
GVMR_558-104
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
In Stock
New Products
Wire, Cable and Related Components
Wiring Harnesses
Universal MPFI Main Harness for HP EFI & Dominator EFI
Universal Unterminated Injector Harness
$254.95
$226.15
GVMR_558-204
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
In Stock
New Products
Wire, Cable and Related Components
Wiring Harnesses
Universal Unterminated Injector Harness for HP EFI & Dominator EFI(Bosch EV1 style).
Unterminated Universal Main Harness for HP EFI & Dominator EFI
$595.95
$528.95
GVMR_558-105
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
In Stock
New Products
Wire, Cable and Related Components
Wiring Harnesses
Unterminated Universal Main Harness for HP EFI & Dominator EFI
LS2/3/7+ (58x/4x) Engine Main Harness for HP EFI & Dominator EFI
$712.95
$632.95
GVMR_558-103
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
In Stock
New Products
Wire, Cable and Related Components
Wiring Harnesses
This harness has been designed to interface with 58x crank and 4x cam sensors. These engines are commonly found in 2006+ Year Model vehicles...
Holley EFI Transmission Control Harness - GM 4L60 (Pre-2009) and 4L80
$337.95
$299.95
GVMR_558-405
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
In Stock
New Products
Wire, Cable and Related Components
Wiring Harnesses
Expanding our transmission control options for our EFI systems, this harness provides plug and play for Pre-2009 GM 4L60 and 4L80 transmissions using a...
Holley EFI GM Drive-By-Wire Harness
$281.95
$249.95
GVMR_558-406
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
In Stock
New Products
Wire, Cable and Related Components
Wiring Harnesses
Dominator EFI GM Drive-By-Wire Harness
CAN Extension Harness - 8'
$74.95
$65.85
GVMR_558-425
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
In Stock
New Products
Wire, Cable and Related Components
Wiring Harnesses
Can Extension Harness (for Racepak and other external CAN drives)
Firmware Updating - Dash Configuration - ECU Testing
$260.95
$231.95
GVMR_558-127
ECU Tuning
Engine Wiring Harnesses
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignitions and Electrical
In Stock
New Products
Wiring Harnesses
Also includes a power switch for quick setup in your workspace. Power and Ground flying leads need to be connected to your battery or...
LS1/6 Main Harness for HP EFI & Dominator EFI
$712.95
$649.95
GVMR_558-102
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
In Stock
New Products
Wire, Cable and Related Components
Wiring Harnesses
This harness is designed for LS1/6 Engines, from 1997-2004. This harness interfaces with 24x Crank and 1x Cam sensors.
Dominator EFI Connector J2B Auxiliary Harness
$197.95
$175.95
GVMR_558-402
Engine Wiring Harnesses
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignitions and Electrical
In Stock
New Products
Wiring Harnesses
Dominator EFI Connector J2B Auxiliary Harness
Delphi M/P 150 to GT MAP Adapter Harness
$40.50
$36.00
GVMR_558-467
Emission Control
Engine Wiring Harnesses
Hardware, Fasteners and Fittings
Ignitions and Electrical
In Stock
Manifold Absolute Pressure Sensor Adapter
New Products
Wiring Harnesses
These two new MAP sensor adapters from Holley EFI allow you to quickly add a stainless steel MAP sensor to your existing installation. Holley...
For Dominator, HP, Terminator X and Terminator X Max
$143.95
$130.95
GVMR_558-400
Engine Wiring Harnesses
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignitions and Electrical
In Stock
New Products
Wiring Harnesses
This harness connects to the (8) pin Metri-Pack Input/Output connector located in most Holley EFI main harnesses.
Dominator EFI Connector J2A Auxiliary Harness
$257.95
$228.95
GVMR_558-401
Engine Wiring Harnesses
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignitions and Electrical
In Stock
New Products
Wiring Harnesses
Used when adding a second wide band oxygen sensor to a Dominator EFI installation.
Holley EFI LS Main Harness to LS3-style MAP Sensor Adapter
$45.24
$40.21
GVMR_558-416
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Wiring Harness Adapter
Hardware, Fasteners and Fittings
Ignitions and Electrical
In Stock
New Products
Wiring Harnesses
Holley EFI LS main harnesses have a MAP sensor connecter designed for use with an LS1/2 style MAP sensor. The 558-416 is an adapter...