Unterminated 15' Flying Lead Main Harness
$506.95
$449.95
GVMR_558-126
Engine
Engine Wiring Harness
Engine Wiring Harnesses
Ignition Wiring Harnesses
Ignitions and Electrical
Wire, Cable and Related Components
Wiring Harnesses
The unterminated main harness comes with both J1A and J1B connectors full terminated with 15' of flying lead wiring.
Fuel Injection Wiring Harness; Mechanical Throttle; Standard Length;
$569.99
DHDT_60508
Air and Fuel Delivery
Engine
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
Wire, Cable and Related Components
Wiring Harnesses
Designed for 1998-2002 LS1 mechanical throttle body engines with 1999+ LS1/LS6 ECM with a 4L60E/4L65E automatic or T56 manual trans. Will also work on...
Fuel Injection Wiring Harness; Standard Length; Grommet Firewall Pass Through;
$669.99
DHDT_60502
Air and Fuel Delivery
Engine
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
Wire, Cable and Related Components
Wiring Harnesses
Painless maintains strict quality requirements for all raw material suppliers to ensure the highest quality finished product. Only American venders are approved. Quality is...
Fuel Injection Wiring Harness; Extra Length; Grommet Firewall Pass Through;
$734.99
DHDT_60505
Air and Fuel Delivery
Engine
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
Wire, Cable and Related Components
Wiring Harnesses
Painless maintains strict quality requirements for all raw material suppliers to ensure the highest quality finished product. Only American venders are approved. Quality is...
Fuel Injection Wiring Harness; Standard Length;
$534.99
DHDT_60510
Air and Fuel Delivery
Engine
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
Wire, Cable and Related Components
Wiring Harnesses
For maximum power with exceptional drivability, transplant the power of fuel injection into your vehicle with Painless Performance fuel injection harnesses. All kits include...
Fuel Injection Wiring Harness
$735.99
DHDT_60221
Air and Fuel Delivery
Engine
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
Wire, Cable and Related Components
Wiring Harnesses
Designed for use on 1999-2006 4.8L, 5.3L, 6.0L throttle by wire engines with 4L60E-4L85E or manual trans. 1999-2002 engines require a 2003-2006 TBW throttle...
Fuel Injection Wiring Harness; Mechanical Throttle Only; Standard Length;
$624.99
DHDT_60217
Air and Fuel Delivery
Engine
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
Wire, Cable and Related Components
Wiring Harnesses
This harness is designed for the 1999-2006 4.8L, 5.3L, 6.0L mechanical throttle body engines using an LS1 / LS6 PCM with a 4L60E, 4L65E,...
Fuel Injection Wiring Harness; Mechanical Throttle Only; Extra Length;
$659.99
DHDT_60218
Air and Fuel Delivery
Engine
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
Wire, Cable and Related Components
Wiring Harnesses
Designed for 1999-2006 4.8L, 5.3L, 6.0L mechanical throttle body engines using LS1/LS6 PCM and 4L60E, 4L65E, 4L70E, 4L80E, 4L85E or manual trans. 2003-2006 Engines...
Air Conditioning Wiring Harness
$105.99
DHDT_30902
Engine Wiring Harnesses
HVAC
HVAC Wiring Harness
Ignitions and Electrical
Wire, Cable and Related Components
Wiring Harnesses
Air Conditioning Wiring Harness; Replaces Factory Harness; For Use w/Chassis Harness PN[20205];
LS1/6 (24x/1x) Engine Main Harness
$760.95
$675.95
GVMR_558-102
Air and Fuel Delivery
Engine
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
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.
Universal MPFI Main Harness
$643.95
$571.95
GVMR_558-104
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
Wire, Cable and Related Components
Wiring Harnesses
Universal MPFI Main Harness for HP EFI & Dominator EFI
Unterminated Universal Main Harness
$643.95
$571.95
GVMR_558-105
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
Wire, Cable and Related Components
Wiring Harnesses
Unterminated Universal Main Harness for HP EFI & Dominator EFI
LS2/3/7+ (58x/4x) Engine Main Harness
$760.95
$675.95
GVMR_558-103
Air and Fuel Delivery
Engine
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
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...
Ford Modular 2V and 4V Main Harness for use with Holley Smart Coils
$1,068.95
$696.95
GVMR_558-113
Engine
Engine Wiring Harnesses
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignitions and Electrical
Wiring Harnesses
Main Harness for 99-04 2 & 4 Valve Ford Modular (4.6 & 5.4L) Engines for use with Holley Smart Coils
10-Pin Harness - Sniper TBI
$61.88
GVMR_558-491
Engine Wiring Harnesses
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - Input / Output Harness - Holley Sniper EFI - Each
7-Pin Main Harness - Sniper TBI
$157.45
GVMR_558-490
Engine Wiring Harnesses
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - Main Battery Harness - Fuse / Fuel Pump Relays - Kit
Delphi M/P 150 to GT MAP Adapter Harness
$43.18
$19.95
GVMR_558-467
Emission Control
Engine Wiring Harnesses
Hardware, Fasteners and Fittings
Ignitions and Electrical
Manifold Absolute Pressure Sensor Adapter
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...
Weatherpak to GT MAP Adapter Harness
$56.19
$49.95
GVMR_558-466
Emission Control
Engine Wiring Harnesses
Hardware, Fasteners and Fittings
Ignitions and Electrical
Manifold Absolute Pressure Sensor Adapter
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
$75.95
$66.75
GVMR_558-463
Electrical Connectors
Electrical, Lighting and Body
Engine Wiring Harnesses
Ignitions and Electrical
Uncategorized
Wiring Harness Adapter
Wiring Harnesses
Service harness sensor adapter for Terminator X and X Max ECU only.
Crank/Cam Ign. Harness. Fully terminated harness.
$116.95
$103.95
GVMR_558-431
Engine Wiring Harnesses
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignitions and Electrical
Wiring Harnesses
This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER...
CAN Adapter/Power Harness
$50.33
$44.74
GVMR_558-430
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
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.
Holley EFI GM Drive-By-Wire Harness - Early Truck
$321.95
$285.95
GVMR_558-429
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
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 - 9''
$63.95
$56.25
GVMR_558-428
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
Wire, Cable and Related Components
Wiring Harnesses
Can Extension Harness (for Racepak and other external CAN drives)
CAN EXTENSION HARNESS, 12FT
$94.95
$84.29
GVMR_558-426
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
Wire, Cable and Related Components
Wiring Harnesses
CAN Extension Harness (for Racepak and other external CAN drives)
CAN Extension Harness - 8'
$78.95
$70.19
GVMR_558-425
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
Wire, Cable and Related Components
Wiring Harnesses
Can Extension Harness (for Racepak and other external CAN drives)
Ford Coyote Drive-By-Wire Harness
$337.95
$225.95
GVMR_558-422
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
Wire, Cable and Related Components
Wiring Harnesses
Drive-By-Wire harness for 2011-2017 Ford Coyote (5.0L) engines
Holley EFI LS Main Harness to LS3-style MAP Sensor Adapter
$48.23
$42.87
GVMR_558-416
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Wiring Harness Adapter
Hardware, Fasteners and Fittings
Ignitions and Electrical
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...
Holley EFI GM Drive-By-Wire Harness
$292.95
$259.95
GVMR_558-406
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
Wire, Cable and Related Components
Wiring Harnesses
Dominator EFI GM Drive-By-Wire Harness
Holley EFI Transmission Control Harness - For 1996-2008 GM 4L60E and 4L80E
$358.95
$318.95
GVMR_558-405
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
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...
Dominator EFI Auxiliary Harness
$210.95
$186.95
GVMR_558-402
Engine Wiring Harnesses
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignitions and Electrical
Wiring Harnesses
J2B Connector Four Additional Injector Driver Outputs Four Additional Coil Driver Outputs 23 User Programmable Outputs
Dominator EFI Auxiliary Harness
$273.95
$242.95
GVMR_558-401
Engine Wiring Harnesses
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignitions and Electrical
Wiring Harnesses
Used when adding a second wide band oxygen sensor to a Dominator EFI installation.
Connector J1A/B Input/Outputs Auxiliary Harness
$152.95
$135.95
GVMR_558-400
Engine Wiring Harnesses
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignitions and Electrical
Wiring Harnesses
This harness connects to the (8) pin Metri-Pack Input/Output connector located in most Holley EFI main harnesses.
Main Power Harness
$124.95
$110.95
GVMR_558-308
Engine Wiring Harnesses
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignitions and Electrical
Wiring Harnesses
This Harness is required with HP or Dominator ECUs. Includes, 13' long, 10 AWG main power harness, Qty. (2) 3/8" ring terminals and shrink...
Universal Unterminated Ignition Harness
$219.95
GVMR_558-306
Engine Wiring Harnesses
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignitions and Electrical
Wiring Harnesses
Universal Unterminated Ignition Harness for HP EFI & Dominator EFI
Magnetic Pick-up Ignition Harness for HP EFI & Dominator EFI
$91.06
GVMR_558-303
Distributor and Magneto
Distributor Ignition Pickup
Engine Wiring Harnesses
Ignition
Ignitions and Electrical
Wiring Harnesses
Shielded Unterminated Magnetic Pick-Up harness for Holley EFI systems
Ford V8 Injector Harness
$233.95
$207.95
GVMR_558-212
Air and Fuel Delivery
Engine Wiring Harnesses
Fuel Injection Harness
Ignitions and Electrical
Wire, Cable and Related Components
Wiring Harnesses
Ford V8 Injector Harness for Ford USCAR / EV6 style Fuel Injectors (Evenly Spaced)
