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  • Standard order lead time for STANDALONE WIRING HARNESSES is estimated to be 7-9 weeks from date of purchase.

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    All other items typically ship within 3-5 business days unless specified otherwise.

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LT4/10 Speed Harness Package
LT4/10 Speed Harness Package - Image 1 of 0
LT4/10 Speed Harness Package - Image 2 of 0
LT4/10 Speed Harness Package - Image 1 of 0
LT4/10 Speed Harness Package - Image 2 of 0
LT4/10 Speed Harness Package - Image 1 of 0
LT4/10 Speed Harness Package - Image 2 of 0

LT4/10 Speed Harness Package

$
Choose your options:
Fuel System:
Year/Model of Donor Vehicle(required):
Add MAF Sensor?:
Add O2 Sensors?:
Add NSS?:
Neutral Safety Switch for 10 speed automatics to prevent the vehicle from starting in gear.
Gear Ratio/Tire(required):
Emissions Wiring(required):
Transmission Generation:
Front End Drive(required):
Examples are Holley, Wegner, CVF Racing, Drive Junky, etc.
10L Tap Shifter(required):
Product Code: LT4-10L-HP
See top for lead time
Our harness package includes the standalone wiring harness, programmed ECM, programmed TCM, and ETC pedal.
The default harness length is 42" long from the passenger side rear head. This is meant to mount the controller INSIDE the vehicle in a dry location. Custom layouts are available for an additional fee, through PHONE or EMAIL order only. All online orders are for our default 42" in-car layout only!
Every harness is built to order to match your specific engine/transmission setup. This includes the front end accessory drive you install, add-on options being integrated at the time of purchase, and which specific fuel system you intend to run.

The harness is an easy "3-wire" hook-up. Take our ignition, battery, and fuel pump wires from our harness to your chassis wiring to get up and running!
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