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  • Standard order lead time for Standalone Harnesses:

    Gen V - 4-5 weeks

    Gen 3 or Gen 4 -1-2 weeks (Several LS3 kits in stock!)

    Need it sooner? Give us a call to discuss expediting. Limited slots available.

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

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LT4/Manual Harness Package (2017+)
LT4/Manual Harness Package (2017+) - Image 1 of 0
LT4/Manual Harness Package (2017+) - Image 2 of 0
LT4/Manual Harness Package (2017+) - Image 1 of 0
LT4/Manual Harness Package (2017+) - Image 2 of 0
LT4/Manual Harness Package (2017+) - Image 1 of 0
LT4/Manual Harness Package (2017+) - Image 2 of 0

LT4/Manual Harness Package (2017+)

$
Choose your options:
Fuel System:
Transmission(required):
Add MAF Sensor?:
Add O2 Sensors?:
Gear Ratio/Tire(required):
Emissions Wiring(required):
Front End Drive(required):
Examples are Holley, Wegner, CVF Racing, Drive Junky, etc.
Year of Engine:
Product Code: LT4-M-HP_2022
See top for lead time
Our harness package includes the standalone wiring harness, programmed ECM 2017+, and ETC pedal.
This package is for use with LT4 engines using a 3-wire fuel rail pressure sensor.
2022 Modules are provided for new GM crate engines.
Please give us a call for additional details!
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