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  • Standard order lead time for STANDALONE WIRING HARNESSES is estimated to be 10-12 weeks from date of purchase.

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LT1/L83/L86 with 8L90 Standalone Harness

LT1/L83/L86 with 8L90 Standalone Harness

The Speartech Gen 5 L83/L86/LT1 standalone harness includes:

  • Speartech standalone wiring harness with labeled connectors and hook-up wires
  • Instructions
Choose your options:
Fuel System:
Only applies to customers using a Camaro tune in the computers
Vehicle your engine came from?:
Sending in ECM for reprogramming?(required):
Sending in TCM for reprogramming?(required):
Add MAF Sensor?:
Add O2 Sensors?:
Add NSS?:
Gear Ratio/Tire(required):
Pedal Connector(required):
Cruise Control(optional):
Emissions Wiring(required):
Front End Drive(required):
Examples are Holley, Wegner, CVF Racing, Drive Junky, etc.
Engine Year:
What year is your transmission?:
Product Code: gen5harness8L90
Subject to availability
New harness for use with L83/L86/LT1/L8T engine paired to the 8L90 8-speed automatic transmission.
Tap shift options vary based upon what tune is currently in your computer(s). Replacement computers are available for an additional fee.
ECM shown for reference only, not included.