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Gen 5 L83/L86/LT1 Harness with 8L90 Trans
Gen 5 L83/L86/LT1 Harness with 8L90 Trans
The Speartech Gen 5 L83/L86/LT1 standalone harness includes:

  • Speartech standalone wiring harness with labeled connectors and hook-up wires
  • Instructions
Our Price: $1,450.00

Availability:: Please see the 'Contact Info' section for current lead times on harnesses.

Add Gen 5 Sensor Package?:

Call us at (765) 378-4908 to order.
New harness for use with L83/L86/LT1 engine paired to the 8L90 8-speed automatic transmission.

Reprogramming options:
2014-2016 ECM $400
2017 ECM $500

If you don't have an ECM, we can provide a new, programmed one for $750.

TCM Reprogramming: $125
New, programmed TCM: $350

ECM shown for reference only, not included.

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