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Gen V L83 L86 L8T 8L90E Stocker Series Standalone Harness

Gen V L83 L86 L8T E92 standalone engine harness with 8L90E transmission
Use with MAF sensor p/n 23262343 or equivalent
Use with Oxygen Sensor p/n 12659516 or equivalent
Wired for Corvette pedal p/n 19417903


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Photos of products are sample images. Actual product may vary.

Designed to be a universal fit LTx engine harness for 2014-up L83, L86 and L8T Engines, our Stocker Series harnesses come standard with a sealed fuse box, Techflex split braided loom and heat shielding to protect areas of the harness that are typically near exhaust.

Easily add electric fans with our Sealed E-Fan Add-on Module (Includes PWM module for Fan relay control)

The CPW Stocker series harness contains all of the following connections:

  • ECM (J1 Blue, J2 Black, and J3 Gray Connections for factory GM E92 or E92A ECM)
  • TCM (Single black 66 pin connector, plugs in to factory GM T87 or T87A transmission computer)
  • Transmission (36 pin Latching connector)
  • Diagnostic Link Connector (16 pin black, intended to mount inside vehicle for ease of access)
  • Pedal (6 pin connector, wired for Corvette pedal p/n 19417903 or equivalent)
    • Easily switch to factory GM truck pedal by swapping brown and white/black wires
  • Crank Position Sensor (3 pin black, rear passenger side behind starter. For 58x Crank reluctor)
  • Starter (Single pin connector for Gen V starter solenoid)
  • Cam position/VVT (8 pin connector, front of engine at bottom of timing cover)
  • Knock sensors (2 pin plug on each side of engine)
  • MAP sensor (3 pin black plug, sensor mounts to intake in various locations depending on intake)
  • Engine coolant temperature (2 pin plug, top of water pump)
  • Mass Air Flow (8 pin plug, installed in inlet ducting. Sensor p/n 23262343 or equivalent)
  • Injector Sub-harnesses (two 12 pin plugs at rear of intake, one on each injector bank)
  • Coils (4 pin connectors, 4 connections on each side of engine, 8 total)
  • Throttle Body (6 pin flat plug)
  • Oil Pressure (3 pin flat plug, front of engine under throttle body)
  • Cylinder Shutoff (DOD/AFM) (5 pin connector, front of engine under throttle body)
  • Oxygen Sensors (4 pin flat plug. Routed out back side of engine. Use GM p/n 12659516 or equivalent)
  • Alternator (2 pin plug, Connects to stock GM Gen L83/L86 Alternator)
  • 2014-2016 Fuel rail pressure sensor connector (4 pin near rear Driver’s side of intake, only used for 2014-2016 engines)
  • A/C Pressure (3 pin plug, rear Passenger side of harness. For idle adjustment and e-fan control functions)

Bare input and output wires

Additional information

Weight 10 lbs
Dimensions 11 × 11 × 8 in
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