3800 Standalone Harness

Base Price: $499.00

Got a buggy? How about a 3800? If not, get one! Everybody knows the 3800 for its durability, power, and reliability in the GM cars. It goes even better in a buggy, rail, or 4×4. We custom make each harness and engine run it on an engine before it ships. 3 wires (that are provided) and your running. Our weatherproof fuse and relay box that is built onto the harness can be mounted anywhere. Let us know if you have any fitment questions or if we can customize a setup for your project!

Current Lead Time: 1-2 Weeks

  • Options

  • This sub harness comes on the engine and runs from the ICM to the Crank and Cam position sensors. YOU NEED THIS TO RUN CORRECTLY IF YOUR ENGINE DID NOT COME WITH IT.
    This order is subject to all Terms and Conditions found at swapspecialties.com/sale-terms.
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Our 3800 Standalone Harness for Gm Series II engines include the following and can be customized to just about anything you need it to be:

  • Fuel pump control(fused and relay included)
  • Fan controls (2) (fuse and relays included)
  • Check Engine Light, OBD2, and Tachometer output
  • Fuel Injectors
  • Coil Pack Module (ICM) Control
  • Boost control solenoid (Supercharged applications)
  • Oxygen Sensor
  • Throttle body (IAC and TPS)
  • Mass Airflow and Intake Air Temp sensor
  • MAP
  • Alternator controls

Please let us know if you have any questions, we would love to hear about your project and help in any way we can!