E30 M50, S50, M52, S52 Swap Wiring Harness Adapter


If you plan on swapping in a 24 valve engine into your e30, our plug and play harness adapters are the easiest way to go. 

  • 8" long from C101 to X20 connector
  • Installation Instructions included
  • Extra wire for MPG
  • Extra wire for Tachometer signal
  • Extra wire for Vehicle Speed Signal (for 84-87 models with extra C104 connector in the glovebox.)
  • Sensors are not included
  • E34 Oil level sensor connector
  • A/C input wiring
  • Extra wire for the ABS power (90+ models)
  • Oil temperature connector (E30 M3)

* Please leave the following info in the notes section when placing an order:

  • Model of your e30 (325, 325E, 318IS. 325IX or M3). 
  • Whether or not you require a C104 Connector.
  • If you are using a Z3 harness.

All adapters are made to order. Because of this, neither returns nor exchanges are accepted. All sales are final.

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