E21 M20/M30/M42/S38 Wiring Harness Adapter


Are you planning on swapping an M20, M30, M42 or S38 engine into your e21? If so, these E21 engine swap harnesses are intended to make your engine swap a much easier process. They include the square E21 connector & round C101 connector. Instructions are included. With this simple plug-and-play adapter, you won’t have to deal with any wiring headaches. These adapters do not come with any sensors. If you have any special requests, feel free to contact us.
  • Installation Instructions included
  • Sensors are not included

    * This is a special order item, please allow 2-3 weeks for assembly. All adapters are made to order. Because of this, neither returns nor exchanges are accepted.  All sales are final.

    You might also like