Skip to content

E34 M52TU, M54, S54 Swap Wiring Harness Adapter

Original price $498.00 - Original price $498.00
Original price $498.00
$473.10
$473.10 - $473.10
Current price $473.10

If you plan on swapping in an M52TU, M54 or S54 engine into your e34, our plug and play harness adapters are the easiest way to go. Harnesses include the OBD2 diagnostic port, electronic accelerator pedal wiring, and fuel pump relay wiring. Relays are provided, with the exception of the US S54 EKP module.

  • Installation Instructions included
  • S54 Harnesses are pre-wired for the U.S. fuel pump relay (Timed EKP Module) unless specified otherwise.
  • Sensors are not included
* Please leave the following info in the notes section when placing an order:
  • If you require the Secondary Air Pump wiring.
  • If you have a right-hand-drive chassis

Harness adapters will ship 2-3 days after your order is placed. All adapters are made to order. Because of this, neither returns nor exchanges are accepted.  All sales are final.