E30 M52TU, M54, S54 Swap Wiring Harness Adapter

If you plan on swapping in an M52TU, M54 or S54 engine into your e30, 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
• 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.)
• The oil level sensor and ABS options will be included with all harnesses (Unless specified otherwise).
• The oil temperature sensor option will be included with the harness for the M3 chassis.
• S54 Harnesses are prewired 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:

• Model of your e30 (325/325E, 325I/IS, 318I/IS, 325IX or M3).
• If you require the Secondary Air Pump wiring.
• If you are using a Z3 or Z3M engine harness.

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