If you plan on swapping in an M62, M62TU or S62 engine into your E34, our plug and play harness adapter is the easiest way to go. The harness adapter includes the OBD2 diagnostic port, electronic accelerator pedal wiring (M62TU and S62 only), and fuel pump relay wiring. Relays are provided, with the exception of the US S62 EKP module.

• Installation Instructions included
• The ABS option will be included with all harnesses (Unless specified otherwise).
• S62 Harnesses are prewired for the U.S. fuel pump relay (Timed EKP Module) unless specified otherwise.
• Sensors are not included

Special note:
The M62 (ME5.2) is often referred to as the “474” ECU which has one large ECU plug.
The M62 (ME5.2.1) will have “DME 1” listed on the casing and has 5 small ECU plugs.

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

• Model of your E34 (520, 525, 530, 535, 540 or M5).
• If you require the Secondary Air Pump wiring.

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.