The 625inc BMW E30 K-Series Jumper Wiring Harness is designed to simplify installing a Honda K-Series engine into a late-model BMW E30 (1989 and newer).
The harness is designed to make the electrical portion of the K-Series swap as straightforward as possible. You only need to wire one standard relay so the ECU can control the radiator fan.
A stock or aftermarket 2002–2004 RSX K-Series engine harness is required.
Fitment:
- BMW E30 — 1989 and newer
- Honda K-Series engine swaps
- Stock or aftermarket K-Series engine harness
- Designed for 2002–2004 RSX engine harnesses
- One standard relay required for ECU radiator fan control
Important:
We need to know the year of your E30 to ensure you receive the correct jumper harness. Please provide your vehicle year when ordering.
For fitment questions, email 625inco@gmail.com.