Description
BMW E30 M21 to M57 Coding Plug Board for 6000 RPM Tachometer
A replacement coding plug board for BMW E30 diesel conversion projects using M21 to M57 engine configurations.
Key Features
- Designed for 6000 RPM tachometer scale applications.
- Supports diesel engine conversion instrument cluster calibration.
- Useful for custom E30 cluster and drivetrain conversion projects.
- Designed to replace the original coding plug board in compatible clusters.
Compatibility
BMW E30 instrument cluster applications using an M21 to M57 diesel conversion setup.
Notes
- Confirm tachometer scale and signal compatibility before ordering.
Lead time: 4 to 8 working days.













