BMW E39 Sedan Dual Caliper Adapter Kit – Bolt-On Setup

Upgrade your BMW E39 Sedan with a professional Dual Caliper Adapter Kit, designed for installing an additional brake caliper dedicated to a hydraulic handbrake system. This solution is ideal for drift builds and performance projects requiring precise and independent rear braking control.

The kit is compatible not only with BMW E39 Sedan models, but also with custom builds using an E39 rear subframe swapped into another chassis.

This complete set includes two adapters (left and right side), allowing proper mounting of an additional rear brake caliper without interfering with the factory braking system.

The design enables a fully functional hydraulic handbrake setup using a separate caliper, improving control during drifting and aggressive driving.

Installation is fully bolt-on and does not require welding. The adapters mount directly to the trailing arm using the included hardware. For proper fitment, minor preparation is required:

Light grinding of the knuckle and handbrake cable mounting area
Temporary removal of one control arm during installation (reinstalled afterward)
Use of thread locker for secure mounting

The ABS sensor remains fully functional and does not need to be removed or modified.

Additional Information – Caliper Selection

To ensure correct fitment and performance, the additional brake caliper must match the engine version of your vehicle:

• If you have a 520 model, use a caliper and carrier from a 520

• If you have a 540 model, use a caliper and carrier from a 540

• Always match the caliper and bracket to your specific model variant

Why Choose This BMW E39 Dual Caliper Adapter Kit?

This solution is perfect for drift cars and performance builds where a hydraulic handbrake is essential. It allows independent rear braking without compromising the original system, while maintaining a clean, bolt-on installation.

Product Specifications:

Type: Dual Caliper Adapter Kit (Hydraulic Handbrake Setup)
Fitment: BMW E39 Sedan / E39 rear subframe swaps
Sides: Left + Right included
Installation: Bolt-on (no welding required)
Compatibility: Works with ABS sensor
Requirements: Minor grinding + temporary control arm removal
Included: Complete mounting hardware (bolts)
Function: Enables installation of additional brake caliper

Take full control of your drift setup with a reliable and easy-to-install dual caliper solution for the BMW E39 platform.