Brake Caliper Adapter for BMW X3/X4 Front Axle to Fit G30-31 4-Piston Calipers with F07/F01 374x36mm Brake Discs
Our brake caliper adapter allows you to mount the 4-piston brake calipers from the BMW G30-31 onto the front axle of the BMW X3/X4 series. These calipers replace the original ones using our custom adapter and work seamlessly with the 374x36mm brake discs from the BMW F07/F01.
Compatible Models (Wheel Bearing Housing OE: 31216855953 / 31216855954):
- BMW X3 (E83)
- BMW X3 (F25)
- BMW X4 (F26)
Key Benefits:
- Exceptional braking performance, especially when paired with our rear axle brake system.
- Includes a material certificate for registration approval through individual inspection, even on stock vehicles.
- Can be easily returned to the original factory setup without modification.
- No need to send in stock parts or modify the original components (no welding, milling, or drilling required).
Required Parts:
- BMW G30-31 4-piston Brembo calipers (Part Numbers: 34116891303 / 34116891304)
- BMW F07/F01 374x36mm brake discs (Left: 34116789543 / Right: 34116789544)
Additional Tips and Information:
- For better brake system ventilation, consider removing the anchor/dust plates.
- To simplify rim installation, we recommend purchasing two wheel mounting aids (link to product provided).
- Rim compatibility can vary. Use our template to check if the brake system fits under your current rims (link to template included). If it doesn’t, wheel spacers can be used (link to spacers provided).
- After installation, check if new brake lines are needed. Older lines may be too short or incompatible. For best performance, we recommend upgrading to steel braided lines. Use our custom steel braided line configurator to build and install the correct lines (link to configurator included).
- If the handbrake cable needs adjusting due to the new calipers and larger disc size, it should be routed properly. If retaining the original caliper, reroute the cable to account for the increased disc diameter and longer travel.
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