Frenkit 746300 Disc Brake Caliper Repair Kit - Rear

Brand Frenkit 746300
Position Rear
Brake System Ate(teves)
Caliper Piston Diameter 46mm
Fits BMW · 5 vehicles

Caliper repair kit. Restores disc brake caliper function with service parts for maintenance.

ATE(Teves) brake system. Built for compatibility with this brake system design.

Includes a 46mm caliper piston diameter for the correct rebuild fit.

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Rear Brake Caliper Repair Kit for BMW

Restore proper rear brake caliper function with the Frenkit 746300 disc brake caliper repair kit. Built for ATE (Teves) brake systems with a 46mm caliper piston diameter, this kit is a direct-service solution for select BMW rear calipers.

Compatible With 2005-2006 BMW M3 rear and 2006-2008 BMW Z4 rear, including applications with brake caliper OE No. 34212282857 and 34212282858. The Frenkit 746300 is a focused repair kit for maintaining caliper sealing and piston operation on the specified rear brake setup.

Key Features

  • Disc brake caliper repair kit for rear brake service
  • Designed for ATE (Teves) brake systems
  • Caliper piston diameter: 46mm
  • Fits 2005-2006 BMW M3, rear
  • Fits 2006-2008 BMW Z4, rear
  • Part number: 746300

Detailed Description

The Frenkit 746300 is intended for rear caliper refurbishment on BMW models equipped with the ATE (Teves) brake system and a 46mm piston. It supports service work on the rear caliper assembly for the BMW M3 and BMW Z4 applications listed above, making it a practical choice when addressing wear in the caliper’s internal sealing components. This part number, 746300, is referenced for the specified OE caliper numbers and rear-position fitment.

This part cross-references OE brake caliper applications for the same setup, including 34212282857 and 34212282858.

What It Helps Fix

  • Brake fluid seepage at the rear caliper
  • Sticking or uneven caliper piston movement
  • Loss of hydraulic sealing in the caliper assembly
  • Brake drag caused by worn internal caliper components
  • Reduced rear brake performance from caliper wear

Installation Notes and Tips

Confirm the brake system is ATE (Teves) and verify the caliper piston diameter is 46mm before ordering. Match the OE caliper number on the vehicle to 34212282857 or 34212282858 for correct application. Clean the caliper thoroughly during service and inspect the piston, bore, and sliding surfaces for wear before reassembly.

Quality Assurance

Frenkit supplies brake service components for caliper repair applications, and this kit is specified for the listed BMW rear brake configurations.

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2008BMWZ43.2LL6Rearwith Brake Caliper OE No. 34212282857, 34212282858
2007BMWZ43.2LL6Rearwith Brake Caliper OE No. 34212282857, 34212282858
2006BMWM33.2LL6Rearwith Brake Caliper OE No. 34212282857, 34212282858
2006BMWZ43.2LL6Rearwith Brake Caliper OE No. 34212282857, 34212282858
2005BMWM33.2LL6Rearwith Brake Caliper OE No. 34212282857, 34212282858