Frenkit 744257 Disc Brake Caliper Repair Kit - Rear

Rear Brake Caliper Repair Kit for BMW 528i and 535i

Restore rear brake caliper function with the Frenkit 744257 disc brake caliper repair kit. This kit is built for TRW brake systems and includes components sized for a 44mm caliper piston, making it a direct service solution for select BMW rear calipers.

Compatible with rear brake service on BMW 528i, 528i xDrive, 535i, 535i xDrive, 535d, 535d xDrive, and ActiveHybrid 5 applications that use the specified OE caliper numbers. The Frenkit 744257 is a practical choice when the caliper needs rebuilding rather than full replacement.

Key Features

• Disc brake caliper repair kit for rear brake service
• Built for TRW brake system applications
• 44mm caliper piston diameter
• Fits BMW rear calipers with OE No. 34216793041 or 34216793042
• Frenkit 744257 part number for accurate ordering and lookup

Detailed Description

The Frenkit 744257 repair kit is specified for rear caliper service on BMW models using TRW brake hardware and a 44mm piston. It supports maintenance on 2010-2016 BMW 528i, 2012-2016 BMW 528i xDrive, 2010 BMW 528i xDrive, 2014-2016 BMW 535d, 2014-2016 BMW 535d xDrive, 2010-2016 BMW 535i, 2009-2016 BMW 535i xDrive, and 2012-2016 BMW ActiveHybrid 5, all in the rear position with the listed OE caliper numbers. If you are searching for a rear brake caliper repair kit for BMW 528i or BMW 535i applications, part number 744257 helps narrow the match quickly.

This part cross-references OE caliper numbers 34216793041 and 34216793042 for the same application.

What It Helps Address

• Brake fluid seepage at the rear caliper
• Sticking or uneven caliper piston movement
• Loss of braking consistency from worn internal seals
• Rear brake service needs on TRW-equipped BMW calipers
• Rebuild needs for calipers identified by OE No. 34216793041 or 34216793042

Installation Notes and Tips

Confirm the brake system is TRW and verify the rear caliper OE number before ordering. Match the 44mm piston diameter to the existing caliper specification, and inspect the caliper bore, piston surface, and brake hose condition during service. Clean all sealing surfaces thoroughly before reassembly and bleed the brake system after installation.

Quality Assurance

Frenkit is a brake service parts brand focused on caliper repair components. Use the OE caliper number, brake system type, and piston diameter to confirm the correct application before installation.