Frenkit 748358 Disc Brake Caliper Repair Kit - Rear

Rear Brake Caliper Repair Kit for Jeep and Dodge

Frenkit 748358 is a disc brake caliper repair kit for TRW brake systems with a 48mm caliper piston diameter. It is built for rear brake service on select Jeep Wrangler, Jeep Wrangler JK, Jeep Liberty, and Dodge Nitro applications that use OE caliper numbers 68003774AA or 68003778AA.

Key Features

• Disc brake caliper repair kit for rear brake service
• Brake system: TRW
• Caliper piston diameter: 48mm
• Application-specific fitment for select Jeep and Dodge rear calipers
• Part number: 748358

Application Details

Compatible with rear brake caliper service on 2007-2017 Jeep Wrangler, 2018 Jeep Wrangler JK, 2008-2012 Jeep Liberty, and 2007-2011 Dodge Nitro when equipped with brake caliper OE No. 68003774AA or 68003778AA. Frenkit 748358 is the correct service kit format for owners and technicians replacing worn caliper sealing components on TRW rear calipers with a 48mm piston.

What It Helps Address

• Brake fluid seepage at the rear caliper
• Sticking or uneven caliper piston movement
• Loss of hydraulic pressure at the caliper
• Brake drag caused by worn internal seals
• Service needs on rear calipers with OE No. 68003774AA or 68003778AA

Installation Notes

Verify the brake system is TRW and confirm the caliper piston diameter is 48mm before installation. Match the OE caliper number on the vehicle to 68003774AA or 68003778AA to confirm application. Clean all sealing surfaces thoroughly and inspect the caliper bore, piston, and slide components for wear before reassembly. Part number 748358 should be matched to the rear caliper application listed above.

Quality Assurance

Frenkit manufactures brake service components for caliper repair applications, with fitment defined by brake system and piston size. This part cross-references no additional part numbers in the provided data.