Wagner Brake Z933 Parking Brake Shoe - Rear

Wagner Z933 Parking Brake Shoe for Rear Applications

The Wagner Z933 parking brake shoe is built for rear drum parking brake service with OE-matched friction materials and precision-ground surfaces for consistent contact with the drum. It is a direct-fit option for select Cadillac, Buick, Chevrolet, GMC, and Saturn vehicles that use an 8.650-inch brake drum diameter.

Key Features

• OE-matched friction material for steady parking brake performance
• Precision-ground construction to improve friction-to-drum contact
• Brake drum diameter: 8.650 inches
• Brake shoe width: 0.980 inches
• Primary brake shoe friction material thickness: 0.175 inches
• FMSI number 1628-S933 for identification and cross-reference

Product Details

Wagner Brake Z933 is a rear parking brake shoe engineered for vehicles that rely on a drum-style parking brake assembly. The shoe uses friction material matched to OE-style performance targets and ground surfaces that help maintain even contact inside the drum. This supports predictable parking brake engagement on applications such as the Cadillac XTS, Buick Enclave, Chevrolet Traverse, GMC Acadia, GMC Acadia Limited, and Saturn Outlook. Wagner’s brake shoe line focuses on fit, friction consistency, and drum contact accuracy for service work that demands a clean replacement part.

This part cross-references 933SG and BX933 for the same application. The Wagner Z933 part number is also identified by FMSI 1628-S933, which helps confirm the correct parking brake shoe for the listed rear applications.

Vehicle Fitment

• Fits 2013-2019 Cadillac XTS, Rear
• Fits 2008-2017 Buick Enclave, Rear
• Fits 2009-2017 Chevrolet Traverse, Rear
• Fits 2007-2017 GMC Acadia, Rear
• Fits 2017 GMC Acadia Limited, Rear
• Fits 2007-2010 Saturn Outlook, Rear

Installation Notes and Tips

Confirm the brake drum diameter, shoe width, and FMSI match before installation. Inspect the drum surface for scoring, taper, or heat damage, since worn drums can reduce parking brake contact quality. Clean the backing plate contact points and verify proper shoe seating during assembly. Always compare the removed part to the Wagner Z933 and confirm rear parking brake application before service.

Quality Assurance

Wagner Brake uses OE-matched friction materials and precision-ground components to support consistent brake shoe performance and drum contact. The Z933 is built to meet the dimensional and material requirements listed for the confirmed rear fitments.