Carlson 7881 Disc Brake Caliper Piston - Rear

Carlson 7881 Rear Disc Brake Caliper Piston

The Carlson 7881 disc brake caliper piston is a rear brake hydraulics component built for vehicles that rely on hydraulic pressure to clamp the brake pads against the rotor. It is a direct-fit service part for select Cadillac XTS, Buick Enclave, Chevrolet Traverse, GMC Acadia, GMC Acadia Limited, and Saturn Outlook rear brake applications.

• Disc brake caliper piston for rear brake service
• Uses brake fluid pressure to move the caliper piston during braking
• Fits 2013-2019 Cadillac XTS, rear
• Fits 2011-2017 Buick Enclave, rear
• Fits 2011-2017 Chevrolet Traverse, rear
• Fits 2017 GMC Acadia Limited, rear
• Fits 2011-2016 GMC Acadia, rear
• Fits 2008-2010 Buick Enclave, rear
• Fits 2009-2010 Chevrolet Traverse, rear
• Fits 2007-2010 GMC Acadia, rear
• Fits 2007-2010 Saturn Outlook, rear

Brake systems work as a matched assembly, and the caliper piston is a critical hydraulic part in that system. Carlson 7881 helps restore proper rear caliper operation by transferring hydraulic force into pad movement at the rotor. This part is a fitment-based replacement for rear brake service on Cadillac XTS, Buick Enclave, Chevrolet Traverse, GMC Acadia, GMC Acadia Limited, and Saturn Outlook models listed above. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Brake Issues It Can Address

• Rear brake caliper piston wear or scoring
• Brake fluid pressure loss at the caliper piston
• Poor rear pad contact with the rotor
• Uneven rear braking performance
• Brake service on a damaged or sticking rear caliper assembly

Installation Notes and Tips

Confirm the rear caliper design and vehicle fitment before installation. Inspect the caliper bore, seals, and brake fluid condition during service, and verify smooth piston movement after assembly. For 2013-2019 Cadillac XTS rear applications, Carlson notes compatibility with D883 Disc Brake Caliper Pin Boot Kit. For 2011-2017 Buick Enclave and 2011-2017 Chevrolet Traverse rear applications, Carlson notes Disc Brake Caliper Repair Kit D1507. For 2008-2010 Buick Enclave, 2009-2010 Chevrolet Traverse, 2007-2010 GMC Acadia, and 2007-2010 Saturn Outlook rear applications, Carlson notes D883-related pin boot kit compatibility.

Quality Assurance

Carlson brake hydraulics parts are built for service replacement in applications where precise hydraulic operation matters. Part number 7881 is listed for specific rear brake fitments to support accurate ordering and repair planning.