Dorman D670189 Disc Brake Caliper Repair Kit - Front

Disc Brake Caliper Repair Kit for Front Service

Dorman D670189 is a disc brake caliper repair kit built to replace the original sealing components needed to restore caliper operation on select Pontiac vehicles. It includes the piston boot and seal required for front brake service, with EPDM rubber construction for dependable sealing and durability.

Compatible with 2006 Pontiac Montana front, 1990-1999 Pontiac Trans Sport front, and 1976-1980 Pontiac Sunbird front, this kit is a standard replacement for calipers with a 2.495 in bore size. Dorman D670189 is also cross-referenced to Carlson 41071 and Centric Parts 143.67015 for the same application.

Key Features

• Disc brake caliper repair kit for front brake service
• Includes 1 piston boot and 1 seal
• EPDM rubber piston boot and seal for brake fluid resistance
• Black finish with black boot and seal components
• Standard replacement design for specified Pontiac applications
• Built for calipers with a 2.495 in bore diameter
• Dorman D670189 part number for easy identification

Detailed Description

This Dorman disc brake caliper repair kit is designed to match the original sealing components used in the caliper assembly, helping restore proper brake function after wear, cracking, or seal failure. The kit uses EPDM rubber for both the piston boot and piston seal, with a black finish and dimensions matched to the specified bore size. For front brake service on Pontiac Montana, Pontiac Trans Sport, and Pontiac Sunbird applications, Dorman D670189 provides the core components needed to rebuild the caliper sealing area without replacing the full caliper assembly.

Common Repair Uses

• Leaking caliper piston seal
• Torn or hardened piston boot
• Brake drag caused by damaged caliper sealing components
• Moisture intrusion around the piston area
• Uneven front brake performance from worn caliper seals

Installation Notes and Tips

Confirm the caliper bore diameter is 2.495 in before ordering. This kit does not include bolts, pins, or caliper grease, and installation hardware is not included. Clean the caliper bore thoroughly before assembly, inspect the piston surface for scoring, and replace any damaged hydraulic components during service. Verify fitment by vehicle, year, and front position before installation.

Quality Assurance

Dorman manufactures this repair kit as a standard replacement part using quality components selected for reliable performance and durability. The kit is built to restore proper caliper operation on the listed Pontiac applications, including 2006 Pontiac Montana front, 1990-1999 Pontiac Trans Sport front, and 1976-1980 Pontiac Sunbird front.