Dorman D670172 Disc Brake Caliper Repair Kit - Front

Reliable Disc Brake Caliper Repair Kit for Precise Maintenance

The Dorman D670172 Disc Brake Caliper Repair Kit offers essential components for restoring brake caliper function on select vehicles. Designed with durable EPDM rubber seals and boots, this kit supports effective brake system repairs for models requiring a 74.63 mm piston bore diameter.

• Includes 1 piston boot and 1 piston seal made from EPDM rubber
• Boot length of 11.6 inches with a 78.55 mm outside diameter
• Black piston boot and seal for corrosion resistance and durability
• Fits calipers with a 74.63 mm piston bore diameter
• Standard replacement grade material for reliable service

Durable EPDM Rubber Components for Brake Caliper Repair

This Dorman disc brake caliper repair kit features high-quality EPDM rubber piston boots and seals engineered to withstand heat, moisture, and brake fluid exposure. The piston boot has an inside diameter of 50.5 mm and a thickness of 0.7 mm, ensuring a secure fit and protection against contaminants. The piston seal’s outside diameter measures 2.761 inches, matching the caliper bore size of 74.63 mm for precise sealing performance. The black finish on both components helps resist wear and environmental damage, making this kit suitable for professional brake maintenance on compatible vehicles.

Compatible Vehicles and Part Number Details

The Dorman D670172 repair kit is designed for disc brake calipers requiring a 74.63 mm piston bore diameter. While specific vehicle makes and models are not listed, this kit is commonly used in brake caliper repairs for various domestic and import vehicles that match these specifications. When searching for a disc brake caliper repair kit for your vehicle, referencing the Dorman part number D670172 ensures compatibility with the correct piston size and seal materials.

Common Brake Issues Addressed by This Repair Kit

• Leaking or damaged piston seals causing brake fluid loss
• Worn or torn piston boots allowing dirt and moisture ingress
• Reduced caliper piston movement due to seal degradation
• Brake drag or uneven pad wear from compromised caliper seals
• Corrosion damage inside the caliper bore affecting piston operation

Installation Notes and Tips for Optimal Performance

Before installation, thoroughly clean the caliper bore and piston to remove debris and corrosion. Inspect the caliper for damage that may require replacement beyond seal repair. This kit does not include bolts, pins, or caliper grease, so ensure you have the necessary hardware and lubricant on hand. Carefully install the EPDM rubber piston boot and seal to maintain proper sealing and piston movement. Follow vehicle-specific service manual instructions for torque specifications and brake system bleeding procedures.

Quality Assurance and Warranty Information

Dorman provides this disc brake caliper repair kit as a standard replacement part manufactured to meet OEM specifications. The EPDM rubber materials are selected for durability and resistance to brake system fluids. While installation hardware and grease are not included, the kit components are designed for reliable service life when installed correctly. Please refer to Dorman’s warranty policy for coverage details on this part number D670172.