OE Quality
60-Day Returns

Dorman D670180 Disc Brake Caliper Repair Kit - Rear
Reliable Disc Brake Caliper Repair Kit for Buick, Cadillac, Chevrolet, Pontiac
The Dorman D670180 Disc Brake Caliper Repair Kit offers a precise solution for restoring brake caliper function on select Buick, Cadillac, Chevrolet, and Pontiac models. Designed to meet standard replacement requirements, this kit provides essential components to maintain braking performance and safety.
- Includes piston boot, piston seal, actuator boot, clip seal, and O-ring
- Compatible with Buick DTS, Cadillac DTS, Chevrolet Montana, Pontiac Terraza, and Chevrolet Uplander
- Features EPDM rubber piston seal and boot for durability and resistance to brake fluid
- Piston bore diameter of 42 mm ensures proper fit and sealing
- Black piston boot and seal for corrosion resistance and longevity
Durable EPDM Rubber Components for Effective Brake Caliper Repair
This Dorman disc brake caliper repair kit (part number D670180) includes high-quality EPDM rubber seals and boots engineered to withstand harsh brake system conditions. The piston seal and boot are both black and made from EPDM rubber, known for its excellent resistance to heat, brake fluid, and environmental contaminants. The piston boot measures 8.3 inches in length with an outside diameter of 52.3 mm and an inside diameter of 25.5 mm, designed to fit a 42 mm piston bore diameter precisely. These components help maintain a secure seal around the caliper piston, preventing fluid leaks and contamination.
Compatible Vehicle Applications and Common Repair Uses
This repair kit is compatible with several GM vehicles, including Buick DTS, Cadillac DTS, Chevrolet Montana, Pontiac Terraza, and Chevrolet Uplander models. It is intended for use in disc brake caliper maintenance and repair, addressing issues such as:
- 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 components
- General caliper rebuilds to restore braking system reliability
Installation Notes and Tips for Dorman D670180
When installing this disc brake caliper repair kit, ensure the caliper piston bore is clean and free of debris before fitting the new seals and boots. Use appropriate brake lubricant compatible with EPDM rubber to ease installation and prevent damage. Note that this kit does not include bolts, pins, or caliper grease, so these items should be sourced separately if needed. Proper installation will help maintain brake system integrity and performance.
Quality Assurance and Product Standards
The Dorman D670180 repair kit is manufactured to meet standard replacement specifications, providing reliable performance for brake caliper maintenance. The use of EPDM rubber materials ensures durability and resistance to brake fluid and environmental factors. While no specific warranty information is provided, Dorman products are generally designed to comply with OEM standards for fit and function.
| Brand | Dorman |
|---|---|
| Part Number | D670180 |
| Bolts Included | No |
| Boot Length | 8.3 |
| Caliper Grease Included | No |
| Piston Bore Diameter | 42 |
| Piston Boot Color | Black |
| Piston Seal Color | Black |
| Piston Seal Material | Epdm rubber |
| Piston Seal End 1 Outside Diameter | 1.904 |
| Piston Boot Inside Diameter | 25.5 |
| Piston Boot Material | Epdm rubber |
| Piston Boot Outside Diameter | 52.3 |
| Piston Boot Material Thickness | 0.71 |
| Bore Size | 42 mm |
| Color/Finish | Black |
| Installation Hardware Included | No |
| Item Grade | Standard replacement |
| Material | Epdm rubber |
| Package Contents | 1 piston boot; 1 seal; 1 actuator boot; 1 clip seal; 1 o ring; 1 |
| Pin Included | No |
This part fits 21 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2011 | Buick | Lucerne | Rear | |
| 2011 | Cadillac | DTS | Rear | w/RPO Code JL9 (Power Brakes, 4 Wheel Disc, w/ABS) |
| 2010 | Buick | Lucerne | Rear | |
| 2010 | Cadillac | DTS | Rear | w/RPO Code JL9 (Power Brakes, 4 Wheel Disc, w/ABS) |
| 2009 | Buick | Lucerne | Rear | |
| 2009 | Cadillac | DTS | Rear | w/RPO Code JL9 (Power Brakes, 4 Wheel Disc, w/ABS) |
| 2008 | Buick | Lucerne | Rear | |
| 2008 | Cadillac | DTS | Rear | w/RPO Code JL9 (Power Brakes, 4 Wheel Disc, w/ABS) |
| 2008 | Chevrolet | Uplander | Rear | |
| 2007 | Buick | Lucerne | Rear | |
| 2007 | Buick | Terraza | Rear | |
| 2007 | Cadillac | DTS | Rear | w/RPO Code JL9 (Power Brakes, 4 Wheel Disc, w/ABS) |
| 2007 | Chevrolet | Uplander | Rear | |
| 2006 | Buick | Lucerne | Rear | |
| 2006 | Buick | Terraza | Rear | |
| 2006 | Cadillac | DTS | Rear | w/RPO Code JL9 (Power Brakes, 4 Wheel Disc, w/ABS) |
| 2006 | Chevrolet | Uplander | Rear | |
| 2006 | Pontiac | Montana | Rear | |
| 2005 | Buick | Terraza | Rear | |
| 2005 | Chevrolet | Uplander | Rear | |
| 2005 | Pontiac | Montana | Rear |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.