Product Description
The HBS Rear E-Brake GM Caliper (NR172-NR173PCR) is a high-quality powder-coated red brake caliper designed for durability and performance. This single-piston caliper features a self-adjusting e-brake mechanism, ensuring consistent braking force and reduced maintenance. Pre-loaded with graphite metallic pads, it delivers reliable stopping power for 1979-1985 Cadillac Eldorado, Buick Riviera, and Toronado models.
Key Features:
✔ Powder-coated red finish – Resists corrosion & enhances aesthetics
✔ 10mm hose thread – Secure brake line connection
✔ Self-adjusting e-brake – Maintains optimal pad-to-rotor contact
Ideal for auto parts wholesalers, brake system distributors, and OEM replacement specialists, this caliper is a direct fit for GM, Ford, and Mopar applications. Bulk orders available for cost-effective inventory stocking.
| OE number | NR172 / NR173 |
| Product name | NR172 / NR173 GM Rear Brake Caliper
With E-Brake Option |
| Color | Red |
| Size | 10mm Hose thread |
| Application | 1979-1985 Cadillac eldorado & Buick
Riviera & Toronado |
| Pistons | Single Piston |

About HBS
Hipsen(Quzhou) Brake System Parts Co., Ltd (HBS) is a professional manufacturer of auto brake master cylinders. We produce aftermarket parts and provide custom manufacturing services.
Our products have been exported to North America, Europe…etc since 2015. We have been verified with a quality certificate of ISO9001:2015, and the ISO/TS16949 certificate is coming in 2024.
Both the finished products and the production processes have received recognition from the brands we have collaborated with For example, Cardone, Ford Otosan, Polaris, Electra Meccanica, Wildwood, Hayes, and ZongShen.
Why Choose HBS

Numerous models in stock One-year Warranty Friendly Payment Methods
Complete coverage, check in Brake Caliper Technicians follow the whole after-sales process; Safe payment methods or percentage for you
Provide solutions within three working days can be negotiated
DRIVE WITH CONFIDENCE