Nugeon 97P17859B Disc Brake Caliper - Rear Left

Rear Left Disc Brake Caliper for Ford and Mercury

Nugeon TechShield 360 (tm) part 97P17859B is a remanufactured rear left disc brake caliper built for specific Ford and Mercury applications. It is a direct-fit brake hydraulic component for the rear left position on select Ranger, Explorer, Explorer Sport, Explorer Sport Trac, and Mountaineer models.

The TechShield 360 (tm) line focuses on corrosion-resistant protection and service-ready brake hardware details. This caliper features a grey cast iron housing with a rust preventative finish, a steel piston, a dust boot, and an included bleeder screw for service convenience.

Key Features

• Remanufactured disc brake caliper for the rear left position
• Grey cast iron housing with rust preventative finish
• Steel piston with 2 in. (48 mm) outside diameter
• Bleeder screw included, 3/8-24 thread
• Banjo bolt inlet fitting with 3/8-24 inlet thread size
• Dust boots included for added protection
• Brake pad installation hardware included where applicable
• Housing cast numbers: 025, 477

Product Details

Part number 97P17859B is engineered as a remanufactured rear left disc brake caliper for Ford Ranger, Ford Explorer, Ford Explorer Sport, Ford Explorer Sport Trac, and Mercury Mountaineer applications. The TechShield 360 (tm) product line adds a rust preventative finish to help maintain the caliper housing, while the cast iron body and steel piston provide the core hydraulic structure needed for consistent brake operation.

This caliper uses a banjo bolt inlet fitting and includes the bleeder screw. Anti-squeal shims, pads, bracket, bracket mounting bolts, and wear sensors are not included. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Brake Issues Addressed

• Rear brake caliper leakage at the piston or bleeder area
• Uneven rear braking caused by a sticking caliper
• Corrosion-related caliper seizure on older Ford and Mercury vehicles
• Soft or inconsistent brake pedal feel from a worn hydraulic caliper
• Brake drag or pad wear concerns at the rear left wheel

Installation Notes and Tips

Verify rear left fitment before installation and confirm the banjo bolt connection, inlet thread size, and bleeder screw thread match the vehicle’s brake line setup. Transfer or replace pads and related brake hardware as needed, since pads, bracket, and bracket bolts are not included. After installation, bleed the brake system thoroughly and inspect for leaks at the inlet fitting and bleeder screw.

• Fits 1998-2004 Ford Ranger, rear left
• Fits 2001-2002 Ford Explorer Sport, rear left
• Fits 2001-2002 Ford Explorer Sport Trac, rear left
• Fits 1995-2001 Ford Explorer, rear left
• Fits 1997-2001 Mercury Mountaineer, rear left

Quality Assurance

Nugeon TechShield 360 (tm) remanufactured brake components are built for service replacement use with attention to fitment, corrosion protection, and brake-system compatibility. Part 97P17859B is prepared as a remanufactured hydraulic caliper for the listed rear left applications.