R1 Concepts 2551-0667-00 Disc Brake Pad Set - Rear

Rear Brake Pads for Explorer and Mountaineer

R1 Concepts R1 Optimum OE Pads part number 2551-0667-00 are rear disc brake pads for select Ford and Mercury SUVs. This OE-style brake pad set is built for 1995-2001 Ford Explorer, 2001-2002 Ford Explorer Sport with rear calipers and steel pistons, and 1997-2001 Mercury Mountaineer applications.

Key Features

• Disc brake pad set for rear axle applications
• OE-style fitment for Ford Explorer, Ford Explorer Sport, and Mercury Mountaineer
• Application-specific coverage for rear calipers with steel pistons on 2001-2002 Explorer Sport
• R1 Optimum OE Pads product line from R1 Concepts
• Part number 2551-0667-00 for accurate ordering and fitment lookup

Product Details

The R1 Optimum OE Pads line focuses on direct-replacement brake pad applications for everyday service needs. This rear brake pad set is cataloged for Ford Explorer rear brake service across 1995-2001 model years, Ford Explorer Sport rear brake service for 2001-2002 models with rear calipers and steel pistons, and Mercury Mountaineer rear brake service for 1997-2001 models. If you are replacing worn rear pads on a Ford Explorer or Mercury Mountaineer, 2551-0667-00 provides the correct cataloged application reference.

Common Brake Issues Addressed

• Squealing or noisy rear brake pads
• Reduced rear braking performance
• Brake pad wear that triggers service replacement
• Uneven rear brake response during normal driving
• Need for a direct-fit rear pad set for listed Ford and Mercury SUVs

Installation Notes

Verify rear caliper configuration before ordering, especially on 2001-2002 Ford Explorer Sport models with steel pistons. Confirm rotor condition, caliper operation, and pad wear pattern during service. Part number 2551-0667-00 should be matched to the vehicle year, make, model, and rear position listed above.

Quality Assurance

R1 Concepts identifies this as part of the R1 Optimum OE Pads line, an OE-style brake pad family for cataloged replacement use. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.