Rancho RS55187 Shock Absorber - Rear

Overview of Rancho RS55187 Suspension Shock Absorber

The Rancho RS55187 suspension shock absorber is engineered specifically for Toyota 4Runner models, providing reliable damping performance. Designed to enhance ride quality and vehicle control, this shock absorber integrates key features tailored for off-road and on-road conditions.

• Compatible with Toyota 4Runner
• Part number RS55187 for precise identification
• Includes dust shield for extended durability
• Extended bumper stop included for improved suspension travel
• Loop bushing lower mount and stem mount upper design
• Travel length of 7.47 inches for effective shock absorption
• Reserve tube diameter of 2.251 inches for enhanced fluid capacity

Detailed Features and Specifications

The RS55187 shock absorber from Rancho’s RS5000X line features a compressed length of 12.34 inches and an extended length of 19.81 inches, accommodating the suspension travel requirements of the Toyota 4Runner. The lower mounting uses a loop bushing mount with a 3/4 inch bushing inner diameter and 1.9/16 inch overall length, while the upper mounting is a stem mount with a 2.3/8 inch stem length and 3/8-16 thread pitch. This shock absorber includes a dust shield to protect internal components from debris and an extended bumper stop to prevent damage during full compression. The extended hydraulic lockout is not included in this model.

About the Rancho RS5000X Product Line

The RS5000X series by Rancho is designed to provide a balance between performance and durability for trucks and SUVs. This product line focuses on delivering consistent damping with features like reserve tube construction and protective dust shields. The RS55187 shock absorber fits within this line by offering tailored fitment and robust mounting options suitable for the Toyota 4Runner’s suspension system.

Applications and Problem Solving

• Improves ride comfort and handling on rough terrain
• Reduces suspension bottoming and harsh impacts
• Protects suspension components from premature wear
• Maintains vehicle stability during off-road driving
• Replaces worn or damaged shocks for restored performance

Installation Notes and Tips

When installing the Rancho RS55187 shock absorber, ensure compatibility with your Toyota 4Runner model year and suspension setup. The loop bushing lower mount and stem mount upper require proper alignment and torque specifications. It is recommended to inspect mounting hardware and bushings for wear and replace if necessary. The included parts pack P01134 contains essential components for installation.

Quality Assurance and Warranty

Rancho RS55187 shock absorbers are manufactured to meet OEM standards for fit and function. The inclusion of a dust shield and extended bumper stop contributes to product longevity. While specific warranty details are not provided here, Rancho typically offers limited warranties covering defects in materials and workmanship. Consult Rancho or authorized distributors for exact warranty terms.