PRT Performance Ride 173961 Suspension Shock Absorber - Rear

Rear Shock Absorber for Toyota and Lexus

PRT Performance Ride 173961 is a rear suspension shock absorber built for select Toyota and Lexus applications. It uses a gas-charged design with loop-to-loop mounting and a metal dust shield for added protection in everyday driving conditions.

Compatible with rear suspension service on the Toyota Sienna, Toyota Highlander, Lexus RX350, Lexus RX350L, Lexus RX450h, and Lexus RX450hL, this PRT Shock Absorber line part number 173961 is specified for direct replacement use on the listed vehicles.

Key Features

• PRT Performance Ride PRT Shock Absorber, part number 173961
• Rear suspension shock absorber
• Gas charged construction
• Loop upper mount and loop lower mount
• Metal dust shield included
• Compressed length: 12.24 in.
• Extended length: 18.98 in.
• Shock stroke / travel length: 6.73 in.
• Body diameter: 1.77 in.
• Boot not included
• Coil over springs not included
• Non-adjustable design

Product Details

PRT Performance Ride 173961 is a rear shock absorber engineered with a center-of-the-loop measuring point at both the rod end and body end. The gas-charged internal design supports consistent damping response, while the metal dust shield helps protect the shaft area from road debris. This rear shock absorber is a fitment-based replacement for 2023-2025 Toyota Sienna rear, 2021-2022 Toyota Sienna rear, 2014-2022 Toyota Highlander rear, 2010-2019 Lexus RX350 rear, 2018-2022 Lexus RX350L rear, 2016-2022 Lexus RX450h rear, 2010-2014 Lexus RX450h rear, and 2018-2022 Lexus RX450hL rear. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Uses

• Rear shock replacement for worn suspension on Toyota Sienna
• Rear suspension service on Toyota Highlander models
• Rear damping repair for Lexus RX350 and RX350L
• Rear shock replacement for Lexus RX450h and RX450hL
• Restoring ride control after leaking or weak rear shocks

Installation Notes

Verify rear fitment by year, make, and model before installation. Confirm loop mount orientation, compressed length, and extended length against the original shock absorber to ensure proper suspension travel. Inspect related rear suspension components, including bushings and mounting points, during replacement. This part is non-adjustable and does not include coil over springs or a boot.

Quality Assurance

PRT Performance Ride suspension components are built for direct-fit replacement applications listed in the fitment data. Part number 173961 is specified for rear use on the covered Toyota and Lexus vehicles, including Toyota Sienna, Toyota Highlander, Lexus RX350, Lexus RX350L, Lexus RX450h, and Lexus RX450hL.