Rancho RS5000X Rear Shock for 2011-2026 Dodge Durango and Jeep Grand Cherokee (RS55399)

Fits select 2011-2026 Dodge Durango and 2011-2022 Jeep Grand Cherokee (including Grand Cherokee WK).

The Rancho RS5000X series gas shock is engineered for drivers who demand better control on-road and reliable performance off-road. Using exclusive Cross Tuned technology, this twin-tube shock features a unique rebound and compression valving system that adapts to changing terrain. The heart of the RS5000X is Rancho's Progressive Engagement Valving, which is custom-tuned to minimize initial impacts at low speeds and reduce rough ride characteristics on your Durango or Grand Cherokee.

• Durability: Features a 16mm nitro-carburized piston rod for superior scuff and corrosion resistance, plus double-welded loops at high-stress areas.
• Heat Management: The large twin-tube body is filled with all-weather fluid to maintain internal temperatures between -40 and 248°F for consistent operation in extreme conditions.
• Consistent Damping: Pressurized with nitrogen gas to 150 PSI to minimize oil foaming and reduce performance fade during spirited driving.
• Smooth Performance: A 35mm sintered iron piston and fluon-banded seal provide a smooth stroke, while a polyurethane rebound bumper absorbs harsh impacts.
• Protection: Includes a polyvinyl protective boot to shield the rod and self-lubricating seal from debris.

Manufacturer Part Number: RS55399. Supported by Rancho’s Limited Lifetime Warranty.