Rancho RS55331 RS5000X Front Shock for 2007-2018 Jeep Wrangler JK 4in Lift

Vehicle Fitment

• 2007-2018 Jeep Wrangler JK (Front, for ~4" Lift Compatibility)

Features

• RS5000X Series gas-charged front shock for lifted Jeep Wrangler JK models
• Cross-Tuned rebound valving and advanced compression phase for balanced performance
• Progressive Engagement Valving to reduce rough ride impacts
• 16 mm nitro-carburized piston rod for corrosion resistance and durability
• Full-displaced 35 mm bore for consistent damping response
• Large twin-tube body with all-weather fluid for stable performance in extreme conditions
• Protective dust boot and rubber bushings to safeguard components
• Rancho limited lifetime warranty for coverage against defects

Specifications

• Position: Front shock absorber
• Design: Twin-tube gas charged shock
• Compressed Length: ~15.97 in (406 mm)
• Extended Length: ~27.15-27.26 in (689-693 mm)
• Travel (Stroke): ~11.07-11.29 in (281-287 mm)
• Upper Mount: Stem mount (S5) with 1/2"-13 thread
• Lower Mount: Loop bushing & sleeve mount (LS38)
• Color: White body with red dust boot

Included Components

• 1x Rancho RS55331 RS5000X front shock absorber
• 1x Protective red dust boot
• 1x Set of mounting bushings and sleeves

Product Description

The Rancho RS55331 is an RS5000X Series front shock absorber engineered for lifted Jeep Wrangler JK applications, especially around a ~4" front lift. Designed to improve both on-road comfort and off-road control, this gas-charged shock employs Rancho's Cross-Tuned rebound valving and advanced compression tuning to deliver smoother, more controlled damping through suspension travel. Progressive Engagement Valving helps soften initial impacts at lower speeds, reducing harshness over bumps and rough terrain.

Built for durability, the RS55331 features a nitro-carburized piston rod and a full-displaced bore, with double-welded loops and protective boot to guard against corrosion and debris. Its larger twin-tube body and all-weather fluid ensure consistent performance in extreme temperatures. Sold individually for front installation, this shock is a direct-fit performance replacement to enhance ride quality and handling on lifted Wrangler JK models.