Rancho RS55284 RS5000X Rear Shock for 2002-2012 Jeep Liberty/07-11 Dodge Nitro

Vehicle Fitment

• 2002-2007 Jeep Liberty KJ (2WD/4WD, Sport, Renegade, Limited, Latitude, 2.4L I4)
• 2002-2007 Jeep Liberty KJ (2WD/4WD, Sport, Renegade, Limited, Latitude, 3.7L V6)
• 2005-2006 Jeep Liberty KJ (2WD/4WD, Sport, Limited, 2.8L CRD Diesel - see Fitment Notes)
• 2008-2012 Jeep Liberty KK (2WD/4WD, Sport, Limited, Renegade, Jet, Arctic, 3.7L V6)
• 2007-2011 Dodge Nitro (2WD/4WD, SXT, SLT, SE, Heat, Detonator, Shock, 3.7L V6)
• 2007-2011 Dodge Nitro R/T (2WD/4WD, 4.0L V6)

Fitment Notes

• Fits both 2WD and 4WD configurations across all listed vehicles
• Designed for factory ride height (0" rear lift) - not suitable for lifted applications
• Jeep Liberty diesel (2.8L CRD, 2005-2006) fitment should be verified prior to purchase - diesel models may use different rear shock mounting hardware; confirm against your vehicle's OEM shock specifications before ordering
• The Dodge Nitro and 2008-2012 Jeep Liberty KK share the same platform and confirmed rear shock fitment with this part number

Features

• Rancho exclusive Cross Tuned Technology pairs a patented rebound valving system with an advanced compression phase, delivering improved handling and ride control on and off road
• Progressive Engagement Valving custom-tuned for the Jeep Liberty and Dodge Nitro rear suspension - absorbs initial impacts at low speeds and progressively tightens damping as road inputs increase
• Compression Control Valve regulates fluid transfer to absorb road impacts without disc flutter, maintaining consistent shock motion control throughout the travel range
• Twin-tube, gas-pressurized design at 150 PSI minimizes air-to-oil foaming to prevent damping fade during sustained use or off-road driving
• 2-1/4" (57.2mm) diameter shock body provides increased fluid capacity for cooler operating temperatures and more consistent damping at varying speeds and terrain types
• All-weather fluid rated for internal temperatures from -40°F to 248°F, providing reliable performance across all seasons and climates
• Low-friction, self-lubricating seal retains gas and oil charge for faster rebound response and smoother compression over the shock's service life
• 16mm nitro-carburized piston rod resists scuffing and corrosion for long-term durability
• 35mm sintered iron, glass-filled Fluon banded piston delivers precise control of shock motion and enhanced responsiveness to changing road and trail conditions
• Double-welded loops at stress areas and polyurethane rebound bumper enhance structural integrity and long-term durability

Specifications

• Part Number: RS55284
• Series: RS5000X
• Position: Rear
• Lift Height: Factory (0")
• Drive Type: 2WD and 4WD
• Extended Length: 22.58" (573.5mm)
• Compressed Length: 13.99" (355.3mm)
• Travel Length: 8.59" (218.2mm)
• Shock Body Diameter: 2.25" (57.2mm)
• Piston Diameter: 35mm (Sintered Iron, Glass-Filled Fluon Banded)
• Piston Rod Diameter: 16mm (0.622") Nitro-Carburized Steel
• Gas Pressure: 150 PSI
• Top Mount: Loop/Eyelet with Sleeve (14mm Sleeve ID)
• Bottom Mount: Loop/Eyelet with Sleeve (12mm Sleeve ID)
• Boot Included: Yes (Red)
• Warranty: Rancho Limited Lifetime Warranty

Included Components

• 1x Rancho RS5000X Rear Shock Absorber (RS55284)
• 1x Protective Boot (Red)
• 1x Hardware Kit (washers, bushings, and nuts)

Product Description

The Rancho RS55284 RS5000X is a rear shock absorber engineered specifically for 2002-2012 Jeep Liberty and 2007-2011 Dodge Nitro, covering both the first-generation KJ Liberty (2002-2007) and the second-generation KK Liberty and Nitro (2008-2012 / 2007-2011), which share a common platform. Built on Rancho's patented Cross Tuned Technology, this shock integrates an exclusive rebound valving system with an advanced compression phase that works together to deliver measurably better ride quality and control compared to worn OEM dampers. The Progressive Engagement Valving is custom-tuned to the rear suspension geometry of these platforms - engaging gradually at low speeds to smooth out initial bumps, then progressively tightening its response as conditions intensify. This makes the RS55284 equally at home on daily highway driving, washboard dirt roads, or light off-road terrain.

The twin-tube, 150 PSI gas-pressurized construction keeps air-to-oil foaming in check - a key advantage for SUVs that see varied use across urban commuting, highway travel, and outdoor recreation. With a 2.25" shock body holding more fluid than standard designs, and all-weather fluid formulation rated from -40°F to 248°F internally, this shock delivers consistent damping performance whether operating in winter cold or summer heat. At 22.58" extended and 13.99" collapsed, the RS55284 offers 8.59" of rear travel - well-matched to the factory suspension travel range of both the Liberty and Nitro. The 16mm nitro-carburized piston rod and 35mm Fluon-banded sintered iron piston ensure long-term wear resistance and responsive damping throughout the shock's service life.

The RS55284 fits both 2WD and 4WD variants of the Jeep Liberty (Sport, Renegade, Limited, Latitude, Jet, Arctic, and Renegade trims across both generations) and all Dodge Nitro trim levels including SXT, SLT, SE, Heat, Detonator, Shock, and R/T. Engine coverage spans the 2.4L I4 and 3.7L V6 on the KJ Liberty, the 3.7L V6 on the KK Liberty, and the 3.7L and 4.0L V6 engines across all Nitro trim levels. Owners of the 2005-2006 Liberty diesel (2.8L CRD) should verify OEM shock mounting specs before ordering. Installation is a direct-fit replacement using the factory mounting hardware with the included hardware kit. Backed by Rancho's Limited Lifetime Warranty, the RS55284 is a proven, performance-matched rear suspension upgrade for Liberty and Nitro owners seeking to restore or improve ride quality at factory ride height.