Control Arm (Rear Upper), KK (52125321AC)

Buy Control Arm (Rear Upper), KK (52125321AC)

The Control Arm (Rear Upper), KK (52125321AC) is a vital suspension component designed

for vehicles such as the Jeep Liberty (KK: 2008–2012) hand Dodge Nitro (2007–2011).

Manufactured as an original equipment (OEM) Mopar part, it is engineered to meet factory

standards for durability, strength, and precise fitment, ensuring consistent suspension performance and vehicle stability.

Positioned on the rear axle, the upper hcontrol arm serves as a structural link between the

vehicle frame and the rear suspension assembly. Its main function is to control the vertical

movement of the rear wheels while maintaining proper alignment. By managing suspension

articulation, the 52125321AC ensures consistent tire contact with the road, which improves

handling, stability, and braking performance. This is particularly important when driving on uneven terrain, during cornering, or when carrying heavy loads.

The 52125321AC is constructed from high-strength steel

The 52125321AC is constructed from high-strength steel and features integrated bushings

designed to absorb road shocks and vibrations. The bushings reduce noise, vibration, and

harshness transmitted into the cabin, contributing to a smoother and more comfortable ride.

The robust steel construction allows the control arm to withstand continuous stress, heavy loads, and environmental exposure, including moisture, salt, and debris. (carparts.com)

This control arm is a direct replacement for earlier part numbers, such as 52125321AB,

consolidating design improvements for enhanced durability and reliability.

individually, though replacing both left and right upper rear control arms simultaneously is

recommended to maintain suspension balance and consistent handling performance.

Common signs of wear or failure include clunking noises from the rear suspension, uneven

tire wear, decreased stability during turns, and a loose or unstable feeling in the rear axle.

Ignoring these symptoms can lead to premature wear of other suspension components and compromised vehicle handling.

Installation of the 52125321AC requires standard suspension tools and proper torque application

Overall, the Control Arm (Rear Upper), KK (52125321AC) is an essential suspension

component that maintains rear axle stability, improves ride comfort, and ensures long-term

durability and handling reliability in compatible Jeep and Dodge vehicles.