Karlyn 12-4133 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Front Left Upper Control Arm for LR4

The Karlyn 12-4133 is a front left upper suspension control arm and ball joint assembly for Land Rover LR4 applications. It is built for the front left upper position and supports precise suspension geometry on 2010-2016 LR4 models.

Karlyn-STI focuses on suspension components for direct-fit replacement needs, and this part number 12-4133 is listed for the front left upper location on the LR4 platform.

Key Features

• Front left upper suspension control arm and ball joint assembly
• Direct fit for Land Rover LR4 front suspension service
• Application-specific for 2010-2016 LR4 models
• Karlyn-STI part number 12-4133
• Supports restoration of front suspension alignment and joint articulation

Detailed Description

Use the Karlyn 12-4133 when servicing the front left upper suspension on a Land Rover LR4. This assembly combines the control arm and ball joint into one replacement part for the front left upper position, helping restore proper suspension movement and steering response on LR4 vehicles from 2010 through 2016. If you are searching for a front left upper control arm and ball joint assembly for Land Rover LR4 2010-2016, part number 12-4133 matches that application.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Repair Uses

• Front-end clunking or looseness from a worn upper control arm
• Excessive play at the front left upper ball joint
• Uneven tire wear related to suspension geometry issues
• Steering wander or reduced directional stability
• Suspension noise during bumps, turns, or braking

Installation Notes

Install on the front left upper position only. After replacement, perform a professional wheel alignment to verify suspension angles and steering wheel centering. Confirm vehicle year and LR4 trim before ordering, and compare the original part number 12-4133 to the removed component for application match.

Quality Assurance

Karlyn-STI suspension components are cataloged for vehicle-specific replacement use. Verify fitment against the listed 2010-2016 Land Rover LR4 front left upper application before installation.