Delphi TC8311 Suspension Control Arm and Ball Joint Assembly - Rear Left Upper

Rear Left Upper Control Arm for Subaru Outback

Delphi TC8311 is a premium suspension control arm and ball joint assembly for the rear left upper position on select Subaru Outback models. It is built with a cast iron control arm, pre-greased ball joint, and included bushings to support precise rear suspension movement and OE-style fitment.

Key Features

• Fits 2010-2019 Subaru Outback, rear left upper
• Delphi TC8311 suspension control arm and ball joint assembly
• Cast iron control arm with casting/forged construction
• Pre-greased ball joint with grooved stud and machined mounting type
• Black painted finish with black bushings
• Dust boot included with chloroprene rubber construction
• Bushings included; mounting hardware not included
• Non-adjustable and non-greaseable design

Detailed Description

Delphi TC8311 is engineered for the rear left upper suspension position on 2010-2019 Subaru Outback models. Delphi applies OE-focused dimensional and material analysis to help maintain proper alignment, suspension geometry, and part-to-part compatibility. This assembly includes the ball joint, bushings, and dust boot, making it a direct replacement option for worn rear suspension components on Subaru Outback applications.

This part cross-references Mevotech Supreme CMS801199 for the same application. Delphi TC8311 is also associated with OE reference numbers 20252 AJ03A and 20252 SC010.

Common Problems This Part Can Help Address

• Rear suspension clunking or knocking from worn ball joint or bushings
• Excessive play in the rear left upper control arm
• Uneven tire wear caused by suspension wear
• Loose or unstable rear-end handling on Subaru Outback models
• Corrosion-related replacement needs on aging suspension components

Installation Notes and Tips

Verify the rear left upper position before installation and compare the original arm dimensions to the replacement part. Because mounting hardware is not included, reuse or source the correct fasteners as needed. After installation, perform a wheel alignment and inspect adjacent suspension components for wear.

Quality Assurance

Delphi tests steering and suspension components under extreme temperature and corrosion conditions, including sub-zero and high-heat exposure plus extended salt-spray testing. This helps support consistent performance for Subaru Outback rear suspension service and replacement.