Delphi TC4008 Suspension Control Arm and Ball Joint Assembly - Front Right Lower

Front Right Lower Control Arm Assembly

Delphi TC4008 is a premium suspension control arm and ball joint assembly for the front right lower position. It is built for 2015-2019 Subaru Legacy and 2015-2019 Subaru Outback applications, with OE-focused dimensions and materials for direct replacement service.

Delphi applies OE-level testing and dimensional analysis to help ensure proper fit and consistent suspension performance. This assembly includes the ball joint, bushings, dust boot, and mounting hardware, making it a complete service part for the front right lower corner of the vehicle.

• Fits 2015-2019 Subaru Legacy, front right lower
• Fits 2015-2019 Subaru Outback, front right lower
• Part number: TC4008
• Tubular steel control arm with black finish
• Ball joint included with press-in mounting type
• Threaded ball joint stud with clockwise (right) thread direction
• Pre-greased design with bushings included
• Dust boot included; chloroprene rubber boot material
• Mounting hardware and locking nut included
• Non-adjustable, premium-grade replacement assembly

Detailed Product Overview

TC4008 is engineered as a direct-fit front right lower control arm assembly for Subaru Legacy and Subaru Outback models from 2015 through 2019. The tubular steel construction, rubber bushings, and press-in ball joint design support a service-ready replacement for worn suspension components. Delphi’s OE expertise and material analysis are used to match aftermarket fitment to original equipment requirements as closely as possible.

This part cross-references MOOG Chassis Products RK623476 for the same application. The part number TC4008 is also a useful reference when verifying the correct front right lower assembly for these Subaru vehicles.

Common Problems This Part Can Address

• Clunking or knocking from the front suspension
• Excessive play in the lower control arm or ball joint
• Uneven tire wear caused by worn suspension joints
• Steering pull or unstable road feel
• Cracked or deteriorated bushings and dust boot damage

Installation Notes

Confirm the front right lower position before installation and compare the old assembly to the new part for bushing spacing, stud type, and mounting points. Because the ball joint is press-in and the assembly is non-adjustable, proper alignment service should follow replacement. Verify torque specifications and inspect adjacent suspension components during installation.

Quality Assurance

Delphi subjects its OE-style steering and suspension parts to extreme temperature and corrosion testing, including sub-zero and high-heat exposure plus extended salt-spray testing. That validation process supports consistent material durability and fit accuracy for Subaru Legacy and Subaru Outback service applications.