Front Lower Control Arm with Ball Joint Pair

Precision Steering and Handling for 2019-2024 Subaru Ascent

Restore the signature smooth ride and precise handling of your 3-row SUV with this premium 2-Piece Front Lower Control Arm and Ball Joint Set. Specifically engineered for the Subaru Global Platform (SGP) chassis used in the Ascent, these arms are critical for maintaining wheel alignment and absorbing road impacts. As a heavy vehicle designed for family hauling and light off-roading, the Ascent places significant stress on its lower suspension bushings and ball joints.

Over time, the factory rubber bushings can develop cracks or tears, and the ball joints can lose their internal tension. This results in "clunking" noises over speed bumps, steering wander, and accelerated tire wear. Replacing the entire arm assembly is the most efficient repair method, ensuring that both the inner bushings and the outer ball joint are refreshed simultaneously to restore factory-spec suspension geometry.

Fitment Verification and Vehicle Applications

This set is designed for the Front Left (Driver) and Front Right (Passenger) lower positions:

• Subaru Ascent (Base, Premium, Onyx, Limited, Touring): 2019, 2020, 2021, 2022, 2023, 2024.

• Engine Compatibility: Fits all models equipped with the 2.4L Turbocharged Boxer engine.

• Drivetrain: Specifically calibrated for Subaru Symmetrical All-Wheel Drive (AWD) geometry.

• Chassis Note: Designed to meet or exceed original equipment standards for structural rigidity and impact resistance.

Technical Specifications and Attributes

• Quantity: 2-Piece Set (Covers both Driver and Passenger sides).

• Material: High-Strength Forged Steel or Cast Iron (Matches factory structural specifications).

• Bushings: Pre-installed high-durability rubber bushings designed to reduce Noise, Vibration, and Harshness (NVH).

• Ball Joint: Features a pre-installed, precision-machined ball joint with high-performance grease and a heavy-duty dust boot.

• Coating: Corrosion-resistant finish to protect against road salt and moisture.

• Fitment Type: Direct Replacement (Bolt-on).

What’s in the Box

• (1) Front Driver Side Lower Control Arm with Integrated Ball Joint

• (1) Front Passenger Side Lower Control Arm with Integrated Ball Joint

Industry Cross-Reference Numbers

• Subaru: 20202XC00A, 20202XC01A, 20202XC00B, 20202XC01B

• Mevotech Supreme: CMS801236, CMS801237

• MAS Industries: CB72313, CB72314

• Dorman: 527-323, 527-324

Installation and Technical Tips

• Laden Weight Tightening: To prevent premature bushing failure, do not perform the final torque on the chassis-side mounting bolts while the vehicle is on a lift with the wheels hanging. Lower the car onto its own weight (or use ramps) before final tightening to ensure the rubber bushings are at their neutral resting position.

• Pinch Bolt Preparation: The ball joint is secured into the steering knuckle by a pinch bolt. These bolts are notorious for seizing in regions with road salt. Applying a high-quality penetrating oil to these bolts 24 hours prior to installation is highly recommended.

• Alignment Required: Replacing lower control arms fundamentally alters your vehicle's toe and camber settings. A professional four-wheel alignment is mandatory after installation to ensure the Eyesight® Driver Assist Technology and electronic steering sensors remain properly calibrated.

• Hardware Inspection: While many kits reuse factory bolts, it is a best practice to inspect the mounting hardware for stretching or corrosion. If the bolts show signs of wear, replace them with new high-tensile fasteners to ensure safety.