Moog CK620888 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Front Left Lower Control Arm for GM SUVs and Trucks

The Moog CK620888 is a front left lower suspension control arm and ball joint assembly built for heavier loads and rougher road conditions. It is a direct-fit replacement for select Cadillac, Chevrolet, and GMC applications, including Escalade, Tahoe, Yukon, Silverado 1500, and Sierra 1500 models.

Key Features

• Powder coated steel construction for added corrosion resistance
• Ball joint included for a complete front left lower assembly
• Bushings included for proper arm-to-frame mounting
• Greaseable design with grease fitting included for serviceability
• Castle nut and cotter pin included for secure installation
• Premium grade replacement built for demanding road use
• Non-adjustable design for OE-style fitment

Detailed Product Overview

Moog CK620888 is engineered as a front left lower control arm assembly for 2014-2018 Chevrolet Silverado 1500, 2019 Chevrolet Silverado 1500 LD, 2014-2018 GMC Sierra 1500, 2019 GMC Sierra 1500 Limited, and 2015-2020 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, GMC Yukon, and GMC Yukon XL. The steel arm uses a powder-coated finish and includes the ball joint and bushings needed for a complete suspension service on the front left lower position. This part cross-references Dorman OE Solutions 521-645 and 524-063 for the same application. The Moog CK620888 is a practical choice when replacing worn front suspension components on GM full-size SUVs and trucks.

Common Problems This Part Can Address

• Front-end clunking or popping from a worn lower control arm or ball joint
• Uneven tire wear caused by looseness in the front suspension
• Steering wander or reduced road feel from deteriorated bushings
• Excessive play in the front left lower suspension joint
• Corrosion-related wear on an original control arm assembly

Installation Notes and Tips

Fits 2015-2020 Cadillac Escalade, front left lower; 2015-2020 Cadillac Escalade ESV, front left lower; 2015-2020 Chevrolet Tahoe, front left lower; 2015-2020 GMC Yukon, front left lower; 2015-2020 GMC Yukon XL, front left lower; 2019 Chevrolet Silverado 1500 LD, front left lower; 2019 GMC Sierra 1500 Limited, front left lower; 2014-2018 Chevrolet Silverado 1500, front left lower; and 2014-2018 GMC Sierra 1500, front left lower. Verify alignment after installation and inspect related suspension wear items before returning the vehicle to service. The included grease fitting supports routine lubrication where service access is available.

Quality Assurance

Moog High Utilization Designs are developed for heavier loads and more punishing roads when added strength, durability, and confidence are required. CK620888 follows that approach with a serviceable, premium-grade construction for GM front suspension repair.