Cognito SM Series Upper Control Arm Kit | 2024+ 2500HD AT4X/ZR2

Cognito SM Series Upper Control Arm Kit

For 2024–2025 Silverado 2500HD ZR2 / Sierra 2500HD AT4X

Upgrade your factory control arms with the Cognito SM Series Upper Control Arm Kit — designed to enhance front suspension geometry, improve handling, and deliver a more aggressive, functional stance. This premium stock-replacement upgrade adds strength, style, and performance to your heavy-duty truck without compromising ride quality or factory alignment.

The boxed sheet metal arms are powder-coated in semi-gloss black for a clean, durable finish and come complete with Cognito Alpha Joints and maintenance-free pivot bushings for long-lasting performance.

Features:

• Direct stock replacement for 2024–2025 Silverado 2500HD ZR2 and Sierra 2500HD AT4X
• Corrected ball joint angle for improved suspension geometry
• Added caster for enhanced stability and steering feel
• Equipped with Cognito Alpha Joints
• Maintenance-free pivot bushings for durability and zero upkeep
• Heavy-duty boxed sheet metal construction
• Powder-coated semi-gloss black finish
• Approximate install time: 2 hours (DIY-friendly)
• Made in the USA

Vehicle Fitment:

• 2024–2025 GMC Sierra 2500HD AT4X
• 2024–2025 Chevrolet Silverado 2500HD ZR2

Warranty & Manufacturing:

• Limited Lifetime Warranty on all Cognito-branded products
• Proudly engineered and manufactured in Southern California, USA