Cognito Alpha Series Rebuildable Ball Joint for Select 1999-2018 Chevrolet Silverado/GMC Sierra 1500

Fits select 1999-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 models equipped with Cognito Upper Control Arms.

The Cognito Alpha Ball Joint (MPN 199-91334) bridges the gap between the durability of a traditional ball joint and the high-performance articulation of a uni-ball. Engineered for independent front suspension (IFS) systems, this joint features a high-angle design to accommodate increased suspension travel without binding. Unlike standard press-in joints that require complete replacement when worn, the Alpha Ball Joint is fully rebuildable while still installed in the control arm. By removing the taper pin and top cap, you can swap internal components without removing the arm from the vehicle.

The heavy-duty construction replaces prone-to-failure plastic liners with alloy internal races for maximum longevity and superior pullout strength. A patented bootless seal protects the internals from weather and debris without the risk of torn boots. The housing is finished in a corrosion-resistant zinc plating and features an internal grease cavity for easy maintenance.

• Manufacturer Part Number: 199-91334
• Patent Number: U.S. Pat. 10,731,700
• Construction: Zinc-plated housing with alloy internal races
• Seal Type: Patented bootless scraper seal
• Articulation: High-angle design for maximum suspension travel
• Maintenance: Fully greasable and rebuildable in-place