• Cognito Alpha PRO Ball Joint - Upper Control Arm (Use w/ Cognito UCA) | 2015-2019 GMC Sierra 3500HD - Stateside Performance - Ball Joints - Cognito - Cognito Alpha PRO Ball Joint - Upper Control Arm (Use w/ Cognito UCA) | 2015-2019 GMC Sierra 3500HD
  • Cognito Alpha PRO Ball Joint - Upper Control Arm (Use w/ Cognito UCA) | 2015-2019 GMC Sierra 3500HD - Stateside Performance - Ball Joints - Cognito - Cognito Alpha PRO Ball Joint - Upper Control Arm (Use w/ Cognito UCA) | 2015-2019 GMC Sierra 3500HD
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COG199-91350

Cognito

Cognito Alpha PRO Ball Joint - Upper Control Arm (Use w/ Cognito UCA) | 2015-2019 GMC Sierra 3500HD

Cognito Alpha PRO Ball Joint - Upper Control Arm (Use w/ Cognito UCA) | 2015-2019 GMC Sierra 3500HD

$94.95 USD
$94.95 USD
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In stock

The Cognito Alpha PRO Ball Joint fits the 2015-2019 GMC Sierra 3500HD and replaces the factory upper ball joint with a sealed, greaseable, alloy-internal design built for heavy-duty IFS use.

Designed to pair with Cognito upper control arms for maximum suspension travel and longevity.

Install Difficulty: Professional Install Only
Pressing the ball joint into the upper control arm requires a shop press or ball joint press tool; typically takes 1-2 hours per side. Professional alignment required after any suspension modification.

Product Overview

The Alpha PRO uses a bootless scraper-type seal instead of a traditional dust/grease boot, eliminating the most common ball joint failure point on lifted 3500HD trucks.

Internals are alloy steel with alloy races and grease paths, no plastic liner, giving it greater pullout strength and the durability of a ball joint with the articulation of a uni-ball.

Pre-greased with Lithium Complex Grade 2 Grease and fitted with a top grease zerk for periodic maintenance. Designed for use with Cognito upper control arms.

Features & Specifications

  • Fits: 2015-2019 GMC Sierra 3500HD
  • Designed for use with Cognito upper control arms
  • Bootless scraper-type seal, no torn boots
  • Alloy steel internals with alloy races, no plastic liner
  • Greaseable with internal grease cavity
  • Pre-greased with Lithium Complex Grade 2 Grease
  • Carburized, surface-coated taper pin with oversized sphere
  • High-angle design for increased suspension travel
  • Zinc plated corrosion-resistant housing
  • Replacement billet cap included
  • Patented design (U.S. Pat. 10,731,700)

Fitment

This part fits the following vehicles:

Year Make Model Submodel
2015-2019 GMC Sierra 3500 HD Denali
2015-2019 GMC Sierra 3500 HD SLE
2015-2019 GMC Sierra 3500 HD SLT
âš  Submodel Fitment: If your submodel is not listed in the fitment table above, we cannot confirm fitment. Please contact us before purchasing to verify.

Shipping & Returns

Tracking is typically provided within 3–5 business days; items shipping direct from the manufacturer may take 5–7. Some items are made to order or may be backordered. Questions about stock? Reach us through live chat or email.

Warranty

All warranties are through the manufacturer and are facilitated by Stateside Performance. Some manufacturers require the end user to contact them directly; in that case we will point you to the right contact. Email us with any warranty questions.

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  • Free shipping over $250

    Free shipping applies to items that are shipped via ground through UPS or FedEx and are over $250 going to the continental 48 states. This does not apply to Alaska or Hawaii, and does not apply to any item(s) that are shipped via freight or with any other option other than ground shipping.

    Shipping policy 

  • 30-day returns

    Returns must be requested within 30 days of delivery. Parts must be new, unused, uninstalled, and in original packaging, with an RMA. Some items are final sale.

    Return policy