Mahle VS50966 Engine Valve Cover Gasket Set
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Mahle
 Valve Cover Gasket Set

Mahle VS50966 Engine Valve Cover Gasket Set

Brand Mahle VS50966
Product line Valve Cover Gasket Set
Fits Chevrolet and GMC · 32 vehicles

OE-style sealing. MAHLE gasket engineering is trusted by OEMs and technicians worldwide.

Engine service part. Built as a valve cover gasket set for secure sealing performance.

Cross-references General Motors 12691860 for the same application. See all 1.

$76.86Free shipping
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Valve Cover Gasket Set Overview

Mahle VS50966 is an engine valve cover gasket set for heavy-duty GM trucks. It is built for secure sealing in applications where oil control and clean engine operation matter.

Key Features

  • Engine valve cover gasket set for sealing the valve cover to the cylinder head.
  • Fits 2021-2024 Chevrolet Silverado 2500 HD and Silverado 3500 HD.
  • Fits 2021-2024 GMC Sierra 2500 HD and Sierra 3500 HD.
  • Also fits 2017-2020 Chevrolet Silverado 2500 HD and Silverado 3500 HD, plus 2017-2020 GMC Sierra 2500 HD and Sierra 3500 HD.
  • MAHLE sealing products are trusted by OEMs and technicians worldwide.
  • Part number VS50966 for fitment-based search and ordering.

Detailed Description

Mahle VS50966 is a valve cover gasket set engineered for GM heavy-duty pickup applications that require dependable sealing performance. This part cross-references General Motors 12691860 for the same application. Use it on Chevrolet Silverado 2500 HD and Silverado 3500 HD, as well as GMC Sierra 2500 HD and Sierra 3500 HD, across the listed model years. The VS50966 part number is useful when verifying the correct gasket set for engine service work on these trucks.

Common Repair Uses

  • Oil seepage around the valve cover sealing surface.
  • Loss of sealing integrity after gasket wear or heat cycling.
  • Maintenance work that requires valve cover removal and resealing.
  • Engine oil residue buildup near the top end of the engine.

Installation Notes and Tips

Confirm engine-specific fitment before installation, since the listed trucks cover multiple engine configurations. Clean the sealing surfaces thoroughly and inspect the valve cover for damage or distortion before reassembly. Verify the part number VS50966 against the vehicle application before starting the repair.

Quality Assurance

MAHLE gaskets are recognized for sealing performance and are used by OEMs and technicians around the world. The VS50966 part number is associated with OE-style sealing applications for GM heavy-duty trucks.

This part fits 32 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2024ChevroletSilverado 2500 HD6.6LV8Steel; Valve Cover Gasket Set
2024ChevroletSilverado 3500 HD6.6LV8Steel; Valve Cover Gasket Set
2024GMCSierra 2500 HD6.6LV8Steel; Valve Cover Gasket Set
2024GMCSierra 3500 HD6.6LV8Steel; Valve Cover Gasket Set
2023ChevroletSilverado 2500 HD6.6LV8Steel; Valve Cover Gasket Set
2023ChevroletSilverado 3500 HD6.6LV8Steel; Valve Cover Gasket Set
2023GMCSierra 2500 HD6.6LV8Steel; Valve Cover Gasket Set
2023GMCSierra 3500 HD6.6LV8Steel; Valve Cover Gasket Set
2022ChevroletSilverado 2500 HD6.6LV8Steel; Valve Cover Gasket Set
2022ChevroletSilverado 3500 HD6.6LV8Steel; Valve Cover Gasket Set
2022GMCSierra 2500 HD6.6LV8Steel; Valve Cover Gasket Set
2022GMCSierra 3500 HD6.6LV8Steel; Valve Cover Gasket Set
2021ChevroletSilverado 2500 HD6.6LV8Steel; Valve Cover Gasket Set
2021ChevroletSilverado 3500 HD6.6LV8Steel; Valve Cover Gasket Set
2021GMCSierra 2500 HD6.6LV8Steel; Valve Cover Gasket Set
2021GMCSierra 3500 HD6.6LV8Steel; Valve Cover Gasket Set
2020ChevroletSilverado 2500 HD6.6LV8Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2020ChevroletSilverado 3500 HD6.6LV8Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2020GMCSierra 2500 HD6.6LV8Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2020GMCSierra 3500 HD6.6LV8Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2019ChevroletSilverado 2500 HD6.6LV8Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2019ChevroletSilverado 3500 HD6.6LV8Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2019GMCSierra 2500 HD6.6LV8Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2019GMCSierra 3500 HD6.6LV8Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2018ChevroletSilverado 2500 HD6.6LV8Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2018ChevroletSilverado 3500 HD6.6LV8Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2018GMCSierra 2500 HD6.6LV8Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2018GMCSierra 3500 HD6.6LV8Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2017ChevroletSilverado 2500 HD6.6LV8Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2017ChevroletSilverado 3500 HD6.6LV8Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2017GMCSierra 2500 HD6.6LV8Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
2017GMCSierra 3500 HD6.6LV8Fits various engine types and models for secure installation of Engine Cylinder Head Bolt Set.
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
General Motors — 12691860