MAHLE 4021 CYLINDER HEAD GASKET 1994-2002 GM 6.5L DIESEL

• A composite cylinder head gasket manufactured by MAHLE Original—engineered to meet or exceed OEM specifications. It features a premium facing bonded to a perforated steel core, ensuring leak-free sealing in high-stress diesel engines
  

Vehicle Fitment

• Specifically compatible with 1992–2005 GM 6.5 L diesel engines—commonly found in Chevy/GMC full-size trucks, 3500 chassis cabs, Express vans, and Hummer H1 (2002–2004)
  

• Bore size: approximately 4.15″ (105.4 mm)
  

Key Specifications

• Part #: 4021 (also labeled HS4021 when sold as a complete head gasket set)
  

• Material: Composite with steel-reinforced core

• Thickness: ~0.04″ (1.07 mm) standard version; “T” variant measures ~0.05″ (1.32 mm) for rebuilt or decked heads
  

• Torque-to-yield design; premium packaging with shrink-wrap and 1-year warranty

The MAHLE 4021 Cylinder Head Gasket is a top-of-the-line product crafted for the GM 6.5L diesel engines produced between 1992 and 2005. Engineered by MAHLE Original, this composite gasket is designed to meet or exceed OEM specifications, ensuring reliability and performance in high-stress engine environments.

Featuring a premium facing bonded to a perforated steel core, the MAHLE 4021 offers exceptional leak-free sealing that is crucial for the efficiency and longevity of your diesel engine. Its robust construction withstands the demanding conditions often faced by full-size Chevy and GMC trucks, 3500 chassis cabs, Express vans, and even the rugged Hummer H1 model.

With a bore size of approximately 4.15 inches (105.4 mm) and a standard thickness of around 0.04 inches (1.07 mm), this gasket is available in a “T” variant measuring approximately 0.05 inches (1.32 mm) to accommodate rebuilt or decked heads. The torque-to-yield design guarantees a secure fit, while the premium packaging, complete with shrink-wrap, ensures that your gasket arrives in optimal condition.

The MAHLE 4021 Cylinder Head Gasket not only promises reliable performance but also comes with a 1-year warranty, providing peace of mind alongside outstanding quality. Whether you're a professional mechanic or a dedicated DIY enthusiast, this gasket is an essential component for maintaining the performance of your diesel engine. Upgrade your vehicle's performance with this meticulously engineered cylinder head gasket, ensuring your engine operates at its best for the long haul.