Product Description
Mahle 54441 MLS Head Gasket for Notched 862 Heads
Fits 1999–2013 GM 4.8L & 5.3L LS-Based V8 Engines | Works with Notched & Non-Notched Heads
The Mahle 54441 Multi-Layer Steel (MLS) Head Gasket is engineered specifically for 2001 & earlier GM 4.8L and 5.3L LS-based cylinder heads that feature a factory “notch” in the deck surface—most commonly found on early 862 casting truck and SUV heads. This unique notch prevents proper sealing when using conventional MLS gaskets, making the Mahle 54441 the correct solution. Designed with a durable three-layer MLS construction, this gasket also works on later non-notched heads, making it the safest and most versatile choice when head style is uncertain. At .050" compressed thickness, it matches OEM specifications while offering superior strength and reliability compared to graphite or composite gaskets.These cylinder head gaskets will NOT work for 5.7L / 6.0L / 6.2L Engines.
Key Features & Benefits
- Designed for Notched 862 Heads: Specifically engineered to properly seal early 4.8L and 5.3L LS heads with factory notched deck surfaces where standard MLS gaskets fail.
- Compatible with Non-Notched Heads: Also works perfectly on later non-notched cylinder heads, making it an ideal choice when head casting style is unknown.
- Premium 3-Layer MLS Construction: Multi-layer steel design provides superior sealing strength, improved combustion containment, and long-term durability over graphite or paper gaskets.
- OEM .050" Compressed Thickness: Matches factory head gasket thickness to maintain proper compression ratio and valvetrain geometry.
- Flexible Purchase Options: Available as a single gasket or a matched pair, allowing you to order exactly what your engine build or repair requires.
Key Fitments
- GM Trucks & SUVs: Silverado 1500 1999–2013, Sierra 1500 1999–2013, Avalanche 1500 2002–2013, Suburban 1500 2000–2014, Tahoe 2000–2014, Yukon & Yukon XL 1500 2000–2014 with 4.8L or 5.3L LS-based engines.
- Cars & Performance Models: Impala SS 2006–2009, Monte Carlo SS 2006–2007, Pontiac Grand Prix 2005–2008, SSR 2003–2004 with 4.8L or 5.3L LS-based engines.
- Additional Applications: Trailblazer 2003–2008, Envoy 2003–2009, Rainier 2004–2007, Saab 9-7X 2005–2009, Hummer H3 & H3T 2008–2010, Express & Savana Vans 2003–2017 equipped with 4.8L or 5.3L LS-based engines.
