Product Description
MAHLE VS50439 is an OE-style valve cover gasket set for the 2004.5–2010 GM 6.6L Duramax (LLY/LBZ/LMM). Molded-rubber construction ensures a reliable seal to stop oil seepage around the valve covers. One kit required per engine.
- Application: 6.6L Duramax Diesel (LLY, LBZ, LMM)
- Material: Molded rubber with grommets
- Kit Qty: One kit services one engine
- Warranty: 1-Year Limited
Fitment
- Chevrolet Silverado 2500HD/3500/3500HD (2004.5–2010)
- GMC Sierra 2500HD/3500/3500HD (2004.5–2010)
- Chevrolet Express 2500/3500/4500 (2006–2010)
- GMC Savana 2500/3500 (2006–2010)
- Chevrolet/GMC C4500/C5500 Kodiak/TopKick (2005–2007)
- Hummer H1 (2006)
Cross Reference / Specs
- Fel-Pro: VS50684R
- UPC/GTIN: 027067722423
- MPN: VS50439
FAQ
Will this fit LLY, LBZ, and LMM?
Yes. It’s designed for 2004.5–2010 6.6L Duramax LLY/LBZ/LMM in Silverado/Sierra HD and related GM platforms listed above.
What’s included?
A complete molded-rubber valve cover gasket set with grommets for both covers. One kit services one engine.
Do I need sealant?
Generally no—install dry on clean, oil-free surfaces unless GM service info calls for small dabs at timing cover/joint corners.
Any tips for a leak-free install?
Inspect cover flatness, clean mating surfaces, torque fasteners in sequence to OE spec, and replace any damaged grommets or hardware.
