Product Description
MAHLE VS50434 is the lower rocker (rocker box) cover gasket set for 2004.5–2010 GM 6.6L Duramax LLY/LBZ/LMM. Built from durable steel, this direct-fit pair restores OE sealing between the lower rocker cover and cylinder head to stop oil seepage and keep your bay clean.
- Sold as a pair (left & right)
- Steel construction for longevity
- Direct-fit replacement to OE specs
Fitment
- 2004.5–2010 Chevrolet/GMC 6.6L Duramax LLY / LBZ / LMM (truck & van applications as equipped)
Cross Reference Numbers
- OE/GM: 97321295
- GTIN/UPC: 027067720542
- Mahle: VS50434
What’s Included
- (2) Lower rocker cover gaskets (one per bank)
FAQ
Will this fit my 2004.5–2010 Duramax?
Yes—this set fits LLY, LBZ, and LMM 6.6L engines from mid-2004 through 2010.
Is this the lower rocker cover (rocker box) gasket, not the upper valve cover?
Correct—these gaskets seal the lower rocker/rocker box to the cylinder head.
Are these steel gaskets?
Yes—steel construction for OE-level durability and sealing.
Do I need to buy two?
No—this listing is sold as a pair, covering both banks.
Torque or sealant needed?
Install on clean, dry mating surfaces and torque fasteners to the factory spec. No RTV unless the OE procedure specifies it at joints.
