Sinister Diesel 2001-2010 Duramax, Black Diamond Head Gasket (Driv. B) – SD-BD584


Product Highlights:

Replace your leaky or blown head gasket with this high-quality Sinister Diesel Duramax head gasket. It’s a direct replacement for the OE head gasket, but features an extra-durable design which handles the extreme pressure and heat of a turbo diesel engine without problems. This will fit Duramax engines LB7, LLY, LBZ, and LMM from 2001 to 2010.

Each Sinister Black Diamond Head Gasket is made of 5 layers of stainless steel sandwiched together. The design provides a heavy-duty seal for each cylinder, while an adaptive fluoroelastomer (FKM) coating provides an optimal seal for fluids. That means a secure, super tight seal between the cylinder block and cylinder head, ensuring proper operation of your engine.

Vehicle Fitment

2001-2010 Duramax (LB7, LLY, LBZ, and LMM)

Key Features

  • Construction – Multi-layer Steel
  • Product Design – Driver Side, Grade B 1.00mm thickness, Coated with Adaptive fluoroelastomer (FKM)


  • Kit Includes – (1) Sinister Diesel Black Diamond 20mm Head Gasket

*Special Order. Please allow for additional shipping time.