
- Direct-Fit Replacements: Engineered for a precise fit, these gaskets, seals, and O-rings ensure a straightforward installation and optimal sealing.
- Premium Head Gasket Construction: The 105mm head gaskets feature a robust SS301 material for the outer layers and a durable stainless steel center core, providing exceptional strength and resilience under demanding conditions.
- Advanced Coating Technology: Each head gasket boasts a complete surface coating of PTFE material, further enhanced with a mask-coated FKM Fluoroelastomer Coating. This advanced dual-layer coating ensures superior sealing capabilities and enhanced resistance to heat and chemicals, critical for your Duramax engine.
- Grade C Thickness: This set includes Grade C thickness head gaskets (1.05 mm), providing the specific thickness required for proper compression and sealing in your LLY/LBZ Duramax.

If you're reassembling the top end of your 2004.5-2007 GM 6.6L Duramax LLY/LBZ engine, the Powerstroke Products PP-HGS-LBZ LLY/LBZ Head Gasket Set is an essential component for a reliable and long-lasting repair. This comprehensive set provides everything you need to restore your engine's integrity, ensuring a factory-like fit and function. We understand the importance of quality in engine components, which is why this set is engineered with superior materials and advanced coating technologies to deliver exceptional performance and durability for your Duramax.
Direct-Fit Replacements: Engineered for a precise fit, these gaskets, seals, and O-rings ensure a straightforward installation and optimal sealing.
Premium Head Gasket Construction: The 105mm head gaskets feature a robust SS301 material for the outer layers and a durable stainless steel center core, providing exceptional strength and resilience under demanding conditions.
Advanced Coating Technology: Each head gasket boasts a complete surface coating of PTFE material, further enhanced with a mask-coated FKM Fluoroelastomer Coating. This advanced dual-layer coating ensures superior sealing capabilities and enh[...]
- Direct-Fit Replacements: Engineered for a precise fit, these gaskets, seals, and O-rings ensure a straightforward installation and optimal sealing.
- Premium Head Gasket Construction: The 105mm head gaskets feature a robust SS301 material for the outer layers and a durable stainless steel center core, providing exceptional strength and resilience under demanding conditions.
- Advanced Coating Technology: Each head gasket boasts a complete surface coating of PTFE material, further enhanced with a mask-coated FKM Fluoroelastomer Coating. This advanced dual-layer coating ensures superior sealing capabilities and enhanced resistance to heat and chemicals, critical for your Duramax engine.
- Grade C Thickness: This set includes Grade C thickness head gaskets (1.05 mm), providing the specific thickness required for proper compression and sealing in your LLY/LBZ Duramax.