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Mahle HS54580A Head Set – LLY | LBZ Duramax
The Mahle Original HS54580A is a complete upper engine (head) gasket set designed specifically for 2004.5–2007 GM 6.6L Duramax LLY and LBZ engines. This kit supplies the essential gaskets and seals needed to properly reseal the top end of the engine after cylinder head work, injector service, or a full top-end refresh.
Key Features
- Direct-fit replacement for both cylinder banks
- Molded rubber intake manifold gaskets
- Multi-layer steel (MLS) exhaust manifold gaskets
- Injector O-rings and crush washers included
- Valve cover gaskets/seals + RTV
- Turbo-related gaskets (including downpipe)
- OEM-standard quality — meets or exceeds original equipment specifications
- Packaged in a shrink-wrapped tray so you can inspect contents before opening
Important: Cylinder head gaskets and head bolts/studs are not included and must be purchased separately. This set works with Grade A, B, or C head gaskets.
Fitment: 2004.5–2007 Chevrolet Silverado / GMC Sierra 2500HD & 3500 with 6.6L Duramax LLY or LBZ
Mahle is a major OEM supplier trusted for reliable sealing solutions in demanding diesel applications.
Mahle HS54580A Head Set – LLY | LBZ Duramax
The Mahle Original HS54580A is a complete upper engine (head) gasket set designed specifically for 2004.5–2007 GM 6.6L Duramax LLY and LBZ engines. This kit supplies the essential gaskets and seals needed to properly reseal the top end of the engine after cylinder head work, injector service, or a full top-end refresh.
Key Features
Direct-fit replacement for both cylinder banks
Molded rubber intake manifold gaskets
Multi-layer steel (MLS) exhaust manifold gaskets
Injector O-rings and crush washers included
Valve cover gaskets/seals + RTV
Turbo-related gaskets (including downpipe)
OEM-standard quality — meets or exceeds original equipment specifications
Packaged in a shrink-wrapped tray so you can inspect contents before opening
Important: Cylinder head gaskets and head bolts/studs are not included and must be purchased separately. This set works with Grade A, B, or C head gaskets.
Fitment:
2004.5–2007 Chevrolet Silverado / GMC Sierra 2500HD & 3500 with 6.6L Duramax LLY or LBZ
Mahle is a major OEM supplier t[...]
Mahle HS54580A Head Set – LLY | LBZ Duramax
The Mahle Original HS54580A is a complete upper engine (head) gasket set designed specifically for 2004.5–2007 GM 6.6L Duramax LLY and LBZ engines. This kit supplies the essential gaskets and seals needed to properly reseal the top end of the engine after cylinder head work, injector service, or a full top-end refresh.
Key Features
- Direct-fit replacement for both cylinder banks
- Molded rubber intake manifold gaskets
- Multi-layer steel (MLS) exhaust manifold gaskets
- Injector O-rings and crush washers included
- Valve cover gaskets/seals + RTV
- Turbo-related gaskets (including downpipe)
- OEM-standard quality — meets or exceeds original equipment specifications
- Packaged in a shrink-wrapped tray so you can inspect contents before opening
Important: Cylinder head gaskets and head bolts/studs are not included and must be purchased separately. This set works with Grade A, B, or C head gaskets.
Fitment: 2004.5–2007 Chevrolet Silverado / GMC Sierra 2500HD & 3500 with 6.6L Duramax LLY or LBZ
Mahle is a major OEM supplier trusted for reliable sealing solutions in demanding diesel applications.
Fits: Duramax 2001-2016
Fits: Duramax 2001-2016
Fits: Duramax 2001-2010
Fits: Duramax 2001-2016
Fits: Duramax 2006-2016
Fits: 2500/3500HD Silverado | Sierra 2001-2026