Product Description
MAHLE HS54580B is an OE-quality upper engine head set for the mid-year 2007.5–2010 GM 6.6L Duramax LMM. It supplies the gaskets and seals needed for cylinder-head service. Head gaskets and head bolts are not included. Packaged in a shrink-wrapped tray so you can view contents before opening. Meets or exceeds OE specifications.
- Application: 6.6L Duramax LMM (2007.5–2010)
- Includes upper-engine gaskets/seals for head service; head gaskets sold separately
- Exhaust manifold gasket material: Multi-Layered Steel (MLS)
- Intake manifold gasket material: Victo-Tech
- Contains RTV where required
- UPC/GTIN: 027067846761
Fitment
- 2007.5–2010 Chevrolet Silverado 2500HD / 3500HD (6.6L Duramax LMM)
- 2007.5–2010 GMC Sierra 2500HD / 3500HD (6.6L Duramax LMM)
- 2007–2010 Chevrolet Express 2500 / 3500; 2010 Express 4500 (6.6L Duramax)
Cross Reference Numbers (select items in set)
- 97188684 (Exhaust Manifold Gasket Set)
- 97188685 (Exhaust Pipe Flange Gasket)
- 97208191 (Turbocharger Oil Line Gasket)
- 97212994 (Valve Stem Oil Seal Set)
- 97227012 (Turbocharger Gasket)
- 97300793 (Thermostat Housing Gasket)
- 97312341 (Valve Cover Gasket Set)
- 97315638 (Valve Cover Grommet)
- 97321295 (Push Rod Cover Gasket Set)
- 97327722 (Injector O-Ring)
- 97331137 (Bulk Gasket)
- 97363570 (Intake Manifold Gasket Set)
- 97363723 (Plenum Seal)
- 97365040 (Throttle Body Mounting Gasket)
- 97365201 (Plenum Seal)
- 97367013 / 97367014 (EGR Valve Gaskets)
- 97373522 (Intake Manifold Gasket Set)
- 97375503 (Throttle Body Mounting Gasket)
- 98054443 / 98054444 (Gaskets)
Cross-refs correspond to OE numbers for components included in the set.
What’s Included
Comprehensive upper-engine gasket & seal kit for both cylinder heads: intake & exhaust manifold gaskets, valve cover gaskets/grommets, injector O-rings, EGR & turbocharger line gaskets, thermostat housing and related seals. Does not include head gaskets or head bolts.
FAQ
Does this kit include the two head gaskets?
No. This is the head set (upper gasket kit). Head gaskets are sold separately so you can choose the correct thickness for your engine.
Are head bolts/studs included?
No. Reuse only if within spec; most builders upgrade to new TTY bolts or studs during head service.
Is the exhaust manifold gasket MLS?
Yes, the exhaust manifold gasket material is multi-layer steel (MLS) for durability.
What vehicles does HS54580B fit?
GM 6.6L Duramax LMM applications: 2007.5–2010 Silverado/Sierra 2500HD & 3500HD and select 2007–2010 Express vans (see fitment list above).
