Product Description
MAHLE HS54580 is an OE-quality cylinder head head set engineered for the 2001–2004 GM 6.6L Duramax LB7. It includes the essential upper-engine gaskets, O-rings, and seals—plus RTV—for a complete, reliable top-end reseal. Head gaskets and head bolts are not included.
- Engine: 6.6L Duramax LB7 (VIN 1)
- Includes intake/exhaust manifold gaskets, valve cover seals, injector O-rings, thermostat/water outlet gaskets, turbocharger and related seals, and RTV
- Warranty: 1-Year Limited
- GTIN/UPC: 027067724175
Fitment
- 2001, 2002, 2003, 2004 Chevrolet Silverado 2500HD/3500HD 6.6L Duramax LB7
- 2001, 2002, 2003, 2004 GMC Sierra 2500HD/3500HD 6.6L Duramax LB7
Cross Reference Numbers
- OEM (GMC/Chevy): 97729798
- Competitor: Fel-Pro HSU26269
What’s Included
Comprehensive upper-engine gasket & seal set: multiple O-rings, intake/exhaust manifold gaskets, valve stem seals, valve cover grommets, injector nozzle O-rings & copper washers, turbo inlet/drain, thermostat/water outlet, various by-pass/water pipe seals, and silicone sealant (see components list on XDP page for full breakdown).
FAQ
Will this fit my LB7 Duramax?
Yes—this head set is for the 2001–2004 6.6L Duramax LB7 in Silverado/Sierra 2500HD/3500HD.
Are the head gaskets included?
No. This is a head set (upper-engine gasket kit). Pair with the correct grade head gaskets for your block deck height.
Are head bolts or studs included?
No. Bolts/studs are sold separately. Replace torque-to-yield bolts when reassembling.
Does it include RTV?
Yes—RTV is included for sealing surfaces that require it.
Any part numbers I should know?
Yes—OEM interchange 97729798, competitor HSU26269, and GTIN 027067724175.
