Product Description
MAHLE 54556A is a service-specific over-bore MLS head gasket for 2003–2007 5.9L Cummins (24-valve). Built to OE standards, it features a 107.4 mm bore and 1.20 mm thickness for reliable sealing under high cylinder pressures.
- Construction: Multi-Layer Steel (MLS)
- Thickness: 1.20 mm
- Bore: 107.4 mm
- Grade: OEM standard
- Piston protrusion: > 0.30 mm (service-specific)
- Warranty: 1-Year Limited
- GTIN/UPC: 027067733443
Fitment
- 2003, 2004, 2005, 2006, 2007 Dodge Ram 2500 / 3500 with 5.9L Cummins (24V Common Rail, VIN C)
Cross Reference Numbers
- Cummins: 3966342, 2830705
- Fel-Pro: 26218PT
What’s Included
Single cylinder head gasket (head bolts/studs and ancillary gaskets sold separately).
FAQ
Will 54556A fit my 2003–2007 5.9L Cummins?
Yes. It’s designed for 2003–2007 Ram 2500/3500 5.9L 24-valve Cummins (VIN C).
Is this an MLS (multi-layer steel) gasket?
Yes—MAHLE’s MLS design delivers OE-level sealing and durability.
What thickness and bore size is it?
1.20 mm thickness and 107.4 mm bore (service-specific over-bore).
Do I need new head bolts or studs?
It’s strongly recommended to replace bolts or upgrade to studs during installation (sold separately).
Any surface prep requirements?
Verify head/block flatness and surface finish to Cummins specs for best MLS sealing.
