MAHLE 54556A HEAD GASKET FOR 03-07 CUMMINS 5.9L

Product Description

Seal your 5.9L common-rail the right way with the MAHLE 54556A MLS Head Gasket for 2003–2007 Ram 2500/3500. This service-specific over-bore gasket uses multi-layer steel construction for clamp-load retention and reliable combustion sealing under stock or tuned conditions. Thickness is 1.20 mm with a 107.4 mm bore for engines that require the “A” (thick/over-bore) specification.

Mahle 54556A head gasket, 5.9L Cummins head gasket 2003 2004 2005 2006 2007, MLS head gasket Cummins, over-bore 107.4 mm, 1.20 mm thick, Ram 2500 Ram 3500 VIN C, Mahle gasket 24-valve common rail

Fitment

• 2003, 2004, 2005, 2006, 2007 Dodge Ram 2500/3500 — 5.9L Cummins 24-valve (Common Rail, VIN C)

Cross-Reference / Alternatives (Mahle only)

• Mahle HS54557 Cylinder Head Gasket Set (Std bore MLS): HS54557
• Mahle HS54556 Cylinder Head Gasket Set (1.20 mm, over-bore MLS): HS54556
• Mahle 54557 Individual Head Gasket (1.18 mm, 102.0 mm std bore): 54557
• Mahle GS33584 Turbo Mounting Gasket Set (03–07 5.9L): GS33584
• Mahle OS32278 Oil Pan Gasket (03–07 5.9L): OS32278

What’s Included

• Single MLS cylinder head gasket (54556A). Head bolts/studs and ancillary gaskets sold separately.

FAQ

Is 54556A the “thick/over-bore” gasket?
Yes. 54556A is a 1.20 mm MLS gasket with a 107.4 mm bore for engines that require the service-specific over-bore spec.

Will it fit every 2003–2007 5.9L?
It fits 2003–2007 Ram 2500/3500 with the 5.9L 24-valve common-rail (VIN C). Always verify piston protrusion and thickness grade during head service.

Do I need new head bolts or studs?
Highly recommended—replace bolts or upgrade to studs for best long-term sealing.

Any prep tips for MLS gaskets?
Check block/head flatness and surface finish per Cummins spec; follow proper torque/angle sequence and lube guidance.

Specifications for Mahle 54556A