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.
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
| Attribute | Value |
|---|---|
| Brand | Mahle |
| Part Number | 54556A |
| Gasket Type | MLS (Multi-Layer Steel) |
| Thickness | 1.20 mm |
| Bore | 107.4 mm |
| Engine Compatibility | 2003–2007 5.9L Cummins 24-valve (Common Rail, VIN C) |
| UPC | 027067733443 |
| GTIN | 027067733443 |
| Shipping | Free Shipping |
| Package Dimensions | Approx. 10.00" × 0.25" × 37.00" |
| Prop 65 | See www.P65Warnings.ca.gov. |