Product Description
MAHLE HS54450 is the OE-grade 18mm dowel cylinder head gasket set for the 2003–2006 Ford 6.0L Power Stroke. Built with Black Diamond™ coated multi-layer steel (MLS) head gaskets and premium top-end seals, this kit restores proper sealing under towing, work-truck, and daily-driver loads while maintaining factory fit and durability.
Fitment
- Ford 6.0L Power Stroke (18mm dowel): 2003–2006 F-250/F-350/F-450/F-550 & Excursion with 6.0L diesel using 18 mm head-dowel pins.
- Verify dowel size before ordering: early engines use 18 mm; mid-2006+ applications use 20 mm.
- Includes MLS head gaskets and related upper-engine gaskets/seals. Head bolts/studs not included.
Cross-Reference / Alternatives (Mahle only)
- MAHLE HS54579 – 20 mm dowel head set for late-2006–2007 6.0L.
- MAHLE 54450A – Black Diamond™ 18 mm single head gasket (order 2 per engine).
- MAHLE CS54450 – Lower/conversion gasket set for 2003–2007 6.0L.
- MAHLE VS50395 – Valve cover gasket set for 2003–2007 6.0L.
Why Choose MAHLE / Clevite
- Black Diamond™ coated MLS head gaskets for excellent micro-sealing and durability.
- OE-equivalent materials and geometry for factory-correct fit.
- Complete upper-engine set simplifies 6.0L top-end service.
Installation Notes
- Confirm 18 mm dowel pins before disassembly; match gasket set to dowel size.
- Follow Ford torque/angle sequence; use new head bolts or studs.
- Inspect head/block flatness and surface Ra; clean oil/coolant passages.
FAQ
Does HS54450 include head bolts?
No. Bolts or studs are sold separately. This kit focuses on the head gaskets and related upper-engine seals.
How do I know if I need 18 mm or 20 mm dowels?
Early 6.0L engines (2003–early 2006) use 18 mm dowels; late-2006–2007 typically use 20 mm. Confirm by measuring the locating dowels or checking build date and service info.
Are the gaskets MLS and Black Diamond™ coated?
Yes—HS54450 supplies MLS head gaskets with MAHLE’s Black Diamond™ coating for enhanced sealing.
What are the package dimensions and shipping details?
Approx. 10.5" W × 2.0" H × 24.0" L. Free Shipping from CPP Diesel (continental U.S.).
Specifications for Mahle HS54450
| Attribute | Value |
|---|---|
| Brand | MAHLE / Clevite |
| Part Number | HS54450 (18 mm dowel head set) |
| UPC (GTIN-12) | 027067652386 |
| GTIN-14 | 00027067652386 |
| Shipping Info | Free Shipping; approx. package 10.5" × 2.0" × 24.0". |
| Country of Origin | USA (per supplier listings) |
| Prop 65 | Not listed by manufacturer. For general info, see www.P65Warnings.ca.gov. |
