Product Description
Seal your late-build 6.0L the right way with the MAHLE 54579A Black Diamond™ 20mm Head Gasket. This multi-layer steel (MLS) gasket uses MAHLE’s advanced surface coating for reliable clamp retention under towing, tuning, and daily use. Sold individually—order two per engine—and includes two 20 mm dowel pins for correct cylinder-head alignment.
Fitment
- 2006.5–2007 Ford F-250/F-350/F-450/F-550 6.0L Power Stroke (20 mm dowels; see engine serial cutovers)
- 2004–2010 Ford E-Series 6.0L Power Stroke where equipped with 20 mm dowels
- Note: Early 6.0L engines (2003 to Jan 11, 2006) use 18 mm dowels—confirm dowel size before ordering.
Cross-Reference / Mahle Alternatives (links to CPP Diesel, Mahle only)
- Mahle HS54579 Cylinder Head Gasket Set (20 mm, complete head set): HS54579
- Mahle 54450A Head Gasket (18 mm dowels, early engines): 54450A
- Mahle HS54450 Cylinder Head Gasket Set (18 mm, complete head set): HS54450
- Mahle VS50395 Valve Cover Gasket Set (03–07 6.0L): VS50395
- Mahle JV5066 Timing Cover Gasket Set (03–07 6.0L): JV5066
- Mahle GS33576 Turbocharger Mounting Gasket Set (03–07 6.0L): GS33576
What’s Included
- (1) MLS head gasket with Black Diamond™ coating
- (2) 20 mm cylinder-head dowel pins
FAQ
Do I need one or two gaskets?
Sold individually—order two to service both cylinder heads.
How do I confirm 20 mm vs 18 mm?
Ford switched to 20 mm dowels on January 12, 2006. Measure dowels or verify engine serial numbers before purchase.
Are head bolts/studs included?
No. Use new bolts or quality studs during reassembly.
Is this gasket MLS?
Yes—multi-layer steel with MAHLE’s Black Diamond surface treatment.
Specifications for Mahle 54579A
| Attribute | Value |
|---|---|
| Brand | Mahle |
| Part Number | 54579A |
| UPC | 027067878380 |
| GTIN | 00027067878380 |
| Construction | MLS with Black Diamond™ coating |
| Dowel Size | 20 mm |
| Package Dimensions (W × H × D) | 9.00" × 1.00" × 24.00" |
| Shipping | Calculated at checkout (insurance optional) |
| Prop 65 | See www.P65Warnings.ca.gov |
