Product Description
Seal your 6.4L the right way with the MAHLE 54657 Black Diamond™ multi-layer steel (MLS) head gasket for 2008–2010 Ford Power Stroke. Built for high cylinder pressures and towing heat, the Black Diamond coating improves micro-sealing on modern deck finishes and helps maintain clamp load under extreme conditions. Sold individually (one bank).
Fitment
- 2008–2010 Ford F-250 / F-350 / F-450 / F-550 Super Duty — 6.4L Power Stroke (VIN R)
Cross-Reference / Alternatives (Mahle on CPP Diesel only)
- MAHLE HS54657 HEAD GASKET SET (complete top-end set)
- MAHLE GS33495 CYLINDER HEAD BOLT SET
- MAHLE GS33566 TURBO MOUNTING GASKET SET
- MAHLE VS50503 VALVE COVER GASKET SET
- MAHLE JV5139 TIMING COVER GASKET SET
Notes
Part is sold per head—order quantity (2) to service both banks. Always verify thickness by build plan and inspect surface finish/flatness before installation.
FAQ
Is this gasket MLS and Black Diamond coated?
Yes. It’s a multi-layer steel design with MAHLE’s Black Diamond™ coating for improved micro-sealing and durability.
What are the thickness and bore size?
Compressed thickness is approximately 1.58 mm (≈0.062"), and bore is approximately 102.26 mm (≈4.026").
Do I need two gaskets to do both heads?
Yes—order quantity (2) for both banks. Head bolts/studs are sold separately.
Are dowel pins included?
Yes—this gasket includes 20 mm alignment dowels.
Specifications for Mahle 54657
| Attribute | Value |
|---|---|
| Brand | MAHLE |
| Part Number | 54657 |
| Material | MLS with Black Diamond™ coating |
| Compressed Thickness | ≈1.58 mm (≈0.062") |
| Bore Diameter | ≈102.26 mm (≈4.026") |
| Dowel Pins | 20 mm alignment dowels included |
| UPC | 27067789488 |
| GTIN | 027067789488 |
| Shipping | Calculated at checkout; optional shipping insurance available |
| Prop 65 | This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Learn more |
