Product Description
Correctly align your 6.0L heads the first time with the MAHLE GS33593 18mm to 20mm Stepped Cylinder Head Dowel Pin. This OE-style steel pair bridges mixed 18 mm/20 mm components on 2003–2007 Ford 6.0L Power Stroke engines for precise head-to-block location and long-term gasket sealing under towing heat and clamp loads.
Fitment
- 2003–2007 Ford Super Duty F-250/F-350/F-450/F-550 with 6.0L Power Stroke (VT365)
- Works when mixing 18 mm and 20 mm dowel components (stepped design)
Cross-Reference / Alternatives (Mahle on CPP Diesel only)
- MAHLE GS33895 — 18 mm straight dowel pins (early engines)
- MAHLE 54450A — Black Diamond™ head gasket (18 mm)
- MAHLE 54579A — Black Diamond™ head gasket (20 mm)
- MAHLE HS54450 — Cylinder head gasket set (18 mm)
- MAHLE HS54579 — Cylinder head gasket set (20 mm)
Helpful Notes
Always verify dowel size before ordering (many trucks near the mid-2006 changeover differ). Install on clean bores and follow Ford service procedures when setting cylinder heads.
FAQ
Why do I need stepped dowels on a 6.0L?
They correctly align the cylinder head when one component uses 18 mm and the other uses 20 mm dowels—critical for clamp load and MLS gasket sealing.
How many dowel pins are included?
(2) stepped dowels—enough for one cylinder head bank.
Will this fit all 2003–2007 trucks?
Yes, when your build requires a stepped 18→20 mm dowel. Otherwise select straight 18 mm dowels (GS33895) or use the correct 20 mm hardware.
Specifications for Mahle GS33593
| Attribute | Value |
|---|---|
| Brand | MAHLE |
| Part Number | GS33593 |
| Dowel Size | Stepped 18 mm → 20 mm |
| Engine Compatibility | 2003–2007 Ford 6.0L Power Stroke (VT365) |
| UPC | 027067860323 |
| GTIN | 027067860323 |
| Quantity | (2) stepped dowel pins (one bank) |
| 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 |
