Description
6.0L Powerstroke Loaded OEM O-Ringed Cylinder Head – 18mm Dowels (2003–2005)
Part #: PP-18MMLOEM-O
Upgrade your top end for boosted power and enhanced reliability with the Powerstroke Products Loaded OEM O-Ringed Cylinder Head for 2003–2005 Ford 6.0L Powerstroke trucks. Built from a brand-new casting, this head is precision-machined for O-rings to help improve head gasket sealing by keeping combustion pressure in the cylinder—and out of the cooling system.
Ideal for mild performance upgrades or towing builds, this head comes fully assembled with new valves, springs, and seals, and is designed for 18mm dowel engines. No core required.
✅ Features:
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Fits 18mm dowel 6.0L Powerstroke engines
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Brand-new casting – no remanufactured components or core exchange
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O-ringed sealing surface – improved combustion sealing under load
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Fully assembled with new valves, springs, and seals
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Direct OEM replacement with upgraded sealing capability
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1-Year / Unlimited Mileage Warranty
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Sold individually
🔧 Fitment:
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Fits 2003–2005 Ford F-250, F-350, F-450, and Excursion models with 6.0L Powerstroke
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Please confirm dowel size before ordering
⚠️ Notes:
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Use MLS head gasket only with O-ringed heads
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Hot re-torque required to maintain warranty
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Head studs sold separately – full line in stock
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Not available for sale or use in the state of California
The PP-18MMLOEM-O Loaded O-Ringed Head is the ideal upgrade for 6.0L Powerstroke owners who want OEM reliability with enhanced sealing strength for performance or heavy-duty use.
