Reseal the cylinders and keep oil under control with the MAHLE piston ring set S42168, a direct-fit replacement for the 2011-2016 Ford F-250, F-350, F-450 and F-550 Super Duty and the 2016 Ford F-650 and F-750, all with the V8-6.7L. Each set carries the compression and oil-control rings for one piston, sealing combustion pressure above the piston while wiping excess oil from the cylinder wall.
- Plasma-Moly face coating: the ring face is finished with a Plasma-Moly coating.
- Bore diameter: 3.8976 in, sized for the V8-6.7L bore.
- MAHLE ring technology: designed to reduce friction and ring mass while helping minimize engine oil consumption for longer service life.
- Premium grade, made in the United States.
A piston ring set is a common wear/reseal item during an engine rebuild or when symptoms like excess oil consumption or blow-by suggest the rings may be worn. This listing is for one set (one piston); the V8-6.7L Super Duty applications are listed at a quantity of 8, so order the number of sets your engine requires. Consult the vehicle service information for the correct ring gap and installation procedure.
Frequently Asked Questions
What is the MAHLE piston ring set S42168?
It's a MAHLE piston ring set for one cylinder — the compression rings and oil-control ring that seal the combustion chamber and manage oil on the cylinder wall.
What vehicles does the S42168 fit?
It's a direct-fit replacement for the 2011-2016 Ford F-250, F-350, F-450 and F-550 Super Duty and the 2016 Ford F-650 and F-750, all with the V8-6.7L. Check the Buyer's Guide tab to confirm your engine.
How many MAHLE ring sets do I need?
This listing is one set (one piston). The V8-6.7L Super Duty applications are listed at a quantity of 8, so order the number of sets your engine requires.
What do these MAHLE performance piston rings do?
The compression rings seal combustion pressure while the oil-control ring wipes excess oil from the cylinder wall. MAHLE designs them to reduce friction and ring mass and help minimize oil consumption.
Where is this MAHLE piston ring set made?
Country of origin: United States. It is a Premium-grade set with a Plasma-Moly face coating and a 3.8976 in bore diameter.
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