Product Description
MAHLE S42168.040 is an OE-quality .040” (1.00 mm) oversize piston ring set engineered for 2011–2017 Ford 6.7L Power Stroke rebuilds. Premium materials (upper: carbon steel plasma-moly, second: ductile iron, oil ring: stainless with gas nitride) deliver factory-level sealing and durability. Sold per cylinder—order 8 sets for a complete engine. GTIN: 027067875976.
- Application: Ford 6.7L Power Stroke V8 diesel (Scorpion)
- Size: .040” oversize (1.00 mm)
- Construction: UCR carbon steel plasma-moly top ring / LCR ductile iron second / OCR stainless oil ring (gas-nitrided)
- Meets or exceeds OEM specifications
- Emissions: 50-state legal replacement part
Fitment
- 2011, 2012, 2013, 2014, 2015, 2016, 2017 Ford F-250 / F-350 / F-450 / F-550 Super Duty with 6.7L Power Stroke
Cross Reference / IDs
- MAHLE: S42168.040 (single-cylinder set)
- UPC/GTIN: 027067875976
- Engine family: 6.7L Power Stroke (VIN “T”)
What’s Included
Complete single-cylinder ring pack for .040” over pistons. For a full engine you’ll need quantity 8.
FAQ
Is this a complete engine set?
No—this is sold per cylinder. Order 8 for a full V8 engine.
Will .040” fit my engine?
Only if your pistons/cylinders are machined to .040” oversize (1.00 mm). Verify piston size before ordering.
What ring materials are used?
Top: carbon steel with plasma-moly face, second: ductile iron, oil ring: stainless with gas-nitride—optimized for heat and sealing.
Does this work on 2015–2017 trucks?
Yes—fits 2011–2017 6.7L Power Stroke across F-250/350/450/550 when using .040” over pistons.
