Product Description
MAHLE S42097 is the standard-bore (3.866"/98.2 mm) piston ring set for the 2008–2010 Ford 6.4L Power Stroke (and select Navistar MaxxForce 7 applications). OE-quality materials and profiles deliver rapid seating, low friction, and long service life. Contains rings for a single cylinder—order quantity 8 for a full engine.
- Engine: 6.4L Power Stroke V8 (OHV) diesel
- Bore size: 3.866" (STD)
- Construction: Plasma-moly top compression ring; oil ring assembly engineered for precise oil control
- GTIN/UPC: 027067850843
Fitment
- 2008, 2009, 2010 Ford F-250/F-350/F-450/F-550 Super Duty with 6.4L Power Stroke
- Also referenced for Navistar MaxxForce 7 (verify bore and piston spec before ordering)
Cross Reference / Alternatives
- MAHLE / Clevite: S42097 (STD), S42097.010, S42097.020, S42097.030 (oversizes)
- Common alt listings: “6.4L Power Stroke / MaxxForce 7 standard ring set”
What’s Included
- Rings for one piston: top ring, second ring, complete oil control assembly
FAQ
Is this a full engine set?No. This package services one cylinder. You’ll need qty 8 for a complete engine rebuild.
Will it fit all 2008–2010 6.4L trucks?Yes—these standard-bore rings are for the 6.4L Power Stroke. Always confirm bore/piston spec during machine work.
What is the bore size?Standard bore is 3.866" (98.2 mm). Oversize options (.010, .020, .030) are sold under related MAHLE numbers.
What ring materials are used?OE-quality set with a plasma-moly top ring and a chrome-faced oil control assembly for durability and low wear.
Do these maintain factory performance?Yes—designed to meet factory specifications and maintain OEM performance and emissions characteristics.
