Product Description
MAHLE 224-3851WR-0.25MM MaxxForce 7 piston with rings is an OE-grade oversize (+0.25 mm / +0.010") replacement for the 2008–2010 Ford 6.4L Powerstroke and Navistar MaxxForce 7 platforms. Built to factory specs for durability and proper sealing.
IMPORTANT PRICING NOTE: Price listed on this CPP Diesel product page is for a SET OF 8 pistons with rings (complete engine set).
- Engine: 6.4L Powerstroke (2008–2010), Navistar MaxxForce 7
- Oversize: +0.25 mm (+0.010")
- Includes: Piston, ring pack, pin, and retainers
- Construction: OE-quality design for factory performance and longevity
Fitment
- 2008, 2009, 2010 Ford F-250 / F-350 / F-450 / F-550 Super Duty with 6.4L Powerstroke
- Navistar MaxxForce 7 applications (reference years commonly 2008–2015 in medium-duty platforms)
Cross-Reference / Alternatives
- MAHLE 224-3851WR (Standard)
- MAHLE 224-3851WR-0.50MM (+0.50 mm)
- MAHLE 224-3851WR-0.75MM (+0.75 mm)
FAQ
Is this the correct piston for a 2008–2010 6.4L Powerstroke?
Yes—this 224-3851WR family fits the 6.4L Powerstroke (’08–’10) and the Navistar MaxxForce 7 platform per major diesel retailers.
What does “0.25 mm” mean?
It indicates a +0.25 mm (+0.010") oversize piston used after a rebore/hone to spec.
Does this include rings and pins?
Yes—piston, ring pack, pin, and retainers are included.
How many do I need?
A V8 engine requires eight pistons. Our price here is for a full set of 8.
