Product Description
Restore sealing, quiet blow-by, and withstand work-truck heat cycles with the MAHLE 224-3851WR-0.50MM piston and ring set for the 2008–2010 6.4L Power Stroke (VIN R) and Navistar MaxxForce 7. This +0.50 mm overbore set (sold as a complete set of 8) features OE-style dish pistons with skirt coating and matched ring packs for reliable compression and oil control.
Fitment
- 2008–2010 Ford Super Duty F-250 / F-350 / F-450 – 6.4L Power Stroke (VIN R)
- Navistar / International MaxxForce 7 6.4L applications (various chassis)
Cross-Reference / Alternatives (Mahle on CPP Diesel only)
Notes
Sold and priced as a complete engine set (8 pistons with rings). Always verify bore size after machining and set ring end gaps to specification.
FAQ
Is the price for one piston or a complete set?
On CPP Diesel, this part is sold as a full set of eight pistons with rings.
Will this fit my 2008–2010 6.4L Power Stroke?
Yes—224-3851WR-0.50MM is the correct +0.50 mm oversize replacement commonly used in 2008–2010 6.4L Power Stroke (VIN R) and MaxxForce 7 engines.
Are rings included with each piston?
Yes. Each piston includes the matched ring pack (plus pin and retainers per OE-style kit).
Specifications for Mahle 224-3851WR-0.50MM
| Attribute | Value |
|---|---|
| Brand | MAHLE |
| Part Number | 224-3851WR-0.50MM |
| Oversize | +0.50 mm (approx. 3.890" nominal bore) |
| Engine Compatibility | 2008–2010 Ford 6.4L Power Stroke; Navistar MaxxForce 7 6.4L |
| UPC | 027067053138 |
| GTIN | 027067053138 |
| Shipping | Free Shipping (ground); optional shipping insurance available at checkout |
| Prop 65 | This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Learn more |
