Product Description
MAHLE 224-3666WR-0.50MM piston kit with rings for the 2008–2010 Ford 6.4L Power Stroke (VIN R). This +0.50 mm (.020") oversize set features coated skirts for reduced friction, OE-style bowl design for clean combustion, and a factory-matched ring pack for reliable sealing under heavy load and towing.
Fitment
- 2008, 2009, 2010 Ford F-250 / F-350 / F-450 / F-550 Super Duty with 6.4L Power Stroke (VIN R)
- Oversize: +0.50 mm (.020") • Bore ≈ 3.885"
- Sold as a complete set of 8 pistons with rings, pins, and retainers
Cross-Reference / Alternatives (Mahle on CPP Diesel)
- Standard bore: MAHLE 224-3666WR (STD)
- +0.25 mm (.010"): MAHLE 224-3666WR-0.25MM
- +0.75 mm (.030"): MAHLE 224-3666WR-0.75MM
- Matching +.020" ring set: MAHLE S42097.020
Specifications for Mahle 224-3666WR-0.50MM
| Attribute | Value |
|---|---|
| Brand | MAHLE |
| Part Number | 224-3666WR-0.50MM |
| UPC | 027067927408 |
| GTIN | 00027067927408 |
| Set Size | 8 pistons with rings, pins & retainers |
| Oversize / Bore | +.50 mm (.020") / ≈3.885" |
| Skirt | Graphite/moly coated |
| Engine Compatibility | 2008–2010 Ford 6.4L Power Stroke (VIN R) |
| Shipping | Free Shipping (standard ground) |
| 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. |
FAQ
Is the price for a full engine set?
Yes—this kit is sold as a complete set of 8 pistons with rings, pins, and retainers.
What overbore size does this correspond to?
+0.50 mm (.020"), with a finished bore of approximately 3.885" when honed to spec.
Are the piston skirts coated?
Yes—MAHLE applies a friction-reducing skirt coating to support durability and quiet operation.
Which trucks does this fit?
2008–2010 Ford Super Duty models equipped with the 6.4L Power Stroke (VIN R).
