Product Description
MAHLE 224-3666WR is the OE-grade standard-bore piston kit with rings for the 2008–2010 Ford 6.4L Power Stroke (VIN “R”). Built for quiet operation and durability, these aluminum pistons feature coated skirts and a factory-matched RFK13PF ring pack for rapid seating and tight oil control—perfect for stock or tow-tuned Super Duty builds.
Fitment
- 2008, 2009, 2010 Ford Super Duty F-250 / F-350 / F-450 / F-550 with 6.4L Power Stroke (VIN “R”)
- Bore size: Standard (STD)
- Sold as: Set of 8 pistons with rings, wrist pins & retainers (as supplied by MAHLE)
Cross-Reference / Alternatives (MAHLE on CPP Diesel only)
- Oversize +0.25 mm: MAHLE 224-3666WR-0.25MM
- Oversize +0.50 mm (.020"): MAHLE 224-3666WR-0.50MM
- Oversize +0.75 mm: MAHLE 224-3666WR-0.75MM
- Matching ring set (STD): MAHLE S42097
- Matching ring set (+.020): MAHLE S42097.020
Specifications for Mahle 224-3666WR
| Attribute | Value |
|---|---|
| Brand | MAHLE Original |
| Part Number | 224-3666WR (STD) |
| UPC | 027067927392 |
| GTIN | 00027067927392 |
| Engine | Ford 6.4L Power Stroke V8 (VIN “R”) |
| Bore Size | Standard (STD) |
| Ring Pack | RFK13PF (matched) |
| Includes | (8) pistons, rings, pins & retainers |
| Shipping | Free Ground Shipping (shown 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. |
FAQ
Is the price per piston or for a full set?
This CPP Diesel listing is for a complete set of 8 pistons with rings.
Do these fit all 2008–2010 6.4L trucks?
Yes—fits 2008–2010 Ford Super Duty with 6.4L Power Stroke (VIN “R”). Always verify engine VIN and cylinder condition before ordering.
Are rings and pins included?
Yes. Each piston includes a matched RFK13PF ring set plus wrist pins and retainers.
What if my cylinders need an overbore?
Choose the corresponding MAHLE oversize sets linked above in +0.25 mm, +0.50 mm (.020"), or +0.75 mm.
