BRAND NEW FACTORY MATCHED Set of 8 MAHLE Pistons with Coated Shirts & Factory Installed Rings Included MAHLE is OEM (Original Equipment Manufacturer) for Ford FITS: All Ford 6.4L V8 Turbo DIESEL Engines 2008-2010 VIN code: R (8th character of VIN#) These Pistons fit all 6.4L diesel Applications THIS LISTING IS FOR .05mm (approx. +.020") OVER-SIZE PISTONS with Coated Skirts to Reduce Piston Slap, Side-wall Scuffing and Friction This is a complete set of 8 Pistons with Clips, Wrist Pins & Pre-Installed Premium MAHLE Rings MAHLE Pistons 1. Ni-resist top grooves to control groove wear. 2. Balanced Set of 8 for smooth engine operation. 3. The M124 Piston material (used in these pistons) is a highly evolved "Eutectic" material, for excellent strength and excellent thermal expansion properties. The Eutectic material with MAHLE's ring groove inserts make a better piston than a forged material which does not hold the insert very well. MAHLE Piston Pins 1. High strength steels to prevent pin breakage and deflection. 2. Case hardened to provide long lasting wear surfaces. MAHLE Piston Rings: 1. All 3 rings that MAHLE/CLEVITE uses on their aftermarket loaded pistons are truly unique and without a doubt are the absolute best ring-sets in the business, even better than what is supplied to OEM's like Ford and Cummins. 2. The top rings are completely unique to MAHLE CLEVITE, because they invented the process of manufacturing them. 3. The top ring (high strength steel with high velocity Moly impregnation) is an ideal mix of metals. A 3 full steps above the competitor's ductile rings. 4. The 2nd ring (middle of piston) is your second line of defense for sealing compression from the top of the piston and sealing oil from below the piston. 5. The oil ring (bottom ring) is completely unique to MAHLE CLEVITE, because they invented itMAHLE