MAHLE 197859522 PowerPak Forged Piston Kit BMW S85 5.0L V10 92mm Bore

The MAHLE 197859522 PowerPak is a complete forged piston kit designed for BMW S85 B50 5.0L V10 engines found in E60 M5 and E63 M6 models. This high-performance piston set replaces factory cast aluminum pistons with forged construction for superior strength and durability in demanding applications.

Key Specifications:

• Bore: 92.00mm
• Stroke: 75.2mm
• Rod Length: 140.7mm
• Compression Height: 27.3mm
• Crown Volume: 2.1cc dome
• Pin Diameter: 21mm (20mm wrist pin included)
• Piston Weight: 366 grams
• Compression Ratio: 10.1:1 to 10.3:1

Premium Features:

• Forged from M142 low-expansion aluminum alloy for high strength and reduced piston-to-wall clearance
• Anti-friction skirt coating for reduced drag and improved efficiency
• CNC precision-machined pin bores for optimal tolerances
• Forced pin oiler design for increased wrist pin lubrication
• Performance piston ring set included (1.0mm, 1.2mm, 2.8mm rings)
• Steel nitrided top ring for maximum durability
• High-quality steel wrist pins and race-proven round wire locks included

This complete drop-in piston assembly is engineered by MAHLE Motorsports with over 80 years of piston manufacturing expertise, from OEM applications to Formula 1 racing. The kit provides everything needed for installation except for ring filing. Ideal for engine rebuilds, performance upgrades, and motorsport applications requiring enhanced reliability under extreme heat, detonation, and pressure conditions.