From the company that has been "Driven by Performance" for nearly a century, comes a new brand focusing exclusively on PERFORMANCE: MAHLE Performance

MAHLE Performance engineers work with the top racing teams from NHRA, IHRA, Formula Drift and Formula 1 to bring you only the very best engine components featuring the latest, cutting-edge technologies to meet all of your performance needs.

From custom performance race engines to classic cruisers; from drag racers to off road and marine applications, MAHLE Performance has you covered. MAHLE is the only name trusted for decades by the top players in the industry to perform in the harshest and most demanding of environments.

If you want the very best out of your performance vehicle, put the very best into your engine with MAHLE Performance gaskets, engine bearings and piston rings.

• Manufacturer's Part Number : 197843642
• Component Type : Piston (set)
• Engine Make : BMW
• Engine Family : S65
• Cubic Inches : 4.0L
• Bore [inches] : 3.642
• Stroke : 75.2mm
• Rod : 140.7mm
• Compression Ratio : 12.3:1
• Compression Height : 27.3mm
• Piston
  • Piston Style : Dome, w/ 2 valve reliefs
  • Piston Mass : 372g
  • Piston Material : Forged, 4032
  • Pin Diameter [inches] : 0.827
    • In millimeters : 21.0mm
• Pin
  • Pin Length [inches] : 2.287
  • Pin Wall Thickness : 0.207
  • Pin Material : Steel
  • Pin Mass : 117g
  • Pin Style : Floating
    • Pins Included : Yes
  • Clip Style : Round Wire
    • Clips Included : Yes
• Piston Ring
  • Piston Ring Thickness : 1.2mm, 1.2mm, 2.5mm
    • Rings Included : Yes
    • File Fit : No
  • UCR Thickness : 1.2mm
    • UCR Material : Stainless Steel
    • UCR Coating : Gas Nitrided
  • LCR Thickness : 1.2mm
    • LCR Material : Cast Iron
    • LCR Coating : Phosphate
  • OCR Thickness : 2.5mm
    • OCR Material : Chrome plated stainless steel
    • OCR Tension : Standard
• Additional Notes : Coatings: Phosphate + Ferroprint (Al bores) + Hard Anodized top ring groove