MAHLE 503 PI 00100 000 Engine Piston for Porsche 997 3.8L

The MAHLE 503 PI 00100 000 is a precision-engineered OE replacement piston designed for Porsche 997 3.8 Carrera S and 4S models with the M97.01 engine. As one of the world's largest OE piston manufacturers, MAHLE delivers exceptional quality with tight tolerances and original equipment specifications.

Key Specifications:

• Cylinder bore: 99.0mm
• Compression height: 32.95mm
• Piston pin diameter: 22.0mm
• Pin length: 58.0mm
• Bowl depth: 2.7mm
• Bowl diameter: 71.76mm
• Fire land height: 8mm
• Valve pocket depths: 5.97mm (both intake and exhaust)
• Piston clearance: 0.06mm
• Without cooling duct design

Features and Benefits:

• Precision machined to OE tolerances for perfect form, fit, and function
• Lightweight design reduces reciprocating mass while maintaining reliability
• GRAFAL (graphite-impregnated resin) anti-friction skirt coating reduces drag, scuffing, and cylinder wear
• Compensated ring grooves ensure proper ring loading and superior oil control
• Expansion-controlled design allows tighter fitting clearances for reduced noise and emissions
• Ready for installation with mounted piston rings (1.2mm x 1.5mm x 2.0mm)
• Includes piston pin and retaining clips for complete convenience

This piston cross-references to Porsche OEM part numbers 99710303030, 99710303031, and 99710313028. Manufactured in Germany using state-of-the-art engineering methods and high-quality materials. Weight: approximately 410 grams per piston.