MAHLE 030 41 01 Engine Piston for Volkswagen 1.9L TDI

The MAHLE 030 41 01 is a precision-engineered replacement engine piston designed specifically for Volkswagen 1.9L TDI engines with ALH and AHU engine codes produced from 1997 to 2004. This piston is manufactured to OE quality standards for cylinders 3-4 and features a 0.25mm oversize specification for engines requiring a bore repair or performance rebuild.

Key Features:

• OE-quality cast aluminum construction for durability and heat dissipation
• Precision-machined with shallow valve pockets for direct injection applications
• Offset ring grooves ensure proper ring loading and superior oil control
• Expansion-controlled design provides tight piston-to-wall clearances to reduce engine noise and wear
• 0.25mm oversize specification for cylinders 3-4
• Compatible with forged steel connecting rods and 79.5mm standard bore engines

MAHLE is one of the world's largest OE piston manufacturers, producing over 100,000 parts for automotive applications. This piston is engineered to meet the demanding requirements of turbocharged diesel engines, providing excellent compression sealing and long service life. Designed for use in Volkswagen Golf, Jetta, Passat, and New Beetle TDI models equipped with the renowned 1.9L ALH/AHU diesel engine.

Application Note: This piston is specifically designed for cylinders 3-4 in 1997-2004 Volkswagen 1.9L ALH/AHU TDI engines. When replacing pistons, always measure piston protrusion at top dead center to ensure proper head gasket selection and compression ratio.