MAHLE 224-3674.040 Piston for Cummins 5.9L Diesel Engine .040 Oversize

The MAHLE 224-3674.040 is a precision-engineered replacement piston designed specifically for 2003-2004 Cummins B 5.9L diesel engines with VIN code 6. This piston features a .040 inch oversize bore dimension, making it ideal for engine rebuilds where cylinder boring is required to restore proper clearances and compression.

Key Specifications:

• Compression ratio: 16.3:1 for non-HO (High Output) applications
• Bore size: Standard + .040 inch oversize
• Compatible with Cummins B series 5.9L engines (VIN 6, engine code ISB)
• Year range: 2003-2004 model years
• Application: Non-High Output diesel engines

Features and Benefits:

• Manufactured by MAHLE, a leading OEM supplier known for precision engine components
• Engineered to restore factory compression and performance specifications
• Precision-machined aluminum alloy construction for optimal strength-to-weight ratio
• Designed for professional engine rebuilding applications
• Matches original equipment specifications for proper fit and function

This piston is intended for use during complete engine overhauls where cylinder boring is performed. Professional installation is recommended to ensure proper piston-to-wall clearances and ring gap specifications are maintained.