MAHLE S42163 Chrome Piston Ring Set 114mm Bore for Cummins ISC 8.3L ISL 8.9L

The MAHLE S42163 is a premium chrome piston ring set engineered for Cummins ISC 8.3L and ISL 8.9L diesel engines. This OE-quality ring set features a 114mm (4.490 inch) bore diameter and is designed to meet or exceed original equipment specifications.

Key Features:

• Chrome-faced top compression ring for superior wear resistance and durability
• Precision-engineered 114mm (4.490") bore diameter for exact OE fitment
• Direct replacement for Cummins OE part number 4089644
• Designed specifically for ISC 8.3L and ISL 8.9L diesel engines
• Complete ring set includes compression and oil control rings
• MAHLE OE quality manufacturing standards

MAHLE is a globally recognized OE supplier known for producing high-quality engine components. This chrome ring set delivers reliable sealing, optimal compression, and effective oil control for extended engine life. The chrome facing on the compression ring provides exceptional resistance to combustion gases and reduces cylinder wear, making it ideal for heavy-duty diesel applications.