They are also completely phosphate coated plus feature an anti-friction Grafal skirt coating.
Mahle Piston Rings Set (Premium Chrome/Ceramic Top Ring Upgrade) Three Piston Bore Size upgrade to choose from, stock bore, +.040″/1.0mm Bore and +.020″/.50mm Bore.
Mahle Piston for Common Rail 'Cummins B series 3.9/5.9L. Today Riken is helping its vehicle manufacturer customers develop environmentally friendly vehicles by providing a variety of piston rings that are designed and produced with advanced engineering and technology.
MAHLE Complete Piston Ring Set Features: OE Quality. These rings are made from premium materials to meet or exceed factory specifications.
They are engineered to help eliminate blow-by in large bore VW engines. Competition proven piston rings have shown their merit at Pike's Peak, the Baja-1000, and many other international events.
They are manufactured for almost all current american and foreign engines, with some model coverage as far back as 1928! The Design - Deves rings and ring sets are based on detailed engineering drawings as well as actual engines.