2024 Duramax Piston. Duramax dmpb2024di piston type internal breathing disc brake chamber. All are on extended drains.

General motors announced a revised, more powerful version of the 6.6l duramax diesel for the updated 2024 model year gmc sierra and chevrolet.  — general motors has announced a customer satisfaction program (n232427750) addressing an issue with the piston oil lubrication valve in certain 2024.