This Cummins flywheel 3936822 for engine QSB5.9 6BT5.9 4B3.9 6B5.9 ISB6.7 ISL9 QSB6.7 is an industrial replacement part manufactured by Cummins. It fills a specific mechanical or electrical role within the system it's installed in. It is commonly in industrial machinery, manufacturing equipment, and maintenance/repair operations.
