Cummins
Alternator pulley for Cummins
This alternator pulley facilitates the transfer of rotational power from the engine crankshaft to the alternator via the drive belt. It is designed for use in various Cummins engine applications.
Specifications
- Part number
- 3179935
- Brand
- Cummins
The alternator pulley 3179935 serves as a mechanical interface within the engine charging system. It receives rotational energy from the engine crankshaft through a drive belt and transfers this power to the alternator, which then converts the mechanical energy into electrical power to charge the battery and supply the electrical systems while the engine is running.
This component is compatible with a range of Cummins engines used in industrial machinery and heavy equipment. The pulley is manufactured to meet the specifications required for consistent power transmission within the charging system. It is designed to withstand the rotational speeds and belt tension typical of these engine configurations.
An alternator pulley acts as the driven member in the accessory drive system. By maintaining a constant drive ratio, it ensures the alternator rotates at the correct speed to generate the required voltage for the machine electrical systems. Proper alignment and surface condition of the pulley are necessary to maintain belt integrity and prevent slippage during operation.

