Discover the durability and precision of our Idler Pulley, designed to fit seamlessly with Cummins Engine ISX15, QSX15, and X15 series. The OE/OEM Part Number 3681587 is ensured for accuracy, matching manufacturer part numbers 3896408, 3026269, and 3681587 for a hassle-free installation experience. Crafted with robust materials, this Idler Pulley is engineered to provide reliable operation and extend the life of your engine's accessory drive system. Whether you're replacing a worn component or upgrading for enhanced performance, this pulley is an indispensable investment for your heavy-duty engine.
Idler Pulley Compatibility with Cummins Engines
The Idler Pulley part number 3681587, manufactured by Cummins, is designed to fit a variety of Cummins engines. This part is integral to the engine’s belt drive system, ensuring the proper tension and alignment of the serpentine belt. Below is a detailed overview of the engines with which this idler pulley is compatible:
ISX Series Engines
ISX CM570
ISX CM871
ISX15 CM2250
ISX15 CM2250 SN
ISX15 CM2350 X101
The ISX series engines, including the ISX CM570, ISX CM871, ISX15 CM2250, ISX15 CM2250 SN, and ISX15 CM2350 X101, are known for their robust performance and reliability. The 3681587 idler pulley is engineered to fit these engines seamlessly, ensuring efficient operation of the engine’s ancillary systems.
QSX Series Engines
QSX15 CM2250
QSX15 CM2250 ECF
QSX15 CM2350 X105
The QSX15 CM2250, QSX15 CM2250 ECF, and QSX15 CM2350 X105 engines also benefit from the 3681587 idler pulley. This part is specifically designed to maintain the correct tension and alignment of the serpentine belt, which is crucial for the proper functioning of the engine’s accessories such as the alternator, water pump, and air conditioning compressor.
X15 Series Engines
X15 CM2350 X116B
X15 CM2350 X123B
X15 CM2450 X134B