24V 150A 1012109010/2721889 DENSO car alternator for CATERPILLAR engine C7, C9(L-B+)

This 24V 150A 1012109010/2721889 DENSO car alternator for CATERPILLAR engine C7, C9(L-B+) is engineered to deliver consistent performance for CATERPILLAR C7 and C9 (L-B+) engines, operating at a rated voltage of 24V DC with a continuous output current of 150A—ideal for meeting the electrical demands of commercial and heavy-duty vehicles.

Built with DENSO’s renowned reliability, it features an internal voltage regulator that ensures stable power output, protecting sensitive electrical components from voltage fluctuations. This integrated design simplifies installation and reduces the need for external adjustments, making it a practical replacement for aging or faulty alternators.

Key specifications enhance its compatibility and functionality: the shaft size measures Ø22.2mm, ensuring a secure fit with corresponding pulleys. The pulley/grooves configuration—Ø80mm diameter with 10PK grooves—aligns with the belt systems of CATERPILLAR C7 and C9 engines, minimizing belt slippage and ensuring efficient power transfer.

Mounting is straightforward, thanks to a pivoting/adjustable mount with a 230mm span. The adjustment holes have a diameter of Ø12.5mm (two holes), allowing for precise positioning, while the pivot holes measure Ø10.5mm (two holes) for secure attachment. The +B output terminal is an M8 size, compatible with standard wiring setups.

As a direct replacement for part numbers 1012109010 and 2721889, this alternator ensures seamless integration into existing electrical systems, reducing downtime during maintenance or upgrades. It is designed to withstand the rigors of heavy-duty operation, offering durability and long-term reliability without requiring frequent maintenance.

Whether replacing a worn alternator or upgrading the electrical system of a CATERPILLAR C7 or C9 (L-B+) engine-equipped vehicle, this DENSO alternator provides the power, stability, and compatibility needed for consistent performance.

ZKM86149 Common Application: CATERPILLAR engine C7,C9 (L-B+)