You searched for "23-13212-121"

Lighter with a compact design, RCV250 Fully Variable Fan Drives are engineered to turn larger fans that require higher torque. The RCV250 is an integrated belt-driven fan drive that can be mounted in various locations to eliminate the vibration inherent in traditional driveshaft-mounted fan drives.

Warning: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov