Comments: If replacing 1001243268, drive motor, for an RT2669 or RT3369 equipped with 4WD, please order kit 1001313980. If replacing for an RT2669 or RT3369 equipped with 4WD Heavy option, please order kit 1001313981. **Machines equipped with the 4WD Heavy option will have a hydraulic oil cooler located on the tank side the machines.** If replacing for an RT4069 or RT4769, please order kit 1001313981. Once one of these kits has been installed on a particular machine, drive motors can then be replaced individually by ordering drive motor, 1001300343, as needed.