Motor 252596-002 for 240 volt 50 Hz for 707 series, including the 707SM, 707TW, 707U, and 707 models. Genuine Trion. Motor body measures 3-3/8 diameter by 2-3/4 inches. Motor shaft 1/4" dia, 1-7/8" length. Electrical 240 vac, 50 Hz, 0.23 Amp. Can be used to convert 120v 707's to 240 volt. This motor is available in 120 volt: 30-310A. The motor cover 252413-001 is not included. See the instructions for installing the impeller with a 1/16" gap: Trion Impeller Installation (1 page, 70k pdf)