Primary drive belt 1/2 inch x 97 inch, part M140502 Key benefits Restores reliable power transfer to mower deck and transmission so cutting and drive systems operate smoothly. Exact fit dimensions 1/2 inch wide by 97 inch long for straightforward replacement of the original primary belt M140502. Designed for consistent tension and reduced stretching to minimize slippage and extend service intervals. Simple swapin replacement that gets your tractor back to work quickly with minimal downtime. Compatible with a common lawn and garden tractor model to simplify parts selection and avoid fitment guesswork. What this belt does This primary drive belt replaces the belt identified by part number M140502 and is sized 1/2 inch by 97 inch. It transfers engine power to the transmission and mower deck pulleys, maintaining proper belt tension and alignment during normal mowing and transport. The belt is built to meet the dimensional and functional needs of the original design for dependable operation. Compatibility Compatible with John Deere GX355 lawn and garden tractor (use part number M140502 for confirmation). Practical applications Routine belt replacement during seasonal maintenance to restore cutting performance and eliminate slipping or squealing. after belt failure caused by wear, cracking, or stretching to the tractor to service the same day. Use when upgrading to a belt during engine or transmission servicing to ensure correct routing and tension. Installation notes Verify the part number M140502 and the belt length of 97 inch before installation. Follow the tractor manufacturers belt routing diagram and torque specifications when reinstalling pulleys and tensioners. Inspect pulleys, idlers, and tensioner components while replacing the belt to prevent premature wear on the belt. Technical details Type: Primary drive belt Width: 1/2 inch Length: 97 inch Part number: M140502 Intended use: Primary drive for lawn and garden tractor power transmission and mower deck drive This belt provides a directfit replacement option to restore original function and keep your tractor operating as expected.