John Deere M127926 Secondary Deck Drive Belt is a reliable and durable part designed to power the lawn mower blades efficiently. Also known as a Synchronous or Timing Drive Belt, this secondary deck drive belt works in conjunction with a primary deck drive belt (M128733, sold separately) that transfers power from the engine. Crafted from strong materials, John Deere belts are engineered to prevent stretching and rolling over, ensuring smooth engagement and consistent power delivery. This belt is a John Deere equipment manufacturer (OEM) part, ing quality and compatibility. For assistance in finding the right John Deere part or accessory, John Deere specialists are available Monday through Friday from 8:00 AM to 5:00 PM (EST) by phone or email. Hartville Hardware strives to provide accurate part recommendations based on reliable information, but customers are encouraged to verify compatibility as manufacturer specifications may change without notice. Model Number: M127926