This aftermarket replacement idler pulley, compatible with John Deere part number AM38171, is engineered to provide reliable performance for your lawn and garden equipment. Designed as a direct fit for various John Deere 110, 112, 200, 208, 210, 212, 214, and 216 series lawn tractors, this non-OEM alternative ensures smooth operation of your drive belt system. The pulley features an outer diameter of approximately 114.3mm (4.5 inches), an inner bore diameter of 9.5mm (0.375 inches), and a width of approximately 21mm (0.828 inches). These precise dimensions ensure proper belt alignment and tension, crucial for efficient power transmission and extended belt life. Constructed from durable materials, this replacement idler pulley is built to withstand the demanding conditions of outdoor machinery, offering a cost-effective solution without compromising on essential functionality. It plays a vital role in guiding and maintaining tension on the drive belts, preventing slippage and ensuring consistent power delivery to your mower deck or other attachments. Upgrade your equipment with this high-quality aftermarket AM38171 pulley for dependable performance.