This is a genuine STIGA 1134305301 tension pulley, designed for use in a wide range of STIGA PARK series ride-on mowers. Essential for maintaining correct belt tension, this pulley ensures efficient power transmission and smooth operation of your mower's deck or drive system. With an outer diameter of 100 mm, an inner bore diameter of 17 mm, and a height of 20 mm, this durable component is built to OEM specifications for reliable performance and a perfect fit. Weighing 0.18 kg, it's a critical part for the longevity and functionality of your STIGA equipment.