The Hako 28174 tension pulley is an original equipment manufacturer (OEM) part specifically designed for various Hako cleaning machines, including models from the Hakomatic B and Hako-Jonas series. This critical component plays a vital role in maintaining the correct tension of drive belts, which is essential for the efficient and reliable operation of the machine's systems. With an outer diameter of 60mm, an inner diameter of 10mm, and a width of 20mm, this pulley ensures precise fitment and optimal performance, preventing belt slippage and premature wear.