The brand new and high quality tension wheel prevents belt slippage, compensates for the wear and elongation of the belt after aging. The noise is low and can prevent slippage. Advantages - According to the tightness degree of the belt, the tension can be adjusted automatically to make the transmission system stable, safe and reliable. Belt, the tension can be adjusted automatically, to make the. Only the best steels are used. Use only the best rubber materials. Easy to install, but professional installation is highly recommended. Item Type: Belt Tensioner Idler Pulley Part No: 11281748131 Weight [kg]: 0.15 Height [mm]: 24.5 Inner Diameter [mm]: 10 Outer Diameter [mm]: 70 INTERCHANGE PART NUMBERS: 11 28 1 726 343 / 11281726343,11281748131 / 11 28 1 748 131 Manufacturer Part Number: 5320001100/11281748131 FOR: E46 325 330 E39 528 530 E53 X5 FITS: 1992-1992 318I BASE CONVERTIBLE 2-DOOR 1992-1999 318IS BASE COUPE 2-DOOR 1995-1999 318TI BASE HATCHBACK 2-DOOR 1992-1995 320I BASE SEDAN