This Febi Bilstein Aux Belt Tensioner is designed for optimal performance and durability. It is OE Matching Quality, ensuring it meets or exceeds original equipment standards. The part number for this tensioner is 36203. Febi Bilstein offers a wide range of spare parts for various car and commercial vehicles, including a special 'febi plus' product range. This ensures compatibility and quality for your vehicle's needs. Always check that this product is correct for your vehicle before purchase. Quantity included is 1 unit. The tensioner has an outer diameter of 65 mm, operates automatically, and its housing is made of aluminium. The track rollers are made of plastic, and the width of the castor bearing surface is 24 mm. Please note that products are usually supplied without fitting instructions and should be installed by a competent individual.