The engine is generally considered to be the heart of a vehicle. Its design requires a balance between peak performance and torque and the lowest possible consumption and emissions. Modern engines are precision work - just like every single replacement part from febi. For vehicles with timing belt drive, febi offers a comprehensive range of wear parts in OE matching quality, including tensioner pulleys. In order to counteract the elongation/shortening of the timing belt due to tensile stress and operational temperature fluctuations, correct timing belt tension is essential. This important task is performed by the tensioner pulley. Various tensioner pulleys are used in vehicles: permanently adjustable, semi-automatic, and automatic. In any case, the quality of the tensioner pulley must be perfect. Tensioner pulleys from febi are therefore intensively tested. Our quality management tests the tensioner pulleys offered for various requirements and loads, e.g. accuracy of fit, dimensional accuracy, material quality, and tensile strength. When replacing the timing belt, the surrounding components should also be checked for wear. For all parts to work together perfectly, it is extremely important that they are precise and made of high-quality materials. febi offers complete timing belt kits for certain vehicle types which contain all the individual parts required for professional replacement, e.g. the tensioner pulley.