SKF Hydraulic tensioners utilize a pressuring mechanism that dampens timing belt vibrations. Each tensioner delivers ideal tension to the timing belt by automatically adjusting to engine speed and vibration. When timing belt service is performed, mechanics recommend the hydraulic tensioner is also replaced so that the repair is done right and will avoid costly come backs. For more than 100 years, the world's engineers, technicians and mechanics have turned to SKF for the best possible solutions. Available for a wide range of applications and needs, SKF products are designed and manufactured to the highest quality standards, ensuring long life and safety.