Engine Balance Shaft Chain TensionerA timing chain tensioner maintains appropriate tension in the timing chain. Depending on design, tensioners can use spring tension or hydraulic pressure to properly tension the chain. Please refer to our online catalog for detailed applicatBal. Shaft TensionerTensioner, Balance Shaft ChainRecommended that the chain tensioner(s), sprocket(s), and guide(s) also be replaced when the chain is replaced, as these components play a vital role in system stability and accurate timing; CAD designed and manufactured using premium materials; Each part is extensively tested and measured for function, fitment, and durability to ensure optimal performance; Meet or exceed OEM performance requirements; Utilizes the latest in design and material technology, ensuring a quiet and maintenance-free experienceBal. Shaft Tensioner