One-Piece Lower Chain Tensioner Update Kits

Our One-Piece Tensioner Kits will replace the original 2-piece lower chain tensioner with the style that was originally developed for the E36 M3 S50 motor . This improved tensioner is a single-piece assembly that utilizes a double-piston design with a stronger spring than the original. Switching to this unit is especially advised if you are experiencing increased timing chain rattle on startup or deceleration - a common problem on high-mileage vehicles. Available for early and late model applications.

For more information about this procedure, check out our Technical Article on BMW Lower Chain Tensioner Replacement.