4BT Billet Aluminum Side Cover with Breather - High Performance Engine Upgrade for Cummins 4BT Diesel Trucks & Off-Road Vehicles

Our billet aluminum tappet cover replaces your stock prone to leak tappet cover. Our tappet cover goes away from the rubber gasket and seals to the block with RTV. We also supply a new style breather and all the hardware to install. This tappet cover not only works better than factory but is a nice engine dress up piece as well.