aFe Pro Series rear differential cover for Ford diesel trucks with 6.7L V8 (Dana M300-14) — fits 2017–2023 models — replaces the factory cover with a reinforced A356-T6 cast aluminum housing. It includes machined cooling fins, magnetic drain and deep-fill plugs, a large oil level sight glass with calibration plug, mounting hardware and six quarts of Pro GUARD D2 synthetic gear oil to increase protection and cooling capacity.
aFe Power Rear Diff Cover Black w/Machined Fins 17-19 Ford 6.7L (td) Dana M300-14 (Dually) w/ Oil