Billet Air Bleeder Screw for GM 2001-2016 Duramax Diesel Fuel Filter Housing CNC machined from solid billet 6061-T6 aluminum and anodized red for strength and corrosion protection No more stripping of cheap plastic bleeder screw that can break with routine servicing over a vehicle lifetime Easy replacement in seconds Includes nitrile O-ring Replaces GM Part Numbers 97363195 & 513081000