Thermostat Spacer for Coolant Bypass - E.D Billet Black Anodized - 24v Cummins 5.9L & 6.7L 1998.5 - Present Billet Aluminum Anodized black Fits 24v Cummins 5.9L & 6.7L 1998.5 - Present Tapped to 1/2" NPT Bolts & O-ring included