Our latest Billet Aluminum Oil Cooler comes with a functional liquid-filled Temperature Gauge and #6 AN style fittings. Originally designed for Harley-Davidson EVO motors, but can be adapted to TC-88 motors too. Oil lines sold separately. CNC machined from Billet Aluminum and Black Anodized. Includes our Billet Clamp to fit a 1-1/2 Inch Frame Tube. Length is 8-3/4"". Diameter is 2-1/4"".