Description:Flange part # 6L-6367 is used to retain the roller bearings to the output shaft in the gear group on certain 3306/3406 Marine Engines. Attributes:• Seal Shoulder Diameter: 101.6 mm (4.00 in)• Bearing Shoulder Diameter: 82.55 mm (3.25 in)• Bore Diameter: 57.9 mm (2.28 in)• Flange Diameter: 184.15 mm (7.25 in)• Flange Thickness: 15.7 mm (0.62 in)• Length: 101.1 mm (3.98 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.