Description:Cat spacers are unthreaded pieces of tubing used to provide a level surface and a better fit between mating components. Tested for your rugged work environment. Attributes:• 3.2 mm thick spacer• 26.8 mm outside diameter• 21.6 mm inside diameter• DurableApplication:Used in fuel injector assemblies. Consult your owner’s manual or contact your local Cat Dealer for more information.