Installing a JOES Expansion Tank will help keep your engine cool!. A 1/4" NPT fitting is welded in at the top for an air bleed line, a 1/2" pipe fitting for a line to your water pump is near the bottom and an 1/8" fitting for water overflow is provided in the 6061-T6 billet aluminum filler cap housing. 1-3/4" tube mount.
