Description Standard Neck Radiator Cap 16 lbs Replaces Gates: 31523. Radiator pressure caps are constructed of corrosion-resistant, heavy-gauge metal. This assures long service life and accurate control of pressure. Cap Depth (IN) 1.25 Coolant Recovery System Optional System Filler Neck Depth (IN) .75 Filler Neck Depth (MM) 19 Filler Neck Inside Diameter (IN) 1.61 Filler Neck Inside Diameter (MM) 41 Filler Neck Outside Diameter (IN) 2.13 Filler Neck Outside Diameter (MM) 54 Shell Outside Diameter (in) 2.33 Type Standard Vented Cap
