Gates Oil Filler Cap - 31120 Part #: 31120 Line: GAT Gates Oil Filler Cap 1 Year Limited Warranty Color: Black, Silver Material: Plastic, Rubber, Steel Height (mm): 22mm Outside Diameter (in): 2-3/8 Inch Attachment Method: Twist-On Gasket Or Seal Included: Yes Neck/Thread Depth (in): 1-7/16 Inch Neck/Thread Diameter (in): 1-1/8 Inch Show More Show Less