TC Bros Aluminum Filler Cap for Oil Tanks (unvented).
Standard 1 5/16" - 12 Thread Fits Many Chopper Oil Tanks such as Mooneyes.
CNC Machined From 6061 Billet Aluminum. 'Knurled' For Extra Grip. Leak Free O-Ring Seal. Dome top contour for classic looks.
100% Made In USA