Bud and Tony’s Truck Parts launched a series of Patented Heavy Duty Truck Locking Fuel Cap Covers. The Patented Heavy Duty Truck Locking Fuel Cap Covers line applies to: Freightliner, Sterling, and Western Star No. BT-FLNR-35; Kenworth, International, Mack, and Volvo No. BT-KWHD-350005; Peterbilt No. BT-PBTL-0001; and Universal Medium Truck No. BT-UNIV-20000-10. The locking fuel cap covers protect against fuel theft and contamination. The covers fit over the existing fuel cap and features a built-in lock with a shiny plated finish. Three keys are included. The covers may be transferred between vehicles. Designed with a built-in “spring open” mechanism made from Zamak5 Zinc Alloy, the cap cover spins freely when locked.