The ARMADA 8" chain aluminum locking diesel fuel cap for Peterbilt features aluminum construction that offers robust protection against wear and corrosion. It includes a chain attachment to prevent the loss and misplacement of the cap, maintaining accessibility. The locking mechanism is designed to enhance security, safeguarding fuel from potential theft. Its durable design withstands harsh road and weather conditions, providing reliability. Additionally, the secure, airtight seal of this fuel cap prevents contamination, maintaining fuel purity.