Peterbilt Locking Gas Caps & Anti-Siphon Valves

Peterbilt 4" Locking Replacement Fuel Cap *If Ordering More Than 1 Fuel Cap, Please Specify Key Style Above Locking Fuel Cap Fits Peterbilt Trucks Made of Heavy Duty Aluminum This Cap is Not Vented; Please Call Us if You Need a Vented Cap 8"...

Heavy Duty Peterbilt Locking Fuel Cap Cover Heavy Duty Peterbilt Locking Fuel Cap Cover Locks Over Existing Fuel Cap Rotates Freely When Closed Fits the Following Peterbilt Trucks: 330: (1995 - 2010) 335: (1995 - 2010) 337: (2011 -...

Heavy Duty Locking DEF Cap For Semi Trucks *Images included for reference only, components may vary based on your application. *Keyed alike options available, give us a call to make a custom order! This locking DEF cap is the perfect way to keep...

Peterbilt Leak Defender Fuel Cap and Anti-Siphon The Leak Defender is a fuel neck attachment system that stops leaking fuel caps on Peterbilt trucks! Leak Defender Fuel Cap and Collar Available with an Anti-Siphon Upgrade Creates a Brand New...

Peterbilt Lock on Fuel Cap Cover Made Of Polished Aluminum Sold As A Pair 4 Keys Are Included Does Not Fit Doorstep Fuel Tank Models Covers Your (OEM) Factory Fuel Cap Lock-On Guard specializes in providing a guard that covers your (OEM)...

Peterbilt 4" Non-Locking Replacement Fuel Cap *If Ordering More Than 1 Fuel Cap, Please Specify Key Style Above Non-Locking Fuel Cap Fits Peterbilt Trucks Made of Heavy Duty Aluminum This Cap is Not Vented; Please Call Us if You Need a Vented...

Peterbilt 4" Vented Locking Fuel Cap *Please verify your OEM number(s) before purchasing. Locking Vented Peterbilt Fuel Cap Fits Most Peterbilt Models Locks Available Keyed Differently or Alike (Choose Option Above) Direct Aftermarket...