Shop Freightliner FLT Cabover Fuel Tank Caps

Get your hands on secure Freightliner FLT Cabover fuel tank caps at 4 State Trucks. With locking mechanisms for protection and tight seals to prevent leaks, our caps meet industry standards, ensuring safety and eco-friendliness. Benefit from competitive prices, reliable stock, and excellent customer service.

Freightliner FLT Cabover Fuel Tank Caps

The Freightliner FLT Cabover Fuel Tank Caps product lineup offers a wide range of high-quality solutions for securing and protecting your truck's fuel system. From locking caps to anti-siphon devices, these products are designed to prevent fuel loss and unauthorized access, ensuring your vehicle's fuel stays secure and your operations run smoothly. Key features across the product lineup include vented and non-vented options, corrosion-resistant materials like aluminum and brass, and innovative leak-preventing designs. Whether you're looking to upgrade an older truck or equip a new Freightliner cabover, this product lineup has the reliable fuel tank caps and accessories to meet your needs. With a focus on functionality, durability, and safety, these parts help safeguard your investment and keep your fleet running at its best.

Frequently Asked Questions About Freightliner FLT Cabover Fuel Tank Caps

What Freightliner FLT models and years are these fuel tank caps compatible with?

These fuel tank caps are specifically designed for Freightliner FLT cabover models from 1984 through 1991, including the FLT 64T, FLT 75, FLT 86, and FLT 120. They fit both single and dual tank configurations. Always verify your tank neck diameter before ordering - standard sizes are typically 2.5" or 3.5" depending on your specific model year and tank manufacturer.

Are these fuel caps vented or non-vented, and which type do I need?

Most Freightliner FLT cabovers require vented fuel caps to prevent vacuum lock and ensure proper fuel flow. Vented caps feature a small breather valve that allows air to enter the tank as fuel is consumed. Non-vented caps are typically only used on auxiliary tanks or specific aftermarket setups. If you're replacing an OEM cap, check for a small vent hole or valve on your original cap to determine which type you need.

What's the difference between locking and non-locking fuel caps, and are keys universal?

Locking fuel caps provide security against fuel theft and tampering, featuring a keyed cylinder mechanism. Non-locking caps use a simple twist-on design for quicker access. Keys are not universal - each manufacturer uses different key codes. When ordering locking caps, you can often request matching keys if purchasing multiple caps, or specify if you need them keyed alike to existing caps on your truck.

How do I know if my fuel cap needs replacement, and what are common failure signs?

Replace your fuel cap if you notice fuel odors around the tank area, see the check engine light related to EVAP codes, experience difficulty removing or installing the cap, or observe visible cracks in the rubber gasket. A worn gasket can cause fuel vapors to escape and trigger emissions warnings. Most caps should be replaced every 3-5 years as preventive maintenance, or sooner if operated in harsh conditions.

Can I use chrome or aluminum decorative caps on my FLT, or will they cause problems?

Chrome and polished aluminum caps are safe to use and won't cause functional problems when properly manufactured for FLT applications. These decorative options use the same internal components as standard caps but feature upgraded exterior finishes. Ensure any decorative cap you choose maintains the proper venting type for your system and includes a quality fuel-resistant gasket. Some chrome caps may require occasional polishing to maintain their appearance.