Frequently Asked Questions About Freightliner FLC112 Fuel Tank Accessories

What size fuel tanks are compatible with the Freightliner FLC112, and which mounting brackets do I need?

The Freightliner FLC112 typically accommodates 100-150 gallon aluminum or steel fuel tanks, with 26-inch diameter tanks being the most common. You'll need model-specific mounting brackets and straps designed for the FLC112's frame rail spacing, which varies between 34-40 inches depending on your truck's configuration. Always verify your frame measurements before ordering, as some FLC112s have custom spacing that requires adjustable mounting hardware.

Are aftermarket fuel tank straps and brackets as durable as OEM parts for the FLC112?

Quality aftermarket fuel tank straps and brackets made from heavy-duty steel with proper coating (zinc plating or powder coating) perform comparably to OEM parts. Look for straps rated for at least 3/8-inch thickness and brackets with reinforced mounting points. Many drivers report aftermarket options from reputable manufacturers lasting 10+ years with proper installation and maintenance. Avoid thin, uncoated steel products as they tend to rust and fail within 2-3 years.

What's involved in installing fuel tank steps and how difficult is the process?

Installing fuel tank steps on an FLC112 typically takes 2-3 hours and requires basic tools including a drill, wrenches, and measuring tape. Most aftermarket steps come with mounting brackets that attach to existing tank strap bolts or frame rails. The main challenges include ensuring proper alignment with the cab steps, drilling accurate mounting holes, and achieving adequate clearance from the tank. Professional installation is recommended if you're not comfortable drilling into your frame rails.

Which fuel cap styles work best for preventing theft and contamination on the FLC112?

Locking fuel caps with anti-siphon features are essential for FLC112s. Look for caps with double-seal designs that prevent water intrusion and include pressure relief valves to prevent tank damage. Popular options include vented locking caps with chain tethers that fit standard 4-inch tank openings. Avoid cheap single-seal caps as they often leak during rain or pressure washing, leading to fuel contamination issues.

Do I need to replace fuel tank mounting bushings when installing new straps, and how often should they be changed?

Yes, always replace rubber mounting bushings when installing new fuel tank straps. Old bushings compress and crack over time, causing metal-on-metal contact that leads to premature strap failure and potential tank damage. Quality polyurethane or rubber bushings should be replaced every 5-7 years or whenever you notice excessive tank movement, unusual wear patterns on straps, or cracking in the rubber. Using new bushings with new straps ensures proper weight distribution and reduces stress on mounting points.