Frequently Asked Questions About Freightliner FLC112 Air Tanks, Wraps & Mounting

Will these air tanks fit my specific year FLC112, and what are the mounting requirements?

Our air tanks are designed to fit Freightliner FLC112 models from 1988 through 2001. However, mounting configurations can vary based on your truck's specific setup and any modifications. Most installations require the standard frame rail mounting brackets (sold separately). We recommend measuring your existing tank dimensions and bracket spacing before ordering. Common sizes include 11" x 25" and 13" x 30" tanks. If you're unsure about fitment, contact us with your VIN for verification.

What's the difference between aluminum and steel air tanks, and which should I choose?

Aluminum tanks are lighter (reducing overall vehicle weight by 15-20 lbs per tank), resist corrosion better, and typically last longer in harsh weather conditions. Steel tanks are more budget-friendly and handle impact better but require regular inspection for rust. For trucks operating in northern climates with road salt exposure, we strongly recommend aluminum. Steel tanks work well for southern routes or trucks garaged indoors. Both meet DOT requirements when properly maintained.

Can I install these air tanks myself, and what tools will I need?

Installation typically takes 2-3 hours per tank for experienced mechanics. You'll need: a socket set (including 3/4" and 7/8"), air line fittings and thread sealant, mounting straps or brackets, and basic hand tools. The main challenges include properly routing air lines to avoid heat sources and ensuring brackets align with frame holes. Many customers report needing to slightly modify mounting brackets for perfect fitment. We recommend professional installation if you're not comfortable working with air brake systems.

What tank wrap options are available, and do they really protect against corrosion?

We offer rubber-backed vinyl wraps, aluminum heat shields, and powder-coated steel guards. Vinyl wraps provide basic protection against road debris and moisture but need replacement every 3-5 years. Aluminum shields offer superior heat protection and last longer but cost more. Based on customer feedback, wraps significantly reduce corrosion on steel tanks when properly installed with no gaps. Ensure wraps extend slightly beyond tank ends and seal all edges to prevent moisture intrusion.

What's included with the mounting kits, and are they universal?

Standard mounting kits include heavy-duty steel straps, mounting brackets, grade 8 bolts, and rubber isolators. However, kits are not truly universal - frame rail width and existing bracket holes vary between FLC112 configurations. Step-frame models often require different brackets than standard frames. Kits typically don't include air fittings, drain valves, or pressure protection valves, which must be ordered separately. Double-check your frame rail measurements (standard is 34" outside-to-outside) before ordering.