Frequently Asked Questions About Freightliner Columbia 112/120 Fuel Tank Brackets

What years and models are these fuel tank brackets compatible with?

These fuel tank brackets are specifically designed for Freightliner Columbia 112 and 120 models manufactured between 2000 and 2015. They fit both single and dual tank configurations. However, brackets for pre-2005 models may have different mounting hole patterns than 2005-2015 models, so always verify your truck's VIN and production year before ordering. Some Century Class models share similar mounting points, but we recommend contacting us to confirm compatibility.

Are these brackets made from aluminum or steel, and which is better for my application?

We offer both aluminum and steel fuel tank brackets. Steel brackets are typically powder-coated or galvanized and cost less upfront, but may require maintenance to prevent rust, especially in salt-heavy regions. Aluminum brackets resist corrosion naturally and weigh about 40% less, reducing overall vehicle weight and potentially improving fuel economy. For trucks operating in coastal areas or winter road conditions with heavy salt use, aluminum is often the better long-term investment despite the higher initial cost.

Do I need special tools or professional installation for these brackets?

Installation typically requires basic hand tools including socket wrenches (usually 3/4" and 7/8"), a torque wrench, and potentially a floor jack to support the fuel tank during bracket replacement. Most experienced drivers can complete the installation in 2-3 hours per side. The main challenges include safely supporting the weight of a full fuel tank and accessing upper mounting bolts. We strongly recommend draining the fuel tank before replacement to reduce weight and improve safety. Professional installation typically runs $200-400 per side.

How do I know when my fuel tank brackets need replacement?

Common signs include visible cracks or stress fractures in the bracket metal, excessive rust or corrosion, bent or deformed brackets from impact damage, or unusual movement/shifting of the fuel tank during operation. Also inspect for elongated mounting holes, which indicate the bracket has been stressed beyond its design limits. During pre-trip inspections, look for fuel stains around bracket mounting points, which may indicate movement and wear. Replace brackets immediately if you notice any of these issues to prevent fuel tank damage or loss.

What's included with the bracket, and what additional parts might I need?

Our fuel tank brackets typically include the main bracket assembly and mounting hardware (bolts, washers, and lock nuts). However, you may need to purchase separately: rubber isolation pads or cushions between the bracket and tank (recommended replacement during any bracket service), new fuel tank straps if yours show wear, and anti-seize compound for the mounting bolts. Some installations may also require new J-bolts if the existing ones are corroded or damaged. We offer complete installation kits that include all necessary components.