Frequently Asked Questions About Freightliner SD 108-122 Fuel Tank Brackets-Straps

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

These fuel tank brackets and straps are specifically designed for Freightliner SD models 108 and 122, covering model years from approximately 2000 to 2014. However, compatibility can vary based on your specific tank configuration (aluminum vs. steel tanks) and tank size (100-150 gallon capacities). We recommend checking your existing bracket part numbers or contacting us with your VIN to ensure proper fitment before ordering.

Are these brackets made from steel or aluminum, and will they rust?

Most replacement fuel tank brackets for the SD 108-122 are manufactured from heavy-duty steel with a corrosion-resistant coating, typically powder-coated or zinc-plated. While these coatings provide good protection, regular inspection and touch-up of any chips or scratches is recommended, especially in salt-belt states. Some premium options feature stainless steel construction for maximum corrosion resistance, though these come at a higher price point.

Can I install these brackets myself, or do I need special tools?

Installation typically requires basic hand tools including socket wrenches, a jack or tank support system, and safety equipment. The most challenging aspect is safely supporting the fuel tank during bracket replacement - never attempt this with fuel in the tank. Most experienced mechanics can complete the job in 2-3 hours per side. Critical torque specifications must be followed (usually 45-55 ft-lbs for mounting bolts), and we strongly recommend having a second person assist with tank positioning.

What's the difference between OEM and aftermarket brackets?

OEM Freightliner brackets typically feature exact dimensional specifications and factory-grade materials but come at a premium price. Quality aftermarket options often provide comparable strength and fitment at 40-60% less cost. Key differences to look for include material thickness (minimum 3/16" steel recommended), weld quality, and coating durability. Aftermarket brackets may require minor adjustments during installation but generally perform equally well when properly installed.

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

Inspect your fuel tank straps during every oil change for signs of wear including fraying, corrosion at connection points, stretched or deformed metal, and loose mounting hardware. Replace straps immediately if you notice any cracks, severe rust, or if the tank shows any movement or sagging. Most straps should be replaced every 5-7 years as preventive maintenance, or sooner in harsh operating conditions. Always replace straps in pairs to ensure even tank support.