Frequently Asked Questions About Peterbilt 567/579 Fuel Tank Brackets & Straps

Will these fuel tank brackets fit both my Peterbilt 567 and 579 models, and what years are compatible?

Most fuel tank brackets and straps for Peterbilt 567/579 models are designed to fit both trucks from 2013 to present, as they share the same chassis configuration. However, there can be variations based on tank size (80-150 gallon capacities) and whether you have a single or dual tank setup. Always verify your specific tank diameter and mounting measurements before ordering, as some brackets are designed for 23-inch diameter tanks while others fit 25-inch tanks.

What's the difference between aluminum and steel fuel tank brackets, and which should I choose?

Steel brackets are typically more affordable and offer excellent strength for standard applications, but they require regular inspection for rust, especially in areas with road salt. Aluminum brackets cost approximately 30-40% more but provide superior corrosion resistance and weight savings (about 40% lighter). For trucks operating in coastal areas or regions with heavy salt use, aluminum brackets often prove more cost-effective long-term despite the higher initial investment.

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

Installation typically requires basic hand tools including socket wrenches, torque wrench, and jack stands to safely support the fuel tank during replacement. The process usually takes 2-3 hours per side for experienced mechanics. Critical considerations include properly supporting the tank weight (which can exceed 600 lbs when full), torquing mounting bolts to manufacturer specifications (typically 45-65 ft-lbs), and ensuring proper alignment to prevent stress cracks. Many drivers recommend draining the tank to half capacity or less before attempting installation.

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, cuts deeper than 1/8 inch, rust on metal components, or stretching that causes tank movement. Replace straps immediately if you notice the tank shifting during turns, fuel gauge fluctuations while driving, or visible gaps between the tank and frame. Most straps should be replaced every 5-7 years as preventive maintenance, or sooner if operating in harsh conditions.

Are aftermarket fuel tank brackets as reliable as OEM parts?

Quality aftermarket brackets from reputable manufacturers often match or exceed OEM specifications while costing 20-40% less. Look for brackets that meet SAE J1199 standards and feature proper grade steel (minimum A36) or 6061-T6 aluminum construction. Key quality indicators include powder-coated or e-coated finishes for corrosion resistance, pre-drilled mounting holes that align properly, and included grade 8 hardware. Avoid brackets priced significantly below market average, as these often use thinner materials or skip critical finishing processes.