Peterbilt 389 Fuel Tank Brackets & Straps

Frequently Asked Questions About Peterbilt 389 Fuel Tank Brackets & Straps

Will these fuel tank brackets and straps fit my specific year Peterbilt 389?

Most fuel tank brackets and straps for the Peterbilt 389 are designed to fit model years 2008 through current production. However, there can be variations based on your specific tank size (100-150 gallon), tank material (aluminum or steel), and whether you have a single or dual tank setup. We recommend checking the product specifications for each item or contacting our support team with your OEM to ensure proper fitment.

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

Aluminum straps are lighter weight, resist corrosion better, and typically have a polished or brushed finish that maintains its appearance longer. Steel straps are generally more affordable and offer excellent strength, but require regular maintenance to prevent rust. If you operate in areas with heavy road salt or coastal environments, aluminum is the better long-term investment. For standard highway use, quality steel straps with proper coating work well.

Can I install fuel tank brackets and straps myself, or do I need professional help?

Installation is typically a straightforward process that many drivers handle themselves with basic tools including wrenches, sockets, and a jack to support the tank. The job usually takes 2-3 hours per tank. Critical safety tip: always drain the fuel tank completely before removal and have a helper to support the tank weight. If you're uncomfortable working with fuel systems or lack proper lifting equipment, professional installation is recommended for safety.

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

Inspect your straps regularly for signs of wear including visible rust, cracks, stretched or thinned metal, loose mounting bolts, or any deformation. If you notice fuel tank movement, hear rattling sounds while driving, or see wear marks on the tank itself, replacement is needed immediately. As a general rule, straps exposed to harsh conditions should be inspected every 6 months and typically last 5-7 years with proper maintenance.

Are aftermarket fuel tank brackets as reliable as OEM Peterbilt parts?

Quality aftermarket brackets and straps from reputable manufacturers often match or exceed OEM specifications while costing 30-50% less. Look for parts made from grade 304 stainless steel or 6061-T6 aluminum with proper weight ratings for your tank size. Many aftermarket options also offer improved features like rubber tank cushioning or upgraded corrosion-resistant coatings that aren't available on factory parts. Always verify the weight rating matches your tank capacity when fully loaded.