STRAPS & BRACKETS

Straps & Brackets For Peterbilt Trucks

Straps and mounting brackets secure fuel tanks, battery boxes, air tanks, and other chassis-mounted components to the frame rails of a Peterbilt truck. A failed fuel tank strap or corroded battery box bracket can allow critical components to shift or come loose under vibration — a safety hazard with serious consequences at highway speed. We carry replacement fuel tank straps, battery straps, air tank brackets, and related mounting hardware for Peterbilt trucks.

Frequently asked questions about straps & brackets

How do I know when fuel tank straps need to be replaced on a Peterbilt?

Inspect fuel tank straps for corrosion, thinning of the strap body, cracks at the mounting holes, and elongation of the mounting fastener holes from vibration loading. The rubber or neoprene cushion between the strap and tank should also be checked for cracking or compression set — a flat or cracked cushion allows the strap to chafe directly against the tank wall, which can wear through the aluminum over time. Any strap showing significant corrosion, cracking, or deformation should be replaced proactively rather than waiting for a failure.

What torque should fuel tank strap bolts be set to on a Peterbilt?

Fuel tank strap bolt torque specifications vary by Peterbilt model and strap design — consult the Peterbilt chassis service manual for your specific model year for the correct specification. Over-torquing strap mounting bolts can crack the strap mounting ears or strip threads in the frame bracket; under-torquing allows the strap to loosen from vibration and permits tank movement. After installation, retorque strap hardware after the first 1,000 miles of operation, as hardware tends to settle during initial service.

Can corroded battery box brackets be repaired, or do they need to be replaced?

Light surface corrosion on battery box brackets can be wire-brushed, treated with a rust converter, and painted to extend service life. Brackets with through-corrosion, cracked welds, or significant section loss in the structural portions should be replaced — a battery box that separates from a corroded bracket on a rough road presents a serious electrical hazard and potential fire risk. The cost of replacement brackets is minimal compared to the consequences of battery box failure at speed.

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