Mountainpeak Rear Fuel Tank Crossmember for 2007-2014 Silverado & Sierra 1500 — Direct-Fit CNC Steel, E-Coated

Mountainpeak's rear fuel tank crossmember is a direct-fit replacement engineered to restore rear-frame strength and safely support the fuel tank on 2007–2014 Silverado and Sierra 1500 trucks.

If your Silverado or Sierra has a rusted, bent, or cracked rear crossmember, replacing it with a precisely made component is essential for structural integrity and safe fuel-tank mounting. This Mountainpeak crossmember is CNC-cut from heavy-gauge steel and finished with full electrophoretic e-coating to resist corrosion far better than simple surface paints. It’s built to match the original location just ahead of the rear axle, letting technicians and DIYers rebuild the rear-frame area without unnecessary guesswork.

How does this crossmember restore my truck’s rear-frame structure?

The Mountainpeak crossmember is manufactured to the factory footprint so it reestablishes the original mounting points and alignment. Replacing a weakened or missing crossmember returns the frame’s load path and prevents excessive tank movement, which can lead to other component stress.

• Direct-fit design for 2007–2014 Chevy Silverado & GMC Sierra 1500 models
• Positions precisely at the original location in front of the rear axle
• Restores correct fuel-tank support and frame geometry

What makes the materials and coating more durable than aftermarket alternatives?

Mountainpeak uses premium steel that is CNC-cut to consistent tolerances, which avoids weak spots common to stamped or overly thin parts. The entire assembly receives an electrophoretic (e-coat) finish, providing inside-and-out corrosion protection rather than a surface-only spray.

• Heavy-gauge steel reduces crack and deformation risk under tank load
• Electrophoretic e-coating protects internal crevices and exterior surfaces
• Consistent fabrication minimizes fitment issues during install

How difficult is installation and what will I need to do?

Installation is straightforward for a competent home mechanic or professional shop and does not require dropping the truck bed. The common sequence is to remove the fuel tank and rear shocks, cut away the damaged crossmember, set the replacement in place, weld it securely, then reinstall the tank and new shocks.

• No bed removal required—work from beneath the truck
• Remove fuel tank and shocks, cut out old material, weld in new piece
• Reinstall fuel tank and replace hardware as needed

Will this crossmember fit my exact model and what should I check before buying?

This part is designed specifically for Chevy Silverado and GMC Sierra 1500 trucks from 2007 through 2014. Before ordering, verify your truck’s model year and ensure your vehicle uses the rear crossmember located directly ahead of the rear axle.

• Confirm vehicle: 2007–2014 Silverado or Sierra 1500
• Match rear axle location and tank-mount configuration
• Inspect surrounding frame for additional rust or damage that may need repair

Who this is for: The Mountainpeak rear fuel tank crossmember is aimed at truck owners, mechanics, and restoration shops repairing rusted or damaged rear-frame sections on 2007–2014 Silverado and Sierra 1500 models. It’s a good choice when you want a heavy-duty, direct-fit replacement with superior corrosion protection that simplifies restoration and returns factory-like tank support.