ECOTRIC Cab Corners for 1999-2007 Chevy Silverado / GMC Sierra Extended Cab Pair — Heavy-Gauge Steel, E-Coated

ECOTRIC cab corners are direct-fit steel replacements for rusted or damaged lower cab corners on 1999–2007 Chevy Silverado and GMC Sierra 4-door extended cab trucks.

If your truck’s lower cab corners have corroded, been dented, or otherwise lost structural and cosmetic integrity, these ECOTRIC replacements restore the factory silhouette and protect the cabin underside from further damage. They’re engineered as a direct replacement for OE part numbers 0856-115 and 0856-116 and come as a left-and-right pair sized for extended four-door models.

Will these cab corners fit my Silverado or Sierra extended cab?

These panels are made specifically for 4-door extended cab models across multiple model years. Check the year and cab style of your truck against the fit list before purchasing to ensure compatibility.

• Fits Chevy/GMC 1500 models from 1999–2006 and 2007 Classic 1500/2500 HD/3500 Classic where noted.
• Compatible with Silverado/GMC Sierra 2500 (2000–2004) and 2500 HD/3500 (2001–2006).
• Designed as direct replacements for part numbers 0856-115 and 0856-116.

How durable are these replacement cab corners?

Constructed from heavy-gauge steel and finished with an electrophoretic coating, ECOTRIC cab corners resist everyday wear and moisture that drive rust and corrosion. The materials and surface treatment extend service life while maintaining the structural support the original panels provided.

• Heavy steel construction delivers strength against impacts and road debris.
• Electrophoretic coating adds corrosion resistance and paint adhesion.
• Manufactured to withstand typical use, road salt, and seasonal exposure.

Do I need special tools or modifications to install them?

These panels are manufactured as direct-fit replacements to minimize modification. No extra drilling or major bodywork should be necessary when replacing a damaged corner on a proper-fit extended cab truck, though some mechanical skill and basic tools are required.

• Sold as a pair (left and right); mounting hardware is not included.
• Designed to match OEM attachment points for a straightforward swap.
• Recommended: basic hand tools, rust-penetrating spray, and proper safety gear.

What cosmetic and functional benefits will I notice after replacing them?

Replacing corroded or dented cab corners immediately improves the truck’s appearance and helps prevent further body deterioration. Properly installed corners restore the lower cabin profile and block water, dirt, and impacts from reaching vulnerable inner panels.

• Restores factory lines for a cleaner, more finished look.
• Prevents further rot or panel separation from hidden damage.
• Reduces potential for future repair costs by protecting inner structure.

Who is this for: ECOTRIC cab corners suit owners of 1999–2007 Chevy Silverado and GMC Sierra extended cab trucks who need a robust, direct-fit panel to replace rusted or damaged lower cab corners. They’re ideal for do-it-yourself mechanics, body shops doing repairs to return a vehicle to original appearance, and truck owners prioritizing durability and corrosion resistance. Confirm your model year and cab configuration, and note that mounting hardware is not supplied—professional installation is recommended if you’re not experienced with body-panel replacement.