Cab Corners Compatible with 1999-2007 Chevy Silverado Sierra - Steel

In this review the ECOTRIC cab corners are evaluated as a direct, no-frills replacement for owners of 4 door extended cab Chevrolet and GMC trucks from the late 1990s through the mid 2000s. The bottom line: these replacement cab corners are best for owners who need a durable, steel part that restores under-cab protection and appearance quickly; the biggest reason to buy is straightforward fitment for the stated Silverado and Sierra model years and part numbers, making them a practical repair option when rust or impact has damaged the originals.

Key Features

• Fitment: Designed specifically for 4 door extended cab Chevy Silverado and GMC Sierra models from 1999-2007, ensuring a targeted replacement for the listed years and series.
• Direct replacement: Replaces factory part numbers 0856-115 and 0856-116 so installers can swap damaged cab corners without major modification.
• Durable construction: Made of steel with an electrophoretic surface finish to resist wear and extend the service life in everyday use and road conditions.
• Protects bodywork: Covers and hides unsightly damage under the cabin and shields the underside from impacts and environmental exposure.
• Complete pair: Package contains left and right cab corners so both sides can be renewed at once for a matched appearance.
• Simple replacement: No additional drilling or major adjustments are required for mounting when the original bracket locations are intact.

Who It's For

This product suits owners of 4 door extended cab Chevrolet Silverado and GMC Sierra trucks from model years listed who want an affordable, robust replacement for corroded or damaged cab corners. It is especially useful for people doing a targeted body repair or restoring a truck to a tidy, protected underside without replacing larger body sections.

It is not intended for two door or crew cab models, and buyers who require mounting hardware or a finished painted part should plan to source those separately. Also, customers expecting an exact OEM cosmetic match in every flange detail should verify fit before installation, as a few users reported shape differences around door flanges.

Pros & Cons

Pros

• Solid steel construction gives a rugged, long lasting repair option for rusted or damaged corners.
• Good fit for the specified Silverado and Sierra model years, making installation straightforward for most 4 door extended cabs.
• Electrophoretic treated surface helps resist everyday wear and extends service life.
• Comes as a left and right pair so both sides can be replaced together for consistent appearance.

Cons

• Mounting hardware is not included, so additional parts may be needed for installation.
• Some customers reported flange shape or thickness differences that required minor adjustments at the door area.

Specifications

Brand	ECOTRIC
Compatible models	1999-2006 Silverado/Sierra 1500; 2000-2004 2500; 2001-2006 2500 HD 3500; 2007 Classic 1500 2500 HD 3500
Cab type	4 Door Extended Cab only
Replaces part numbers	0856-115, 0856-116
Material	Durable steel with electrophoretic surface
Package contents	2PCS x Cab Corners (Left & Right)
Mounting hardware	Not included

Our Verdict

For owners of the specified Silverado and Sierra extended cab trucks who need a sturdy, direct replacement to repair rusted or damaged cab corners, these steel parts are a pragmatic choice that balance cost and durability. They restore protection under the cabin and simplify repair work, though buyers should expect to source fasteners and be prepared for minor fit adjustments around door flanges in some cases.

Frequently Asked Questions

Do these fit crew cab or two door models?
These cab corners are designed only for 4 door extended cab models and will not fit crew cab or two door variants.

Are mounting bolts included with the package?
No, the package includes left and right cab corners only; mounting hardware is not included.

Will they require drilling or body modification?
They are intended as direct replacements with no additional drilling required when original mounting points are intact, though some installers may make minor adjustments for perfect flange alignment.