Used Gearbox

The inner fender (also called the fender apron or inner fender panel) is the sheet metal panel inside the engine bay that separates the engine compartment from the wheel well. It provides structural support for the fender, strut tower, and sometimes the battery tray or fuse box. Front-end collisions can buckle the inner fender even when the outer fender is only lightly damaged. Redline has 2 used Gearbox listings from 1 verified sellers across 2 makes, including Mercedes Benz, Bmw models. Inner fenders are typically welded to the vehicle body, which means replacement involves cutting and welding at a body shop. On some vehicles, portions of the inner fender are bolted in, making replacement easier. Confirm which type your vehicle uses. Condition matters because this is a structural panel. Avoid units with body filler, heavy rust, or distorted strut tower mounting points. A clean inner fender from a rust-free donor vehicle is worth the search, especially if you live in a salt-belt state.