2011 Chevrolet Silverado 1500 Catalytic Converters

Genuine GM catalytic converters for the 2011 Chevrolet Silverado 1500, at wholesale prices. Converters are emissions parts, and the substrate loading has to match what the ECM expects from the downstream oxygen sensor. GMT900 through 2013, K2XX from 2014 to 2018, and the T1XX from 2019.

Signs it is time

A P0420 code, rattling from underneath, or a failed emissions test. On a light duty pickup, cab configuration, drivetrain and box length all split this group, so the badge on the tailgate is not enough to order from.

The case for genuine GM

• Ships from Dallas. Catalytic Converters ordered by 3pm Central go out the same business day.
• Straightforward returns. No restocking games on catalytic converters that did not fit.
• GM stands behind it. The catalytic converters warranty comes from the manufacturer, not from us.

Making sure it fits

When a component is superseded, GM documents why. That history is worth having when something failed early. Two vehicles off the same line in the same week can take different parts. The VIN is how we tell. Most orders leave the same day. Oversized and freight items take an extra day to crate.