2014 Chevrolet Silverado 2500 HD Catalytic Converters

Genuine GM catalytic converters for the 2014 Chevrolet Silverado 2500 HD, at wholesale prices. Converters are emissions parts, and the substrate loading has to match what the ECM expects from the downstream oxygen sensor. GMT900 HD through 2014, K2XX HD from 2015 to 2019, and the T1XX HD from 2020.

Symptoms to look for

A P0420 code, rattling from underneath, or a failed emissions test. On a heavy duty pickup, trim, tow package and drivetrain each move part numbers within one model year.

Buying OEM, briefly

• GM stands behind it. The catalytic converters warranty comes from the manufacturer, not from us.
• Priced below the dealer. Catalytic Converters at up to 40 percent off list, with no membership.
• Factory sourced. These catalytic converters are built to GM's own drawing by the supplier GM contracted.
• No guessing. Our VIN lookup resolves the near-identical catalytic converters numbers for you.
• Ships from Dallas. Catalytic Converters ordered by 3pm Central go out the same business day.

Ordering correctly

Original tooling means original fit, which matters most on anything that has to align with a neighboring part. Our VIN lookup is more accurate than any public catalog. Use it before you check out. In stock orders placed by 3pm Central ship the same business day from our Dallas warehouse.