2012 Chevrolet Suburban Catalytic Converters

Genuine GM catalytic converters for the 2012 Chevrolet Suburban, 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 2014, K2XX from 2015 to 2020, and the T1XX with independent rear suspension from 2021.

What sends people here

A P0420 code, rattling from underneath, or a failed emissions test. On a full-size SUV, second and third row configuration, rear climate and towing content all change part numbers here.

Why buy OEM here

• Wholesale pricing. Most catalytic converters numbers land well below dealer list.
• No aftermarket substitutes. These are GM catalytic converters, not OE-style equivalents.
• We catch the wrong part before you do. VIN verification is free on every catalytic converters order.

Before you order

OEM components carry GM warranty coverage, which is usually worth more than the price gap on the invoice. If you are unsure which version you have, give us the VIN and our specialists will confirm fitment. Stock moves out the door the day you order it, assuming you beat the mid-afternoon cutoff.