Identifying Chevrolet Catalytic Converters for Scrap

How to Identify and Sell Chevy Catalytic Converters with RRCats

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If you’re scrapping a Chevrolet catalytic converter, you’ll want to identify the correct serial numbers to ensure you get the best possible quote. This page explains how to locate GM/Chevy serial codes, what numbers to look for, and how to get a quote from our team at RRCats.

How To Find Serial Numbers

As some of the most common catalytic converters on the market, all GM brands/makes have similar serial number patterns. These patterns could have different starting serial numbers but generally have between 7 and 10 digits. These serial numbers are in one of two places on the cats about 90% of the time, making them uniform to look for.

The first place is on one of the corners of the catalytic converters and will always be in that 7-10 digit form. Sometimes, another stamped code could be on the opposite corner, but that code can be ignored.

The second place is generally in the cat’s middle and is stamped into the metal shield.

corners of a Chevy Flow catalytic converter where the serial numbers can be found

What Serial Numbers on Chevy Cats Look Like

Most OEM Chevy converters will start with number sequences :

  • 126—–
  • 127—–
  • 253—–
  • 255—–

You’ll often find these stamped on the shield, near the edge, or even hidden underneath the converter body.

Scrap Chevy Catalytic Converters

If you're selling a GM or Chevy catalytic converter, knowing where to find the serial number is key to getting an accurate scrap price. Some serial numbers are easy to spot, while others may be harder to locate. In this video, we show you where to check on your catalytic converter to find the serial number.

How Does It Work?

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Check corners, under shields, and down pipes for numbers. Not all catalytic converters have numbers.
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To get a quote sooner, attach photos of any serial numbers and an overhead pic of the catalytic converter(s).
Click or drag files to this area to upload. You can upload up to 3 files.
Upload a Photo: Please include a clear photo of one of the following documents: Vehicle or equipment, Registration, Title, or Bill of Sale. Why do we need this? We are required by law to verify proof of ownership before purchasing certain equipment or materials to prevent theft and ensure lawful transfer. For more details, refer to New Jersey Scrap Metal Laws – N.J.S.A. 13:1E-99.12 (or insert exact link to the statute you want to reference). This requirement is mandatory to receive a quote.

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