Identifying & Scrapping Honda Catalytic Converters

Posted: May 26, 2022

In this week’s market news, the Team at will be telling you more about Scrap Honda Catalytic Converters.

Usually, a better than normal value cat, Honda cats have great ways to identify them as OEM. As one of the most popular car manufacturers, you would think that Honda would do a better job at numbering or categorizing their catalytic converters…but they do not. As one of the most valuable brands of catalytic converters, Honda has a very poor and inadequate system for their catalytic converters.

While a select few have numbers even stamped on them, most of these units are unmarked with serial numbers and many do not even have the logo either. This makes it harder for scrappers to learn about and more confusing at the same time.

Things that we look for would be the length of the units, if they are manifold or pre-cats, and also if there are O2 Sensors on these units. Honda is known for including O2 sensors in a majority of their units to help the engine and the car’s computer know that it is doing its job of filtering the emissions cleanly.

There are wide varieties from manifold catalytic converters that are smaller and some that fall into the small foreign category.

But the ones everyone wants to talk about are the large foreign Honda Converters – there are the straight and slant this describes the way the O2 sensor sits on the converter.

Pictures of Honda Catalytic Converters

Below are pictures of each of the common varieties. This helps determine the value as well as the number of biscuits in each converter, it is so important that when trying to get an accurate quote, you send a picture of the whole converter from top to bottom. This will help determine the number of biscuits inside the catalytic converter and the side of the cat that the O2 sensor was on.

There are not many serial numbers on Honda cats, so we are relying on you (our customers) to send great pictures (like below) for us to be able to see how the O2 Sensors are placed as well as what flanges and wings are attached to them.

In this video, Tom explains the importance of shields on Catalytic Converters (Including Honda Cats)

The buying team at is waiting to help you make $$ on your Catalytic Converters.

Send your photos to receive a quote today!


We at want to thank you for your patronage and For giving us the chance to earn your business & service your Catalytic Converter.