We are frequently asked whether or not a catalytic converter should come with a used engine. The simple answer is “no.” There are two reasons for this, and I’ll go into those below.

A faulty catalytic converter can destroy an engine due to the critical function they serve in handling exhaust on modern vehicles. The 2002 and 2003 Nissan Altima have been reported by many to have catalytic converter problems, as have a lot of Suzuki vehicles. This can destroy the engine.

Salvage yards and engine sellers are restricted by the EPA in sending Catalytic Converters. Regulations say that you have to be specially certified to “re-certify” a catalytic converter. It is in violation of EPA regulations to send a catalytic converter if your company doesn’t have these qualifications. I am not aware of a single salvage yard in the US that advertises this certification, because it is insanely expensive to get! This is the main reason that used engines don’t come with Catalytic converters.

The second reason is that a catalytic converter isn’t part of the long block. Our company, and many others, only sell the long block, and not the bolt on parts like the starter, alternator, etc. In many vehicles, the catalytic converter is part of the exhaust manifold. If this is the case, no exhaust manifold should be shipped with an engine.

If you have any questions about buying a used engine to help get you back on the road, that’s what we’re here for. Give us a call at 901-266-9996 and one of our salespeople will be happy to help get you what you need!

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