Diesel Oxidation Catalysts

Replacement Parts > Exhaust > Catalytic Converter

Diesel Oxidation Catalysts

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What is a Diesel Oxidation Catalyst?

A Diesel Oxidation Catalyst (DOC) is a vehicle emission control device designed to reduce the amount of hydrocarbons and carbon monoxide in the exhaust of diesel engines. It works by oxidizing the pollutants in the exhaust into carbon dioxide and water.

What is the purpose of a Diesel Oxidation Catalyst?

The purpose of a Diesel Oxidation Catalyst is to reduce the amount of pollutants released into the atmosphere from diesel engines, by oxidizing the pollutants in the exhaust into carbon dioxide and water.

How do I determine if my Diesel Oxidation Catalyst is faulty?

To determine if your Diesel Oxidation Catalyst is faulty, you should inspect the exhaust for black smoke, check the overall performance of the engine, and have an emissions test done on the vehicle.

Can a faulty Diesel Oxidation Catalyst cause damage?

Yes, a faulty Diesel Oxidation Catalyst can cause damage to other parts of the exhaust system, as well as performance issues with the engine.

How do I replace a Diesel Oxidation Catalyst?

To replace a Diesel Oxidation Catalyst, you should:

  1. Park the vehicle on a level surface and turn off the engine.
  2. Locate the catalytic converter and loosen the bolts that secure it to the exhaust pipe.
  3. Remove the catalytic converter and replace it with the new one.
  4. Secure the new catalytic converter to the exhaust pipe using the bolts.
  5. Start the engine and check for any exhaust leaks.