If you have an exhaust component in Richmond and are unsure whether to call it a converter, a DOC or a DPF, start with the evidence on the actual part. A large housing or a diesel vehicle name is not enough to settle the question. You can ask about a single unit without guessing its contents or value.
Understand the names without diagnosing by appearance
DOC means diesel oxidation catalyst; DPF means diesel particulate filter. Manufacturer Cummins describes them as distinct parts of an exhaust aftertreatment system. A filter captures particulate material, while a catalyst performs a different emissions-treatment role. That distinction does not identify your particular component.
Do not assume every diesel component has the same internal material, precious-metal content or recycling route. Nor does the word gasoline provide a payable grade. Keep the unit intact while you gather the information available.
Start with the code and known application
Photograph the whole detached component and any readable manufacturer label, stamped marking or part number. If the component cannot be photographed safely, explain that rather than attempting an unsafe angle or changing the material.
- Say whether the known source vehicle used diesel or gasoline.
- Add the vehicle or equipment details you can confirm.
- Explain whether the number is on this component or a nearby part.
- Describe visible damage, attached sections and known missing material.
If all you have is a description supplied by someone else, distinguish it from your own observation. A useful note might say that the source vehicle is known but the component type is not. It is better to leave a question open than to turn an uncertain label into an asserted fact.
Ask about acceptance before discussing a price
An article about diesel components is not a promise that SMASH buys every type. Ask whether the particular material can be considered and what further identification is needed. A quotation for a gasoline converter should not be applied to an unidentified diesel assembly.
The converter photo guide explains how to make the material and its markings easy to follow. It does not require you to open a housing or decide a technical classification yourself.
Make your Richmond enquiry specific
Send a photo enquiry directly to SMASH with your actual postal code, known source details and the question about your component. Include one unit or the actual quantity you have; avoid replacing an unknown detail with a guessed weight or category price.
If an offer is available, review what material it covers and its inspection and transport terms. Do not ship on the strength of this article or an initial enquiry. Use the confirmed instructions for the agreed material.