Frequently Asked Questions

Answers to the Most Common DPF Recycling Questions

Frequently Asked DPF and DOC Recycling Questions

Every month we receive hundreds of phone and email questions about DPF and DOC recycling. Here are answers to some of the most common questions. In addition, you might review our Ultimate Guide to DPF Recycling.

YES. In a letter written directly to Red Fox Resources from the California Air Resources Board on October 6, 2015, the Chief of the Emissions Compliance, Automotive Regulations and Science Division, expresses in writing that the practice of selling a used DPF or DOC for the purpose of recycling DPFs is allowed. Download a copy of the CARB letter here.

NO. According to Title 13, CCR, Section 2706, “No party shall advertise, sell, lease, or offer for sale or lease, a used verified diesel emission control strategy.” It is, therefore, illegal to sell a used DOC or DPF. Quoting from the California Air Resources Board’s website, “It is never legal to install a USED filter, your vehicle WILL NOT be in compliance.”

It is not recommended to landfill spent DOCs or DPFs. Both DOCs and DPFs may contain hazardous waste, primarily in the form of zinc from lubricating oil. Contact Red Fox for information on determining if your DPFs and DOCs need to be treated as hazardous waste. Additionally, by landfilling your spent parts you could be throwing money away as many DPFs and DOCs have a recycle value. Red Fox Resources does not landfill any collected materials.

NO. It is not recommended to scrap DOCs or DPFs. In Title 22, CCR, Chapter 23, “scrap metal” is defined to EXCLUDE “any metal contaminated with a hazardous waste, such that the contaminated metal exhibits any characteristic of a hazardous waste under article 3 of chapter 11 of this division.” Zinc is listed as a hazardous waste under article 3 of chapter 11. Therefore, used DPFs and DOCs should not be treated as scrap metal to be recycled with a scrap metal recycler. Contact Red Fox for information on determining if your DPFs and DOCs need to be treated as hazardous waste.

NO. No cleaning process is 100% effective and there will always be some residual hazardous material remaining in the walls and cells of the DPF and/or DOC. Plus, it doesn’t make business sense, since cleaning a DPF typically costs the user $300-400, whereas Red Fox Resources will pay the owner of the DPF for the parts.

Red Fox Resources will collect and recycle your parts with compliant practices and pay you in the cases where the parts hold residual value.

Nothing. In fact, your used DOCs and DPFs may contain precious metals that can be recovered and reused. Red Fox will pay you for your used DOCs and DPFs. Rates vary depending on the part make, model, and size. Read more about prices paid for recycled DPFs and DOCs.

Rates vary based on part make, model, size as well as the market price of Platinum Group Metals (PGM).  Generally, parts containing residual PGM can be worth $20 – $900. Contact Red Fox Resources to get values for individual parts. Read more about prices paid for scrap DPFs and DOCs.

Red Fox will pay you for your parts within 15 days of receiving your parts.

YES. We understand core exchange programs, however, many times the OEM core acceptance policies do not apply to cores that have been damaged, Red Fox accepts all spent emission parts regardless of condition.  Also, many times OEM core programs may be uneconomical and recycling can provide you with a higher value (with less headache) than an OEM core exchange program. For those cases, recycling with Red Fox is your solution.

YES. Red Fox will pay the shipping costs and handle all the logistics of getting your parts to us. Unfortunately, due to the economics of shipping, we are not able to work with individual, single unit owners. Shipping costs require a minimum of 5 DPFs/DOCs per shipment. [Watch video on DPF packing process] If you have a local dealer, owner’s group, or owner’s club to pool shipments, we’d be very interested in discussing our recycling program. Please give us a call!

SCR systems are typically coated with copper zeolite opposed to platinum group metals (PGM), so they do not have a residual recycle value. However, Red Fox understands that most OE’s do not require core returns on replacements of SCR systems, so they have a tendency to stack up in shops. In an effort to provide a valuable service to our customers, Red Fox will collect the SCR systems at no charge. Once the parts are destroyed the clean ceramic material is donated to local ceramic artists or to aggregate or concrete producers.

DPF and DOC parts collected by Red Fox Resources are typically recycled and not resold. When a part is purchased by Red Fox for recycling, the substrate material is removed from the can and is pulverized and smelted to recover any PGM. The remaining steel can is recycled through a metals recycler. No materials collected by Red Fox are sent to the landfill.

Each manufacturer imprints the part number in a unique location on the DPF or DOC and some manufacturers tack weld a data tag to the part that would contain the DPF. Many times, there are multiple part numbers listed on a single part along with a serial number. For generating a recycling price estimate, the serial number is irrelevant and what Red Fox is looking for would be any of the part numbers listed. Usually the part numbers would follow the acronyms CPN or EPN. For a more detailed explanation of how to find part numbers, see our DPF part number explainer video on Youtube or our blog post on this topic.

Red Fox makes all payments via company check.

NO. To ensure proper documentation of each transaction, Red Fox only issues payment via company check.

It’s very simple.  Watch our 2-minute video and you’ll be good to go!

Our experts are here to answer questions and get you started.

Red Fox MarketingFAQs