Wisconsin Catalytic Converter Laws

Selling Catalytic Converters in Wisconsin

If you’re in Wisconsin and want to sell a catalytic converter, it’s essential to understand the state’s laws. While legal sales are still permitted, the state has moved to tighten oversight and impose more severe penalties for converter theft.

Sell Your Converter Today

What the Wisconsin Law Says

  • A used catalytic converter can now be treated as a “major part of a vehicle,” meaning its unauthorized removal is a serious criminal offense.
  • Under Wisconsin Statute § 943.23(5): “the catalytic converter” is listed among “major part of a vehicle” that, when removed without owner consent, is a Class I felony.
  • The 2021 Senate Bill 408 created Act 189, which regulates scrap dealer purchases of catalytic converters — setting out seller identification, documentation, and record‑keeping requirements.

Can You Still Sell Your Converter?

✅ Yes — as long as you legally own the catalytic converter, provide proper documentation (proof of ownership, vehicle VIN, etc.), and work with a compliant buyer.

Selling to RRCats from Wisconsin

Here’s how it works with us at RRCats:

  1. Text us a photo of your converter + serial number for a quote
  2. Use your own box or ask for our pre‑labeled shipping kit
  3. Get paid securely (check, PayPal, etc.) — we handle the compliance paperwork

Because RRCats is based in New Jersey, you can ship your converter to us and avoid many of the in-state buyer complications, while staying fully compliant.

Need Help?

Want to check your converter’s value or see if it’s OEM? Visit our Cat Guide »

Ready to Get a Quote?

Please fill out the form below or text us pictures to get a custom quote for your catalytic converter.

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Check corners, under shields, and down pipes for numbers. Not all catalytic converters have numbers.
Drag & Drop Files, Choose Files to Upload You can upload up to 10 files.
To get a quote sooner, attach photos of any serial numbers and an overhead pic of the catalytic converter(s).
Drag & Drop Files, Choose Files to Upload You can upload up to 3 files.
Upload a Photo: Please include a clear photo of one of the following documents: Vehicle or equipment, Registration, Title, or Bill of Sale. Why do we need this? We are required by law to verify proof of ownership before purchasing certain equipment or materials to prevent theft and ensure lawful transfer. For more details, refer to New Jersey Scrap Metal Laws – N.J.S.A. 13:1E-99.12 (or insert exact link to the statute you want to reference). This requirement is mandatory to receive a quote.

 

Who Is RRCats?

Nationwide catalytic converter buyers

Fair. Consistent. Reliable.

“Their online system works great. Verifying ID and proof of ownership worked smoothly and gave me confidence that I was dealing with a reputable company.”

~ Customer, Mike K.*

“Very fast service! I submitted my info for a quote and got it the next morning. The only thing that was slow about the process was me packing it all up to ship out!”

~ Customer, Steven C.*

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