Catalytic converter replacement possibly went wrong?

Tiny
VANESSA828
  • MEMBER
  • 2004 TOYOTA COROLLA
  • 1.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 200,225 MILES
We received a new catalytic converter from an independent shop. The shop never gave us back our old part despite requesting it. After this we decided to do our own inspection only to see several areas that appeared to be welded together, despite the part (17410-0D151) being fully assembled. Can you let me know if this appears welded and why this would be done? Should we get it inspected at another place? My husband never changed his exhaust.
Saturday, March 22nd, 2025 AT 3:57 PM

1 Reply

Tiny
STEVE W.
  • MECHANIC
  • 14,046 POSTS
That part is made from several pieces that are welded together to form the assembly. As such it will appear to be welded. If you want a better opinion, please take some pictures of the parts and post them in your reply.
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Sunday, March 23rd, 2025 AT 5:52 AM

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