On the Chevrolet website when building a Tahoe/Suburban the 24” rims you’re after are available to add as an option.
They are a $2,225 wheel option. Keep in mind I had the Suburban High Country already selected which comes standard with 22” rims. The $2,225 adder is on top of the 22” rims that come standard.
When you go to add them to the vehicle they require a bunch of other options as a “package” that add a total of $6,560 worth of options to the vehicle purchase.
Personally I think you would be setting yourself up to be let down if you think you can get a dealer to procure these 24” rims for no additional charge as a negotiation to close a sale. If they were an extra $500, maybe. Dealers don’t make much margin off new vehicle sales it’s all made on pre-owned vehicle sales and service. But hey the worst they could say is no.
It would be realistic that they may offer you a deal by trading in the 22” rims that come on the vehicle you buy as credit towards the purchase price of the 24” rims.
It may also be very possible that those particular 24” rims are not available unless the dealership happens to have a similar vehicle on the lot with the $6,560 package added to its build that includes the rims. If that is the case the dealership may ask for more than the $2,225 for the 22” to 24” wheel trade.
The 24” rims definitely have an OEM GM part number. The question is can they be purchased by themselves through a GM OEM parts dealer.
There are a couple brand new take offs listed on eBay reasonably priced per rim compared to getting through a GM dealership.
R# 2993282. 2025 TAHOE. More Parts for 2025 TAHOE » More Parts from this exact vehicle. ». If you are buying a steel wheel, it may be pictured on the vehicle with a wheel cover which is not included.
www.ebay.com
24" MACHINED,PAINTED,HIGHGLOSS BLK SEE PHOTOS FOR CONDITION! C Grade - The third level quality part. No Grade - A part that has not yet been graded. B Grade - The second level quality part. It is of average miles and normal condition for its age.
www.ebay.com
Also in one of the eBay auctions there’s a pic of the back side of the rim with a number stamped into it;
GM 84949593
That might be the part number but a quick google search of “GM 84949593” does not appear to bring up anything related to that 24” rim.