LZ0 Thrust Bearing Build Dates
- Greg Nelson
- Nov 10
- 1 min read
Updated: Nov 24
This will be the location for a compilation of build dates that hav / have not had an engine failure. The purpose of this article is to give us some sort of timestamp as to when these engines / vehicles were actually built. Hopefully set some minds at ease as well to show how many true failures there have been. this is a small sampling from a video posted here: https://youtu.be/WmlzcwNtdjY
UPDATE - 11/11 9:10 PM
Update 11/12 7:45 - No new engine failures to report
UPDATE - 11/24/25 9:03PM
I Just received my sierra 1500 ulimate back after 5 weeks. Just under 5,000 km “reduced speed” turbo & oil full of metal. Build date on the chassis June 2025.
Keep up the good work!
Thanks
Sir, thank you for what you are doing. Pulling a cavity out of a gorillas mouth is easier than getting information from a dealership.
Have 2 LZO's:
2026 ZR2 build date 9/25, miles 1,500. No issues so far. This is one I'm concerned with.
2024 LTZ build date 10/23, miles 14k. Bought used at 10k, had service manager at local dealer go through it (prior to this problem) and only found info center was replaced.
Will update if I have thrust bearing issues.
Appreciate all you do. Any idea when the spreadsheet will get updated?
I have a 2025 GMC 1500 LZ0 AT4. Bought in 07/25 and on 12/01/25 it died while driving on way to hunt. Been at dealership since so I do not know the build date and just heard from them today that my engine locked up due to thrust bearing failure. 4941 miles
My 2025 Sierra 1500 Denali engine failed with a thrust bearing at 2,700 miles. The truck was assembled in Silao, MX 4/2025 but I do not know the actual engine build date. The dealer was chasing the P066D code for a failed oil pump. They replaced the oil pump after 4 weeks of waiting for the part, but it did not fix the problem. Then the TSB 25-NA-307 came out, pointing to the thrust bearing issue. By this time, the clock had run out on GM per the NC Lemon Law based on how long my vehicle had been out of service. I filed a case through the BBB National Programs website, and GM has had to offer repurchase or…