Chevrolet Silverado 1500 2019–2022 — technical service bulletin
Bulletin 24-NA-241 · NHTSA communication 11024332 · issued Sep 6, 2025
Technical service bulletin
communication type
Engine
component
2019–2022
model years
8
vehicle entries
Official summary
This informational bulletin advises the technician of a part number change for long block engines used in the trucks noted.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.