Land Rover Defender 2023–2024 — technical service bulletin
Bulletin N763 UPS8522-4 · NHTSA communication 10228937 · issued Dec 15, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2023–2024
model years
6
vehicle entries
Official summary
3.0l P6 Petrol engine, where one of the camshaft carrier holes has not been fully drilled.
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.