Porsche 718 2001–2026 — technical service bulletin
Bulletin No. D745 · NHTSA communication 11026331 · issued Nov 6, 2025
Technical service bulletin
communication type
Engine
component
2001–2026
model years
60
vehicle entries
Official summary
Parts information for parts withdrawal involving the Thermostat (PAB121115C). The cars affected are ones that use this part number.
Vehicles covered
- 2017 Porsche 718
- 2017 Porsche 718 Boxster
- 2018 Porsche 718 Boxster
- 2019 Porsche 718 Boxster
- 2020 Porsche 718 Boxster
- 2021 Porsche 718 Boxster
- 2022 Porsche 718 Boxster
- 2023 Porsche 718 Boxster
- 2025 Porsche 718 Boxster
- 2021 Porsche 718 Boxster GTS
- 2022 Porsche 718 Boxster GTS
- 2023 Porsche 718 Boxster GTS
- 2024 Porsche 718 Boxster GTS
- 2017 Porsche 718 Boxster S
- 2018 Porsche 718 Boxster S
- 2019 Porsche 718 Boxster S
- 2020 Porsche 718 Boxster S
- 2021 Porsche 718 Boxster S
- 2022 Porsche 718 Boxster S
- 2023 Porsche 718 Boxster S
- 2024 Porsche 718 Boxster S
- 2017 Porsche 718 Cayman
- 2018 Porsche 718 Cayman
- 2019 Porsche 718 Cayman
- 2020 Porsche 718 Cayman
- 2021 Porsche 718 Cayman
- 2022 Porsche 718 Cayman
- 2023 Porsche 718 Cayman
- 2026 Porsche 718 Cayman
- 2023 Porsche 718 Cayman GT4
- 2024 Porsche 718 Cayman GT4
- 2024 Porsche 718 Cayman GT4 RS
- 2022 Porsche 718 Cayman GTS
- 2023 Porsche 718 Cayman GTS
- 2024 Porsche 718 Cayman GTS
- 2017 Porsche 718 Cayman S
- 2018 Porsche 718 Cayman S
- 2019 Porsche 718 Cayman S
- 2020 Porsche 718 Cayman S
- 2021 Porsche 718 Cayman S
- 2022 Porsche 718 Cayman S
- 2023 Porsche 718 Cayman S
- 2018 Porsche 718 Spyder
- 2019 Porsche 718 Spyder
- 2020 Porsche 718 Spyder
- 2021 Porsche 718 Spyder
- 2022 Porsche 718 Spyder
- 2023 Porsche 718 Spyder
- 2024 Porsche 718 Spyder
- 2025 Porsche 718 Spyder
- 2024 Porsche 718 Spyder RS
- 2001 Porsche 911
- 2002 Porsche 911
- 2003 Porsche 911
- 2004 Porsche 911
- 2005 Porsche 911
- 2012 Porsche 911
- 2013 Porsche 911
- 2014 Porsche 911
- 2015 Porsche 911
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.