# Service bulletin 40/26 4407 A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned. - Type: Service bulletin - NHTSA id: 11034784 - Published by NHTSA: 2026\-07\-07 - Manufacturer's number: 40/26 4407 - Manufacturer's date: 2026\-06\-30 - NHTSA component: WHEELS - Manufacturer's system: Wheel: Wheel bolts ## NHTSA's summary Wheel Bolt Replacement Requirement \- Change from Wheel Bolts with Aluminum Washers to Wheel Bolts with Steel Washers \(40/26\) ## The document - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11034784-0001.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11034784-9999.pdf) The document is the manufacturer's. This site does not hold it. ## Components Wheels ## Vehicles listed - 2017 PORSCHE 718 - 2016 PORSCHE 718 BOXSTER - 2017 to 2025 PORSCHE 718 BOXSTER - 2026 PORSCHE 718 BOXSTER - 2021 to 2024 PORSCHE 718 BOXSTER GTS - 2017 to 2024 PORSCHE 718 BOXSTER S - 2016 PORSCHE 718 CAYMAN - 2017 to 2025 PORSCHE 718 CAYMAN - 2026 PORSCHE 718 CAYMAN - 2022 to 2024 PORSCHE 718 CAYMAN GT4 - 2024 PORSCHE 718 CAYMAN GT4 RS - 2022 to 2024 PORSCHE 718 CAYMAN GTS - 2017 to 2023 PORSCHE 718 CAYMAN S - 2018 to 2019 PORSCHE 718 SPYDER - 2020 PORSCHE 718 SPYDER - 2021 PORSCHE 718 SPYDER - 2022 to 2025 PORSCHE 718 SPYDER - 2026 PORSCHE 718 SPYDER - 2024 PORSCHE 718 SPYDER RS - 2002 to 2005 PORSCHE 911 - 2012 to 2026 PORSCHE 911 - 2005 to 2011 PORSCHE 911 \(997\) - 2022 PORSCHE 911 4S - 2002 to 2017 PORSCHE 911 CARRERA - 2020 to 2026 PORSCHE 911 CARRERA - 2009 PORSCHE 911 CARRERA 4 - 2012 to 2013 PORSCHE 911 CARRERA 4 - 2023 PORSCHE 911 CARRERA 4 - 2003 PORSCHE 911 CARRERA 4 CABRIOLET - 2012 PORSCHE 911 CARRERA 4 GTS - 2022 to 2023 PORSCHE 911 CARRERA 4 GTS - 2003 PORSCHE 911 CARRERA 4S - 2009 PORSCHE 911 CARRERA 4S - 2012 PORSCHE 911 CARRERA 4S - 2023 PORSCHE 911 CARRERA 4S - 2003 PORSCHE 911 CARRERA CABRIOLET - 2012 PORSCHE 911 CARRERA GTS - 2022 to 2024 PORSCHE 911 CARRERA GTS - 2005 to 2021 PORSCHE 911 CARRERA S - 2023 PORSCHE 911 CARRERA S - 2005 to 2006 PORSCHE 911 CARRERA S CABRIOLET - 2023 to 2024 PORSCHE 911 CARRERA T - 2023 to 2024 PORSCHE 911 DAKAR - 2003 to 2013 PORSCHE 911 GT2 - 2019 PORSCHE 911 GT2 - 2010 to 2011 PORSCHE 911 GT2 RS - 2018 to 2019 PORSCHE 911 GT2 RS - 2003 to 2016 PORSCHE 911 GT3 - 2018 to 2019 PORSCHE 911 GT3 - 2021 to 2026 PORSCHE 911 GT3 - 2008 PORSCHE 911 GT3 RS - 2010 to 2011 PORSCHE 911 GT3 RS - 2016 PORSCHE 911 GT3 RS - 2019 PORSCHE 911 GT3 RS - 2023 to 2024 PORSCHE 911 GT3 RS - 2022 to 2023 PORSCHE 911 GT3 TOURING - 2016 PORSCHE 911 R - 2011 PORSCHE 911 SPEEDSTER - 2003 PORSCHE 911 TARGA - 2009 PORSCHE 911 TARGA 4 - 2012 to 2021 PORSCHE 911 TARGA 4 - 2023 PORSCHE 911 TARGA 4 - 2009 PORSCHE 911 TARGA 4S - 2012 PORSCHE 911 TARGA 4S - 2014 PORSCHE 911 TARGA 4S - 2023 PORSCHE 911 TARGA 4S - 2023 PORSCHE 911 TARGA GTS - 2002 to 2023 PORSCHE 911 TURBO - 2005 PORSCHE 911 TURBO S - 2010 to 2012 PORSCHE 911 TURBO S - 2021 to 2023 PORSCHE 911 TURBO S - 2015 PORSCHE 918 - 2015 PORSCHE 918 SPYDER - 2016 PORSCHE 918 SPYDER - 2009 PORSCHE 987 CAYMAN - 2002 PORSCHE 996 TURBO - 2008 PORSCHE 997 \(911\) - 2002 to 2006 PORSCHE BOXSTER - 2012 to 2015 PORSCHE BOXSTER - 2005 to 2011 PORSCHE BOXSTER \(987\) - 2002 to 2005 PORSCHE BOXSTER S - 2011 to 2014 PORSCHE BOXSTER S - 2012 PORSCHE BOXSTER SPYDER - PORSCHE BRAKE FLUID - 2023 PORSCHE CARRERA - 2023 PORSCHE CARRERA 4 - 2023 PORSCHE CARRERA 4 GTS - 2023 PORSCHE CARRERA 4S - 2004 to 2005 PORSCHE CARRERA GT - 2023 PORSCHE CARRERA GTS - 2023 PORSCHE CARRERA S - 2006 PORSCHE CARRERRA GT - 2003 to 2026 PORSCHE CAYENNE - 2011 PORSCHE CAYENNE \(E2\) - 2024 to 2026 PORSCHE CAYENNE COUPE - 2013 to 2015 PORSCHE CAYENNE DIESEL - 2014 PORSCHE CAYENNE E\-HYBRID - 2019 to 2026 PORSCHE CAYENNE E\-HYBRID - 2024 to 2026 PORSCHE CAYENNE E\-HYBRID COUPE - 2020 to 2022 PORSCHE CAYENNE GT - 2006 to 2010 PORSCHE CAYENNE GTS - 2013 to 2014 PORSCHE CAYENNE GTS - 2016 PORSCHE CAYENNE GTS - 2021 to 2026 PORSCHE CAYENNE GTS - 2024 to 2026 PORSCHE CAYENNE GTS COUPE - 2003 to 2009 PORSCHE CAYENNE S - 2011 to 2015 PORSCHE CAYENNE S - 2018 to 2024 PORSCHE CAYENNE S - 2024 to 2026 PORSCHE CAYENNE S COUPE - 2015 to 2018 PORSCHE CAYENNE S E\-HYBRID - 2020 PORSCHE CAYENNE S E\-HYBRID - 2011 to 2013 PORSCHE CAYENNE S HYBRID - 2010 PORSCHE CAYENNE TRANSSYBERIA - 2003 to 2015 PORSCHE CAYENNE TURBO - 2018 to 2020 PORSCHE CAYENNE TURBO - 2023 PORSCHE CAYENNE TURBO - 2020 PORSCHE CAYENNE TURBO COUPE - 2024 to 2026 PORSCHE CAYENNE TURBO E\-HYBRID - 2024 to 2026 PORSCHE CAYENNE TURBO E\-HYBRID COUPE - 2022 to 2024 PORSCHE CAYENNE TURBO GT - 2025 PORSCHE CAYENNE TURBO GT COUPE - 2006 to 2010 PORSCHE CAYENNE TURBO S - 2014 PORSCHE CAYENNE TURBO S - 2016 PORSCHE CAYENNE TURBO S - 2019 to 2023 PORSCHE CAYENNE TURBO S E\-HYBRID - 2020 PORSCHE CAYENNE TURBO S HYB COUPE - 2005 PORSCHE CAYMAN - 2006 to 2015 PORSCHE CAYMAN - 2020 PORSCHE CAYMAN - 2016 PORSCHE CAYMAN GT4 - 2020 to 2021 PORSCHE CAYMAN GT4 - 2020 to 2021 PORSCHE CAYMAN GTS - 2012 PORSCHE CAYMAN R - 2005 PORSCHE CAYMAN S - 2006 PORSCHE CAYMAN S - 2012 PORSCHE CAYMAN S - 2014 PORSCHE CAYMAN S - PORSCHE CENTER WHEEL MOUNTING KIT - 2023 PORSCHE EDITION 50 YEAR - 2002 PORSCHE GT2 - 2014 PORSCHE MACAN - 2015 to 2026 PORSCHE MACAN - 2024 PORSCHE MACAN 4 - 2024 to 2026 PORSCHE MACAN 4 ELECTRIC - 2025 PORSCHE MACAN 4S ELECTRIC - 2024 to 2026 PORSCHE MACAN ELECTRIC - 2017 to 2026 PORSCHE MACAN GTS - 2015 to 2026 PORSCHE MACAN S - 2018 PORSCHE MACAN SPORT EDITION - 2024 PORSCHE MACAN T - 2015 to 2018 PORSCHE MACAN TURBO - 2020 to 2024 PORSCHE MACAN TURBO - 2024 to 2026 PORSCHE MACAN TURBO ELECTRIC - 2010 to 2026 PORSCHE PANAMERA - 2011 to 2024 PORSCHE PANAMERA 4 - 2026 PORSCHE PANAMERA 4 - 2017 to 2026 PORSCHE PANAMERA 4 E\-HYBRID - 2018 to 2024 PORSCHE PANAMERA 4 EXECUTIVE - 2018 PORSCHE PANAMERA 4 HYBRID - 2018 PORSCHE PANAMERA 4 HYBRID EXECUTI - 2018 PORSCHE PANAMERA 4 HYBRID SPORT T - 2018 to 2020 PORSCHE PANAMERA 4 SPORT TURISMO - 2010 to 2024 PORSCHE PANAMERA 4S - 2019 to 2023 PORSCHE PANAMERA 4S E\-HYBRID - 2025 to 2026 PORSCHE PANAMERA 4S E\-HYBRID - 2017 to 2024 PORSCHE PANAMERA 4S EXECUTIVE - 2017 to 2024 PORSCHE PANAMERA 4S SPORT TURISMO - 2022 to 2024 PORSCHE PANAMERA E\-HYBRID - 2010 to 2016 PORSCHE PANAMERA GTS - 2019 to 2021 PORSCHE PANAMERA GTS - 2023 to 2026 PORSCHE PANAMERA GTS - 2019 to 2020 PORSCHE PANAMERA GTS SPORT TURISM - 2010 to 2016 PORSCHE PANAMERA S - 2011 to 2016 PORSCHE PANAMERA S E\-HYBRID - 2011 to 2014 PORSCHE PANAMERA S HYBRID - 2010 to 2020 PORSCHE PANAMERA TURBO - 2025 to 2026 PORSCHE PANAMERA TURBO E\-HYBRID - 2017 to 2020 PORSCHE PANAMERA TURBO EXECUTIVE - 2012 to 2016 PORSCHE PANAMERA TURBO S - 2021 PORSCHE PANAMERA TURBO S - 2017 to 2023 PORSCHE PANAMERA TURBO S E\-HYBRID - 2025 to 2026 PORSCHE PANAMERA TURBO S E\-HYBRID - 2021 PORSCHE PANAMERA TURBO S EXECUTIV - 2018 PORSCHE PANAMERA TURBO S HYBRID - 2018 PORSCHE PANAMERA TURBO S HYBRID E - 2018 PORSCHE PANAMERA TURBO S HYBRID S - 2018 to 2020 PORSCHE PANAMERA TURBO SPORT TURI - PORSCHE PIWIS TESTER III - PORSCHE REPLACEMENT ENGINE 2.0L - PORSCHE REPLACEMENT ENGINE 2.5L - PORSCHE REPLACEMENT ENGINE 3.0LHP - PORSCHE REPLACEMENT ENGINE 3.0LLP - PORSCHE SAFETY BELT - PORSCHE SKI BAG - 2020 to 2026 PORSCHE TAYCAN - 2026 PORSCHE TAYCAN 4 - 2021 to 2026 PORSCHE TAYCAN 4 CROSS TURISMO - 2020 to 2026 PORSCHE TAYCAN 4S - 2021 to 2026 PORSCHE TAYCAN 4S CROSS TURISMO - 2020 to 2023 PORSCHE TAYCAN CROSS TURISMO ## Recalls for the same vehicles and component - [2024646](/recalls/tc/2024646.md), 2024-10-28: Wheels - [24V809000](/recalls/nhtsa/24V809000.md), 2024-10-28: WHEELS:LUGS/NUTS/BOLTS/STUDS - [12V558000](/recalls/nhtsa/12V558000.md), 2012-12-03: WHEELS:HUB; SUSPENSION:REAR:AXLE:SPINDLE - [11V285000](/recalls/nhtsa/11V285000.md), 2011-06-10: WHEELS:LUGS/NUTS/BOLTS/STUDS - [2011194](/recalls/tc/2011194.md), 2011-05-12: Wheels ## Other bulletins for the same vehicles and component - [SPTL2609](/bulletins/11037868.md), 2026-10-02, Service bulletin: WHEELS; STEERING; SUSPENSION. Special Tools and Equipment Information for alignment machines \- Q3 2026 Software Spec Update Available - [No. 64\-26\-1](/bulletins/11037856.md), 2026-10-02, Service bulletin: STEERING; WHEELS; SUSPENSION. Technical Information for Yellow Warning Message "Rear Axle Steering Has Failed" in Instrument Cluster: Replace Servo Motors for Rear Axle Steering - [No. 35\-26](/bulletins/11037853.md), 2026-10-02, Service bulletin: WHEELS. Manufacturer's Certificate for Approval: Wheels and Tires - [No. 34\-26](/bulletins/11037852.md), 2026-10-02, Service bulletin: WHEELS. Manufacturer's Certificate for Approval: Wheels and Tires. Note that this bulletin covers MY25\+ 911 GT3, GT3 Touring, and GT3 S/C - [No. 2605\-1](/bulletins/11037087.md), 2026-09-04, Service bulletin: STEERING; SUSPENSION; WHEELS. Information for Advanced Technical Information on E3PA, G3 Pressure Sensor for Leveling System \- Implausible Signal - [SPTL2608](/bulletins/11037083.md), 2026-09-04, Service bulletin: WHEELS; SUSPENSION; STEERING. Special Tools and Equipment Information for alignment machines \- Q2 2026 Software Spec Update Available - [24\-26](/bulletins/11037040.md), 2026-09-04, Service bulletin: WHEELS. Manufacturer's Certificate for approved wheels and tires. Also includes model year 2024 911 S/T and GT3 Touring. - [23\-26](/bulletins/11037039.md), 2026-09-04, Service bulletin: WHEELS. Manufacturer's Certificate for approved wheels and tires - [109/21 4407](/bulletins/11034803.md), 2026-07-08, Service bulletin: WHEELS. Noise Symptom – Clicking Noises from the Area of the Front Axle: Observe Specified Procedure \(SY 109/21\) - [53/26 4005](/bulletins/11034801.md), 2026-07-08, Service bulletin: WHEELS. Additional Test Instructions for Rim Damage on the Front Axle \(53/26\) JSON: [/v1/bulletins/11034784](/v1/bulletins/11034784) [Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%2040%2F26%204407&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11034784&vehicle=Service%20bulletin%2040%2F26%204407)