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OE Quality
60-Day Returns
Hengst E3940LC Cabin Air Filter - Primary or Secondary
| Brand | Hengst E3940LC |
|---|---|
| Position | Primary |
| Filter Media Material | Carbon |
| Fits | Porsche · 87 vehicles |
Carbon media. Helps capture odors and airborne contaminants in the cabin air stream.
Cabin air filter. Keeps incoming air cleaner for a more comfortable interior.
Cross-references 9P1 819 631, 99157362300 and CUK 25 006 for the same application. See all 3.
$35.09Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
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Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Cabin Air Filter options
Carbon Cabin Air Filter for Porsche
The Hengst HEZ Cabin Air Filter E3940LC is a carbon cabin air filter for Porsche applications that call for cleaner interior air and controlled HVAC airflow. It is built for 2012-2025 Porsche 911, 718 Boxster, 718 Cayman, 718 Spyder, Boxster, and Cayman fitments listed below.
The HEZ Cabin Air Filter line focuses on cabin filtration performance with carbon media for everyday driving conditions. For Porsche 718 Boxster, 718 Cayman, 718 Spyder, and 911 owners, this filter supports replacement service when the cabin air system needs fresh filtration.
Key Features
- Brand: Hengst HEZ Cabin Air Filter
- Part number: E3940LC
- Carbon filter media for cabin air filtration
- Fits select Porsche 718 Boxster, 718 Cayman, 718 Spyder, 911, Boxster, and Cayman applications
- Cross-reference: 9P1 819 631, CUK 25 006
Fitment Details
- Fits 2023-2025 Porsche 718 Boxster, N/A
- Fits 2023-2025 Porsche 718 Cayman, N/A
- Fits 2023-2025 Porsche 718 Spyder, N/A
- Fits 2023-2025 Porsche 911, N/A
- Fits 2022 Porsche 718 Boxster, N/A
- Fits 2021-2022 Porsche 718 Cayman, N/A
- Fits 2022 Porsche 718 Spyder, N/A
- Fits 2022 Porsche 911, N/A
- Fits 2021 Porsche 718 Boxster, N/A
- Fits 2021 Porsche 718 Cayman, N/A
- Fits 2021 Porsche 718 Spyder, N/A
- Fits 2021 Porsche 911, N/A
- Fits 2017-2020 Porsche 718 Boxster, N/A
- Fits 2017-2020 Porsche 718 Cayman, N/A
- Fits 2016-2020 Porsche 911, N/A
- Fits 2016 Porsche Boxster, N/A
- Fits 2016 Porsche Cayman, N/A
- Fits 2012-2015 Porsche 911, Primary
- Fits 2013-2015 Porsche Boxster, Primary
- Fits 2014-2015 Porsche Cayman, Primary
- Fits 2012 Porsche Boxster, Secondary
What This Filter Helps Address
- Dust and airborne debris entering the cabin through the HVAC system
- Reduced cabin air freshness from a loaded filter
- Restricted airflow caused by a clogged cabin filter
- Odor control needs in carbon-filter applications
- Routine Porsche cabin air filter replacement service
Installation Notes and Tips
Verify the OE number and vehicle fitment before ordering, especially on Porsche 911, 718 Boxster, 718 Cayman, and 718 Spyder models with year-specific applications. Match the listed position and notes exactly, including Primary and Secondary configurations where shown. Replace the cabin filter during scheduled HVAC service to maintain proper airflow and filtration.
Quality Assurance
Hengst is an established filtration brand, and the HEZ Cabin Air Filter line uses carbon media for cabin air service. This part cross-references 9P1 819 631 and CUK 25 006 for the same application.
This part fits 87 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Submodel | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2025 | Porsche | 718 Boxster | — | — | 2.0L | H4 | N/A | Material: Carbon; HEZ Cabin Air Filter |
| 2025 | Porsche | 718 Cayman | — | — | 4.0L | H6 | N/A | Material: Carbon; HEZ Cabin Air Filter |
| 2025 | Porsche | 718 Spyder | — | — | 4.0L | H6 | N/A | Material: Carbon; HEZ Cabin Air Filter |
| 2025 | Porsche | 911 | — | Coupe | 3.7L | H6 | N/A | Material: Carbon; HEZ Cabin Air Filter |
| 2024 | Porsche | 718 Boxster | — | — | 2.0L | H4 | N/A | Material: Carbon; HEZ Cabin Air Filter |
| 2024 | Porsche | 718 Cayman | — | — | 4.0L | H6 | N/A | Material: Carbon; HEZ Cabin Air Filter |
| 2024 | Porsche | 718 Spyder | — | — | 4.0L | H6 | N/A | Material: Carbon; HEZ Cabin Air Filter |
| 2024 | Porsche | 911 | — | — | 3.7L | H6 | N/A | Material: Carbon; HEZ Cabin Air Filter |
| 2023 | Porsche | 718 Boxster | — | — | 4.0L | H6 | N/A | Material: Carbon; HEZ Cabin Air Filter |
| 2023 | Porsche | 718 Cayman | — | — | 4.0L | H6 | N/A | Material: Carbon; HEZ Cabin Air Filter |
| 2023 | Porsche | 718 Spyder | — | — | 4.0L | H6 | N/A | Material: Carbon; HEZ Cabin Air Filter |
| 2023 | Porsche | 911 | — | — | 4.0L | H6 | N/A | Material: Carbon; HEZ Cabin Air Filter |
| 2022 | Porsche | 718 Boxster | — | — | 4.0L | H6 | N/A | Material: Carbon; With OE No. 991 573 623 00 |
| 2022 | Porsche | 718 Boxster | — | — | 2.5L | H4 | N/A | Material: Carbon; With OE No. 991 573 623 00 |
| 2022 | Porsche | 718 Boxster | — | — | 2.0L | H4 | N/A | Material: Carbon; With OE No. 991 573 623 00 |
| 2022 | Porsche | 718 Cayman | — | — | 4.0L | H6 | N/A | Material: Carbon; With OE No. 991 573 623 00 |
| 2022 | Porsche | 718 Cayman | — | — | 2.5L | H4 | N/A | Material: Carbon; With OE No. 991 573 623 00 |
| 2022 | Porsche | 718 Cayman | — | — | 2.0L | H4 | N/A | Material: Carbon; With OE No. 991 573 623 00 |
| 2022 | Porsche | 718 Spyder | — | — | 4.0L | H6 | N/A | Material: Carbon; With OE No. 991 573 623 00 |
| 2022 | Porsche | 911 | — | — | 3.7L | H6 | N/A | Material: Carbon; With OE No. 9P1 819 631 |
| 2022 | Porsche | 911 | — | — | 3.0L | H6 | N/A | Material: Carbon; With OE No. 9P1 819 631 |
| 2021 | Porsche | 718 Boxster | — | — | 4.0L | H6 | N/A | Material: Carbon; with OE No. 991 573 623 00 |
| 2021 | Porsche | 718 Boxster | — | — | 2.5L | H4 | N/A | Material: Carbon; with OE No. 991 573 623 00 |
| 2021 | Porsche | 718 Boxster | — | — | 2.0L | H4 | N/A | Material: Carbon; with OE No. 991 573 623 00 |
| 2021 | Porsche | 718 Cayman | GTS 4.0 | — | 4.0L | H6 | N/A | Material: Carbon; with OE No. 991 573 623 00 |
| 2021 | Porsche | 718 Cayman | GT4 | — | 4.0L | H6 | N/A | Material: Carbon; With OE No. 991 573 623 00 |
| 2021 | Porsche | 718 Cayman | — | — | 2.5L | H4 | N/A | Material: Carbon; with OE No. 991 573 623 00 |
| 2021 | Porsche | 718 Cayman | — | — | 2.0L | H4 | N/A | Material: Carbon; with OE No. 991 573 623 00 |
| 2021 | Porsche | 718 Spyder | — | — | 4.0L | H6 | N/A | Material: Carbon; with OE No. 991 573 623 00 |
| 2021 | Porsche | 911 | — | — | 3.7L | H6 | N/A | Material: Carbon; with OE No. 9P1 819 631 |
| 2021 | Porsche | 911 | — | — | 3.0L | H6 | N/A | Material: Carbon; with OE No. 9P1 819 631 |
| 2020 | Porsche | 718 Boxster | — | — | 2.5L | H4 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2020 | Porsche | 718 Boxster | — | — | 2.0L | H4 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2020 | Porsche | 718 Cayman | — | — | 4.0L | H6 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2020 | Porsche | 718 Cayman | — | — | 2.5L | H4 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2020 | Porsche | 718 Cayman | — | — | 2.0L | H4 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2020 | Porsche | 911 | — | — | 3.0L | H6 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2019 | Porsche | 718 Boxster | — | — | 2.5L | H4 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2019 | Porsche | 718 Boxster | — | — | 2.0L | H4 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2019 | Porsche | 718 Cayman | — | — | 2.5L | H4 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2019 | Porsche | 718 Cayman | — | — | 2.0L | H4 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2019 | Porsche | 911 | — | — | 4.0L | H6 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2019 | Porsche | 911 | — | — | 3.8L | H6 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2019 | Porsche | 911 | — | — | 3.0L | H6 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2018 | Porsche | 718 Boxster | — | — | 2.5L | H4 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2018 | Porsche | 718 Boxster | — | — | 2.0L | H4 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2018 | Porsche | 718 Cayman | — | — | 2.5L | H4 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2018 | Porsche | 718 Cayman | — | — | 2.0L | H4 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2018 | Porsche | 911 | — | — | 4.0L | H6 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2018 | Porsche | 911 | — | — | 3.8L | H6 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2018 | Porsche | 911 | — | — | 3.0L | H6 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2017 | Porsche | 718 Boxster | — | — | 2.5L | H4 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2017 | Porsche | 718 Boxster | — | — | 2.0L | H4 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2017 | Porsche | 718 Cayman | — | — | 2.5L | H4 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2017 | Porsche | 718 Cayman | — | — | 2.0L | H4 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2017 | Porsche | 911 | — | — | 4.0L | H6 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2017 | Porsche | 911 | — | — | 3.8L | H6 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2017 | Porsche | 911 | — | — | 3.0L | H6 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2016 | Porsche | 911 | — | — | 4.0L | H6 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2016 | Porsche | 911 | — | — | 3.4L | H6 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2016 | Porsche | Boxster | — | — | 3.8L | H6 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2016 | Porsche | Boxster | — | — | 3.4L | H6 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2016 | Porsche | Boxster | — | — | 2.7L | H6 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2016 | Porsche | Cayman | — | — | 3.8L | H6 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2016 | Porsche | Cayman | — | — | 3.4L | H6 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2016 | Porsche | Cayman | — | — | 2.7L | H6 | N/A | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2015 | Porsche | 911 | — | — | 3.8L | H6 | Primary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2015 | Porsche | 911 | — | — | 3.4L | H6 | Primary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2015 | Porsche | Boxster | — | — | 3.4L | H6 | Primary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2015 | Porsche | Boxster | — | — | 2.7L | H6 | Primary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2015 | Porsche | Cayman | — | — | 3.4L | H6 | Primary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2015 | Porsche | Cayman | — | — | 2.7L | H6 | Primary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2014 | Porsche | 911 | — | — | 3.8L | H6 | Primary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2014 | Porsche | 911 | — | — | 3.4L | H6 | Primary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2014 | Porsche | Boxster | — | — | 3.4L | H6 | Primary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2014 | Porsche | Boxster | — | — | 2.7L | H6 | Primary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2014 | Porsche | Cayman | — | — | 3.4L | H6 | Primary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2014 | Porsche | Cayman | — | — | 2.7L | H6 | Primary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2013 | Porsche | 911 | — | — | 3.8L | H6 | Primary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2013 | Porsche | 911 | — | — | 3.4L | H6 | Primary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2013 | Porsche | Boxster | — | — | 3.4L | H6 | Primary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2013 | Porsche | Boxster | — | — | 2.7L | H6 | Primary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2012 | Porsche | 911 | — | — | 3.8L | H6 | Primary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2012 | Porsche | 911 | — | — | 3.6L | H6 | Primary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2012 | Porsche | 911 | — | — | 3.4L | H6 | Primary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2012 | Porsche | Boxster | — | — | 3.4L | H6 | Secondary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| 2012 | Porsche | Boxster | — | — | 2.9L | H6 | Secondary | Carbon cabin air filter optimized for various vehicle models to enhance filtration efficiency. |
| No rows match your filter. | ||||||||
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
9P1 819 63199157362300CUK 25 006