NHTSA ID Number: 10236585
Manufacturer Communication Number: SSM 51648
Summary
Some 2020-2022 F-Super Duty vehicles equipped with a 6.7L engine may experience a lack of power due to snow packing of the engine air cleaner when operating in extremely snowy conditions. This may also be due to ice forming in the air intake while operating in temperatures below -22°F (-30°C). Diagnostic trouble code (DTC) P1548 may be present in the powertrain control module (PCM). To supplement heavy snow environment pre-filter service kit (service part LC3Z-9K635-AA), a front grill cover (service part NC3Z-19A413-A) is now available for service but is not a warrantable item. It is recommended that the front grill cover be removed at temperatures greater than 10°F (-12°C) and reinstall in subsequent winter seasons in order to maintain optimal vehicle performance.
21 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
FORD | F-250 SD | 2020-2022 |
| FORD | F-350 SD | 2020-2022 |
| FORD | F-450 SD | 2020-2022 |
| FORD | F-550 SD | 2020-2022 |
| FORD | F-600 SD | 2020-2022 |
| FORD | F-650 SD | 2020-2022 |
| FORD | F-750 SD | 2020-2022 |
1 Associated Document
Manufacturer Communications
SSM 51648
2020-2022 F-Super Duty – 6.7L – Lack Of Power And/Or DTC P1548 When Operating In Snowy Conditions And/Or Extreme Cold Weather
NHTSA ID Number: 10205480
Manufacturer Communication Number: SSM 50342
Summary
Some 2020-2022 F-Super Duty vehicles equipped with a 6.7L engine may experience a lack of power due to snow packing of the engine air cleaner when operating in extremely snowy conditions. Diagnostic trouble code (DTC) P1548 may be present in the powertrain control module (PCM). A heavy snow environment pre-filter service kit (service part LC3Z-9K635-AA) is now available for use but is not a warrantable item. It is recommended that the service kit be removed at temperatures greater than 50°F (10°C) and reinstall in subsequent winter seasons in order to maintain optimal vehicle performance.
1 Associated Document
Manufacturer Communications
SSM 50342 – 2020-2022 F-Super Duty – 6.7L – Lack Of Power And/Or DTC P1548 When Operating In Snowy Conditions – Heavy Snow Environment Pre-Filter Service Kit
NHTSA ID Number: 10189578
Manufacturer Communication Number: SSM 49686
Summary
Some 2020-2021 F-Super Duty vehicles equipped with a 6.7L engine may experience a lack of power due to snow packing of the engine air cleaner when operating in extremely snowy conditions. Diagnostic trouble code (DTC) P1548 may be present in the powertrain control module (PCM). A heavy snow environment pre-filter service kit (service part LC3Z-9K635-AA) is now available for use but is not a warrantable item. It is recommended that the service kit be removed at temperatures greater than 50F (10C) and reinstall in subsequent winter seasons in order to maintain optimal vehicle performance. The service kit instructions mention that air filter FA-2031 is required, however the heavy snow environment pre-filter service kit can be used with either engine air filter FA-1951, or FA-2031 once it is available.
1 Associated Document
Manufacturer Communications
SSM 49686: 2020-2021 F-Super Duty – 6.7L – Lack Of Power And/Or DTC P1548 When Operating In Snowy Conditions – Heavy Snow Environment Pre-Filter Service Kit
- ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
- RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime
- 4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants
- CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (based on the average miles driven per year of 15,000 miles)
- ULTIMATE LONGEVITY: No-hassle limited lifetime warranty on stock replacement K&N air filters- limitations apply
- COMPATIBLE with Ford F-250 Super Duty 6.2L 2017-2019, F-350 Super Duty 6.2L 2017-2019, F-450 Super Duty 6.8L 2017-2019, F-550 Super Duty 6.8L 2017-2019
- REPLACES FORD HC3Z-9601B, FRAM CA12183, PUROLATOR A48220, WIX WA10697
- IMPROVE PERFORMANCE by changing your vehicle's air filter at least every 12,000 miles (or as recommended in your car owner's manual); to ensure your vehicle's engine has the clean and efficient air flow it needs for fast acceleration and power.
- AVOID INCREASED ENGINE WEAR caused by dirty air intake filters that may allow damaging particles to get into the engine.
- FACTORY FIT FOR EASY INSTALLATION.
- COMPATIBLE with Ford F-250 Super Duty 6.2L 2020-2021, F-250 Super Duty 7.3L 2020-2021, F-350 Super Duty 6.2L 2020-2021, F-350 Super Duty 7.3L 2020-2021, F-450 Super Duty 7.3L 2020, F-550 Super Duty 7.3L 2020
- REPLACES FORD LC3Z-9601A, MOTORCRAFT FA-1950, PUROLATOR A41444, WIX WA10906
- IMPROVE PERFORMANCE by changing your vehicle's air filter at least every 12,000 miles (or as recommended in your car owner's manual); to ensure your vehicle's engine has the clean and efficient air flow it needs for fast acceleration and power.
- AVOID INCREASED ENGINE WEAR caused by dirty air intake filters that may allow damaging particles to get into the engine.
- FACTORY FIT FOR EASY INSTALLATION.
- [Vehicle Fitment]: Compatible with Ford Excursion 2000-2003 V8 7.3L, F-250 Super Duty 1999-2003 V8 7.3L, F-350 Super Duty 1999-2003 V8 7.3L, F-450 Super Duty 1999-2003 V8 7.3L, F-550 Super Duty 1999-2003 V8 7.3L
- [Reference Number]: CA9400, LAF9096, A2931C, A9096, 6728, PA5446, A25446, 46728, PXA46728, 1C3Z9601AA, 2U2Z9601AA
- [Specifications]: ① Location: Front; ② Length: 13.31 inch; ③ Width: 7.13 inch; ④ Height: 3.27 inch; ⑤ Shape: Rectangular; ⑥ Washable: No; ⑦ Reusable: No; ⑧ Package Quantity: 1; ⑨ Packaging Type: Box
- [Enhanced Performance]: A-Premium Engine Air Filter uses fine filtration media to capture all kinds of debris without obstructing airflow, removing dangerous particles, improving engine performance and increasing engine efficiency
- [Replacement Suggestion]: To ensure that the engine air filter provides your engine with clean air, recommended replacement every 12 months, 12,000 miles or as specified by the vehicle manufacturer.
- RUGGED CONSTRUCTION: K&N Advantage Plus Air Filters are manufactured with durable, premium materials to last for up to 24,000 miles of use.
- EXTENDED LIFE 24K: K&N Advantage Plus Air Filter provides 2x longer life compared to standard 12,000-mile filters.
- SUPERIOR FILTRATION & PROTECTION: K&N uses a specially-treated premium media that provides up to 99.5% efficiency to protect your engine.
- IMPROVE ENGINE PERFORMANCE: The specially-treated filter media provides improved airflow to your engine for premium engine performance (Compared to K&N Advantage 18k mile air filters)
- REPLACE EVERY 24K Miles: Engine air filter only needs to be replaced every 24,000 Miles under normal highway driving conditions (2 years based on the average miles driven per year of 12,000 miles)
Last update on 2026-05-24 / Affiliate links / Images from Amazon Product Advertising API
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