K&N Engineering E-0644HBK DryFlow Replacement Air Filter for 2017-2018 Ford Super Duty 6.7L Diesel

K&N washable, reusable Diesel Dryflow Air Filters feature a state-of-the-art design of layered; cotton & synthetic media engineered to improve airflow and capture contaminants and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's No-Hassle Lifetime Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box. Associated products: 99-0624 Filter Cleaner; Synthetic, 32oz Spray

• Proudly Designed, Engineered, and Made in the USA: Made with premium materials and supported by dedicated, U.S.-based customer service.

Upgrade the factory air filtration system in your 2017-2018 Ford F-250 or F-350 Super Duty with the K&N Engineering E-0644HBK DryFlow Replacement Air Filter. Designed for 6.7L diesel applications, this washable and reusable filter uses layered cotton and synthetic media to promote improved airflow while capturing contaminants before they reach the engine. Its drop-in design installs directly into the factory air box for a straightforward replacement without extensive modifications.

The K&N Engineering E-0644HBK is engineered for long-term service and is designed to last for the life of your vehicle when properly maintained. The dry media construction eliminates the need for filter oil, while the reusable design helps reduce replacement waste and ongoing maintenance costs. For cleaning support, K&N recommends the 99-0624 Synthetic Filter Cleaner, sold separately. This performance air filter is proudly designed, engineered, and made in the USA using premium materials and is backed by K&N's No-Hassle Lifetime Limited Warranty.

Key Product Specifications and Technical Data

• Brand: K&N Engineering
• Part Number: E-0644HBK
• Filter Type: Washable, reusable DryFlow replacement air filter
• Media Construction: Layered cotton and synthetic filter media
• Installation Style: Direct drop-in replacement for the factory air box
• Vehicle Application: 2017-2018 Ford F-250 and F-350 Super Duty
• Engine Application: 6.7L V8 diesel
• Maintenance: Cleanable and reusable; synthetic filter cleaner recommended

What's Included

• One K&N Engineering E-0644HBK DryFlow replacement air filter

Fitment: Designed for select 2017-2018 Ford F-250 Super Duty and Ford F-350 Super Duty trucks equipped with the 6.7L V8 diesel engine. Verify vehicle configuration and factory air-box compatibility before installation. This product may require emissions compliance acknowledgment depending on local regulations.

Features:

• Airflow Performance: Layered cotton and synthetic media are engineered to support increased airflow and help improve engine breathing.
• Reusable DryFlow Design: Washable, oil-free filter media is built for repeated use and long-term service.
• Factory Air-Box Compatibility: Direct drop-in design installs easily into the original air-box assembly.
• Long-Term Protection: Designed to capture contaminants and backed by K&N's No-Hassle Lifetime Limited Warranty.

Fitments:
2017 Ford F-250 Super Duty King Ranch
2017 Ford F-250 Super Duty Lariat
2017 Ford F-250 Super Duty Platinum
2017 Ford F-250 Super Duty XL
2017 Ford F-250 Super Duty XLT
2017 Ford F-350 Super Duty King Ranch
2017 Ford F-350 Super Duty Lariat
2017 Ford F-350 Super Duty Platinum
2017 Ford F-350 Super Duty XL
2017 Ford F-350 Super Duty XLT
2018 Ford F-250 Super Duty King Ranch
2018 Ford F-250 Super Duty Lariat
2018 Ford F-250 Super Duty Limited
2018 Ford F-250 Super Duty Platinum
2018 Ford F-250 Super Duty XL
2018 Ford F-250 Super Duty XLT
2018 Ford F-350 Super Duty King Ranch
2018 Ford F-350 Super Duty Lariat
2018 Ford F-350 Super Duty Limited
2018 Ford F-350 Super Duty Platinum
2018 Ford F-350 Super Duty XL
2018 Ford F-350 Super Duty XLT
2019 Ford F-250 Super Duty King Ranch
2019 Ford F-250 Super Duty Lariat
2019 Ford F-250 Super Duty Limited
2019 Ford F-250 Super Duty Platinum
2019 Ford F-250 Super Duty XL
2019 Ford F-250 Super Duty XLT
2019 Ford F-350 Super Duty King Ranch
2019 Ford F-350 Super Duty Lariat
2019 Ford F-350 Super Duty Limited
2019 Ford F-350 Super Duty Platinum
2019 Ford F-350 Super Duty XL
2019 Ford F-350 Super Duty XLT

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1