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Vehicle Info NeededK&NPART NUMBER: 599-E-0644
E-0644 Replacement Air Filter Fits Select Ford F-250 SD, Ford F-350 SD, Ford F-450 SD, Ford F-550 SD
$12599
Ships on Nov 02, 2026
Lowest Price GuaranteeReplacement Air FilterSelect Ford F-250 SD, Ford F-350 SD, Ford F-450 SD, Ford F-550 SD
K&N E-0644 Features:
K& N's replacement High-Flow Air Filters are designed to increase horsepower while providing exceptional engine protection, and are covered by K& N's No-Hassle Lifetime Limited Warranty.
- 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
- 6 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 (5 years based on the average miles driven per year of 15,000 miles)
- REUSABLE K& N FILTER SAVES YOU MONEY: A K& N washable, reusable air filter will save you up to $125 vs. purchasing multiple disposable filters (compared to MSRP in USD of corresponding OE filters for 200,000 miles of highway driving)
- ULTIMATE LONGEVITY: on stock replacement K& N air filters- limitations apply
- EASY INSTALLATION: K& N Air Filters are pre-oiled and ready to drop into your factory air box- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains
- REDUCES WASTE: Over 200 million disposable air filters and their packaging waste wind up in landfills each year- reusable filters help reduce waste in our landfills
- Air Filter Material: Cotton Gauze
- Air Filter Shape: Oval
- Filter Re-Oiling Amount: 8.3 oz (246 ml)
- Flange Angle: 0 degrees
- Flange Inside Diameter: 0 in (0 mm)
- Flange Length: 0.281 in (7 mm)
- Flanges: 1
- Frame Design: Flexible
- Height: 8.938 in (227 mm)
- Inner Wire: No
- Inside Length: 0 in (0 mm)
- Inside Width: 0 in (0 mm)
- Item Type: High Performance
- Oil Included: Yes
- Outside Length: 9.25 in (235 mm)
- Outside Width: 6.5 in (165 mm)
- Overall Filter Efficiency: Up To 99% Efficiency
- Pre-Screened: No
- Top Material: None
- Top Style: Rubber
- Washable: Yes
Breakthrough Air Filtration Design
K&N high-performance air filters improve acceleration and increase horsepower output. These durable filters are available in a multiple-layer pleated, high-flow oiled cotton gauze or dryflow to enhance filtration and overall performance. Each OE-style air filter provides virtually unrestricted air flow with exceptional filtration and is washable, reusable, and environmentally friendly.
Part TypeAir Filter
Product LineK&N High-Performance OE-Style Replacement Air Filters
BrandK&N
Package Height8.938 in (227 mm)
Package Width12.2
Package Length12.4
Weight4.32 PG
Weight4 lb (1.8 kg)
Part CategoryReplacement Parts
Flange Length0.281 in (7 mm)
Top MaterialNone
Flanges1
Air Filter Width6.5 in (165.1 mm)
Air Filter ShapeOval
Inner WireNo
Oil IncludedYes
Air Filter Length9.25 in (234.95 mm)
Inside Length0 in (0 mm)
Top StyleRubber
Filter Re-Oiling Amount8.3 oz (246 ml)
Air Filter Height8.94 in (227.076 mm)
Flange Inside Diameter0 in (0 mm)
Outside Width6.5 in (165 mm)
Outside Length9.25 in (235 mm)
Part FitmentDirect Fit
WashableYes
Inside Width0 in (0 mm)
Frame DesignFlexible
Flange Angle0 degrees
Vendor Part NumberE-0644
Package Qty1
Package TypeEA
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