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Vehicle Info NeededK&NPART NUMBER: 599-RX-4120-1
RX-4120-1 Round Tapered X-Stream Clamp-On Air Filter
$14699
Ships on 10/20/2026
Lowest Price Guarantee3.313'' (84 mm) Flange Diameter
Round Tapered X-Stream Air FilterFlange Inside Diameter: 3.313" (84 mm) Flange Length: 0.938" (24 mm) Flange Type: Centered Height: 4.25" (108 mm) Base Outside Diameter: 4.875" (124 mm) Top Outside Diameter: 4" (102 mm)
- Pleated filter built in top
- Washable and reusable
- Low restriction
- Clamp-on design
K&N XStream Top Universal Air Filters are designed with a filter within the filter's top. This feature takes performance to the next level by providing higher air flow and outstanding filtration. All XStream air filters contain ultra-strong, molded rubber flanges to reduce vibration and provide a secure attachment. These washable/reusable air filters can be stretched up to 1/16" (1.5mm) to fit in-between sizes.
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Features:
- Designed to Increase HP and Acceleration
- Built-in Pleated Filter in Top
- Numerous Applications
- Ultra-Strong Rubber Flanges
Part TypeAir Filter
Product LineK&N XStream Universal Air Filters
BrandK&N
Package Height4.25 in (108 mm)
Package Width6.6
Package Length7.3
Weight1.1 PG
Weight0.9 lb (0.4 kg)
Part CategoryPerformance Parts
Flange Length0.938 in (24 mm)
Top MaterialNone
Air Cleaner Size (In.)4 7/8 diameter
Air Cleaner Top DesignK&N logo
Air Cleaner ShapeRound tapered
Top StyleX-Stream
Package Contents1 Air Filter
Filter Height4.25 in (107.95 mm)
Air Filter Large End Diameter4.875 in (124 mm)
Air Cleaner Top MaterialPlastic
Top Material/FinishNone
Base Outside Diameter4.875 in (124 mm)
Frame DesignFlexible
Flange Angle0 degrees
Base StyleRaised
Flange Angle (Deg)0
Flanges1
QuantitySold as a kit
Air Filter ShapeRound Tapered
Air Cleaner FilterRed cotton gauze
Footnote 11/4-20 Jack Nut Into Top
Wing Nut IncludedNo
Top Outside Diameter4 in (102 mm)
Oil IncludedYes
Flange TypeCentered
Filter Re-Oiling Amount0.6 oz (18 ml)
Product StyleRound Tapered Universal Air Filter
Flange Inside Diameter3.313 in (84 mm)
Air Cleaner Top FinishBlack
Part FitmentUniversal
Flange Offset0 in (0 mm)
WashableYes
Air Cleaner BaseBlack rubber
Vendor Part NumberRX-4120-1
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
