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Vehicle Info NeededK&NPART NUMBER: 599-RU-1021
RU-1021 Universal Oval Tapered Clamp-On Air Filter
$9499
Ships on 09/09/2026
Lowest Price Guarantee4.5" (114.3) Flange Diameter
Oval Tapered Universal Clamp-On Air FilterHeight: 8 in. Flange Diameter: 4.500 in. Flange Length: 0.625 in. Top Style: Rubber Flange Angle: 0 Degrees Flange Offset: 0 Degrees
K&N RU-1021 Oval Tapered Universal Clamp-On Air Filter Features:
- Designed to increase horsepower and acceleration
- High airflow
- Excellent filtration
- Clamp-on
- Washable
- Reusable
- Malleable flanges
- Rugged construction
- Multiple layers of premium cotton gauze
Part TypeAir Filter
BrandK&N
Package Height8 in (203 mm)
Package Width13.5
Package Length20.0
Weight9.63 PG
Weight1.4 lb (0.6 kg)
Part CategoryPerformance Parts
Flange Length0.625 in (16 mm)
Top MaterialRubber
Top Outside Width4.5 in (114 mm)
Air Cleaner Top DesignK&N logo
Air Cleaner ShapeOval tapered
Top StyleRubber
Air Filter Large End Diameter5.875 in (149 mm)
Air Cleaner Top MaterialRubber
Filter StyleWashable
Air Filter Height8 in (203 mm)
Air Filter Bottom Measurement (In.)5.875 in. L x 3.250 in. W
Air Filter Top Measurement (In.)4.500 in. x 4.500 in.
Frame DesignFlexible
Flange Angle0 degrees
Base Outside Length5.875 in (149 mm)
Base Outside Width3.25 in (83 mm)
Flanges1
QuantitySold individually
Air Filter ShapeOval Tapered
Air Cleaner FilterCotton Gauze
Oil IncludedYes
Top Outside Length4.5 in (114 mm)
Flange TypeCentered
Filter Re-Oiling Amount1.42 oz (42 ml)
Air Filter StyleOval flanged
Flange Inside Diameter4.5 in (114 mm)
Air Cleaner Top FinishBlack
Part FitmentUniversal
Flange Offset0 in (0 mm)
WashableYes
Air Cleaner BaseBlack rubber
Package Qty1
Package TypeEA
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