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Vehicle Info NeededK&NPART NUMBER: 599-RU-1820
RU-1820 Oval Tapered Universal Clamp-On Air Filter Flange Dia - F: 2 in. , 51mm
$5799
Ships on 09/15/2026
Lowest Price Guarantee2 in. (51 mm) Flange Diameter
Oval Tapered Clamp-On Air FilterFlange Dia - F: 2'', 51mm Length - L: 2.75'', 70mm Base Dim MA: 4'', 102mm Base Dim SA: 3'', 76mm Top Dim MA: 3.5'', 89mm Top Dim SA: 2.5'', 64mm Top Style: Rubber Flange Length: FL: 0.625'', 16mm
1/pkg
For use with racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications.
- Fits A Wide Variety Of Applications
- Strong Pliable Rubber Flanges
- Absorb Vibrations
- Allow For Secure Attachment
- Can Stretch Up To 0.0625 in.
Let Your Engine Breathe
K&N Oval Tapered Universal Filters consist of an oiled cotton gauze filter with rubber clamp-on flanges, offering superior airflow and particulate filtration while providing a flexible mount to ensure a secure attachment.
Part TypeAir Filter
Product LineK&N Oval Tapered Universal Air Filters
BrandK&N
Package Height2.75 in (70 mm)
Package Width4.7
Package Length4.8
Weight0.1 PG
Weight0.5 lb (0.2 kg)
Part CategoryPerformance Parts
Flange Length0.625 in (16 mm)
Top MaterialNone
ShapeOval Straight
Top Outside Width2.5 in (64 mm)
Flange Center To Center0 in (0 mm)
Carb/Air Horn Dia2 in (50.8 mm)
Top StyleRubber
Air Filter Bottom Measurement (In.)4.000 L x 3.000 W
Air Filter Top Measurement (In.)3.500 L x 2.500 W
Frame DesignFlexible
Flange Angle0 degrees
Base Outside Length4 in (102 mm)
Base Outside Width3 in (76 mm)
Flanges1
QuantitySold individually
Overall Length13.13 in (333.5 mm)
MaterialRubber Base
Air Filter ShapeOval Straight
Inner WireNo
Oil IncludedYes
Top Outside Length3.5 in (89 mm)
Flange TypeOffset
Filter Re-Oiling Amount0.2 oz (6 ml)
Air Filter StyleConical
Flange Inside Diameter2 in (51 mm)
Part FitmentUniversal
Inlet Flange Inside Diameter2 in (50.8 mm)
Flange Offset0.5 in (13 mm)
WashableYes
Vendor Part NumberRU-1820
Package Qty1
Package TypeEA
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