RF-1021 - K&N Universal Filter - Oval Filter

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Part #: RF-1021
Notes: Universal Air Filter
Oval Tapered Filter
Metal Top
MSRP: $102.99
Your Price: $65.99

Specs

Air Filter Shape Oval Straight
Base Outside Diameter 5.87 in (149 mm)
Base Outside Length 5.875 in (149 mm)
Base Outside Width 5.875 in (149 mm)
Filter Material Cotton Gauze
Filter Re-Oiling Amount 1.42 oz (42 ml)
Flange Angle 0 degrees
Flange Inside Diameter 4.5 in (114 mm)
Flange Length 0.625 in (16 mm)
Flange Offset 0 in (0 mm)
Flange Type Centered
Flanges 1
Height 8 in (203 mm)
Inner Wire No
Package Contents 1 Air Filter
Package Quantity 1
Product Style Oval Tapered Universal Air Filter
Top Material/Finish Stainless Steel
Top Outside Length 4.5 in (114 mm)
Top Outside Width 3.25 in (83 mm)
Top Style Metal
Weight 1.6 lb (0.7 kg)

This Item Also Available In

Part Number Price Notes & Specs
R-0640 $40.99 Notes Universal Air Filter
OvalStraight Filter
Rubber Top
Air Filter Shape Oval
Filter Material Cotton Gauze
Filter Re-Oiling Amount 0.3 oz (9 ml)
Flange Angle 30 degrees
Flange Inside Diameter 1.5 in (38 mm)
Flange Length 1 in (25 mm)
Flange Offset 0 in (0 mm)
Flange Type Angled
Flanges 1
Height 2.75 in (70 mm)
Outside Length 4.5 in (114 mm)
Outside Width 3.75 in (95 mm)
Package Contents 1 Air Filter
Package Quantity 1
Product Style Oval Straight Universal Air Filter
Top Material/Finish None
Top Style Rubber
Weight 0.7 lb (0.3 kg)
R-0642 $72.99 Notes Universal Air Filter
OvalStraight Filter
Rubber Top
Air Filter Shape Oval
Filter Material Cotton Gauze
Flange Angle 30 degrees
Flange Inside Diameter 1.5 in (38 mm)
Flange Length 1 in (25 mm)
Flange Offset 0 in (0 mm)
Flange Type Angled
Flanges 1
Height 2.75 in (70 mm)
Outside Length 4.5 in (114 mm)
Outside Width 3.5 in (89 mm)
Package Contents 2 Air Filters
Package Quantity 2
Product Style Oval Straight Universal Air Filter
This Product Includes 2 Filters
Top Material/Finish None
Top Style Rubber
Weight 1.3 lb (0.6 kg)
R-1100 $37.99 Notes Universal Air Filter
OvalStraight Filter
Rubber Top
Fits Honda ATV Applications
Air Filter Large End Diameter 3 in (76 mm)
Air Filter Shape Round Tapered
Base Inside Diameter 0 in (0 mm)
Base Outside Diameter 3 in (76 mm)
Filter Material Cotton Gauze
Flange Angle 40 degrees
Flange Center to Center 0 in (0 mm)
Flange Inside Diameter 1.688 in (43 mm)
Flange Length 1.5 in (38 mm)
Flange Offset 0 in (0 mm)
Flange Type Angled
Flanges 1
Height 4 in (102 mm)
Inner Wire No
Package Contents 1 Air Filter, 1 K&N 1/2oz Filter Oil
Package Quantity 1
Product Style Round Tapered Universal Air Filter
Top Inside Diameter 0 in (0 mm)
Top Material/Finish None
Top Outside Diameter 2 in (51 mm)
Top Style Rubber
Weight 0.6 lb (0.3 kg)
R-1390 $50.99 Notes Universal Air Filter
OvalStraight Filter
Rubber Top
Air Filter Shape Oval
Filter Material Cotton Gauze
Filter Re-Oiling Amount 0.21 oz (6 ml)
Flange Angle 0 degrees
Flange Inside Diameter 2.25 in (57 mm)
Flange Length 0.625 in (16 mm)
Flange Offset 0 in (0 mm)
Flange Type Centered
Flanges 1
Height 2 in (51 mm)
Outside Length 4.5 in (114 mm)
Outside Width 3.75 in (95 mm)
Package Contents 1 Air Filter
Package Quantity 1
Product Style Oval Straight Universal Air Filter
Top Material/Finish None
Top Style Rubber
Weight 0.6 lb (0.3 kg)
RA-0700 $52.99 Notes Universal Air Filter
OvalStraight Filter
Rubber Top
Air Filter Shape Oval
Filter Material Cotton Gauze
Filter Re-Oiling Amount 0.3 oz (9 ml)
Flange Angle 0 degrees
Flange Inside Diameter 2.063 in (52 mm)
Flange Length 0.875 in (22 mm)
Flange Offset 0.5 in (13 mm)
Flange Type Offset
Flanges 1
Footnote 1 Base Has 1/4" Vent
Height 1.5 in (38 mm)
Inner Wire No
Outside Length 7 in (178 mm)
Outside Width 4.5 in (114 mm)
Package Contents 1 Air Filter
Package Quantity 1
Product Style Oval Straight Universal Air Filter
Top Material/Finish None
Top Style Rubber
Weight 1 lb (0.4 kg)
RA-070V $51.99 Notes Universal Air Filter
OvalStraight Filter
Metal Top
Air Filter Shape Oval
Filter Material Cotton Gauze
Filter Re-Oiling Amount 0.3 oz (9 ml)
Flange Angle 0 degrees
Flange Center to Center 0 in (0 mm)
Flange Inside Diameter 2.063 in (52 mm)
Flange Length 0.875 in (22 mm)
Flange Offset 0.5 in (13 mm)
Flange Type Offset
Flanges 1
Footnote 1 Base Has 1/4" Vent
Height 1.5 in (38 mm)
Inner Wire No
Inside Length 0 in (0 mm)
Inside Width 0 in (0 mm)
Outside Length 7 in (178 mm)
Outside Width 4.5 in (114 mm)
Package Contents 1 Air Filter
Package Quantity 1
Product Style Oval Straight Universal Air Filter
Top Material/Finish Chrome
Top Style Metal
Weight 1.1 lb (0.5 kg)
RA-0710 $49.99 Notes Universal Air Filter
OvalStraight Filter
Rubber Top
Air Filter Shape Oval
Filter Material Cotton Gauze
Filter Re-Oiling Amount 0.37 oz (11 ml)
Flange Angle 0 degrees
Flange Center to Center 0 in (0 mm)
Flange Inside Diameter 2.063 in (52 mm)
Flange Length 0.875 in (22 mm)
Flange Offset 0.5 in (13 mm)
Flange Type Offset
Flanges 1
Footnote 1 Base Has 1/4" Vent
Height 2 in (51 mm)
Inner Wire No
Inside Length 0 in (0 mm)
Inside Width 0 in (0 mm)
Outside Length 7 in (178 mm)
Outside Width 4.5 in (114 mm)
Package Contents 1 Air Filter
Package Quantity 1
Product Style Oval Straight Universal Air Filter
Top Material/Finish None
Top Style Rubber
Weight 1 lb (0.4 kg)
RA-0720 $44.99 Notes Universal Air Filter
OvalStraight Filter
Rubber Top
Air Filter Shape Oval
Filter Material Cotton Gauze
Filter Re-Oiling Amount 0.62 oz (18 ml)
Flange Angle 0 degrees
Flange Center to Center 0 in (0 mm)
Flange Inside Diameter 2.063 in (52 mm)
Flange Length 0.875 in (22 mm)
Flange Offset 0.5 in (13 mm)
Flange Type Offset
Flanges 1
Footnote 1 Base Has 1/4" Vent
Height 3 in (76 mm)
Inner Wire No
Inside Length 0 in (0 mm)
Inside Width 0 in (0 mm)
Outside Length 7 in (178 mm)
Outside Width 4.5 in (114 mm)
Package Contents 1 Air Filter
Package Quantity 1
Product Style Oval Straight Universal Air Filter
Top Material/Finish None
Top Style Rubber
Weight 1.2 lb (0.5 kg)
RA-0750 $52.99 Notes Universal Air Filter
OvalStraight Filter
Rubber Top
Air Filter Shape Oval
Filter Material Cotton Gauze
Filter Re-Oiling Amount 0.3 oz (9 ml)
Flange Angle 0 degrees
Flange Inside Diameter 2.563 in (65 mm)
Flange Length 0.875 in (22 mm)
Flange Offset 0.5 in (13 mm)
Flange Type Offset
Flanges 1
Height 1.5 in (38 mm)
Inner Wire No
Outside Length 7 in (178 mm)
Outside Width 4.5 in (114 mm)
Package Contents 1 Air Filter
Package Quantity 1
Product Style Oval Straight Universal Air Filter
Top Material/Finish None
Top Style Rubber
Weight 1 lb (0.4 kg)
RA-075V $60.99 Notes Universal Air Filter
OvalStraight Filter
Metal Top
Air Filter Shape Oval
Filter Material Cotton Gauze
Filter Re-Oiling Amount 0.3 oz (9 ml)
Flange Angle 0 degrees
Flange Inside Diameter 2.563 in (65 mm)
Flange Length 0.875 in (22 mm)
Flange Offset 0.5 in (13 mm)
Flange Type Offset
Flanges 1
Height 1.5 in (38 mm)
Inner Wire No
Outside Length 7 in (178 mm)
Outside Width 4.5 in (114 mm)
Package Contents 1 Air Filter
Package Quantity 1
Product Style Oval Straight Universal Air Filter
Top Material/Finish Chrome
Top Style Metal
Weight 1 lb (0.5 kg)
RA-0760 $59.99 Notes Universal Air Filter
OvalStraight Filter
Rubber Top
Air Filter Shape Oval
Filter Material Cotton Gauze
Filter Re-Oiling Amount 0.37 oz (11 ml)
Flange Angle 0 degrees
Flange Inside Diameter 2.563 in (65 mm)
Flange Length 0.875 in (22 mm)
Flange Offset 0.5 in (13 mm)
Flange Type Offset
Flanges 1
Height 2 in (51 mm)
Inner Wire No
Outside Length 7 in (178 mm)
Outside Width 4.5 in (114 mm)
Package Contents 1 Air Filter
Package Quantity 1
Product Style Oval Straight Universal Air Filter
Top Material/Finish None
Top Style Rubber
Weight 1 lb (0.5 kg)
RA-076V $68.99 Notes Universal Air Filter
OvalStraight Filter
Metal Top
Air Filter Shape Oval
Filter Material Cotton Gauze
Filter Re-Oiling Amount 0.41 oz (12 ml)
Flange Angle 0 degrees
Flange Inside Diameter 2.563 in (65 mm)
Flange Length 0.875 in (22 mm)
Flange Offset 0.5 in (13 mm)
Flange Type Offset
Flanges 1
Height 2 in (51 mm)
Inner Wire No
Outside Length 7 in (178 mm)
Outside Width 4.5 in (114 mm)
Package Contents 1 Air Filter
Package Quantity 1
Product Style Oval Straight Universal Air Filter
Top Material/Finish Chrome
Top Style Metal
Weight 1.2 lb (0.5 kg)
RA-0770 $56.99 Notes Universal Air Filter
OvalStraight Filter
Rubber Top
Air Filter Shape Oval
Filter Material Cotton Gauze
Filter Re-Oiling Amount 0.57 oz (17 ml)
Flange Angle 0 degrees
Flange Center to Center 0 in (0 mm)
Flange Inside Diameter 2.563 in (65 mm)
Flange Length 0.875 in (22 mm)
Flange Offset 0.5 in (13 mm)
Flange Type Offset
Flanges 1
Height 3 in (76 mm)
Inner Wire No
Inside Length 0 in (0 mm)
Inside Width 0 in (0 mm)
Outside Length 7 in (178 mm)
Outside Width 4.5 in (114 mm)
Package Contents 1 Air Filter
Package Quantity 1
Product Style Oval Straight Universal Air Filter
Top Material/Finish None
Top Style Rubber
Weight 1 lb (0.5 kg)
RA-077V $51.99 Notes Universal Air Filter
OvalStraight Filter
Metal Top
Air Filter Shape Oval
Filter Material Cotton Gauze
Filter Re-Oiling Amount 0.62 oz (18 ml)
Flange Angle 0 degrees
Flange Inside Diameter 2.563 in (65 mm)
Flange Length 0.875 in (22 mm)
Flange Offset 0.5 in (13 mm)
Flange Type Offset
Flanges 1
Height 3 in (76 mm)
Inner Wire No
Outside Length 7 in (178 mm)
Outside Width 4.5 in (114 mm)
Package Contents 1 Air Filter
Package Quantity 1
Product Style Oval Straight Universal Air Filter
Top Material/Finish Chrome
Top Style Metal
Weight 1.2 lb (0.5 kg)
RC-0981 $43.99 Notes Universal Air Filter
Oval Tapered Filter
Metal Top
Air Filter Shape Oval Straight
Base Outside Length 4 in (102 mm)
Base Outside Width 3 in (76 mm)
Filter Material Cotton Gauze
Filter Re-Oiling Amount 0.27 oz (8 ml)
Flange Angle 0 degrees
Flange Center to Center 0 in (0 mm)
Flange Inside Diameter 2.125 in (54 mm)
Flange Length 0.625 in (16 mm)
Flange Offset 0.438 in (11 mm)
Flange Type Offset
Flanges 1
Height 2.75 in (70 mm)
Inner Wire No
Package Contents 1 Air Filter
Package Quantity 1
Product Style Oval Tapered Universal Air Filter
Top Material/Finish Chrome
Top Outside Length 3 in (76 mm)
Top Outside Width 2 in (51 mm)
Top Style Metal
Weight 0.5 lb (0.2 kg)
RC-0982 $81.99 Notes Universal Air Filter
Oval Tapered Filter
Metal Top
Fits Honda/Kawasaki/Suzuki/Yamaha Motorcycle / Powersports Applications
Air Filter Shape Oval Straight
Base Outside Length 4 in (102 mm)
Base Outside Width 3 in (76 mm)
Filter Material Cotton Gauze
Flange Angle 0 degrees
Flange Inside Diameter 2.125 in (54 mm)
Flange Length 0.625 in (16 mm)
Flange Offset 0.438 in (11 mm)
Flange Type Offset
Flanges 1
Height 2.75 in (70 mm)
Package Contents 2 Air Filters
Package Quantity 2
Product Style Oval Tapered Universal Air Filter
This Product Includes 2 Filters
Top Material/Finish Chrome
Top Outside Length 3 in (76 mm)
Top Outside Width 2 in (51 mm)
Top Style Metal
Weight 1 lb (0.4 kg)
RC-0983 $114.99 Notes Universal Air Filter
Oval Tapered Filter
Metal Top
Air Filter Shape Oval Straight
Base Outside Length 4 in (102 mm)
Base Outside Width 3 in (76 mm)
Filter Material Cotton Gauze
Flange Angle 0 degrees
Flange Inside Diameter 2.125 in (54 mm)
Flange Length 0.625 in (16 mm)
Flange Offset 0.438 in (11 mm)
Flange Type Offset
Flanges 1
Height 2.75 in (70 mm)
Inner Wire No
Outside Length 4 in (102 mm)
Outside Width 3 in (76 mm)
Package Contents 3 Air Filters
Package Quantity 3
Product Style Oval Tapered Universal Air Filter
This Product Includes 3 Filters
Top Material/Finish Chrome
Top Outside Length 3 in (76 mm)
Top Outside Width 2 in (51 mm)
Top Style Metal
Weight 1.1 lb (0.5 kg)
RC-0984 $145.99 Notes Universal Air Filter
Oval Tapered Filter
Metal Top
Fits Honda/Kawasaki/Suzuki/Yamaha Motorcycle / Powersports Applications
Air Filter Shape Oval Straight
Base Outside Length 4 in (102 mm)
Base Outside Width 3 in (76 mm)
Filter Material Cotton Gauze
Flange Angle 0 degrees
Flange Center to Center 0 in (0 mm)
Flange Inside Diameter 2.125 in (54 mm)
Flange Length 0.625 in (16 mm)
Flange Offset 0.438 in (11 mm)
Flange Type Offset
Flanges 1
Height 2.75 in (70 mm)
Inner Wire No
Inside Length 0 in (0 mm)
Inside Width 0 in (0 mm)
Outside Length 4 in (102 mm)
Outside Width 3 in (76 mm)
Package Contents 4 Air Filters
Package Quantity 4
Product Style Oval Tapered Universal Air Filter
This Product Includes 4 Filters
Top Material/Finish Chrome
Top Outside Length 3 in (76 mm)
Top Outside Width 2 in (51 mm)
Top Style Metal
Weight 1.7 lb (0.8 kg)
RC-1500 $70.99 Notes Universal Air Filter
OvalStraight Filter
Metal Top
Air Filter Shape Oval
Filter Material Cotton Gauze
Filter Re-Oiling Amount 0.97 oz (29 ml)
Flange Angle 0 degrees
Flange Inside Diameter 2.75 in (70 mm)
Flange Length 0.625 in (16 mm)
Flange Offset 0 in (0 mm)
Flange Type Centered
Flanges 1
Height 5 in (127 mm)
Outside Length 6.25 in (159 mm)
Outside Width 4 in (102 mm)
Package Contents 1 Air Filter
Package Quantity 1
Product Style Oval Straight Universal Air Filter
Top Material/Finish Chrome
Top Style Metal
Weight 1.2 lb (0.6 kg)
RC-1520 $73.99 Notes Universal Air Filter
OvalStraight Filter
Metal Top
Air Filter Shape Oval
Filter Material Cotton Gauze
Filter Re-Oiling Amount 1.36 oz (40 ml)
Flange Angle 0 degrees
Flange Inside Diameter 2.75 in (70 mm)
Flange Length 0.625 in (16 mm)
Flange Offset 0 in (0 mm)
Flange Type Centered
Flanges 1
Height 7 in (178 mm)
Outside Length 6.25 in (159 mm)
Outside Width 4 in (102 mm)
Package Contents 1 Air Filter
Package Quantity 1
Product Style Oval Straight Universal Air Filter
Top Material/Finish Chrome
Top Style Metal
Weight 1.3 lb (0.6 kg)
RC-1540 $75.99 Notes Universal Air Filter
OvalStraight Filter
Metal Top
Air Filter Shape Oval
Filter Material Cotton Gauze
Filter Re-Oiling Amount 1.16 oz (34 ml)
Flange Angle 10 degrees
Flange Inside Diameter 2.75 in (70 mm)
Flange Length 1 in (25 mm)
Flange Offset 0 in (0 mm)
Flange Type Angled
Flanges 1
Height 6 in (152 mm)
Outside Length 6.25 in (159 mm)
Outside Width 4 in (102 mm)
Package Contents 1 Air Filter
Package Quantity 1
Product Style Oval Straight Universal Air Filter
Top Material/Finish Chrome
Top Style Metal
Weight 1.3 lb (0.6 kg)
RC-1820 $43.99 Notes Universal Air Filter
Oval Tapered Filter
Metal Top
Fits Yamaha Motorcycle / Powersports Applications
Air Filter Shape Oval Straight
Base Outside Length 4 in (102 mm)
Base Outside Width 3 in (76 mm)
Filter Material Cotton Gauze
Filter Re-Oiling Amount 0.2 oz (6 ml)
Flange Angle 0 degrees
Flange Center to Center 0 in (0 mm)
Flange Inside Diameter 2 in (51 mm)
Flange Length 0.625 in (16 mm)
Flange Offset 0.5 in (13 mm)
Flange Type Offset
Flanges 1
Footnote 1 Base Has 1-1/8" Vent
Height 2.75 in (70 mm)
Inner Wire No
Outside Length 3 in (76 mm)
Package Contents 1 Air Filter
Package Quantity 1
Product Style Oval Tapered Universal Air Filter
Top Material/Finish Chrome
Top Outside Length 3 in (76 mm)
Top Outside Width 2 in (51 mm)
Top Style Metal
Weight 0.5 lb (0.2 kg)
RC-1822 $81.99 Notes Universal Air Filter
Oval Tapered Filter
Metal Top
Fits Ducati/Kawasaki Motorcycle / Powersports Applications
Air Filter Shape Oval Straight
Base Outside Length 4 in (102 mm)
Base Outside Width 3 in (76 mm)
Filter Material Cotton Gauze
Flange Angle 0 degrees
Flange Inside Diameter 2 in (51 mm)
Flange Length 0.625 in (16 mm)
Flange Offset 0.5 in (13 mm)
Flange Type Offset
Flanges 1
Height 2.75 in (70 mm)
Package Contents 2 Air Filters
Package Quantity 2
Product Style Oval Tapered Universal Air Filter
This Product Includes 2 Filters
Top Material/Finish Chrome
Top Outside Length 3 in (76 mm)
Top Outside Width 2 in (51 mm)
Top Style Metal
Weight 0.8 lb (0.4 kg)
RC-1824 $140.99 Notes Universal Air Filter
Oval Tapered Filter
Metal Top
Fits Kawasaki/Suzuki/Yamaha Motorcycle / Powersports Applications
Air Filter Shape Oval Straight
Base Outside Length 4 in (102 mm)
Base Outside Width 3 in (76 mm)
Filter Material Cotton Gauze
Flange Angle 0 degrees
Flange Inside Diameter 2 in (51 mm)
Flange Length 0.625 in (16 mm)
Flange Offset 0.5 in (13 mm)
Flange Type Offset
Flanges 1
Height 2.75 in (70 mm)
Package Contents 4 Air Filters
Package Quantity 4
Product Style Oval Tapered Universal Air Filter
This Product Includes 4 Filters
Top Material/Finish Chrome
Top Outside Length 3 in (76 mm)
Top Outside Width 2 in (51 mm)
Top Style Metal
Weight 1.6 lb (0.7 kg)
RC-1980 $55.99 Notes Universal Air Filter
OvalStraight Filter
Metal Top
Air Filter Shape Oval
Filter Material Cotton Gauze
Filter Re-Oiling Amount 0.37 oz (11 ml)
Flange Angle 0 degrees
Flange Center to Center 0 in (0 mm)
Flange Inside Diameter 2.438 in (62 mm)
Flange Length 0.625 in (16 mm)
Flange Offset 0 in (0 mm)
Flange Type Centered
Flanges 1
Height 2 in (51 mm)
Inner Wire No
Inside Length 0 in (0 mm)
Inside Width 0 in (0 mm)
Outside Length 7 in (178 mm)
Outside Width 4.5 in (114 mm)
Package Contents 1 Air Filter
Package Quantity 1
Product Style Oval Straight Universal Air Filter
Top Material/Finish Chrome
Top Style Metal
Weight 1.2 lb (0.5 kg)

All Fitments

UNIVERSAL
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
0 - 0 NON APPLICATION SPECIFIC ALL ALL ALL ALL ALL ALL

Product Description

K&N’s Universal Air Filters are designed and manufactured for a wide variety of applications. Regardless of the angle, offset diameter of the air intake, there is a K&N Universal air filter for your equipment. All filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16” (1.5mm) to fit in-between sizes. K&N Universal air filters are available in round, tapered (cone style) and oval designs, for just about any special application.

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