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K&N Engineering

K & N Engineering, Inc., "manufacturer of the world's best air filters", has been the innovative leader in air filter technology since 1963, serving the needs of the automotive, motorcycle, marine , industrial and military markets. Located in Riverside California, K & N also has another manufacturing facility in the United Kingdom.

K & N first developed air filters specifically for the motorcycle racing market. With the success K & N experienced in the motorcycle market, the Company decided to branch out to the automotive Motorsports market. K & N quickly grew to be the world's most widely used performance air filter in both the automotive and motorcycle markets.

Today, K & N equips about 80% of all off-road racing vehicles and wins in every major off-road event in the world, including Pikes Peak, the Baja 500 & 1000 and the grueling Paris to Dakar race. K & N also dominates the world's most prestigious and technical racing association with nine of twelve Formula One Teams using K & N air filters.

To keep on the cutting edge of technology, K & N has its own technical facilities that are devoted to product development and testing. The facilities have in-the-floor-chassis dynamometers, to ensure that all K & N air filters are technically designed for the highest increase in horsepower. Air restriction testing and development has yielded products such as our Generation II Fuel Injection Performance Kits, which lead the industry in horsepower gains!

K & N has capitalized on their superior racing heritage along with its superior air flow, increased dirt filtration, environmental friendliness and exclusive ten year, million mile limited warranty to catapult itself to the front of the performance air filtration industry. K & N has garnered numerous awards from SEMA, including "Manufacturer of the Year, 1994, 1996, 1997, and 2000".

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K&N Engineering - Replacement Air Filter

Part # : AC4096-1   |  Line: KAN
  • 1 year limited warranty
  • Flange Inside Diameter: 2.688 in (68 mm)
  • Base Outside Diameter: 4.5 in (114 mm)
  • Top Outside Diameter: 3.5 in (89 mm)
  • Length: 4 in (102 mm)
  • Top Style: Rubber
  • Flange Length: 0.625 in (16 mm)
  • Flange Angle: 0 degrees
  • Flange Offset: 0 in (0 mm)

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& Availability, enter your zip code.

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K&N Engineering - Air Filter

Part # : E2232   |  Line: KAN
  • manufacturer's defect warranty
  • Flange Inside Diameter: 2.75 in (70 mm)
  • Base Outside Diameter: 6.75 in (171 mm)
  • Top Outside Diameter: 5.875 in (149 mm)
  • Length: 3.25 in (83 mm)
  • Top Style: Metal
  • Flange Length: 0.75 in (19 mm)
  • Flange Angle: 0 degrees
  • Flange Offset: 0 in (0 mm)
  • Length (In): 6.750 Inch
  • Width (In): 6.750 Inch

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& Availability, enter your zip code.

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K&N Engineering - Air Filter

Part # : RC4340   |  Line: KAN
  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.688 in (68 mm) x 4.5 in (114 mm) x 3 in (76 mm) x 5 in (127 mm)
  • Length (In): 4.500 Inch
  • Width (In): 4.500 Inch

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& Availability, enter your zip code.

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K&N Engineering - Universal Chrome Filter

Part # : RC4490   |  Line: KAN
  • 1 year limited warranty
  • 2-3/4 Inch Flange, 5-3/16" B, 3-1/2" T, 4-5/16" H
  • Length (In): 5.188 Inch
  • Width (In): 5.188 Inch

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& Availability, enter your zip code.

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K&N Engineering - Air Filter

Part # : RC4500   |  Line: KAN
  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 5.188 in (132 mm) x 3.5 in (89 mm) x 5.125 in (130 mm)
  • Length (In): 5.188 Inch
  • Width (In): 5.188 Inch

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& Availability, enter your zip code.

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K&N Engineering - Air Filter

Part # : RC4620   |  Line: KAN
  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.563 in (65 mm) x 6.875 in (175 mm) x 5.875 in (149 mm) x 2.5 in (64 mm)
  • Length (In): 6.875 Inch
  • Width (In): 6.875 Inch

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& Availability, enter your zip code.

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K&N Engineering - Air Filter

Part # : RC4790   |  Line: KAN
  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 5.5 in (140 mm) x 4.5 in (114 mm) x 7 in (178 mm)
  • Length (In): 5.500 Inch
  • Width (In): 5.500 Inch

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& Availability, enter your zip code.

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K&N Engineering - Air Filter

Part # : RC4850   |  Line: KAN
  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 6.75 in (171 mm) x 5.875 in (149 mm) x 3.25 in (83 mm)
  • Length (In): 6.750 Inch
  • Width (In): 6.750 Inch

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& Availability, enter your zip code.

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K&N Engineering - Air Filter

Part # : RC5127   |  Line: KAN
  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.756 in (70 mm) x 5.039 in (128 mm) x 3.504 in (89 mm) x 3.15 in (80 mm)
  • Length (In): 5.031 Inch
  • Width (In): 5.031 Inch

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& Availability, enter your zip code.

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K&N Engineering - Air Filter

Part # : RC5133   |  Line: KAN
  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.756 in (70 mm) x 4.685 in (119 mm) x 3.504 in (89 mm) x 4.921 in (125 mm)
  • Length (In): 4.688 Inch
  • Width (In): 4.688 Inch

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& Availability, enter your zip code.

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K&N Engineering - Air Filter

Part # : RC5135   |  Line: KAN
  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.756 in (70 mm) x 5.039 in (128 mm) x 3.504 in (89 mm) x 4.331 in (110 mm)
  • Length (In): 5.031 Inch
  • Width (In): 5.031 Inch

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& Availability, enter your zip code.

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K&N Engineering - Air Filter

Part # : RC5144   |  Line: KAN
  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 4.75 in (121 mm) x 4 in (102 mm) x 7.875 in (200 mm)
  • Length (In): 4.750 Inch
  • Width (In): 4.750 Inch

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& Availability, enter your zip code.

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K&N Engineering - Air Filter

Part # : RC8410   |  Line: KAN
  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 5.25 in (133 mm) x 3.5 in (89 mm) x 4.344 in (110 mm)
  • Length (In): 5.188 Inch
  • Width (In): 5.188 Inch

For Pricing
& Availability, enter your zip code.

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K&N Engineering - Air Filter

Part # : RC9310   |  Line: KAN
  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 4.75 in (121 mm) x 3.5 in (89 mm) x 5.875 in (149 mm)
  • Length (In): 4.750 Inch
  • Width (In): 4.750 Inch

For Pricing
& Availability, enter your zip code.

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K&N Engineering - Air Filter

Part # : RC9350   |  Line: KAN
  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 4.688 in (119 mm) x 3.5 in (89 mm) x 4.875 in (124 mm)
  • Length (In): 4.688 Inch
  • Width (In): 4.688 Inch

For Pricing
& Availability, enter your zip code.

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K&N Engineering - Air Filter

Part # : RC9940   |  Line: KAN
  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 5.781 in (147 mm) x 3.5 in (89 mm) x 4.531 in (115 mm)
  • Length (In): 5.781 Inch
  • Width (In): 5.781 Inch

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& Availability, enter your zip code.

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K&N Engineering - Air Filter

Part # : RR2801   |  Line: KAN
  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 5.875 in (149 mm) x 5.25 in (133 mm) x 5 in (127 mm)
  • Length (In): 5.875 Inch
  • Width (In): 5.875 Inch

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& Availability, enter your zip code.

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K&N Engineering - Air Filter

Part # : RR2802   |  Line: KAN
  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 5.875 in (149 mm) x 5.25 in (133 mm) x 5 in (127 mm)
  • Length (In): 5.875 Inch
  • Width (In): 5.875 Inch

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& Availability, enter your zip code.

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K&N Engineering - Air Filter

Part # : RR2803   |  Line: KAN
  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 5.875 in (149 mm) x 5.25 in (133 mm) x 5 in (127 mm)
  • Length (In): 5.875 Inch
  • Width (In): 5.875 Inch

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& Availability, enter your zip code.

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K&N Engineering - Air Filter

Part # : RU3120   |  Line: KAN
  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 4 in (102 mm) x 2 in (51 mm) x 6 in (152 mm)
  • Length (In): 4 Inch
  • Width (In): 4 Inch

For Pricing
& Availability, enter your zip code.

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  • 1 year limited warranty
  • Flange Inside Diameter: 2.688 in (68 mm)
  • Base Outside Diameter: 4.5 in (114 mm)
  • Top Outside Diameter: 3.5 in (89 mm)
  • Length: 4 in (102 mm)
  • Top Style: Rubber
  • Flange Length: 0.625 in (16 mm)
  • Flange Angle: 0 degrees
  • Flange Offset: 0 in (0 mm)

For Pricing
& Availability, enter your zip code.

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Part # : AC4096-1   |  Line: KAN

  • manufacturer's defect warranty
  • Flange Inside Diameter: 2.75 in (70 mm)
  • Base Outside Diameter: 6.75 in (171 mm)
  • Top Outside Diameter: 5.875 in (149 mm)
  • Length: 3.25 in (83 mm)
  • Top Style: Metal
  • Flange Length: 0.75 in (19 mm)
  • Flange Angle: 0 degrees
  • Flange Offset: 0 in (0 mm)
  • Length (In): 6.750 Inch
  • Width (In): 6.750 Inch

For Pricing
& Availability, enter your zip code.

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Part # : E2232   |  Line: KAN

  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.688 in (68 mm) x 4.5 in (114 mm) x 3 in (76 mm) x 5 in (127 mm)
  • Length (In): 4.500 Inch
  • Width (In): 4.500 Inch

For Pricing
& Availability, enter your zip code.

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Part # : RC4340   |  Line: KAN

  • 1 year limited warranty
  • 2-3/4 Inch Flange, 5-3/16" B, 3-1/2" T, 4-5/16" H
  • Length (In): 5.188 Inch
  • Width (In): 5.188 Inch

For Pricing
& Availability, enter your zip code.

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Part # : RC4490   |  Line: KAN

  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 5.188 in (132 mm) x 3.5 in (89 mm) x 5.125 in (130 mm)
  • Length (In): 5.188 Inch
  • Width (In): 5.188 Inch

For Pricing
& Availability, enter your zip code.

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Part # : RC4500   |  Line: KAN

  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.563 in (65 mm) x 6.875 in (175 mm) x 5.875 in (149 mm) x 2.5 in (64 mm)
  • Length (In): 6.875 Inch
  • Width (In): 6.875 Inch

For Pricing
& Availability, enter your zip code.

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Part # : RC4620   |  Line: KAN

  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 5.5 in (140 mm) x 4.5 in (114 mm) x 7 in (178 mm)
  • Length (In): 5.500 Inch
  • Width (In): 5.500 Inch

For Pricing
& Availability, enter your zip code.

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Part # : RC4790   |  Line: KAN

  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 6.75 in (171 mm) x 5.875 in (149 mm) x 3.25 in (83 mm)
  • Length (In): 6.750 Inch
  • Width (In): 6.750 Inch

For Pricing
& Availability, enter your zip code.

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Part # : RC4850   |  Line: KAN

  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.756 in (70 mm) x 5.039 in (128 mm) x 3.504 in (89 mm) x 3.15 in (80 mm)
  • Length (In): 5.031 Inch
  • Width (In): 5.031 Inch

For Pricing
& Availability, enter your zip code.

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Part # : RC5127   |  Line: KAN

  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.756 in (70 mm) x 4.685 in (119 mm) x 3.504 in (89 mm) x 4.921 in (125 mm)
  • Length (In): 4.688 Inch
  • Width (In): 4.688 Inch

For Pricing
& Availability, enter your zip code.

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Part # : RC5133   |  Line: KAN

  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.756 in (70 mm) x 5.039 in (128 mm) x 3.504 in (89 mm) x 4.331 in (110 mm)
  • Length (In): 5.031 Inch
  • Width (In): 5.031 Inch

For Pricing
& Availability, enter your zip code.

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Part # : RC5135   |  Line: KAN

  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 4.75 in (121 mm) x 4 in (102 mm) x 7.875 in (200 mm)
  • Length (In): 4.750 Inch
  • Width (In): 4.750 Inch

For Pricing
& Availability, enter your zip code.

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Part # : RC5144   |  Line: KAN

  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 5.25 in (133 mm) x 3.5 in (89 mm) x 4.344 in (110 mm)
  • Length (In): 5.188 Inch
  • Width (In): 5.188 Inch

For Pricing
& Availability, enter your zip code.

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Part # : RC8410   |  Line: KAN

  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 4.75 in (121 mm) x 3.5 in (89 mm) x 5.875 in (149 mm)
  • Length (In): 4.750 Inch
  • Width (In): 4.750 Inch

For Pricing
& Availability, enter your zip code.

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Part # : RC9310   |  Line: KAN

  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 4.688 in (119 mm) x 3.5 in (89 mm) x 4.875 in (124 mm)
  • Length (In): 4.688 Inch
  • Width (In): 4.688 Inch

For Pricing
& Availability, enter your zip code.

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Part # : RC9350   |  Line: KAN

  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 5.781 in (147 mm) x 3.5 in (89 mm) x 4.531 in (115 mm)
  • Length (In): 5.781 Inch
  • Width (In): 5.781 Inch

For Pricing
& Availability, enter your zip code.

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Part # : RC9940   |  Line: KAN

  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 5.875 in (149 mm) x 5.25 in (133 mm) x 5 in (127 mm)
  • Length (In): 5.875 Inch
  • Width (In): 5.875 Inch

For Pricing
& Availability, enter your zip code.

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Part # : RR2801   |  Line: KAN

  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 5.875 in (149 mm) x 5.25 in (133 mm) x 5 in (127 mm)
  • Length (In): 5.875 Inch
  • Width (In): 5.875 Inch

For Pricing
& Availability, enter your zip code.

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Part # : RR2802   |  Line: KAN

  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 5.875 in (149 mm) x 5.25 in (133 mm) x 5 in (127 mm)
  • Length (In): 5.875 Inch
  • Width (In): 5.875 Inch

For Pricing
& Availability, enter your zip code.

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Part # : RR2803   |  Line: KAN

  • 1 year limited warranty
  • Round Tapered Universal Air Filter
  • 2.75 in (70 mm) x 4 in (102 mm) x 2 in (51 mm) x 6 in (152 mm)
  • Length (In): 4 Inch
  • Width (In): 4 Inch

For Pricing
& Availability, enter your zip code.

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Part # : RU3120   |  Line: KAN

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