Air Filters

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle.

Features:

• Designed to provide increased horsepower and torque.
• Pleated media provides a large filtration area, offering long service intervals.
• Multiple layers of woven cotton gauze media offer excellent filtration.
• Application-specific base seal and sealing bead.
• Made in the USA for over 40 years.
• Washable and reusable, pre-oiled and ready to ride!

Specifications:

• Filte r Material: Cotton Gauze
• Washable: Yes
• Height: 0.813in (21mm)
• Outside Length: 7.375in (187mm)
• Outside Width: 5.188in (132mm)
• Filter Re-Oiling Amount: 0.52oz (15ml)

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance while providing excellent engine protection for your motorcycle.

Features:

• Designed to provide increased horsepower and torque.
• Pleated media provides a large filtration area offering long service intervals.
• Multiple layers of woven cotton gauze media offer excellent filtration.
• Application-specific base seal and sealing bead.
• Made in the USA for over 40 years.
• Washable and reusable, pre-oiled and ready to ride!

The K&N RK-3942 High-Flow Air Intake System increases engine intake airflow and delivers more horsepower & torque to your Harley-Davidson® motorcycle. The intake system increases power by eliminating the stock OE air cleaner and replacing it with a complete High-Flow Air Intake System. The sturdy, custom aluminium backing plate mounts directly to the throttle body via an aluminium integrated, internal-run breather system. The intake system comes with a K&N Air Filter for high airflow and long service intervals. The K&N High-Flow Air Filter is washable, reusable, pre-oiled and ready for installation.

Features:

• Designed for Harley-Davidson motorcycles.
• Increase horsepower and torque.
• Easy to install.
• Made in the USA.

Specifications:

• Estima ted Horsepower Gain: 9.32 HP @ 4803 RPM
• Replacement Filter: E-3980
• Air Filter Material: Cotton Gauze
• Air Filter Height: 56mm
• Inlet Diameter: 33mm
• Overall Height: 56mm

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance while providing excellent engine protection for your motorcycle.

Features:

• Designed to provide increased horsepower and torque.
• Pleated media provides a large filtration area, offering long service intervals.
• Multiple layers of woven cotton gauze media offer excellent filtration.
• Application-specific base seal and sealing bead.
• Made in the USA for over 40 years.
• Washable and reusable, pre-oiled and ready to ride!

Specifications:

• Filte r Material: Cotton Gauze
• Washable: Yes
• Height: 154mm
• Outside Diameter: 113mm
• Flange Inside Diameter: 60mm
• Flange Length: 19mm
• Flange Type: Centred
• Filter Re-Oiling Amount: 42ml

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle.

Features:

• 2x air filters, backing plates and hardware included.
• Designed to provide increased horsepower and torque.
• Pleated media provides a large filtration area offering long service intervals.
• Multiple layers of woven cotton gauze media offer excellent filtration.
• Application-specific base seal and sealing bead.
• Made in the USA for over 40 years.
• Washable and reusable, pre-oiled and ready to ride!

Specifications:

• Heigh t: 2in (51mm).
• Washable: Yes.
• Filter Material: Cotton Gauze.

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance while providing excellent engine protection for your motorcycle.

Features:

• Designed to provide increased horsepower and torque.
• Pleated media provides a large filtration area, offering long service intervals.
• Multiple layers of woven cotton gauze media offer excellent filtration.
• Application-specific base seal and sealing bead.
• Made in the USA for over 40 years.
• Washable and reusable, pre-oiled and ready to ride!

Specifications:

• Filte r Material: Cotton Gauze
• Washable: Yes
• Height: 21mm
• Outside Length: 133mm
• Outside Width: 108mm

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle.

Features:

• Designed to provide increased horsepower and torque.
• Pleated media provides a large filtration area, offering long service intervals.
• Multiple layers of woven cotton gauze media offers excellent filtration.
• Application-specific base seal and sealing bead.
• Made in the USA for over 40 years.
• Washable and reusable, pre-oiled and ready to ride!

Specifications:

• Washa ble: Yes
• Filter Material: Cotton Gauze
• Height: 206mm
• Filter Re-Oiling Amount: 23ml

All Balls OEM replacement air filters are manufactured to meet or exceed OEM specifications. Constructed to fit the factory air box and are direct replacements to OEM air filters. The premium filtering media prevents dirt and dust from entering your engine while maintaining excellent airflow.

• OEM replacement air filter
• Meets or exceeds OEM specifications
• Fits factory air box
• Excellent airflow
• Premium filtration

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance while providing excellent engine protection for your motorcycle.

Features:

• Designed to provide increased horsepower and torque.
• Pleated media provides a large filtration area, offering long service intervals.
• Multiple layers of woven cotton gauze media offer excellent filtration.
• Application-specific base seal and sealing bead.
• Made in the USA for over 40 years.
• Washable and reusable, pre-oiled and ready to ride!

Specifications:

• Heigh t: 2.5in (64mm)
• Washable: Yes
• Filter Material: Cotton Gauze
• Width: 5.688in (144mm)
• Length: 11.063in (281mm)
• Weight: 1.2 lb (0.5kg)
• Filter Re-Oiling Amount: 0.54oz (16ml)

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance while providing excellent engine protection for your motorcycle.

Features:

• Designed to provide increased horsepower and torque.
• Pleated media provides a large filtration area, offering long service intervals.
• Multiple layers of woven cotton gauze media offer excellent filtration.
• Application-specific base seal and sealing bead.
• Made in the USA for over 40 years.
• Washable and reusable, pre-oiled and ready to ride!

Specifications:

• Filter Material: Cotton Gauze
• Washable: Yes
• Height: 127mm
• Outside Diameter: 114mm
• Flange Inside Diameter: 73mm
• Flange Length: 16mm
• Flange Type: Centred
• Filter Re-Oiling Amount: 23ml

This K&N racing air filter has just two layers of cotton to provide even lower air restriction than our replacement air filter for street vehicles. Unlike K&N replacement air filters, fuel management modifications will be necessary with this racing filter. K&N racing air filters are washable and reusable.

Features:

• Designed to increase horsepower and acceleration.
• Designed for racing and track applications, not for street use.
• Washable and reusable air filter.
• Low restriction.

Specifications:

• Filte Material: Cotton Gauze
• Washable: Yes
• Height: 89mm
• Inside Diameter: 114mm
• Outside Diameter: 149mm
• Filter Re-Oiling Amount: 22ml

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle.

Features:

• Designed to provide increased horsepower and torque.
• Filter comes un-oiled with oil packet.
• Multiple layers of woven cotton gauze media offer excellent filtration.
• Application-specific base seal and sealing bead.
• Pleated media provides a large filtration area, offering long service intervals.
• Washable and reusable

Specifications:

• Height: 2.62in (67mm)
• Washable: Yes
• Filter Material: Cotton Gauze
• Length: 5.5in (140mm)
• Width: 3.87in (98mm)

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle.

Features:

• Designed to provide increased horsepower and torque.
• Pleated media provides a large filtration area offering long service intervals.
• Multiple layers of woven cotton gauze media offer excellent filtration.
• Application-specific base seal and sealing bead.
• Made in the USA for over 40 years.
• Washable and reusable, pre-oiled and ready to ride!

Specifications

• Height : 0.75in (19mm)
• Washable: Yes
• Filter Material: Cotton Gauze
• Outside Length: 11.375in (289mm)
• Outside Width: 4.938in (125mm)
• Filter Re-Oiling Amount: 0.85oz (25ml)

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle. When used as a replacement for the OEM air filter, modifications to the jetting may be required.

Features:

• Designed to provide increased horsepower and torque.
• Pleated media provides a large filtration area offering long service intervals.
• Multiple layers of woven cotton gauze media offers excellent filtration.
• Application-specific base seal and sealing bead.
• Made in the USA for over 40 years.
• Washable & reusable, pre-oiled and ready to ride!

Specifications:

• Washa ble: Yes
• Filter Material: Cotton Gauze
• Height: 79mm
• Inside Diameter: 94mm
• Outside Diameter: 119mm
• Filter Re-Oiling Amount: 9ml

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle.

Features:

• Designed to provide increased horsepower and torque.
• Pleated media provides a large filtration area offering long service intervals.
• Multiple layers of woven cotton gauze media offer excellent filtration.
• Application-specific base seal and sealing bead.
• Made in the USA for over 40 years.
• Washable and reusable, pre-oiled and ready to ride!

Specifications:

• Heigh t: 1.188in (30mm)
• Washable: Yes
• Filter Material: Cotton Gauze
• Outside Length: 11.625in (295mm)
• Outside Width: 6.25in (159mm)
• Filter Re-Oiling Amount: 0.85oz (25ml)

K&N's Universal Air Filters are designed and manufactured for a wide variety of applications, including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications. Regardless of the angle or offset diameter of the air intake, there is probably a K&N Universal air filter for your equipment. All filters are constructed with ultra-strong moulded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16 of an inch (1.5mm) to fit in-between sizes. K&N universal air filters are washable and reusable.

Features:

• Designed to increase horsepower and acceleration.
• Hundreds of sizes and shapes for most applications.
• High airflow with excellent filtration.
• Clamp-on washable and reusable air filter.
• Malleable flanges.

Specifications:

• Fi lter Material: Cotton Gauze
• Base Outside Diameter: 76mm
• Top Outside Diameter: 51mm
• Height: 76mm
• Flange Inside Diameter: 54mm
• Flange Length: 16mm
• Flange Type: Centred

The K&N PreCharger filter wrap is specially designed to extend the service interval of your K&N Filtercharger filter when used in very dusty conditions. They are made from durable polyester material containing a uniform weave. The PreCharger will stop small dirt particles with minimal restriction to the airflow of the filter.

Features:

• This product wraps your air filter with an additional pre-filter.
• Extends service interval of your K&N filter in dusty conditions.
• Durable polyester material with stitched elastic openings.
• Cleanable with K&N Filter Cleaner.

Specifications:

• Wrap Material: Polyester
• Base Inside Diameter: 127mm
• Top Inside Diameter: 121mm
• Height: 203mm

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance while providing excellent engine protection for your motorcycle.

Features:

• Designed to provide increased horsepower and torque.
• Pleated media provides a large filtration are,a offering long service intervals.
• Multiple layers of woven cotton gauze media offer excellent filtration.
• Application-specific base seal and sealing bead.
• Made in the USA for over 40 years.
• Washable and reusable, pre-oiled and ready to ride!

Specifications:

• Filte r Material: Cotton Gauze
• Washable: Yes
• Height: 33mm
• Outside Length: 143mm
• Outside Width: 110mm
• Filter Re-Oiling Amount: 9ml

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle.

Features:

• Designed to provide increased horsepower and torque.
• Pleated media provides a large filtration area, offering long service intervals.
• Multiple layers of woven cotton gauze media offer excellent filtration.
• Application-specific base seal and sealing bead.
• Made in the USA for over 40 years.
• Washable and reusable, pre-oiled and ready to ride!

Specifications:

• Heigh t: 1.313in (33mm)
• Washable: Yes
• Filter Material: Cotton Gauze
• Outside Length: 9.688in (246mm)
• Outside Width: 7.156in (182mm)
• Filter Re-Oiling Amount: 0.85oz (25ml)

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle.

Features:

• Designed to provide increased horsepower and torque.
• Pleated media provides a large filtration area, offering long service intervals.
• Multiple layers of woven cotton gauze media offers excellent filtration.
• Application-specific base seal and sealing bead.
• Made in the USA for over 40 years.
• Washable and reusable, pre-oiled and ready to ride!

Specifications:

• Washa ble: Yes
• Filter Material: Cotton Gauze
• Height: 178mm
• Outside Diameter: 102mm
• Flange Outside Diameter: 73mm
• Flange Length: 16mm
• Flange Type: Centred
• Filter Re-Oiling Amount: 59ml

Filters designed to fit with cut velocity stacks or straight pieces of exhaust tubing. Rubber filter bases come with moulded in velocity stack type radius and step, for smooth bore down from element to tube. Each filter has a rubber top with a stamped K&N logo. As with all K&N air filters, these are washable and reusable. Simply use K&N oil and cleaner to service your filter.

Features:

• Low restriction.
• Clamp-on design.
• Washable and reusable.
• Outstanding filtration.

Specifications:

• Filter Material: Cotton Gauze
• Outside Diameter: 89mm
• Height: 127mm
• Flange Inside Diameter: 54mm
• Flange Length: 25mm
• Flange Type: Angled
• Flange Angle: 5 degrees

This K&N racing air filter has just two layers of cotton to provide even lower air restriction than our replacement air filter for street vehicles. Unlike K&N replacement air filters, fuel management modifications will be necessary with this racing filter. K&N racing air filters are washable and reusable.

Features:

• Designed to increase horsepower and acceleration.
• Designed for racing and track applications, not for street use.
• Washable and reusable air filter.
• Low restriction.

Specifications:

Filte Material: Cotton Gauze
• Washable: Yes
• Height: 25mm
• Outside Length: 185mm
• Outside Width: 175mm
• Filter Re-Oiling Amount: 7ml

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle.

Features:

• Designed to provide increased horsepower and torque.
• Pleated media provides a large filtration area, offering long service intervals.
• Multiple layers of woven cotton gauze media offer excellent filtration.
• Application-specific base seal and sealing bead.
• Made in the USA for over 40 years.
• Washable and reusable, pre-oiled and ready to ride!

Specifications

• Height : 6.563in (167mm)
• Washable: Yes
• Filter Material: Cotton Gauze
• Filter Re-Oiling Amount: 1.1oz (33ml)

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance while providing excellent engine protection for your motorcycle.

Features

• Designed to provide increased horsepower and acceleration.
• Pleated cotton media provides a large filtration area offering low restriction, high-capacity and long service intervals.
• Multiple layers of woven cotton gauze media offer excellent filtration.
• Fits directly into OEM air box with an application-specific sealing bead ensuring a precise fit.
• No fuel management modifications are required to obtain increased performance.
• Washable and reusable, most are pre-oiled and ready to ride.

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle.

Features:

• Designed to provide increased horsepower and torque.
• Pleated media provides a large filtration area, offering long service intervals.
• Multiple layers of woven cotton gauze media offer excellent filtration.
• Application-specific base seal and sealing bead.
• Made in the USA for over 40 years.
• Washable and reusable, pre-oiled and ready to ride!

Specifications:

• Heigh t: 1in (25mm)
• Washable: Yes
• Filter Material: Cotton Gauze
• Outside Length: 9.938in (252mm)
• Outside Width: 4.5in (114mm)
• Filter Re-Oiling Amount: 0.53oz (16ml)

K&N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude. Generally, no jet changes are required with just a K&N filter element. K&N replacement air filters are washable and reusable and provide high air flow with excellent filtration.

Features:

• Designed to provide increased horsepower and acceleration.
• Pleated cotton media provides a large filtration area offering low restriction, high-capacity and long service intervals.
• Multiple layers of woven cotton gauze media offer excellent filtration.
• Fits directly into OEM airbox with an application-specific sealing bead ensuring a precise fit.
• No fuel management modifications are required to obtain increased performance.
• Washable & reusable, most are pre-oiled and ready to ride.

Specifications:

• Heigh t: 1.063in (27mm)
• Washable: Yes
• Filter Material: Cotton Gauze
• Outside Length: 6.375in (162mm)
• Outside Width: 3.938in (100mm)
• Filter Re-Oiling Amount: 0.28oz (8ml)

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle.

Features:

• Designed to provide increased horsepower and torque.
• Pleated media provides a large filtration area, offering long service intervals.
• Multiple layers of woven cotton gauze media offers excellent filtration.
• Application-specific base seal and sealing bead.
• Made in the USA for over 40 years.
• Washable and reusable, pre-oiled and ready to ride!

Specifications:

• Washa ble: Yes
• Filter Material: Cotton Gauze
• Height: 41mm
• Outside Length: 186mm
• Outside Width: 140mm
• Filter Re-Oiling Amount: 26ml

K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications. Regardless of the angle or offset diameter of the air intake, there is probably a K&N Universal air filter for your equipment. All filters are constructed with ultra-strong moulded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16 of an inch (1.5mm) to fit in-between sizes. K&N universal air filters are washable and reusable.

Features:

• Designed to increase horsepower and acceleration.
• Hundreds of sizes and shapes for most applications.
• High airflow with excellent filtration.
• Clamp-on washable and reusable air filter.
• Malleable flanges.

Specifications:

• Filter Material: Cotton Gauze
• Base Outside Diameter: 67mm
• Top Outside Diameter: 51mm
• Height: 76mm
• Flange Inside Diameter: 40mm
• Flange Length: 16mm
• Flange Type: Centred

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance while providing excellent engine protection for your motorcycle.

Features:

• Designed to increase horsepower.
• Washable, reusable, and engineered to last for the life of your vehicle.
• Designed to provide high airflow and exceptional filtration.
• Engineered to fit easily into your factory air box.
• Only needs cleaning every 50,000 miles under normal highway driving conditions.

Specifications:

• Filter Material: Cotton Gauze
• Washable: Yes
• Height: 98mm
• Inside Diameter: 71mm
• Outside Diameter: 114mm
• Flange Length: 16mm
• Filter Re-Oiling Amount: 24ml

K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom-engineered to fit your specific application and are designed to provide low restriction and increased performance while providing excellent engine protection for your motorcycle.

Features:

• Designed to provide increased horsepower and torque.
• Pleated media provides a large filtration area, offering long service intervals.
• Multiple layers of woven cotton gauze media offer excellent filtration.
• Application-specific base seal and sealing bead.
• Made in the USA for over 40 years.
• Washable and reusable, pre-oiled and ready to ride!

Specifications:

• Filter Material: Cotton Gauze
• Washable: Yes
• Height: 83mm
• Base Inside Diameter: 137mm
• Base Outside Diameter: 159mm
• Top Outside Diameter: 178mm
• Filter Re-Oiling Amount: 15ml