How often should I clean and re-oil my K&N air filter?

The cleaning frequency depends on your driving conditions. In normal conditions, K&N recommends cleaning and re-oiling your filter every 50,000 miles. However, if you drive in dusty or off-road conditions, you may need to clean it more often.

What is the flange made of?

The flange is constructed from ultra-strong molded pliable rubber. This material is designed to absorb vibration and allow for a secure attachment. It can also be stretched for up to 1/16 of an inch (1.5mm) to fit in-between sizes.

Is this air filter street legal?

This air filter is not CARB approved, so it cannot be used on pollution-controlled vehicles in California. Check your local regulations to ensure compliance.

K&N Universal Rubber Filter Round Tapered 3in Base OD x 2in Top OD x 4in H - 73-78 Honda ATC90

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K&N Engineering

K&N Universal Rubber Filter Round Tapered 3in Base OD x 2in Top OD x 4in H - 73-78 Honda ATC90

Name: K&N Universal Rubber Filter Round Tapered 3in Base OD x 2in Top OD x 4in H - 73-78 Honda ATC90
Brand: K&N Engineering
Price: 52.99 USD
Availability: InStock

$52.99

Washable and reusable air filter. Features pliable rubber flanges for secure attachment.

Key Features

Washable — clean and re-oil for extended use
Pliable rubber flanges — allow secure attachment
Universal fit — works with a variety of applications

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Fits these vehicles

Honda ATC110 1982
Honda ATC90 1973-1978

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Product Details

Regardless of the angle or offset diameter of an air intake, there is probably a K&N Universal air filter for your equipment. K&N universal air filters are washable and reusable.
1-11/16in.40 DEG FLG; 3in.B; 2in.T; 4in.H

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 molded 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. When used as a replacement for the OEM air filter, modifications to the jetting may be required.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 molded 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.