K&N Engineering Universal Rubber Air Filter Part Number RU-4250 - 3.75-inch Flange ID, 5.375-inch Base OD, 4.375-inch Top OD, 5-inch Height

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. 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.

• NO-HASSLE WARRANTY: 1-Year Limited Warranty

The K&N Engineering Universal Rubber Air Filter Part Number RU-4250 is a versatile solution designed for a wide range of applications including racing vehicles, generators, snowmobiles, tractors, and radio-controlled cars. Crafted with durable, molded pliable rubber flanges, this filter ensures a secure fit while absorbing vibrations, making installation and operation more reliable. The flanges can also stretch up to 1/16 inch (1.5mm), accommodating minor size variations for a snug fit across different equipment setups.
Constructed with quality materials, the RU-4250 air filter is washable and reusable, providing an eco-friendly and cost-effective alternative to disposable filters. Its universal design allows it to adapt to various angles and offset diameters of air intakes, making it suitable for both custom and standard installations. The filter's dimensions and construction make it ideal for applications where a high flow rate and filtration stability are critical. This model does not require carb approval but comes with a one-year limited warranty, underscoring K&N's commitment to quality and customer satisfaction.
Designed for easy maintenance, the RU-4250 can be cleaned and reused multiple times, ensuring optimal airflow and engine performance over its lifespan. Its flexible rubber flange and universal sizing make it a reliable choice for enthusiasts and professionals seeking a durable, high-quality air filter that supports a broad spectrum of equipment and vehicle types.

Features:

• Universal compatibility for various equipment including racing cars, generators, snowmobiles, and tractors

• Constructed with durable, pliable rubber flanges for secure attachment and vibration absorption

• Flanges can stretch up to 1/16 inch (1.5mm) for a custom fit

• Washable and reusable for long-term cost savings and environmental sustainability

• Designed to fit multiple angles and offset diameters of air intakes

• Includes a one-year limited warranty for reliable performance