K&N Engineering RE-0850 Universal Air Filter, 4-Inch Flange

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. Associated products: 99-5000 Filter Care Service Kit Aerosol

• NO-HASSLE WARRANTY: 1-Year Limited Warranty
• One Year Limited Warranty

The K&N Engineering RE-0850 Universal Air Filter is designed for a wide range of automotive, powersports, racing, equipment, and specialty air-intake applications. Its universal design accommodates intake systems with varying angles and offset diameters, making it a practical solution for custom installations, replacement air cleaners, generators, snowmobiles, tractors, radio-controlled vehicles, and other compatible equipment.

Built for dependable service, the K&N Engineering RE-0850 uses a strong, pliable molded rubber flange that helps absorb vibration and maintain a secure connection to the intake tube. The flange can flex slightly to help accommodate minor variations between the filter and intake dimensions. The reusable filter media can be cleaned and serviced instead of routinely replaced, helping support long-term use when maintained with the appropriate K&N Filter Care Service Kit, such as the 99-5000 Aerosol Kit.

Key Product Specifications & Technical Data

• Brand: K&N Engineering
• Part Number: RE-0850
• Product Type: Universal automotive air filter
• Filter Style: Washable and reusable
• Flange Design: Molded pliable rubber
• Flange Size: 4 inches
• Filter Shape: Conical universal design
• Warranty: One-year limited warranty

What's Included in the Box

• One K&N Engineering RE-0850 Universal Air Filter

This product is intended for compatible custom or universal air-intake applications. Vehicle-specific fitment is not provided; confirm the intake tube and clearance requirements before installation. The K&N Engineering RE-0850 is not CARB approved, and applicable emissions requirements should be verified before use on street-driven vehicles. A carburetor acknowledgment may be required where applicable. This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Features:

• Universal Compatibility: Designed for a broad range of automotive, racing, powersports, equipment, and specialty air-intake applications.
• Washable and Reusable: Cleanable filter media supports repeated service and extended use when properly maintained.
• Flexible Rubber Flange: Strong molded rubber construction helps absorb vibration and provides a secure intake connection.
• Custom-Fit Design: Suitable for intake systems with varying angles and offset diameters, with limited flange flexibility to accommodate minor fit differences.

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1