K&N Filter Universal Rubber Filter Round Straight 3.5in Flange ID x 5in OD x 8.5in H

SKU: RU-1785 | UPC: 024844032089

K&N RU-1785 Universal Clamp-On Air Filter 3.5in Flange ID x 5in OD x 8.5in H

The K&N RU-1785 is a round straight universal air filter with a centered rubber flange measuring 3.5 inches ID 5 inches OD and 8.5 inches tall. It fits a wide range of applications including racing vehicles generators snowmobiles tractors and radio-controlled cars regardless of intake angle or offset. This pre-oiled washable filter increases airflow for better horsepower and acceleration while trapping contaminants with four layers of cotton gauze.

Key Features

• 4 Layers of Protection: Multiple layers of premium cotton gauze with a tacking agent form a mesh that blocks harmful contaminants for long engine protection.
• Clean Once Every 5 Years: Needs cleaning only every 75000 miles under normal highway conditions based on 15000 miles per year average.
• Easy Installation: Pre-oiled and ready to use with pliable rubber flanges that stretch up to 116 inch for secure clamp-on fit.
• Engineered Power: State-of-the-art media design improves horsepower acceleration and overall engine performance.
• Rugged Construction: Durable premium materials ensure lifetime use absorbing vibration for reliable attachment.

Product Notes

• Flanges absorb vibration and stretch slightly for between sizes.
• Washable and reusable to reduce landfill waste from disposable filters.
• Product weight 1.8 lbs ships in box measuring 9.25in x 6.5in x 9.25in.

Installation Notes

• Professional installation recommended.
• Clamp-on design uses standard hose clamp not included for attachment.
• Molded rubber flange 1.75in long centers on 3.5in ID intake for secure seal.

This Part Fits

Year	Make	Model	Submodel
N/A	N/A	Racing Vehicles	Custom Intakes
N/A	N/A	Generators	All Types
N/A	N/A	Snowmobiles	Performance
N/A	N/A	Tractors	Agricultural
N/A	N/A	Radio-Controlled Cars	RC Models

Why Choose K&N?

• Proven leader in high-flow air filtration for motorsports and powersports.
• Precision manufacturing with cotton gauze media for consistent performance.
• 1-Year Limited Warranty backs every universal filter.

Frequently Asked Questions

• Q: Does the RU-1785 fit specific vehicles?
  A: This is a universal clamp-on filter for custom applications like racing setups generators snowmobiles tractors and RC cars with 3.5in intake.
• Q: What material is used in the filter media?
  A: Four layers of premium cotton gauze treated with a tacking agent for superior contaminant trapping and airflow.
• Q: What is the warranty and maintenance?
  A: 1-Year Limited Warranty. Clean every 75000 miles or 5 years with K&N cleaning kit for reuse.

Shipping & Handling

• Method: Ground shipping via UPS or FedEx
• Availability: In stock – ships same or next business day
• Packaging: Protective cardboard box 9.25in L x 6.5in W x 9.25in H
• Weight: 1.8 lbs