K&N Universal Rubber Filter 6in ID 7.5in OD 12in H

SKU: RU-3040 | UPC: 024844000507

K&N RU-3040 Universal Clamp-On Air Filter 6in ID 7.5in OD 12in H

K&N RU-3040 delivers high-flow filtration for racing vehicles radio-controlled cars generators snowmobiles tractors and custom intakes. The 6-inch inner diameter 7.5-inch outer diameter and 12-inch height with pliable rubber flanges ensure secure vibration-absorbing fit. Pre-oiled cotton gauze boosts horsepower acceleration and engine performance while trapping contaminants.

Key Features

• 4 Layers of Protection: Multiple layers of premium cotton gauze with tacking agent form intricate media to block trap harmful contaminants.
• Clean Once Every 5 Years: Handles 75000 miles under normal highway driving or 5 years at 15000 miles per year before cleaning.
• Easy Installation: Pre-oiled ready-to-use clamp-on design offers quick cost-effective upgrade with stretchable flanges up to 1/16 inch.
• Engineered Power: State-of-the-art media increases airflow for higher horsepower acceleration and overall engine response.
• Rugged Construction: Durable premium materials and advanced methods built to last a lifetime washable and reusable.

Product Notes

• Flanges absorb vibration allow secure clamp-on attachment and stretch 1/16 inch for in-between sizes.
• Washable reusable design reduces landfill waste from disposable filters.
• 1-Year Limited Warranty covers defects.

Installation Notes

• Professional installation recommended.
• Clamp directly to 6-inch ID intake stretches to fit slight variations.
• No additional hardware needed rubber flanges provide airtight seal.

This Part Fits

Year	Make	Model	Submodel
All Years	Various	Racing Vehicles	Custom Intakes
All Years	Various	Generators	N/A
All Years	Various	Snowmobiles	N/A
All Years	Various	Tractors	N/A
All Years	Various	Radio-Controlled	Cars ATVs

Why Choose K&N?

• Proven filtration since 1969 trusted in motorsports worldwide.
• High-flow designs deliver measurable power gains.
• Precision-engineered for universal applications and longevity.

Frequently Asked Questions

• Q: What intake sizes does the RU-3040 fit?
  A: 6-inch inner diameter with 7.5-inch outer flange stretches up to 1/16 inch for secure clamp-on to compatible air intakes.
• Q: What material is used in construction?
  A: Premium cotton gauze media with ultra-strong molded rubber flanges for durability vibration absorption and reusability.
• Q: What is the warranty and maintenance?
  A: 1-Year Limited Warranty cleaning required every 75000 miles or 5 years wash with K&N kit and re-oil.

Shipping &amp. Handling

• Method: UPS Ground FedEx
• Availability: In stock – ships same or next business day
• Packaging: Cardboard box 14.25in L x 8.5in W x 8.5in H
• Weight: 2.35 lbs