K&N Universal Air Filter 4in Flange / 5-3/8 in Base / 4-1/2in Top / 5in Height K&N Engineering KNNRU-3600
K&N Universal Air Filter 4in Flange / 5-3/8 in Base / 4-1/2in Top / 5in Height K&N Engineering KNNRU-3600
K&N Universal Air Filter 4in Flange / 5-3/8 in Base / 4-1/2in Top / 5in Height K&N Engineering KNNRU-3600
K&N Universal Air Filter 4in Flange / 5-3/8 in Base / 4-1/2in Top / 5in Height K&N Engineering KNNRU-3600
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K&N Universal Air Filter 4in Flange / 5-3/8 in Base / 4-1/2in Top / 5in Height

KNNRU-3600
024844373489
Air Filters - Universal Fit
20+ Units In Stock - Ships Next Business Day
$ 62.99
$ 62.99

SKU: RU-3600 | UPC: 024844373489

K&N Universal Air Filter 4in Flange / 5-3/8 in Base / 4-1/2in Top / 5in Height RU-3600 Fits Audi BMW Saab Mercedes

The K&N RU-3600 is a clamp-on universal air filter engineered for racing vehicles generators snowmobiles tractors and select cars including 2006-2008 Audi A3 2008 Audi TT 1998 BMW 318i 1997-1998 Mercedes-Benz C230 and 2001-2002 Saab 9-3 models. Its high-flow media increases horsepower and acceleration while trapping contaminants with four layers of premium cotton gauze. Pre-oiled and washable this filter installs easily for lasting engine performance gains.

Key Features

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

Product Notes

  • Washable and reusable design reduces landfill waste compared to disposable filters.
  • Flanges absorb vibration and provide secure attachment to 4in intake diameters.
  • Product weight 1.3 lb (0.6 kg) ships in box 8.25 x 8.19 x 5.88 in.

Installation Notes

  • Professional installation recommended.
  • Clamp-on design fits 4in flange centered with 1.063in flange length.
  • Stretches up to 116in to match in-between intake sizes no special tools needed.

This Part Fits

Year Make Model Submodel
2006-2008 Audi A3 Base
2008 Audi TT Base
1998 BMW 318i Base
1997-1998 Mercedes-Benz C230 Base
2001 Saab 9-3 Base
2001-2002 Saab 9-3 SE

Why Choose K&N?

  • K&N designs air filters for wide applications from street cars to off-road equipment.
  • Premium cotton gauze media delivers high airflow while filtering fine particles.
  • Molded rubber flanges ensure vibration-proof seal and precise engineering fit.

Frequently Asked Questions

  • Q: Will the RU-3600 fit my specific vehicle intake?
    A: This universal filter suits 4in diameter intakes on listed models and equipment verify your flange OD matches 4in ID with 5-3/8in base 4-1/2in top 5in height.
  • Q: What materials are used in construction?
    A: Ultra-strong molded pliable rubber flanges and four layers of oiled cotton gauze media built for washable reuse.
  • Q: What warranty coverage applies?
    A: Backed by 1-Year Limited Warranty covers defects in materials workmanship.

Shipping & Handling

  • Method: Ground shipping
  • Availability: In stock - ships same or next business day
  • Packaging: Secure box 8.25 in length x 8.19 in width x 5.88 in height
  • Weight: 1.3 lb (0.6 kg)

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