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  • K&N Filter Universal Rubber Filter 3.5in Flange ID x 5in OD x 5.625in H
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K&N Filter Universal Rubber Filter 3.5in Flange ID x 5in OD x 5.625in H

K&N Engineering
KNNRU-5114
In stock
Air Filters - Universal Fit
$94.99
K&N Universal Rubber Air Filter | 3.5" Flange x 5" OD x 5.625" H Upgrade engine airflow with the K&N Universal Clamp-On Air Filter (3.5"...
Size Guide
$94.99
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K&N Filter Universal Rubber Filter 3.5in Flange ID x 5in OD x 5.625in H
Description

K&N Universal Rubber Air Filter | 3.5" Flange x 5" OD x 5.625" H

Upgrade engine airflow with the K&N Universal Clamp-On Air Filter (3.5" Flange ID x 5" OD x 5.625" H). Reusable, washable cotton gauze media for performance.

Engineered for maximum airflow and reliable filtration, the K&N Universal Clamp-On Air Filter (Part No. RU-5114) delivers high-performance air intake for custom and high-output applications. Built with multi-layered, oiled cotton gauze media, this filter captures dirt and debris without choking your intake tract, allowing your engine to breathe cleaner and pull harder.

The flexible, ultra-durable molded rubber flange naturally absorbs engine vibrations to prevent detachment and cracks under stress. Designed with slight pliability, the 3.5-inch inner diameter flange can stretch up to $1/16\text{ in}$ ($1.5\text{ mm}$) to accommodate tight fitting variations on custom intake pipes. Unlike single-use paper filters, this filter is fully washable and reusable, engineered to last the lifespan of your setup with simple periodic re-oiling.

Best Uses

  1. Custom Engine Builds & Air Intakes: Ideal for custom cold air intake tubes or aftermarket setups with a 3.5-inch inlet diameter.
  2. Motorsports & Racing Vehicles: Suitable for high-rpm track cars, drag racing vehicles, and custom race builds requiring maximum intake airflow.
  3. Off-Road & Specialty Equipment: Excellent for buggies, ATVs, snowmobiles, tractors, and generator applications.
  4. Engine Swaps: Great solution for custom engine conversions where stock airboxes cannot fit within the engine bay.

Features

  1. Oiled Cotton Media: Multi-layer woven cotton design treated with special filter oil to maximize airflow and capture fine dirt particles.
  2. Pliable Molded Rubber Flange: Durable rubber base absorbs engine vibration and stretches up to 1/16 inch (1.5mm) to accommodate minor sizing variations.
  3. Clamp-On Design: Features a pre-installed mounting flange for quick and easy attachment using a standard hose clamp.
  4. Washable & Reusable: Designed to be cleaned and re-oiled repeatedly using a K&N Recharger kit.
  5. Precise Dimensions: Constructed with a 3.5-inch flange inner diameter, 5-inch outer diameter, and 5.625-inch total height.

Benefits

  1. Improved Engine Performance: Boosts horsepower and acceleration by reducing air intake restriction.
  2. Long-Term Cost Savings: Eliminates the need to repeatedly replace disposable paper air filters over the life of your vehicle.
  3. Superior Engine Protection: Provides exceptional filtration efficiency to protect critical internal engine components from dust and debris.
  4. Flexible & Secure Fit: The pliable rubber flange absorbs vibration and prevents slipping off under engine load.
  5. Eco-Friendly Choice: Reduces waste sent to landfills by providing a lifetime, cleanable filter element.
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Shipping:

1. Shipments to the Contiguous 48 US States Orders $149.99 and over qualify for our fast free shipping offer. We have worked with our shipping companies and integrated their shipping prices with our website for customer comfort.

2. Please see our International Orders page for orders shipping outside the US. We have worked with our shipping companies and integrated their shipping prices with our website for customer comfort.

3.For a specific delivery ETA based on the exact item(s) you want to purchase, please call us at (248) 832-2444 or message us via Chat before placing an order.

Returns:

1. Returned products must be in new, unused condition and include the original box and/or packaging with all tags included.

2. Once your return is received and inspected by MotoKarMax (usually within 48-72 hours of receiving), your refund will be processed and a credit will be applied to your credit card or original payment method. Please note that depending on your credit card company, it may take an additional 2-10 business days after your credit is applied for it to be posted to your account.

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