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  • K&N Filter Universal Rubber Filter 2 7/16 inch 20 Degree Flange 3 3/4 inch OD 6 inch Height
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K&N Filter Universal Rubber Filter 2 7/16 inch 20 Degree Flange 3 3/4 inch OD 6 inch Height

K&N Engineering
KNNRU-1770
In stock
Air Filters - Universal Fit
$52.99
K&N Universal Air Filter | 2 7/16" Flange, 20° Angle, 6" Height Boost performance with the K&N Universal Clamp-On Rubber Air Filter. Features a 2...
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$52.99
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K&N Filter Universal Rubber Filter 2 7/16 inch 20 Degree Flange 3 3/4 inch OD 6 inch Height
Description

K&N Universal Air Filter | 2 7/16" Flange, 20° Angle, 6" Height

Boost performance with the K&N Universal Clamp-On Rubber Air Filter. Features a 2 7/16" 20° angled flange, 3 3/4" OD, 6" height, washable cotton media, and maximum airflow.

The K&N Universal Clamp-On Rubber Air Filter is engineered to deliver high airflow, superior filtration, and increased horsepower across custom intake setups. Designed for versatility, this filter is constructed with an ultra-strong, pliable molded rubber flange that absorbs engine vibration and securely clamps onto custom air intakes. The flange material can also stretch up to 1/16th of an inch (1.5 mm) to comfortably fit in-between sizes.

Featuring a 20-degree angled flange, this filter is an ideal solution for tight engine bays or angled intake tubes where straight filters cannot fit. Made with 4 to 6 layers of premium oiled cotton gauze sandwiched between protective wire mesh, it captures fine dirt and contaminants without choking your engine's airflow. Fully washable and reusable, this filter eliminates the need for disposable paper filters, serving as a durable, long-term upgrade for high-performance builds.

Best Uses

  1. Custom Intake Systems: Ideal for custom automotive, motorcycle, or marine engine builds with tight clearancing.
  2. Performance & Racing Applications: Perfect for track cars, off-road buggies, and race vehicles needing maximum airflow.
  3. Angled Intake Piping: Specifically built for 2 7/16-inch (approx. 2.44") intake tubes requiring a 20-degree bend for clearance.
  4. Specialty Equipment: Great for small engines, generators, snowmobiles, tractors, or radio-controlled gas vehicles.

Features

  1. 20° Angled Rubber Flange: Designed with an offset angle to clear tight structural obstructions inside the engine compartment.
  2. Pliable Molded Rubber Construction: Absorbs engine vibration for a secure hold and stretches up to 1/16" (1.5mm) for intermediate intake sizes.
  3. High-Flow Oiled Cotton Media: Utilizes layered, pre-oiled cotton gauze to allow higher air volume compared to standard paper filters.
  4. Precision Dimensions: Features a 2 7/16 in. (2.438 in.) flange ID, 3 3/4 in. outer diameter (OD), and 6 in. overall filter height.
  5. Direct Clamp-On Design: Fits straight over the intake pipe and tightens securely with a standard worm-gear hose clamp.

Benefits

  1. Increased Horsepower & Acceleration: High-flow design improves airflow to the engine, helping boost overall throttle response and power output.
  2. Washable & Reusable: Can be cleaned and re-oiled repeatedly using a K&N Recharger kit, making it an eco-friendly and cost-effective choice.
  3. Engine Protection: Premium cotton gauze media provides reliable filtration to trap harmful dirt and debris before reaching engine internals.
  4. Vibration Resistance: Flexible rubber flange cushions the filter from severe engine vibrations, preventing detachment and cracking.
  5. Solves Tight Fitment Issues: The 20-degree angled neck eliminates clearance constraints in compact engine bays without requiring custom metal fabrication.  
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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.

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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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