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  • K&N Universal Rubber Filter 4inch FLG / 6inch OD-B / 4-5/8inch OD-T / 12inch H
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K&N Universal Rubber Filter 4inch FLG / 6inch OD-B / 4-5/8inch OD-T / 12inch H

K&N Engineering
KNNRE-0860
In stock
Air Filters - Universal Fit
$94.99
K&N Universal Clamp-On Air Filter (4" Flange, 12" Height) | High Flow Boost performance with the K&N Universal Air Filter (4" ID, 12" H). Washable,...
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$94.99
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K&N Universal Rubber Filter 4inch FLG / 6inch OD-B / 4-5/8inch OD-T / 12inch H
Description

K&N Universal Clamp-On Air Filter (4" Flange, 12" Height) | High Flow

Boost performance with the K&N Universal Air Filter (4" ID, 12" H). Washable, reusable high-flow cotton gauze filter designed to increase airflow and horsepower.

The K&N Universal Rubber Air Filter (SKU: RE-0860) is engineered to deliver high airflow with exceptional filtration for custom engine setups. Featuring a round-tapered design—measuring 6 inches at the base, 4-5/8 inches at the top, and standing 12 inches tall—this unit maximizes surface area to ensure your engine gets clean, unrestrictive air.

Built with premium 4-layer cotton gauze media treated with a specialized tacking agent, it captures harmful contaminants without choking air volume. The integrated flange is molded from ultra-strong, pliable rubber that dampens engine vibration, mounts securely, and can stretch up to $1/16\text{ inch}$ ($1.5\text{ mm}$) to accommodate slight intake pipe variances. Completely washable and reusable, this filter provides long-lasting durability while eliminating the waste of single-use disposable filters.

Best Uses

  1. Custom cold air intake systems requiring a 4-inch inlet flange.
  2. High-horsepower motorsport and drag racing setups needing maximum filtration surface area.
  3. Off-road vehicles, buggies, track cars, and custom engine swaps.
  4. Industrial equipment, generators, and heavy-duty machinery with 4" intake tubing.

Features

  1. Molded Pliable Rubber Flange: Ultra-durable 4" inside-diameter flange absorbs engine vibration and stretches up to for a snug fit.
  2. Round Tapered 12" Profile: Expansive 12" height with a 6" base and 4-5/8" top diameter provides an immense filtration surface.
  3. 4-Layer Cotton Gauze Media: Oiled cotton mesh creates a high-flow barrier that traps dust, dirt, and debris efficiently.
  4. Washable & Reusable: Designed to be cleaned and re-oiled for repeated use, lasting through thousands of miles.
  5. Flexible Clamp-On Design: Fits standard 4-inch intake pipes, velocity stacks, or custom air tubes using a heavy-duty hose clamp.

 Benefits

  1. Increased Horsepower & Acceleration: High-flow design delivers significantly more oxygen to the engine compared to restrictive paper filters.
  2. Long-Term Savings: Eliminates the ongoing cost of buying disposable replacement air filters over your vehicle's lifespan.
  3. Superior Engine Protection: Multi-layer oil-treated cotton prevents fine microscopic particles from entering the engine.
  4. Eco-Friendly Choice: Reusable design keeps disposable paper filters and plastic waste out of landfills.
  5. Low Maintenance Requirements: Requires cleaning only once every 75,000 miles under normal highway driving conditions.


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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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