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  • K&N Universal Rubber Filter 4inch FLG / 6inch OD-B / 4-5/8inch OD-T / 9inch H
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K&N Universal Rubber Filter 4inch FLG / 6inch OD-B / 4-5/8inch OD-T / 9inch H

K&N Engineering
KNNRE-0870
Auf Lager
Air Filters - Universal Fit
$78.99
K&N Universal Air Filter | 4" Flange, 6" Base, 9" Height Boost airflow and performance with the K&N Universal Clamp-On Rubber Air Filter (4" Flange,...
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$78.99
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K&N Universal Rubber Filter 4inch FLG / 6inch OD-B / 4-5/8inch OD-T / 9inch H
Description

K&N Universal Air Filter | 4" Flange, 6" Base, 9" Height

Boost airflow and performance with the K&N Universal Clamp-On Rubber Air Filter (4" Flange, 9" Height). High-flow, washable, and built to last.

Engineered to deliver high airflow and dependable filtration, the K&N Universal Clamp-On Rubber Air Filter is built for custom, performance, and racing applications. Designed with a round tapered shape, this filter features a 4-inch inner diameter flange, a 6-inch outer base diameter, a 4-5/8-inch top diameter, and stands 9 inches high. Constructed with multiple layers of oiled cotton gauze media, it isolates microscopic dust particles while maximizing air velocity to help increase horsepower and throttle response. Its ultra-durable, pliable molded rubber flange absorbs intense engine vibration, ensures a tight seal, and can stretch slightly to accommodate slight sizing variations. Completely washable and reusable, this high-performance filter is designed to be the last air filter your setup will ever need.

Best Uses

  1. Custom Engine Builds & Air Intakes: Fits custom-fabricated 4-inch cold air or short ram intake pipes.
  2. Motorsports & Track Cars: Delivers maximum airflow for race cars, dragsters, and high-RPM track builds.
  3. Off-Road & Performance Vehicles: Upgrade air intake systems on trucks, SUVs, and custom off-road rigs.
  4. Forced Induction Systems: Handles high-volume air demands for turbocharged and supercharged setups.
  5. Industrial & Specialty Equipment: Works for heavy-duty generators, tractors, and custom power equipment requiring 4-inch intake flanges.

Features

  1. High-Flow Oiled Cotton Media: Engineered with layered cotton gauze to maximize airflow while delivering excellent filtration protection.
  2. Pliable Molded Rubber Flange: Made with heavy-duty rubber that absorbs engine vibrations and stretches up to 1/16" (1.5mm) for precise fitting.
  3. Round Tapered Design: Optimized 6" base, 4-5/8" top, and 9" height profile to provide maximum surface area in tight engine bays.
  4. Direct Clamp-On Installation: Comes pre-oiled and ready to mount securely onto any standard 4-inch intake tube using a hose clamp.
  5. Washable & Reusable Construction: Designed to be cleaned and re-oiled repeatedly with a K&N Recharger kit.

Benefits

  1. Increased Power & Acceleration: Helps your engine breathe easier, leading to gains in horsepower and faster throttle response.
  2. Long-Term Cost Savings: Replaces single-use paper filters, eliminating the need to buy replacement air filters in the future.
  3. Vibration Resistance: Flexible rubber base prevents the filter from loosening or cracking under engine motion and road impact.
  4. Superior Engine Protection: Traps harmful dirt, dust, and contaminants before they reach your intake tract.
  5. Eco-Friendly Choice: Reduces environmental waste by replacing disposable filters with a long-lasting, reusable unit.
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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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