enquiry@2to4wheel.com

The Business is in process of Relocation. Orders might be delayed or cancelled.

Text - +1 248 832 2444

Customer Service About Contact Blog Rewards Program
Wunschlisten
0 Einkaufswagen

Ihr Einkaufswagen ist im Moment leer.

Weiter einkaufen
Gesamt: $0.00
Einkaufswagen einsehen
Toggle menu
0
  • Zuhause
  • K&N Filter Universal Rubber Filter Round Straight 3.5in Flange ID x 5in OD x 8.5in H
Photo - Primary img 1
Photo - Primary img 2
Photo - Primary img 3
Photo - in package img 4
Photo - in package img 5
Photo - in package img 6
Photo - in package img 7
Photo - in package img 8
Photo - in package img 9
Photo - in package img 10
User 4
User 4
User 4
Logo Image
Klicken zum Vergrößern
Laden Sie das Bild in den Galerie-Viewer, Photo - Primary img 1
Laden Sie das Bild in den Galerie-Viewer, Photo - Primary img 2
Laden Sie das Bild in den Galerie-Viewer, Photo - Primary img 3
Laden Sie das Bild in den Galerie-Viewer, Photo - in package img 4
Laden Sie das Bild in den Galerie-Viewer, Photo - in package img 5
Laden Sie das Bild in den Galerie-Viewer, Photo - in package img 6
Laden Sie das Bild in den Galerie-Viewer, Photo - in package img 7
Laden Sie das Bild in den Galerie-Viewer, Photo - in package img 8
Laden Sie das Bild in den Galerie-Viewer, Photo - in package img 9
Laden Sie das Bild in den Galerie-Viewer, Photo - in package img 10
Laden Sie das Bild in den Galerie-Viewer, User 4
Laden Sie das Bild in den Galerie-Viewer, User 4
Laden Sie das Bild in den Galerie-Viewer, User 4
Laden Sie das Bild in den Galerie-Viewer, Logo Image
Video
Instruction
Warranty

Have Questions?

1.248.832.2444 Ask an Experts

  • Guaranteed Fitment

    Always the correct part

  • In-House Experts

    We know our products

  • Added Value

    Ask Us How!

  • Wordwide Delivery

    We proudly deliver to our customers and businesses worldwide

K&N Filter Universal Rubber Filter Round Straight 3.5in Flange ID x 5in OD x 8.5in H

K&N Engineering
KNNRU-1785
Auf Lager
Air Filters - Universal Fit
$78.99
K&N RU-1785 Universal Air Filter - 3.5" Flange, 5" OD x 8.5" H Boost engine performance with the K&N RU-1785 Universal Air Filter. High-flow cotton...
Size Guide
$78.99
customers are viewing this product
K&N Filter Universal Rubber Filter Round Straight 3.5in Flange ID x 5in OD x 8.5in H
Description

K&N RU-1785 Universal Air Filter - 3.5" Flange, 5" OD x 8.5" H

Boost engine performance with the K&N RU-1785 Universal Air Filter. High-flow cotton gauze, washable design, 3.5" flange ID, 5" OD, and 8.5" height.

The K&N RU-1785 Universal Clamp-On Air Filter is engineered to deliver high airflow while providing top-tier engine protection. Featuring a round straight design with a 3.5-inch inner flange diameter, 5-inch outside diameter, and an 8.5-inch height, this universal filter easily connects to custom intake tubing or tight engine compartments.

Constructed using 4 layers of oiled cotton gauze media, the filter creates an intricate matrix designed to capture harmful airborne particles without restricting vital airflow. The molded pliable rubber flange absorbs road vibrations and stretches up to 1/16th of an inch (1.5 mm) to accommodate slight variance in intake tubing sizes. Fully washable and reusable, it provides long-term value and reduces environmental waste compared to disposable paper filters.

Best Uses

  1. Custom Engine Builds & Engine Swaps: Ideal for custom cold air intakes or modified street performance vehicles requiring a 3.5-inch intake connection.
  2. Motorsports & Racing Applications: Delivers high airflow necessary for high-RPM power in race cars, drag racing setups, and track day builds.
  3. Off-Road & Specialty Vehicles: Fits custom buggies, tractors, snowmobiles, and generators requiring reliable dust filtration and vibration resistance.

Features

  1. High-Flow Oiled Cotton Gauze: Built with 4 layers of premium woven cotton media treated with a specialized tacking agent to capture airborne contaminants.
  2. Flexible Rubber Flange: Made from ultra-durable, vibration-absorbing pliable rubber that can stretch up to 1/16 in (1.5 mm) for a tight fit.
  3. Round Straight Dimensions: Features a centered 3.5-inch Flange ID, 5-inch Base/Top OD, and an 8.5-inch total height.
  4. Pre-Oiled & Ready to Install: Ships factory pre-oiled so you can clamp it directly onto your intake system straight out of the box.
  5. Washable & Reusable: Designed to be cleaned and re-oiled for repeated use, lasting significantly longer than traditional paper filters.

Benefits

  1. Increased Horsepower & Acceleration: Optimizes intake airflow into the engine, helping to boost power and throttle response.
  2. Superior Engine Protection: Provides up to 99% filtration efficiency to keep dirt, dust, and debris out of critical engine components.
  3. Cost-Effective Long-Term Value: Eliminates the need to buy disposable replacement filters; requires cleaning only every 75,000 miles under normal highway driving conditions.
  4. Vibration-Resistant & Secure Fit: The molded rubber base withstands heavy engine shaking and extreme operational environments.
  5. Eco-Friendly Choice: Helps lower environmental footprint by keeping single-use paper air filters out of landfills.
Mehr anzeigen
Weniger anzeigen

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.

Customer Reviews

Einkaufswagen

×