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K&N 1.25in Flange ID x 3in OD x 2.5in H Rubber Base Crankcase Vent Filter K&N Engineering KNN62-1390
K&N 1.25in Flange ID x 3in OD x 2.5in H Rubber Base Crankcase Vent Filter K&N Engineering KNN62-1390
K&N 1.25in Flange ID x 3in OD x 2.5in H Rubber Base Crankcase Vent Filter K&N Engineering KNN62-1390
K&N 1.25in Flange ID x 3in OD x 2.5in H Rubber Base Crankcase Vent Filter K&N Engineering KNN62-1390
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K&N 1.25in Flange ID x 3in OD x 2.5in H Rubber Base Crankcase Vent Filter

KNN62-1390
024844015297
Air Filters - Universal Fit
20+ Units In Stock - Ships Next Business Day
$ 24.00 $ 20.99
$ 20.99

SKU: 62-1390 | UPC: 024844015297

K&N 62-1390 1.25in Flange ID x 3in OD x 2.5in H Rubber Base Crankcase Vent Filter - Universal

The K&N 62-1390 crankcase vent filter delivers effective filtration for racing applications, vintage cars, and classic carbureted engines. Its 1-1/4 inch clamp-on flange pushes directly onto existing rubber breather grommets for simple setup. Constructed with washable non-woven synthetic media, it blocks dirt from entering the crankcase while allowing smooth ventilation and offers repeated cleaning for ongoing performance.

Key Features

  • 1-1/4 inch clamp-on flange: Securely mounts onto vent tubes or outlets with push-on design for quick installation on 1.25in ID grommets
  • Chrome-plated steel top and black rubber base: Provides durable build with embossed K&N branding and attractive finish for engine bay enhancement
  • Compact dimensions: 3 inches outside diameter and 2.5 inches height fit in tight spaces around valve covers and breathers
  • Washable non-woven synthetic media: Cleans easily with soap and water for reuse, reducing replacement costs over time
  • High-flow ventilation: Maintains proper crankcase pressure relief while filtering oil vapors and airborne contaminants

Product Notes

  • Designed for open breather systems in race and street performance setups
  • Rinse and re-oil media periodically to maintain peak filtration efficiency
  • Packaged in protective box with dimensions 3.88in x 3.38in x 3.13in

Installation Notes

  • Professional installation recommended.
  • Push flange firmly onto clean, dry breather grommet or tube
  • Compatible with standard 1-1/4 inch crankcase vent outlets and PCV replacements

This Part Fits

Year Make Model Submodel
Universal All Crankcase Vent 1.25in Flange ID Breather

Why Choose K&N?

  • Over 60 years of filtration engineering leadership
  • Media lasts for multiple cleanings with proper care
  • Precision design ensures reliable fit and airflow

Frequently Asked Questions

  • Q: Will this fit my engine's breather tube?
    A: Yes, the 1.25in inside diameter flange clamps onto standard rubber grommets or vent tubes found on most V8 and inline engines
  • Q: What material is the filter made from?
    A: Non-woven synthetic media with chrome-plated steel top and black rubber base for strength and flexibility
  • Q: How do I clean and maintain it?
    A: Wash with K&N air filter cleaner, rinse thoroughly, and apply filter oil. dry before reuse

Shipping &amp. Handling

  • Method: UPS Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Protective box 3.88in L x 3.38in W x 3.13in H
  • Weight: 0.4 lbs

Request For Information

Have questions about K&N 1.25in Flange ID x 3in OD x 2.5in H Rubber Base Crankcase Vent Filter? Fill out the form below and we'll get back to you by the next business day.
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