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Universal Washable Air Filter fits 2.5 Flange
JR-175 Universal Air Filter
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Universal Washable Air Filter fits 2.5 Flange

Part Number: JR-175
Online Price: $12.99
JR-175 Universal Washable Angled Air Filter – 2.5" Flange
Availability: In Stock.

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Description

Universal Washable Angled Air Filter – JR-175 (Fits 2.5" Flange)


The JR-175 Universal Reusable Pleated Air Filter is a high-performance, washable filter designed for kart racing and small engine applications that require angled clearance. Built to fit all 2.5" O.D. velocity stacks and air filter adapters, it’s a popular upgrade for go-karts using aftermarket intake systems.


Compared to standard filters like the 641 model, the JR-175 features a 20° angled flange and a tapered design that offers better clearance over the rear tire—making it ideal for most racing go-karts with limited space behind the engine.


Constructed with pleated, washable media, the filter delivers excellent airflow and protection, while the angled shape improves fitment without sacrificing performance.


Filter Dimensions:

  • Overall Height: 6.25"
  • Overall Width: 3.75" (top) to 3.25" (base) taper
  • Filter Height: 4.00"
  • Flange Height: 1.125" to 2.25"
  • Flange O.D.: 2.75"
  • Flange I.D.: 2.375"
  • Flange/Filter Angle: 20°


Compatibility:

  • Fits all 2.5" O.D. velocity stacks and air filter adapters
  • Ideal for racing go-karts, mini bikes, and compact engine locations


Cleaning & Maintenance Tips:
Clean with Maxima Racing Oil Air Filter Cleaner or mild soap and water. Do not use compressed air, blow dryers, or heat to dry the filter—this may damage the media. Always let the filter air-dry overnight. For optimal protection, re-oil with Maxima Racing Oil FAB-1 before reuse.

FAQ

1. What engines or applications is the JR-175 air filter designed for?

The JR-175 fits all 2.5" O.D. velocity stacks and air filter adapters, commonly used in racing go-karts, clone engines, and mini bikes where space is limited.


2. What makes this filter different from the standard 641 filter?

The JR-175 features a 20° angled flange and tapered body, providing improved clearance over rear tires or tight frames compared to the straight design of the 641.


3. How do I clean and maintain this filter?

Use Maxima Racing Oil Air Filter Cleaner or mild soap and water. Let it air-dry overnight. Never use heat sources or compressed air, as this can damage the filter.


4. Should I oil the air filter after cleaning?

Yes. For best filtration and engine protection, apply Maxima Racing Oil FAB-1 Filter Oil before reinstalling the filter.


5. What are the filter’s key dimensions?

  • Height: 6.25"
  • Width: 3.75" to 3.25" (tapered)
  • Flange Height: 1.125"–2.25"
  • Filter Height: 4.00"
  • Flange I.D.: 2.375"
  • Flange O.D.: 2.75"
  • Flange Angle: 20°

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