1. Motorcycle/Scooter Air Filters Deals
  2. sku: 9695276484742722
  3. UNI FILTER ORUN-ER509581-ER

UNI FILTER ORUN-ER509581-ER Air Bike

fits model: Kx, 250. make: Kawasaki. year: 1985–1986.

Orun-er509581-er Uni Filter 1985-1986 Kawasaki Kx 250 Dirt Bike Air

( Brand: Uni Filter ), ( Manufacturer Part Number: ORUN-ER509581-ER )

Review UNI FILTER Kawasaki Dirt Bike Air fits KX 250 1985–1986

Introducing the UNI Filter Model OR-UN-ER509581-ER, a premium air filter designed specifically for Kawasaki KX 250 bikes manufactured between 1985 and 1986. This replacement air filter ensures optimal engine performance and protection, providing a perfect fit and superior filtration capabilities.

Crafted from high-quality pleated paper media, this UNI air filter boasts an exceptional filtration efficiency, trapping harmful contaminants such as dust, debris, and other impurities, while allowing clean air to flow freely into the engine. The paper media is reinforced with a sturdy aluminum frame, providing robust support and ensuring a secure fit in the airbox.

The UNI Filter OR-UN-ER509581-ER is easy to install, requiring no modifications or adjustments to the bike's original air intake system. The filter element is held in place by the stock clamp, making the installation process quick and hassle-free. Additionally, the filter's dimensions (10.2 inches x 9.6 inches x 2.8 inches) perfectly match those of the OEM part, ensuring a direct replacement.

This UNI air filter is designed to last long, offering excellent durability and resistance to the elements. Its robust design ensures that it can withstand the rigors of off-road riding, providing reliable filtration for extended periods. Furthermore, it can be cleaned and reused multiple times, making it a cost-effective solution for maintaining your Kawasaki KX 250's engine.

In conclusion, the UNI Filter Model OR-UN-ER509581-ER is an essential upgrade for Kawasaki KX 250 bikes from 1985 to 1986. With its superior filtration capabilities, easy installation, and long-lasting durability, this air filter is a worthy investment for any enthusiast looking to enhance their bike's performance and protection.

Buying a UNI Filter or UN-ER 509581-ER air filter for a 1985-1986 Kawasaki KX 250 bike can be a worthwhile investment for any enthusiast looking to maintain or improve the performance of their motorcycle. Here are some pros and cons to consider before making a purchase.

Pros:

1. Improved Engine Performance: A high-quality air filter can help increase engine performance by allowing for better airflow into the engine. This results in more power and improved fuel efficiency.

2. Longer Engine Life: By trapping more dirt and debris, an air filter helps protect the engine from damage caused by contaminated air. This can result in longer engine life and fewer repair costs.

3. Better Filtration: A high-performance air filter offers better filtration compared to the stock filter, which can improve the overall riding experience by reducing engine noise and improving throttle response.

Cons:

1. Cost: High-performance air filters can be more expensive than stock filters, which may be a consideration for some riders.

2. Maintenance: High-performance air filters require more frequent maintenance than stock filters due to their higher filtration capabilities. This means that riders may need to replace or clean the filter more often.

3. Installation: Installing a high-performance air filter can be more complicated than replacing a stock filter. Riders may need to modify their air filter housing or use an aftermarket intake system to accommodate the larger filter.

In conclusion, the decision to buy a UNI Filter or UN-ER 509581-ER air filter for a 1985-1986 Kawasaki KX 250 bike depends on the individual rider's priorities and budget. If performance and filtration are top priorities, then investing in a high-performance air filter may be worthwhile. However, if cost and ease of maintenance are more important, then a stock filter may be the better option. Ultimately, it is essential to consider the specific needs and goals of the rider before making a purchase decision.

Based on the information provided, my recommendation would be for riders who prioritize performance and filtration to consider investing in a high-quality aftermarket air filter such as a UNI Filter or UN-ER 509581-ER. However, for those who are more budget-conscious or prefer a low-maintenance option, a stock filter may be the better choice.

Details:

The produce more horsepower and torque than any other air Filter. 1985 1986 Kawasaki KX 250 Dirt Bike Uni Filter Air Filter: Compatibility. To complete the winning combination, apply Uni oil and cleaner. Uni air Filters are unsurpassed in airflow, dirt stopping and overall performance.

Brand: Uni Filter, model Number: ORUN-ER509581-ER. I need to exchange an item. Unis revolutionary two stage air Filter is the only that comes apart for maximum airflow and ultimate cleaning. This is helpful if you are buying multiple items.

Parts without fitment are to be assumed Universal and may require vehicle modification.

part #: oruner509581 price

  • $32.23

specifications scoofilters:

  • for models: Kx, 250
  • for makes: Kawasaki
  • for years: 1985-1986
  • brand: Uni Filter
  • mpn: Orun-er509581-er

offer scooFilters:

  • started: March 8, 2026
  • options: Ship-to-home
  • quantity: 9
  • sold: 0
  • availability: In Stock

general scooFilters:

  • Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Air Filters
  • condition: New

payments scooFilters:

  • other
  • credit card: Diners-club
  • wallet: Paypal

returns scooFilters:

  • paid by: Seller
  • time: 30 Days
  • policy: Returns Accepted

seller scooFilters:

  • # reviews: 79490
  • rating: 99.9%
  • city: San Marcos, CA

shipping scooFilters:

  • service: Standard
  • type: Fixed
  • cost: $0.00
  • class: Standard
  • transit: 3-6 Days
for models: kx, 250, for makes: kawasaki, for years: 1985-1986,
category: motorcycle parts > motorcycle scooter parts accessories > air intake fuel delivery > air filters, sku: 9695276484742722,

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1 offer $32.23 USD
  • Offer #1: $32.23 price + $0.00 shipping estimate = $32.23* total. UNI AIR FILTERS. To complete the winning combination, apply Uni oil and Uni cleaner.FREE SHIPPING

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