UNI 143239 Air Filter NU-3239ST

( Brand: Uni ), ( Part Type: Filter ), ( Storage Location: I2 Zsc-n Buk 11 ), ( Manufacturer Warranty: Unspecified Length ), ( Manufacturer Part Number: 143239 ), ( Country Of Origin: United States )

Review UNI Kawasaki Filter Multi stage Competition Air fits KFX400 2003

The UNI Filter Nu-3239ST Multi-Stage Air Filter is a premium replacement air filter designed specifically for the Kawasaki KFX400 all-terrain vehicle model year 2003 and up. This air filter is manufactured by UNI Filters, a globally recognized leader in filtration technology.

This multi-stage air filter is engineered to provide exceptional engine protection and enhanced performance. It features a pleated design with multiple layers to ensure maximum airflow while trapping even the smallest particles. The filter media is made from high-quality, synthetic material that can capture and hold more dirt than traditional paper filters.

The Nu-3239ST air filter is easy to install, with a shape and size that matches the original equipment filter. It comes with a reusable, oiled filter element that can be cleaned and reused multiple times, making it a cost-effective solution for maintaining your Kawasaki KFX400.

The filter housing is made from a durable, reinforced plastic material that is resistant to damage from rocks and other debris commonly found in off-road environments. It also features a secure-fit design that ensures a snug fit and proper sealing, preventing air leaks and maintaining optimal engine performance.

The UNI Filter Nu-3239ST Multi-Stage Air Filter is an essential upgrade for any Kawasaki KFX400 owner who wants to protect their engine from harmful contaminants and improve overall vehicle performance. Its high-quality construction, advanced filtration technology, and easy installation make it a top choice among off-road enthusiasts and mechanic professionals.

Buying the UNI Filter Num. 3239ST Multi-Stage Air Filter for a 2003 Kawasaki KFX400 ATV comes with several pros and cons that may help you make an informed decision.

1. Improved Air Flow: This filter is designed to provide better air flow than the OEM filter, which can lead to improved engine performance and power.

2. Enhanced Filtration: The multi-stage design of this filter allows it to trap smaller particles and contaminants, keeping the engine cleaner and reducing the need for frequent filter replacements.

3. Easy Installation: The filter is designed to fit securely in the ATV's air box, and installation is typically a straightforward process that can be completed in a short amount of time.

4. Durability: UNI filters are known for their high-quality materials and construction, which can help ensure long-lasting performance and reliability.

1. Cost: The UNI filter may be more expensive than the OEM filter, which could be a consideration for some buyers.

2. Frequency of Replacement: While the multi-stage design of the filter can help reduce the need for frequent replacements, it may still require more frequent replacement than some other filters on the market.

3. Compatibility: This filter is specifically designed for the 2003 Kawasaki KFX400, and may not be compatible with other models or years.

The UNI Filter Num. 3239ST Multi-Stage Air Filter for a 2003 Kawasaki KFX400 offers several benefits, including improved air flow, enhanced filtration, easy installation, and durability. However, it may be more expensive than the OEM filter and may require more frequent replacement. Ultimately, whether or not this filter is right for you will depend on your specific needs and budget.

If you are looking for improved performance, increased power, and better filtration for your 2003 Kawasaki KFX400 ATV, then the UNI Filter Num. 3239ST Multi-Stage Air Filter is a solid choice. However, if cost is a concern or you prefer a filter with a longer replacement interval, you may want to explore other options before making your final decision.

part # 143239 prices

• $27.44-$31.94

specifications filterblank:

• for models: Kfx400
• for makes: Kawasaki
• for years: 2003
• brand: Uni
• part type: Filter
• storage location: I2 Zsc-n Buk 11
• manufacturer warranty: Unspecified Length
• manufacturer part number: 143239
• country of origin: United States

shipping filterblank:

• transit: 3-7 Days
• cost: $0.00
• type: Fixed
• carrier: USPS, FedEx
• service: USPS Ground Advantage, USPS Priority Mail, FedEx 2Day, Overnight
• class: Standard, Expedited, One-day

general filterblank:

• condition: New other see details
• ATV, Side-by-Side UTV Parts Accessories > Air Intake Fuel Delivery > Air Filters

payments filterblank:

• wallet: Paypal
• other
• credit card: Mastercard

offer filterblank:

• options: Ship-to-home
• sold: 0
• best offers: True
• availability: In Stock
• quantity: 1
• started: June 8, 2026

returns filterblank:

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

seller filterblank:

• rating: 99.5%
• # reviews: 235093

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