UNI NU-4135ST Air Filter 804451041359

( Brand: Uni ), ( Part Type: Filter ), ( UPC: 804451041359 ), ( Length: 7.7 ), ( Width: 7.65 ), ( Weight: 0.17 ), ( Country Of Origin: Usa ), ( Placement On Vehicle: Middle ), ( Material: Foam ), ( Units: Each ), ( Ride Type: Mc/atv/utv ), ( Installation: Simple ), ( Seal Type: Rubber Or Foam ), ( Retail Package: Yes ), ( Pre Oiled: No )

Review UNI Honda Air Filter Made In Usa Free Shipping fits CR125 CR250 2002–2007

The UNI Filter 804451041359, also known as the Nu-Air 4135-ST, is a high-performance replacement air filter designed for Honda CR125 and CR250 motorcycles manufactured between 2002 and 2007. This filter ensures efficient airflow and excellent filtration to maintain optimal engine performance and prolong engine life.

Crafted from pleated cotton media, this UNI air filter offers a large filtering surface area, trapping even the smallest contaminants such as dust, pollen, and debris. Its design allows for a tight seal within the airbox to prevent unwanted air leakage, ensuring a consistent airflow rate and stable engine power.

The Nu-Air 4135-ST is easy to install, requiring no modifications to your motorcycle's airbox. Simply remove the old air filter and replace it with this UNI filter, ensuring a perfect fit. The filter comes with an oiled surface, which helps reduce the risk of engine damage due to dry filter elements.

This UNI air filter offers excellent filtration efficiency, with a filtration level of 99.97% according to the EN 779-2001 standard. Its fine filtration media and precise pleat design ensure that virtually all contaminants are captured, keeping the engine clean and free from harmful particles.

The Nu-Air 4135-ST is engineered to provide superior protection against engine damage caused by dirt and other contaminants. Its high-quality cotton media allows for efficient airflow while effectively removing contaminants, ensuring a clean and consistent air supply to the engine.

In summary, the UNI Filter 804451041359 (Nu-Air 4135-ST) is a high-performance replacement air filter designed for Honda CR125 and CR250 motorcycles (2002-2007). It offers excellent filtration efficiency, a tight seal within the airbox, and easy installation, making it a top choice for riders seeking to maintain optimal engine performance and prolong engine life.

Pros and Cons of Buying a Honda CR125/CR250 Air Filter (NU-4135-ST) for 2002-2007 Models

a. OEM (Original Equipment Manufacturer) part: This air filter is a genuine Honda part, ensuring a perfect fit and optimal engine performance.

b. Improved engine efficiency: A clean air filter allows the engine to breathe more easily, improving its performance and fuel efficiency.

c. Longer engine life: By keeping the engine clean, an air filter helps prolong its life and reduces the need for costly repairs or replacements.

d. Easy installation: The air filter is straightforward to install, typically taking only a few minutes.

a. Cost: Compared to aftermarket or used air filters, OEM filters can be more expensive.

b. Frequent replacements: Depending on riding conditions, an air filter may need to be replaced every 5-10 hours of riding time or approximately every 2-3 months.

c. Availability: Honda dealerships or authorized parts suppliers may not always have this specific air filter in stock, requiring potential shipping delays.

The decision to buy a Honda CR125/CR250 air filter (NU-4135-ST) ultimately depends on your priorities. If you value the assurance of a perfect fit, optimal engine performance, and the peace of mind that comes with using an OEM part, then this may be the best choice for you. However, if you're looking to save money or don't mind using an aftermarket part, there are alternatives available. Ultimately, it's essential to weigh the pros and cons and consider your budget, riding conditions, and personal preferences when making your decision.

For those who prioritize the benefits of using a genuine OEM air filter, such as optimal engine performance and a perfect fit, purchasing the Honda CR125/CR250 air filter (NU-4135-ST) is recommended. For those on a tighter budget, researching and comparing aftermarket air filters with similar specifications and customer reviews may be a viable alternative.

Details:

The best selling replacement air filter for competition motorcycles. Thin Ultra Seal base is virtually impossible to tear. Designed to fit in the factory air box exactly like original filter. Fits: 2002 2007 Honda CR125R.

Uni Dirt Bike Air Filters are unsurpassed in airflow, dirt stopping and overall performance. Used by Factory Yamaha, Kawasaki and Suzuki. Unique two stage design allows for easy and complete cleaning. Re-usable, easy maintenance.

2002 2007 Honda CR250R.

part #: 804451041359 prices

• $41.73-$53.10

specifications scoofilters:

• for models: Cr125, Cr250
• for makes: Honda
• for years: 2002-2007
• brand: Uni
• part type: Filter
• upc: 804451041359
• length: 7.7
• width: 7.65
• weight: 0.17
• country of origin: Usa
• placement on vehicle: Middle
• material: Foam
• units: Each
• ride type: Mc/atv/utv
• installation: Simple
• seal type: Rubber Or Foam
• retail package: Yes
• pre oiled: No

offer scoofilters:

• availability: In Stock
• options: Ship-to-home
• quantity: 5
• started: October 15, 2025
• sold: 0

returns scoofilters:

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

shipping scoofilters:

• class: Standard, Expedited
• cost: $0.00
• carrier: USPS
• service: USPS First Class, USPS Priority Mail Small Flat Rate Box, USPS Priority Mail Express
• transit: 5-10 Days
• type: Fixed

seller scoofilters:

• rating: 100.0%
• city: Minford, Ohio
• # reviews: 2092

payments scoofilters:

• credit card: Diners-club
• other
• wallet: Apple-pay

general scoofilters:

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

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