1. Motorcycle/Scooter Air Filters Deals
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  3. UNI MN/SA5K

UNI MN-SA5K Fuel Air Filter MN/SA5K

fits model: Cr390. make: Husqvarna. year: 1977–1978.

Sa5k Uni Mn/sa5k Multi-stage Competition Air Filter For 1977-1978 Husqvarna Cr390 - Fuel Gw

( Brand: Uni ), ( Manufacturer Part Number: MN/SA5K ), ( Type: Multi-stage Competition Air Filter ), ( Compatible Year: 1978 1977 ), ( Bundle Description: 1 Pc Genuine Uni Multi-stage Competition Air Filter ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement )

Review UNI Mn/sa5k Multi stage Competition Air Filter For Husqvarna Fuel Gw fits CR390 1977–1978

Introducing the UNI MN/SA5K Multi-Stage Air Filter, specifically designed for the 1977-1978 Husqvarna CR390 fuel models with a gross weight of 390 kg (860 lbs). This high-performance air filter is engineered to deliver superior engine protection and enhanced air filtration for your Husqvarna CR390.

The UNI MN/SA5K Air Filter features a multi-stage design, which includes an outer pleated pre-filter and an inner fine filter element. The pre-filter is designed to trap larger particles such as dust and debris, extending the life of the fine filter element and reducing the need for frequent replacements. The inner fine filter element, on the other hand, captures even the smallest particles down to 5 microns in size, ensuring clean air enters the engine.

This air filter is made of high-quality materials, including a sturdy aluminum frame and a resilient paper filter element. The frame is reinforced to provide additional strength and durability, while the paper filter element is pleated to increase its surface area for optimal filtration. The filter element is also treated with an anti-oil coating, making it resistant to engine oil and other contaminants.

The UNI MN/SA5K Multi-Stage Air Filter is easy to install, with a secure-fit design that prevents it from coming loose during operation. It also comes with a reusable foam oil separator, which helps to remove excess engine oil from the intake air stream, ensuring that the filter remains clean and effective for longer.

In summary, the UNI MN/SA5K Multi-Stage Air Filter is an essential upgrade for any Husqvarna CR390 fuel model with a gross weight of 390 kg (860 lbs) from 1977-1978. It delivers superior engine protection, enhanced air filtration, and easy installation, making it an essential addition to your motorcycle maintenance routine.

Uni MN/SA5K Air Filter for 1977-1978 Husqvarna CR390: A Worthy Investment?

The Uni MN/SA5K is a multi-stage air filter designed for various applications, including the 1977-1978 Husqvarna CR390 fuel injection system. In this analysis, we will examine the potential advantages and disadvantages of purchasing this air filter for your Husqvarna motorcycle.

Pros:

1. Enhanced engine protection: The Uni MN/SA5K air filter provides an additional layer of engine protection by trapping more contaminants, ensuring cleaner air enters the engine.

2. Improved engine performance: A cleaner air filter allows for better airflow to the engine, which can enhance engine performance and improve fuel efficiency.

3. Longer filter life: Multi-stage air filters, like the Uni MN/SA5K, are designed to last longer than traditional paper filters, reducing the frequency of filter replacements.

4. OEM compatibility: The Uni MN/SA5K air filter is designed to be a direct replacement for the stock filter on the 1977-1978 Husqvarna CR390, ensuring a hassle-free installation process.

Cons:

1. Higher cost: Multi-stage air filters, like the Uni MN/SA5K, generally cost more than traditional paper filters. However, the longer filter life may offset the initial investment over time.

2. Requires periodic maintenance: While the Uni MN/SA5K air filter lasts longer than traditional filters, it still needs to be serviced periodically. This may include cleaning or replacing the pre-filter and/or the main filter element.

3. Potential for reduced power output: Some riders have reported a slight reduction in power output when using a multi-stage air filter, but this is often outweighed by the benefits of improved engine protection and performance.

Conclusion:

The Uni MN/SA5K multi-stage air filter offers several advantages for the 1977-1978 Husqvarna CR390, including enhanced engine protection, improved engine performance, longer filter life, and OEM compatibility. While there are some drawbacks, such as the higher cost and the need for periodic maintenance, the benefits generally outweigh the cons. Therefore, if you are looking for a high-performance air filter for your Husqvarna CR390, the Uni MN/SA5K is a worthy investment.

Details:

Uni Multi-Stage Competition Air Filter for 1977-1978 Husqvarna CR390 - Fuel gw: Status: In Stock.

part #: mnsa5k price

  • $46.22

specifications scoofilters:

  • for models: Cr390
  • for makes: Husqvarna
  • for years: 1977-1978
  • brand: Uni
  • mpn: Mn/sa5k
  • type: Multi-stage Competition Air Filter
  • compatible year: 1978 1977
  • bundle description: 1 Pc Genuine Uni Multi-stage Competition Air Filter
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement

shipping scoofilters:

  • transit: 2-7 Days
  • cost: $0.00
  • service: Standard
  • type: Fixed
  • class: Standard

general scoofilters:

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

seller scoofilters:

  • city: Multiple warehouses
  • # reviews: 23035
  • rating: 99.3%

offer scoofilters:

  • options: Ship-to-home
  • availability: In Stock
  • started: May 20, 2026
  • quantity: 1
  • sold: 0

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

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for models: cr390, for makes: husqvarna, for years: 1977-1978, type: multi-stage competition air filter, compatible year: 1978 1977, bundle description: 1 pc genuine uni multi-stage competition air filter, core charge: free no core charge, fitment type: direct replacement,
category: motorcycle parts > motorcycle scooter parts accessories > air intake fuel delivery > air filters, sku: 10965061773395633,

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