Donaldson Blue® air filters with Ultra-Web® fine-fiber technology deliver superior initial and overall efficiency compared to conventional cellulose media, helping to protect engines from harmful contaminants. With more than 100 years of innovation in heavy-duty engine filtration—and over 20 years pioneering fine fiber media technology for diesel engines—Donaldson continues to lead the industry. Today, Ultra-Web® HD pushes performance even further, engineered to excel in heavy‑duty, high-dust environments.

Ultra-Web® Fine Fiber Technology

  • Engineered to perform in extreme temperature and humidity conditions, unlike ordinary fine fibers
  • Proven in the real world – used in diesel engines for nearly two decades
  • On-highway trucks are guaranteed to go twice the distance compared to standard cellulose filters

Ultra-Web® HD Ultra-fine Fiber Technology

  • Designed specifically for heavy-duty, heavy-dust environments — like mining.
  • Provides greater efficiency than previous generation fine fibers
  • Provides the best protection for high-dust applications

Benefits

  • Longer Engine Life - Donaldson Blue® air filters provide better engine protection by allowing much less contaminant to pass through than cellulose air filters
  • Longer Filter Life - Smaller interfiber spaces of Ultra-Web® fine fiber technology hold more submicron contaminant than conventional filters with cellulose media, delivering longer filter life

Applications

  • On-road trucks, Off-road trucks, and equipment

PowerCore Air Filters

For more than two decades, Donaldson PowerCore® air filtration technology has proven itself in demanding real-world applications while consistently aligning with original equipment manufacturer (OEM) requirements.

In that time, PowerCore air filters have logged billions of on-road miles and off-road hours, safeguarding engines, minimising unplanned downtime, and lowering operating costs for fleets worldwide. Today, Donaldson PowerCore air filters continue to raise the bar for filtration performance, offering expanded coverage, advanced efficiency, and exceptional dust holding capacity. Compact, lightweight air cleaner designs support modern airflow demands and comply with increasingly strict emissions standards—without compromising protection.

Features

  • Smaller and lighter to meet evolving emissions regulations (and greater emissions system space claim)
  • Better dust-loading – extending filter life with 13-26% more contaminant-loading capacity*
  • Better initial restriction – protecting performance with 27-49% lower initial restriction*
  • Metal-free, lightweight filters
  • Unique shapes, the ability to design a wide range of shapes and sizes
  • Improved contaminant encapsulation, dust and dirt stay contained in the filter during service
  • Straight-through airflow design delivers better overall efficiency and better dust-holding capacity than other filter configurations

Benefits

  • Effective, consistent performance for the life of your engine
  • Greater filter capacity means longer filter life, which means fewer filter changes and less money spent on maintenance
  • Lower initial restriction protects engine performance and fuel economy
  • Designed specifically to give you effective, consistent performance over the life of your engine

Applications

  • On-road trucks, Off-road trucks, and equipment

Available Media Types

  • Cellulose – standard media used in the majority of air filter applications
  • Ultra-Web – filtration media technology featuring very fine, resilient fiber 
  • Flame-retardant media variations available to meet specialty engine applications requirements

*Compared to competitive filters Fleetguard® Direct Flow™ Air Filter Replacements

Competitive Fit Filters

We manufacture replacement filters for popular air intake systems that meet or exceed application requirements.

Donaldson Blue® Replacement Filters for Fleetguard® Direct Flow™ Air Cleaners

Donaldson Blue® replacement filters for Fleetguard® Direct Flow™ Air Cleaners incorporate many of Donaldson’s most advanced air filtration innovations: RadialSeal™, Ultra-Web®, and PowerCore® or pleated filter designs.

Features

Donaldson Blue filters for Fleetguard® Direct Flow™ air cleaners were tested head-to-head against OEM filters. They were bombarded with dust, vibrated, and shaken – and then carefully examined.

When tested per ISO 5011, Donaldson Blue filters perform well on the important characteristics of dust capture – where they reached a 99.97% overall efficiency – and capacity (filter life). It’s when we compare sealing technology that Donaldson filters really stand out.

Donaldson Blue filters with RadialSeal technology deliver two critical sealing advantages compared to the OEM filter:  

  • 50% more sealing area
  • Up to 2 times more gasket compression around the frame for a sure-fit seal

Compare this to a thin O-ring design that offers less sealing area and less compression – and it’s easy to see why more sealing area and more compression is better for protecting engines.

Benefits

  • Proven Ultra-Web® Fine Fiber Media 
    • Protects engines and helps them last longer by delivering better initial and overall efficiency than cellulose media
    • High dust-holding capacity promotes longer filter life

  • Proven PowerCore® Filter Design
    • Rugged construction holds up in heavy-duty work environments
    • Dust encapsulation makes servicing easier and cleaner
  • Proven Pleated Filter Design 
    • Pleated media technology maximizes performance for the available space claim
    • Pleated ends are fully enclosed in urethane, providing a durable, leak-resistant seal while maintaining airflow that meets OE filter performance. 

  • Proven RadialSeal™ Sealing System 
    • Creates a reliable, vibration-resistant interface between the air cleaner and the filter

Applications

  • Fleetguard Direct Flow Air Cleaners are used in off-road applications; heavy-duty construction, mining, and ag equipment, skid steer loaders, cranes, forklifts, and telehandlers; plus compressors and generator sets

*Fleetguard® is a registered trademark of Cummins, Inc.  Direct Flow™ is a trademark of Fleetguard, Inc.

Servicing PowerCore Style Replacement Filters

  • The "round peg" not only fits in the square hole – it fits better. Simply remove the old filter and slide in the new Donaldson Blue filter. It’s that easy.

Mercedes-Benz® Actros® Air Filter Replacements

Donaldson Blue® replacement filters for Mercedes-Benz® Actros® Air Cleaners incorporate Donaldson’s most advanced air filtration innovations: PowerCore® and Ultra-Web® technologies.

Features

  • Proven PowerCore Filter Design
    • With more media packed into a smaller space and a simplified airflow path, PowerCore filter packs provide high performance with a low pressure drop
    • Rugged construction holds up in heavy-duty work environments
    • Dust encapsulation makes servicing easier and cleaner
    • PowerCore has been proven in field applications for more than 15 years

  • Proven Ultra-Web Fine Fiber Media
    • Protects engines and helps them last longer by delivering better initial and overall efficiency than cellulose media
    • Proven and proprietary Ultra-Web media technology delivers longer filter life, cleaner air, and greater cost savings than other types of cartridge filter media
    • Consisting of very fine, continuous, resilient fiber 0.2-0.3 micron in diameter, Ultra-Web forms a permanent nanofiber web with very fine interfiber spaces that trap dust on the surface of the media

Benefits

  • Fully integrated plastic shell
    • Creates a rigid structure that assures a tight seal
  • Top fin
    • Incorporates a durable, comfortable service handle

Applications

  • Mercedes-Benz Actros Air Cleaners with filter elements A0040946804 or A0040946904