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The Magnum and Magnum RS (Radial Seal) air filter range delivers exceptional service life and reliability.

The standard Magnum filter range offers axial seal protection and more media for greater dirt-holding capacity. This means longer life and less downtime caused by filter changes.

The Magnum RS series has the added feature of radial seals. These provide greater sealing protection to further reduce the amount of damage-causing dirt that reaches your engine’s critical components.

The Magnum range for mining applications has been further enhanced. The new, advanced design delivers significant improvements in air filter performance for off-highway use, with up to 25% more capacity. Global testing at Australian coal mine sites also demonstrated reduced maintenance costs and longer service life.

Many Magnum air filters are made to our high quality standards right here in Australia, so you can get the filter you need, when you need it. 



Should you change air filters by miles or hours?

Air filters should be changed only by engine manufacturer's recommendations on air restriction as measured by an air restriction gauge.

Will air filter efficiency change during the filter's life?

Air filter efficiency changes over time. Air filters are least efficient when new; dirt buildup on the outside of the filter makes it more efficient over time.

What is the difference between Cummins Filtration's Magnum and standard line of air filters?

Magnum air filters have more media and more surface area as a result, which extends filter life by providing more dirt holding capacity.

How often should I change my secondary element?

Secondary or inner elements should be changed every third change of the primary element. Secondary filters should not be disturbed until this interval has been reached.

What is Cummins Filtration's recommended air filter change interval?

Cummins Filtration recommends changing the air filter once you have reached 80% of the engine manufacturer's recommendations on air restriction. This ensures minimum downtime during filter change intervals.

What is a Radial Seal air filter?

Radial Seal is an air filter that is sealed radially at the inner diameter. Conventional air filters generally have gaskets glued on a metal endplate and seal when the gasket is compressed against the air housing. The radial seal, made from polyurethane, is molded as part of the endplate. The sealing occurs by pushing the air filter into the corresponding air housing. In the air housing, a conical adapter fits on the air outlet (clean air side) of the housing.

Why is grease supplied with each Radial Seal air filter?

Grease is currently applied at the factory at the time of production.

What are the comparative advantages of Radial Seal air filters above conventional air filters?

Radial Seal air filters are easier to install and require minimum handling (i.e., tightening with wingnut, or bolting to housing is not required). Also, because there are fewer components involved (i.e., no gluing of gasket to endplate or of filter media to endplate), there is less chance of failure.

Can I use a conventional secondary element with Radial Seal primary filters and vice versa?

No. Once your filter housing has been adapted to use Radial Seal air filters, you must use a radial seal type filter. If your housing has not been adapted for radial seal filters, you must use the standard type filter for proper internal sealing.


What is the micron rating of Cummins Filtration air filters?

Air filters are measured on an efficiency basis over a wide range of particle sizes. Micron ratings do not apply to air filters.