Donaldson Filters
Your full line filtration source – we have them all!

Donaldson Endurance™

Donaldson Endurance™ air and oil filters, available through AMSOIL, provide the highest level of filtration efficiency in the industry. Specifically designed for on-road, heavy-duty class 6, 7 and 8 vehicles, Donaldson Endurance™ air and oil filters feature exclusive nanofiber technology. Class 6 vehicles, 19,501 to 26,000 pounds gross vehicle weight (GVW), include single-axle vans, beverage trucks and school buses; class 7, 26,001 to 33,000 pounds GVW, include refuse trucks, tow trucks and city transit buses; class 8 trucks, 33,000 pounds GVW and greater, include fuel haulers, intercity/tour buses and cement trucks.

Oil Filters

When your oil filters are right, you know you’ve got peak engine and equipment performance. Donaldson delivers innovative designs, a complete product line and performance that meets or exceeds original equipment manufacturers’ specifications. Today’s heavy-duty engines require optimum filtration performance.

Air Filters

On-road or off-road, in all kinds of operating environments, Donaldson air filtration technology protects engines, delivers longer filter life and gives you the confidence that comes with using the industry leader. Donaldson has pioneered the development of nearly every major advancement in heavy-duty engine air filtration since 1915. We set the standard for filtration performance.

P-Series Filters

AMSOIL is now introducing the P-Series of Donaldson filters to complement the Endurance line. The expanded offering of filtration products features many applications that differ from, and several that coincide with the Endurance line. Donaldson P-Series filters offer premium filtration at a competitive price. AMSOIL now stocks all of Donaldson's most popular filter applications.

Top Spin Filters

The Donaldson TopSpin™ separates up to 85 percent of all incoming contaminants and more than 99 percent of particles 20 microns and larger, reducing air filter usage and greatly extending filter life. The TopSpin™ continues to work at engine idle, cleaning the incoming air even when the equipment is not moving. Pre-filtering incoming air provides lower restriction, improving engine performance and reducing filter costs. The TopSpin™ has a range of 90 - 1500 cubic feet per minute (CFM).

Donaldson EnduranceT Oil Filters

Product Code: ELF

The controlled media manufacturing process allows Donaldson EnduranceT oil filters to deliver both higher dirt holding capacity at the same pressure differential and higher efficiency compared to conventional cellulose filters. The synthetic media also has better durability with usage.

Throughout the service life of a cellulose filter, hot oil will degrade the resins that bind the media. The synthetic media technology uses a wire screen backing pleated with the media, resulting in superior strength.

Donaldson EnduranceT oil filters offer extended service intervals, greater engine protection to prolong engine and equipment life, improved lubricant flow, improved cold start performance and lower operating costs.

Donaldson EnduranceT Oil Filters With Nanofiber vs. Conventional Cellulose
Small, consistent synthetic fibers trap smaller particles and hold more contaminants, resulting in lower restriction.		Cellulose fibers are inconsistent in size and shape, allowing more contaminants to pass through, resulting in higher restriction and lower capacity.
	Red circle represents the diameter of a 20 micron particle.

Donaldson EnduranceT Air Filters

Product Code: EAF

Donaldson EnduranceT Air Filters with exclusive nanofiber technology offer longer engine life, longer filter life, initial efficiency up to 99.99 percent and five times more capacity.

The nanofiber technology causes submicron contaminants to be held on the surface layer of smaller fibers. This filtration characteristic is only possible with this new type of air filtration technology. In on-highway applications, where the contaminant is primarily submicron in size, Donaldson Endurance filters cause less restriction than conventional filters with cellulose media. The smaller interfiber spaces of nanofiber technology have a higher efficiency and capture more contaminant.

These air filters also are reusable. When the restriction gauge indicates replacement, the filter can be removed from the air box and cleaned with shop air up to five times.

Donaldson EnduranceT air filters are guaranteed to deliver twice the miles between change intervals over cellulose air filters for on-highway applications or customers receive a new filter at no charge.

Donaldson EnduranceT Air Filters With Nanofiber vs. Conventional Cellulose
Nanofibers have submicron diameters and small interfiber spaces, which result in more contaminant being captured on the surface of the media and lower restriction.	Red circles represent the diameter of a 2 micron and a 5 micron particle.	Cellulose fibers are larger than nanofibers, and have larger spaces between the fibers, causing contaminant to be held in the depth of the media and plug the airflow path; resulting in higher restriction and less capacity.