Need an aFe Air Filter?

Pro Dry S Air Filters:

aFe offers you a better choice of oil-free filters: New Pro Dry S synthetic dry-media filters. Pro Dry S filters use a revolutionary two-ply synthetic material that is functionally superior to traditional paper media and single-ply synthetic, and easy to service. Pro Dry S dry-media filters increase airflow providing improved horsepower, torque, and fuel economy with 99.2%* filtration efficiency. Perhaps the greatest benefit of new Pro Dry S filters is the convenience of servicing these oil-free filters. To clean a Pro Dry S filter lightly tap it on the ground, vacuum it, or wash with soap and water. Solvents and oiling are not necessary. Replacement Pro Dry S filters for all air intake systems are also available and sold individually.


Pro 5R Air Filters:

Only aFe Pro-5R media is progressive in nature, offering 5 layers of progressively more tightly woven cotton gauze for protection levels in the high 98% range without sacrificing airflow. This high flow oiled conical performance filter provides excellent airflow for maximum horsepower and torque. Washable and reusable for multiple cleanings, the tall, open, evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Pliable polyurethane flange with integrated bumps insures tight, no leak seal over the life of the filter


Pro GUARD 7 Air Filters:

To address the need for extra protection from dust and dirt with washable/reusable oil-impregnated cotton gauze filters, aFe developed a new filtration technology so revolutionary that we applied for and received a patent. This new filtration technology is aptly called Pro-GUARD 7. With 5 layers of progressively finer mesh medical grade cotton gauze with micro fibers that attract smaller and smaller particles as air passes through is combined with 2 layers of random-porosity non-woven synthetic polyester fabric. These 7 layer combination of cotton gauze and non-woven polyester is sandwiched between 2 layers of epoxy coated aluminum wire mesh.

Because of compression ignition of diesel engines, the tolerance is much tighter than in a gasoline spark ignition engine. These tight tolerances require clean air and lots of it. Diesel engines require 7 times more air than a gasoline engine of equivalent size. The patented Pro-GUARD 7 filter media delivers more cool clean air needed for extended engine life, better fuel economy and additional power

Efficiency refers to a filters ability to efficiently filter out the dust and dirt particles from entering the air intake of the vehicle over time. Pro-GUARD 7 was developed with the need for high efficiency in mind. Generally accepted SAE standard for filtration efficiency is 99.5% fine dust. There is course dust efficiency and fine dust efficiency. 99.50% course dust efficiency is not difficult to achieve. Typical performance/cotton gauze filters will five you the airflow you need, but they sacrifice filtration efficiency to do so. They achieve the 99.5% course dust efficiency. The 99.5% fine dust efficiency is a different matter. Fine dust is what you want to keep out in the tighter tolerance turbo diesel engine. Pro-GUARD 7has been tested to surpass 99.5% fine dust filtration efficiency while delivering high airflow.


Give us a call at 714-848-2170 M-F from 8-5 PST – We will answer your questions regarding  aFe Filters. Ask about Free Shipping!

Live locally? Feel free to stop by our location and meet us! OC DIESEL, INC. is located at 17242 Gothard Street, Huntington Beach, CA 92647 Suites A and B. In addition to carrying aFe Filters, we have a full service shop staffed with knowledgeable technicians who are ready to squash any Diesel Repair issues.

The Diesel Performance Experts