Filters

Paper element to fit our 2" x 10" aluminum filter bodies.

This element should not be used with alcohol. Paper elements are so efficient in separating water from fuel that "icing" or blockage can occur with alcohol. Stainless elements should be used with alcohol.

NOTE: Spring and O-rings are not included with filter element and are shown for assembly reference only.

NOT compatible with ethanol OR alcohol.
Designed for race car use only.

Replacement 10" stainless filter elements to fit our 2" filter bodies. 45 micron. Designed for race car use only. Compatible with gasoline. NOT compatible with ethanol (E85).

NOTE: Spring and O-rings are not included with filter element and are shown for assembly reference only.

Fits K&N RD-4000 series. Tapered Filter Oval Red

Made from a durable polyspun material containing uniform micron openings. Recommended by engine builders and professional race teams around the world.
Keep the bigger and most damaging particles of sand, dirt, clay and oil drips from getting to and clogging the fins of your air cleaner element. Fits 14" standard air cleaner elements. (will not fit oversize elements). Available 5" tall.

Recommended for 14" x 4" size Filters

Available in six colors: yellow, red, orange, blue, purple and black.

Made from a durable polyspun material containing uniform micron openings. Recommended by engine builders and professional race teams around the world.
Keep the bigger and most damaging particles of sand, dirt, clay and oil drips from getting to and clogging the fins of your air cleaner element. Fits 14" standard air cleaner elements. (will not fit oversize elements). Available 4" tall.

Available in six colors: yellow, red, orange, blue, purple and, black.

Made from a durable polyspun material containing uniform micron openings. Recommended by engine builders and professional race teams around the world.
Keep the bigger and most damaging particles of sand, dirt, clay and oil drips from getting to and clogging the fins of your air cleaner element. Fits 14" air cleaner standard elements. (will not fit oversize elements). Available 3" tall.

Available in six colors: yellow, red, orange, blue, purple and, black.

Made from a durable polyspun material containing uniform micron openings.

Keep the bigger and most damaging particles of sand, dirt, clay and oil drips from getting to and clogging the fins of your valve cover breather filter.

Available in several colors: red, orange, yellow, blue, purple and, black.

For shielded or non-shielded breather your choice

Shielded Part# 564-1125-color
Non-Shielded Part# 564-1025-color

Filter Material: Reusable Cotton Gauze
Material Type: Cotton Gauze
Filter Color: Red
Color: Black
Overall Diameter: 14.00"
Overall Height: 4"
Inside Diameter: 12"
MFG. Part #: E-3750
Outside Diameter: 14"
Shape: Round
GTIN Code: 024844001443
Inner Wire: Yes
Info
K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of vehicles on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. See applicable instruction sheet for details. Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty and will be the last air filter your vehicle will ever need.
Specs
Inside Diameter: 12 in
Outside Diameter: 14 in
Filter Material: Cotton Gauze
Filter Re-Oiling Amount: 2.31-2.9 oz

Specially designed High Performance washable Air Filter. This filter has a proprietary sealing design. The softness of the urethane allows the filter to create its own gasket. The materials are depth loaded technology allowing for more dust to load the filter surface and not to impede the flow like "traditional" washable filters. Contains galvanized expanded metal to allow maximum compression with crushing the element. Greatly reduces engine wear.