AMSOIL EaAB Crankcase Breather Filters provide excellent oil vapor control, increased efficiency and superior engine performance in street rod and racing applications. EaAB Filters are a perfect complement to EaAR Filters, ensuring superior air filtration in high-performance and severe-service applications.
Why Are Crankcase Breathers Necessary?
Pressure builds in the engine crankcase due to vapor from hot engine oil and from exhaust gases that escape past the piston rings. A crankcase breather system is used to release this pressure. If the breather system becomes blocked,
the crankcase pressure builds internally. As the pressure increases, the oil can push through the area offering the least resistance, such as the dipstick or a seal. Crankcase breather filters are employed to ensure the crankcase does not become blocked with foreign materials as pressurized gases escape.
AMSOIL EaAB Filters
AMSOIL EaAB Filters are compatible with engines, transmissions and oil tanks, but are mainly designed for installation on valve covers used in high-performance and racing applications. EaAB Filters clamp directly to rubber tubing or push into rubber grommets. The EaAB-1511, EaAB-1513 and EaAB-1514 feature a chrome shield for added protection from direct contact with dirt and grime, and all EaAB Filters feature a chrome ring with AMSOIL engraved into the top. The EaAB-1491 is a push-in filter, and the others are all clamp-on designs.
Quality Construction
AMSOIL EaAB Filters are manufactured with the same super high-quality synthetic nanofibers used in other Ea 
Filters. Their wire-backed pleats provide additional strength and filter longevity. The signature AMSOIL Ea blue media and chrome detailing make these filters an attractive fit.
Cleanable
AMSOIL EaAB Filters are cleanable, offering longer filter life. They are cleaned in the same manner as other Ea Air Filters: using either low-pressure shop air on the clean side or a vacuum on the dirty side.
Applications
AMSOIL EaAB Filters are available for vehicles and equipment that can accept breather elements. The breathers are designed for installation on engine valve covers and other breather tubes, but can also be used on transmissions and industrial equipment.
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