Green Filter® 2198 - PCV Breather without Shield

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Universal Fit
Fitment Notes:
  • Not Vehicle Specific
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Product Details

Green Filter Accessories

Universal PCV Breather without Shield (2198) by Green Filter®. Route your crankcase breather into one of these filters to keep dirt and bugs from entering your crankcase. It’s easy to clean, and will soak up some glop that otherwise would wind up all over your engine compartment.

Green Filter Why Go GreenGreen Filter BenefitsGreen Filter Cleaning


Top Outside Diameter: 3" (0.12 mm)
Mounting Outside Diameter: 1.375"(34.925 mm)
Height: 2.5"(63.5 mm)
Base Outside Diameter: 3"(76.2 mm)


  • Cotton element catches oily blow-by
  • Steel mesh resists denting
  • Prevents dirt and foreign objects from entering crankcase breather system
  • Resists clogging
  • Easily cleaned and reused
  • Keeps engine bay cleaner
  • Pre-oiled filter element the product is ready to install right out of the box
  • Limited Lifetime Warranty

All engines outgas crankcase fumes. That's a given. Crankcase vapors are a noxious miasma of cylinder blow by, oil fumes, water vapor, acids and partially burned fuel. Emissions controlled engines have sometimes elaborate systems to route this noxious gorp back into the intake manifold. Sometimes that works well, sometimes not. And as your engine gets older and the rings and valve stem seals wear, the volume of blow by inevitably increases. If you have an engine that's not emissions regulated, whether it's a racing engine, a small engine on a tractor or ATV, or just a stationary engine on a pump or generator, it's essential that a filter be installed on the vent. A filter will keep dirt from collecting inside the vent when the engine is off, and eventually migrating into the crankcase. And let's not even consider the damage a cache of spider eggs or even some nuts or seeds smuggled into the breather by a rodent could cause.

Adding a Green Filter crankcase filter will keep outside stuff outside of your engine. Because it passes airflow so easily, it will take a long time to accumulate enough congealed oil and sludge to plug. Like a Green Filter air filter, simply spray it down with cleaner, rinse it off in water, let it dry and re-oil. In fact, a Green Filter crankcase filter should catch a fair amount of oily blow by and keep it in the filter medium. That will keep your engine bay cleaner longer!

It's vital to maintain low restriction in the vent line, because pressurizing the crankcase will make oil leak in multiple places around the engine, and could even make the main seals invert or blow right out.

Long before they started producing filters for street cars, Green Filters® made custom air filters for the motorsports industry, with clients like MAZDASPEED, Chip Ganassi Racing, Saleen, and Toyota. These top names in road and off-road racing chose Green Filters for their superior performance and constantly-improving technology. Producing the same type of filter in fitments for street cars was a simple step, and the line of vehicles covered is constantly expanding. Better yet, their continuing role in motorsports keeps them at the cutting edge of air filter and cold air induction system technology.

Part Number:

Warranty Information

Green High Performance Air Filter Warranty Information

All Green High Performance Air Filters are designed to last for the lifetime of your vehicle and are covered by our Limited Lifetime Warranty.

A warranty card is included with every Green High Performance Air Filter purchased. If this card was lost or if you did not receive one you can download it here.

*NOTE: YOU MUST CALL FOR AN RGA NUMBER BEFORE SENDING ANY FILTER TO THE MANUFACTURER. Any filter sent to the Company without an RGA number may not be replaced. Please read the warranty carefully and make sure that all steps are followed to insure a quick replacement of your filter.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

Vehicle Fitment

This part is universal

Product Reviews


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Green Filter® - PCV Breather without Shield
Green Filter® 2198 - PCV Breather without Shield
Average Rating: 5 of 5
5 of 5
Excellent Filters
Green Filter® 2198 - Crankcase Air Filter with Rubber End Cap, without Shield (1.375 F x 2.5 L x 3 B x 3 D)
Very, very good filters! The best around. Know your fitment measurements!
ZPosted by (Martinez, CA) /
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