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Oil Catch Cans & Breather Tanks
Oil catch cans and breather tanks look similar and do similar jobs, but they serve different purposes.
Oil Catch Cans
Normally, the PCV (positive crankcase ventilation)...
Oil catch cans and breather tanks look similar and do similar jobs, but they serve different purposes.
Oil Catch Cans
Normally, the PCV (positive crankcase ventilation) valve uses intake vacuum to relieve the pressure inside your crankcase, but that can result in oil mist and other blow-by contaminants building up on the valve and pistons, especially in direct-injection engines. An oil catch can (sometimes called an air/oil separator) is installed between the PCV valve and the intake, where it removes contaminants and allows only clean air to return to the intake manifold. Some have a reservoir that needs to be drained...
Oil catch cans and breather tanks look similar and do similar jobs, but they serve different purposes.
Oil Catch Cans
Normally, the PCV (positive crankcase ventilation) valve uses intake vacuum to relieve the pressure inside your crankcase, but that can result in oil mist and other blow-by contaminants building up on the valve and pistons, especially in direct-injection engines. An oil catch can (sometimes called an air/oil separator) is installed between the PCV valve and the intake, where it removes contaminants and allows only clean air to return to the intake manifold. Some have a reservoir that needs to be drained regularly, while others are plumbed to return the oil to the crankcase.
Breather Tanks
In forced induction and racing applications, the build-up of crankcase pressure can be much greater, so a breather tank is designed to vent that excess pressure into the atmosphere. They capture some blow-by with a catch can and air filter, and they may have an oil return. Importantly, breather tanks may not meet local emissions standards.
Top Brands
These devices are easy insurance for your high performance engine, and some builders use both a catch can and a breather tank. Summit Racing Equipment carries catch cans from trusted brands like Moroso, Mishimoto, Canton Racing, Ford Performance, JLT Performance, and many more.
Showing In Stock Items. Show All 34 Items.
Crankcase Ventilation and Oil Water Separation Catch Can, Chevy, GMC, 3.0L Duramax, Plastic, Black, Kit
Part Number: PPE-114023000
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Crankcase Ventilation and Oil Water Separation Catch Can GMC, 3.0L Duramax, Plastic, Black, Kit
Part Number: PPE-114023050
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Crankcase Ventilation and Oil Water Separation Catch Can, Ram, 3.0L EcoDiesel, Plastic, Black, Kit
Part Number: PPE-214023000
Not Yet Reviewed
Estimated Ship Date: Dec 4, 2026 if ordered today
Estimated Ship Date: Dec 4, 2026 if ordered today
Oil Catch Can, Round, Aluminum, Black Anodized, 0.3 Gallon Capacity, Ford, Kit
Part Number: MIO-MMBCCFRD11P
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Catch Can, Universal, 7 oz. Capacity, -10 AN Fittings, -10 AN Hose, Billet Aluminum, Black, Kit
Part Number: RDM-20-1810-FL
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Oil Catch Can, Universal, Round, 20 oz. Capacity, Aluminum, Black, Two -10 AN O-ring Female AN O-ring, One -10 AN O-ring Female O-ring, Kit
Part Number: RDM-20-0219
Not Yet Reviewed
Estimated Ship Date: Nov 20, 2026 if ordered today
Estimated Ship Date: Nov 20, 2026 if ordered today
Catch Can, Universal, 7 oz. Capacity, -8 AN Fittings, -8 AN Hose, Billet Aluminum, Black, Kit
Part Number: RDM-20-1808-FL
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Air Oil Separator, Universal, 20.3 oz. Capacity, -10 AN O-Ring, Billet Aluminum, Black, Kit
Part Number: RDM-20-0819
Not Yet Reviewed
Estimated Ship Date: Nov 18, 2026 if ordered today
Estimated Ship Date: Nov 18, 2026 if ordered today
Catch Can, Universal, 7 oz. Capacity, -6 AN Fittings, -6 AN Hose, Billet Aluminum, Black, Kit
Part Number: RDM-20-1806-FL
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Oil Catch Can, Baffled, Round, Aluminum, Black Anodized, Black Silicone Hoses, Honda, Civic, 1.5L, Kit
Part Number: MIO-MMBCCCIV22P
Not Yet Reviewed
Estimated Ship Date: Nov 16, 2026 if ordered today
Estimated Ship Date: Nov 16, 2026 if ordered today
Oil Catch Can, Round, Aluminum, Black Anodized, 2 oz. Capacity, Nissan, Kit
Part Number: MIO-MMBCC-Z-23P
Not Yet Reviewed
Estimated Ship Date: Nov 16, 2026 if ordered today
Estimated Ship Date: Nov 16, 2026 if ordered today
Oil Catch Can, Round, Aluminum, Black Anodized, , Chevy, GMC, 5.3L, 6.2L, Kit
Part Number: MIO-MMBCC-T1-19
Estimated Ship Date: Nov 16, 2026 if ordered today
Estimated Ship Date: Nov 16, 2026 if ordered today
Oil Catch Can, Baffled, Round, Aluminum, Black Anodized, Black Silicone Hoses, Ford, Bronco, 2.3L, Kit
Part Number: MIO-MMBCCBR2723S
Not Yet Reviewed
Estimated Ship Date: Nov 16, 2026 if ordered today
Estimated Ship Date: Nov 16, 2026 if ordered today
Oil Catch Can, Round, Aluminum, Black Anodized, 12 oz. Capacity, Ford, 3.5L, Kit
Part Number: MIO-MMBCCF35T21
Estimated Ship Date: Nov 16, 2026 if ordered today
Estimated Ship Date: Nov 16, 2026 if ordered today
Oil Catch Can, Dual, Baffled, Round, Aluminum, Black Anodized, Black Silicone Hoses, Ford. Kit
Part Number: MIO-MMBCCBR2721S
Not Yet Reviewed
Estimated Ship Date: Nov 16, 2026 if ordered today
Estimated Ship Date: Nov 16, 2026 if ordered today
Oil Catch Can, Nissan 370Z Direct Fit, Dual Catch Can Kit, 50 Micron Filter, Sold as a Kit
Part Number: MIO-MMBCC370Z09P
Not Yet Reviewed
Estimated Ship Date: Nov 16, 2026 if ordered today
Estimated Ship Date: Nov 16, 2026 if ordered today
Oil Catch Can, Round, Aluminum, Natural, 1 qt. Capacity, Each
Part Number: MIO-MMOCC-LA
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Oil Catch Can, Round, Aluminum, Black Anodized, 16 oz. Capacity, Each
Part Number: MIO-MMOCC-RB
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Oil Catch Can, Round, Aluminum, Natural, 1/2 qt. Capacity, Each
Part Number: MIO-MMOCC-SA
Estimated Ship Date: Nov 16, 2026 if ordered today
Estimated Ship Date: Nov 16, 2026 if ordered today
Engine Oil Separator
Part Number: MIO-MMOCC-LAWBK
Estimated Ship Date: Nov 16, 2026 if ordered today
Estimated Ship Date: Nov 16, 2026 if ordered today
Oil Catch Can, Round, Carbon Fiber, Each
Part Number: MIO-MMOCC-CF
Estimated Ship Date: Nov 16, 2026 if ordered today
Estimated Ship Date: Nov 16, 2026 if ordered today
Engine Oil Separator
Part Number: MIO-MMOCC-SAWRD
Not Yet Reviewed
Estimated Ship Date: Nov 16, 2026 if ordered today
Estimated Ship Date: Nov 16, 2026 if ordered today
Engine Oil Separator
Part Number: MIO-MMOCC-LAWRD
Not Yet Reviewed
Estimated Ship Date: Nov 16, 2026 if ordered today
Estimated Ship Date: Nov 16, 2026 if ordered today
Air, Oil, Separator Tank, Aluminum, Black Anodized, 2.125 in. Diameter, 4.5 in. Height, Subaru, Kit
Part Number: MOR-85647
Not Yet Reviewed
Estimated Ship Date: Nov 30, 2026 if ordered today
Estimated Ship Date: Nov 30, 2026 if ordered today
Air, Oil, Separator Tank, Round, Aluminum, Polished, 3/8 in. Hose Barb, Rubber Hose, Subaru, Kit
Part Number: MOR-85510
Not Yet Reviewed
Estimated Ship Date: Nov 30, 2026 if ordered today
Estimated Ship Date: Nov 30, 2026 if ordered today
