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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 37 Items.
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: Mar 18, 2026 if ordered today
Estimated Ship Date: Mar 18, 2026 if ordered today
Oil Breather Tank, Dry Sump Breather, 1 qt., Round, Polyethylene, Black, -6 AN Inlet, Universal, Each
Part Number: MOR-85406
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Breather Tank, Aluminum, Natural, -6 AN Male Thread, Each
Part Number: MOR-85456
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Air Oil Separator-Return Dual, PCV, Crankcase, 7 oz. Capacity, -6 AN, Billet Aluminum, Black, for use on Honda®, S2000, Kit
Part Number: RDM-200772
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Air Oil Separator-Return, PCV, 7 oz. Capacity, -6 AN, Billet Aluminum, Black, for use on Honda®, S2000, Kit
Part Number: RDM-20-0093-FL
Not Yet Reviewed
Estimated Ship Date: Mar 20, 2026 if ordered today
Estimated Ship Date: Mar 20, 2026 if ordered today
Air Oil Separator-Return, Crankcase, 7 oz. Capacity, -6 AN, Billet Aluminum, Black, for use on Honda®, S2000, Kit
Part Number: RDM-20-0096-FL
Not Yet Reviewed
Estimated Ship Date: Mar 19, 2026 if ordered today
Estimated Ship Date: Mar 19, 2026 if ordered today
Oil Catch Can Black Dual -10AN
Part Number: ICB-551084-10AN2
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
S550 Extreme Race Catch Can
Part Number: FHF-FP-S550-ERCC
Not Yet Reviewed
Estimated Ship Date: Mar 24, 2026 if ordered today
Estimated Ship Date: Mar 24, 2026 if ordered today
Oil Catch Can, Oil Separator, Round, Billet Aluminum, Black Anodized, 3/8 in. NPT Female Threads, Driver Side, Chevy, GMC, 5.3L, 6.2L, Kit
Part Number: JLT-3086D-B
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Catch Can, BMW N54 Baffled Oil Catch Can, CCV Side, 2006-2010
Part Number: MIO-BCCN5406CBE2
Not Yet Reviewed
Estimated Ship Date: Mar 16, 2026 if ordered today
Estimated Ship Date: Mar 16, 2026 if ordered today
Oil Catch Can, BMW 335i/335xi/135i Baffled Oil Catch Can, 2011-2013
Part Number: MIO-MMBCCN5511
Not Yet Reviewed
Estimated Ship Date: Mar 16, 2026 if ordered today
Estimated Ship Date: Mar 16, 2026 if ordered today
Oil Catch Can, Jeep Wrangler JL 2.0L Baffled Oil Catch Can, 2018+
Part Number: MIO-BCCJLH18CBE
Not Yet Reviewed
Estimated Ship Date: Mar 16, 2026 if ordered today
Estimated Ship Date: Mar 16, 2026 if ordered today
Engine Oil Catch Can Kit, fits Ford F-150 3.5L EcoBoost 2011-2014
Part Number: MIO-BCCF35T11SBE
Not Yet Reviewed
Estimated Ship Date: Mar 16, 2026 if ordered today
Estimated Ship Date: Mar 16, 2026 if ordered today
Catch Can, Dual, PCV and Crankcase, 7 oz. Capacity, -10 AN O-Ring, Billet Aluminum, Black, Toyota, Kit
Part Number: RDM-20-0387-FL
Not Yet Reviewed
Estimated Ship Date: Mar 19, 2026 if ordered today
Estimated Ship Date: Mar 19, 2026 if ordered today
Oil Catch Can, Oil Separator, Round, Billet Aluminum, Black Anodized, 3/8 in. NPT Female Threads, Passenger Side, Ford, 6.2L, Kit
Part Number: JLT-3036P-B
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Catch Can, Baffled, Round, 3 oz. Capacity, Aluminum, Black, Female Threads, Jeep, Kit
Part Number: MIO-BCCJLP18PBE
Not Yet Reviewed
Estimated Ship Date: Mar 16, 2026 if ordered today
Estimated Ship Date: Mar 16, 2026 if ordered today
Oil Catch Can, Baffled, Round, 5.3 oz. Capacity, Aluminum, Black, M27 x 2.0 Female Threads, Ford, Kit
Part Number: MIO-MMBCCF2D17BE
Not Yet Reviewed
Estimated Ship Date: Mar 16, 2026 if ordered today
Estimated Ship Date: Mar 16, 2026 if ordered today
Oil Catch Can, Baffled, Round, 5.3 oz. Capacity, Aluminum, Black, M27 x 2.0 Female Threads, Ford, Kit
Part Number: MIO-MMBCCF2D11BE
Not Yet Reviewed
Estimated Ship Date: Mar 16, 2026 if ordered today
Estimated Ship Date: Mar 16, 2026 if ordered today
Oil Catch Can, Baffled, Round, Aluminum, Black Anodized, Black Silicone Hoses, Ford, 5.0L, Kit
Part Number: MIO-MMBCCF15011P
Not Yet Reviewed
Estimated Ship Date: Mar 16, 2026 if ordered today
Estimated Ship Date: Mar 16, 2026 if ordered today
Catch Can, PCV, 7 oz. Capacity, -10 AN O-Ring, Billet Aluminum, Black, Cadillac, Chevy, GMC, Kit
Part Number: RDM-20-0233-FL
Not Yet Reviewed
Estimated Ship Date: Mar 20, 2026 if ordered today
Estimated Ship Date: Mar 20, 2026 if ordered today
PCV Air, Oil Separator Tank, Aluminum, Black Anodized, Universal, Kit
Part Number: TFS-K51400850
Estimated Ship Date: Today
Estimated Ship Date: Today
PCV Air, Oil Separator Tank, Aluminum, Black Anodized, Universal, Kit
Part Number: TFS-K51400852
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Catch Can, CCS, Oil Separator, 7.0 oz., 2.90 in. Round, Aluminum, Black, -6AN Female O-Ring, Universal, Kit
Part Number: IRP-CCS-700
Not Yet Reviewed
Estimated Ship Date: Mar 24, 2026 if ordered today
Estimated Ship Date: Mar 24, 2026 if ordered today
