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Oil Catch Cans & Breather Tanks

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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.

Individual Parts

Results 1 - 25 of 95

CCS oil catch can drain plug

Part Number: IRP-HSC-6000

Not Yet Reviewed

Estimated Ship Date: Mar 11, 2026 if ordered today

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Estimated Ship Date: Mar 11, 2026 if ordered today

Breather Tank, Bolt-In, 16 oz. Capacity, Round, Aluminum, Polished, Vented with Filtered Breather, (2) 3/8" NPT Female Inlet Ports, Universal, Each

Part Number: SUM-300104

4.73 out of 5 stars ( 22 )

Estimated Ship Date: Today

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PCV Air, Oil Separator Tank, Aluminum, Black Anodized, Universal, Each

Part Number: TFS-51400850

4.5 out of 5 stars ( 4 )

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Breather Tank, Round, Aluminum, Natural, 3 in. Diameter, 11.5 in. Tall, 3/8 NPT Bungs, Universal, Each

Part Number: AAF-ALL36109

4.77 out of 5 stars ( 30 )

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Oil Catch Can, Baffled, Round, Aluminum, Black Anodized, Black Silicone Hoses, Chevy, 6.2L, Kit

Part Number: MIO-MMBCCCAM816P

4.38 out of 5 stars ( 21 )

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Oil Catch Cans, Black Anodized, Aluminum, 3.5 oz Capacity, 4 in. Height, 2.38 in. Diameter, Hose Barb, Rubber Hose Included, Universal, Kit

Part Number: RNB-46110

4.5 out of 5 stars ( 2 )

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Breather Tank, Bolt-in, 16 oz. Capacity, Round, Aluminum, Polished, Vented with Filtered Breather, (1) -12 AN Male Inlet Port, Universal, Each

Part Number: SUM-300107

5.0 out of 5 stars ( 2 )

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PCV Air, Oil Separator Tank, Aluminum, Black Anodized, Universal, Kit

Part Number: TFS-K51400850

5.0 out of 5 stars ( 3 )

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Oil Catch Can, Baffled, 2-port Design Can, Round, 3 oz. Capacity, Aluminum, Black, M16 x 1.5 Female Threads, Kit

Part Number: MIO-MMBCCCBTWOBK

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PCV Air, Oil Separator Tank, Aluminum, Black Anodized, Universal, Pair

Part Number: TFS-51400852

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Oil Catch Can, Baffled, Round, Aluminum, Black with Black Hoses, Chevy, Manual, Kit

Part Number: MIO-MMBCCCSS10P

5.0 out of 5 stars ( 1 )

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Oil BreatherTank, Dry Sump Breather, Round, Aluminum, Natural, Filtered Breather, Universal, Each

Part Number: AAF-ALL36108

4.67 out of 5 stars ( 9 )

Estimated Ship Date: Today

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Oil Catch Can, Baffled, 3-port Design Can, Round, 3 oz. Capacity, Aluminum, Black, M16 x 1.5 Female Threads, Kit

Part Number: MIO-MMBCCCBTHRBK

Not Yet Reviewed

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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 4, 2026 if ordered today

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Estimated Ship Date: Mar 4, 2026 if ordered today

Air Oil Separator - Universal Kit

Part Number: RDM-20-0219

Not Yet Reviewed

Estimated Ship Date: Mar 5, 2026 if ordered today

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Estimated Ship Date: Mar 5, 2026 if ordered today

Oil Catch Cans, High-Flow, Baffled, Aluminum, Powdercoated Black, Bracket, Fittings, Hardware, Universal, Kit

Part Number: MIO-MMBCC-HF

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Oil Catch Cans, Parallel Port, Baffled, Aluminum, Powdercoated Black, 50 Micron, Bracket, Fittings, Hardware, Universal, Kit

Part Number: MIO-MMBCC-PPTWO

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Oil Catch Can, Baffled, Round, 3 oz. Capacity, Aluminum, Black, 3/8 in. Hose Barb, for use on Honda®, Kit

Part Number: MIO-MMBCCCIV16P

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Oil Catch Can, Baffled, Round, 7.5 oz. Capacity, Aluminum, Black, 1/2 in. Hose Barb, Dodge, Ram, Kit

Part Number: MIO-BCCRAM09PBE2

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 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 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Oil Catch Can, Baffled, Round, 3 oz. Capacity, Aluminum, Black, Female Threads, Cadillac, Chevrolet, GMC, Kit

Part Number: MIO-MMBCCK214

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 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 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

PCV Air, Oil Separator Tank, Aluminum, Black Anodized, Universal, Kit

Part Number: TFS-K51400852

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Oil Catch Can, Ford Fiesta ST Baffled Oil Catch Can Kit, 2014+

Part Number: MIO-MMBCCFIST14P

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today