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

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.

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Peterson Fluid Systems Breather Cans 08-0400

Peterson Fluid Systems Breather Cans 08-0400

Oil Breather Tank, Round, Aluminum, Natural, -12 AN, Universal, Each

Part Number: PFF-08-0400

5.0 out of 5 stars ( 1 )

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Summit Racing™ Breather Tanks SUM-300105

Breather Tank, Oil Control System, Bolt-In 16 oz. Polished Round Aluminum Tank with Filtered Breather, Valve Cover Breathers, Hose, Universal, Kit

Part Number: SUM-300105

4.66 out of 5 stars ( 47 )

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Peterson Fluid Systems Breather Cans 08-0410

Oil Breather Tank, Round, Aluminum, Natural, -12 AN, Filtered Breather, Universal, Each

Part Number: PFF-08-0410

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

Peterson Fluid Systems Oil Catch Cans 08-0405

BREATHER CAN LS7

Part Number: PFF-08-0405

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Peterson Fluid Systems Oil Catch Cans 08-0420

OIL CATCH CAN

Part Number: PFF-08-0420

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Peterson Fluid Systems Oil Catch Cans 08-0406

ONE GALLON BREATHER CAN

Part Number: PFF-08-0406

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Peterson Fluid Systems Oil Catch Cans 08-0412

OIL CATCH CANISTER

Part Number: PFF-08-0412

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Peterson Fluid Systems Oil Catch Cans 08-0414

BREATHER CAN -16

Part Number: PFF-08-0414

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

Peterson Fluid Systems Oil Catch Cans 08-0452

BREATHER 1-WAY VAC NO BUNG

Part Number: PFF-08-0452

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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J&L Oil Separator Co. 3.0 Oil Separators 3084D-B

Oil Catch Can, Oil Separator, Round, Billet Aluminum, Black Anodized, 3/8 in. NPT Female Threads, Driver Side, Chevy, GMC, 4.8, 5.3, 6.0, 6.2L, Kit

Part Number: JLT-3084D-B

4.8 out of 5 stars ( 10 )

Estimated Ship Date: Tomorrow

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Summit Racing™ Ultimate Oil Separators and Catch Cans SUM-300150

Ultimate Catch Can Assembly, Billet Aluminum, Black, External Ventilated, Standard Capacity, Each

Part Number: SUM-300150

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Improved Racing CCS Oil Catch Can Kits CCS-GM-101

Oil Catch Can, CCS, 7 oz., Oil Separator, Recirculating, Aluminum, Black, Round, Buick, Chevy, Cadillac, Pontiac, 5.3L, 5.7L, 6.0L, 6.2L, 7.0L, Kit

Part Number: IRP-CCS-GM-101

5.0 out of 5 stars ( 2 )

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Corsa Oil Catch Cans CC0001

Oil Catch Can, Round, 3 oz., Aluminum, Black Anodized, Chevy, GMC, Kit

Part Number: CSE-CC0001

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

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J&L Oil Separator Co. 3.0 Oil Separators for 2018-2021 EXPEDITION, 2011-2025 F-150 - 3016P-B

Oil Catch Can, Oil Separator, Round, Billet Aluminum, Black Anodized, 3/8 in. NPT Female Threads, Passenger Side, Ford, Kit

Part Number: JLT-3016P-B

4.64 out of 5 stars ( 61 )

Estimated Ship Date: Tomorrow

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Summit Racing™ Breather Tanks SUM-300104

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: Tomorrow

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J&L Oil Separator Co. 3.0 Oil Separators 3085D-B

Oil Catch Can, Oil Separator, Round, Billet Aluminum, Black Anodized, 3/8 in. NPT Female Threads, Driver Side, Cadillac, Chevy, GMC, 5.3L, 6.2L, Kit

Part Number: JLT-3085D-B

4.77 out of 5 stars ( 22 )

Estimated Ship Date: Tomorrow

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J&L Oil Separator Co. 3.0 Oil Separators 3063P-B

Oil Catch Can, Oil Separator, Round, Billet Aluminum, Black Anodized, 3/8 in. NPT Female Threads, Passenger Side, Chrysler, Dodge, Jeep, 6.4L, Kit

Part Number: JLT-3063P-B

4.43 out of 5 stars ( 35 )

Estimated Ship Date: Tomorrow

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J&L Oil Separator Co. 3.0 Oil Separators for 2010-2015 CAMARO - 3080P-B

Oil Catch Can, Oil Separator, Round, Billet Aluminum, Black Anodized, 3/8 in. NPT Female Threads, Passenger Side, Chevy, 6.2L, Kit

Part Number: JLT-3080P-B

4.92 out of 5 stars ( 12 )

Estimated Ship Date: Tomorrow

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J&L Oil Separator Co. 3.0 Oil Separators 3086D-B

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

4.82 out of 5 stars ( 17 )

Estimated Ship Date: Tomorrow

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Summit Racing™ Ultimate Oil Separators and Catch Cans SUM-300151

Ultimate Catch Can Assembly, Billet Aluminum, Black, External Ventilated, High Capacity, Each

Part Number: SUM-300151

Not Yet Reviewed

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Summit Racing™ Ultimate Oil Separators and Catch Cans SUM-300152

Ultimate Catch Can Assembly, Billet Aluminum, Black, Recirculating Pressure Relief, Standard Capacity, Each

Part Number: SUM-300152

Not Yet Reviewed

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J&L Oil Separator Co. 3.0 Oil Separators 3060P-B

Oil Catch Can, Oil Separator, Round, Billet Aluminum, Black Anodized, 3/8 in. NPT Female Threads, Passenger Side, Dodge, Jeep, 6.2L, Kit

Part Number: JLT-3060P-B

4.56 out of 5 stars ( 16 )

Estimated Ship Date: Tomorrow

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Ford Performance Parts Coyote Oil-Air Separator Kits for 2011-2014 F-150, 2011-2020 MUSTANG - M-6766-A50

Separator Tank, Coyote Oil-Air, Plastic, Black, Male Quick-connect, Ford, F-150, Mustang GT/Boss 302/GT350, 5.0L, 5.2L, Each

Part Number: FMS-M-6766-A50

4.87 out of 5 stars ( 63 )

Estimated Ship Date: Tomorrow

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Allstar Performance Breather Tanks ALL36109

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 )

Estimated Ship Date: Tomorrow

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J&L Oil Separator Co. 3.0 Oil Separators 3061P-B

Oil Catch Can, Oil Separator, Round, Billet Aluminum, Black Anodized, 3/8 in. NPT Female Threads, Passenger Side, Chrysler, Dodge, 5.7L, Kit

Part Number: JLT-3061P-B

4.64 out of 5 stars ( 25 )

Estimated Ship Date: Tomorrow

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