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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Results 1 - 25 of 513

Canton Racing Breather Tanks 23-032

Canton Racing Breather Tanks 23-032

Overflow Tank, 16 oz., Round, Aluminum, Natural, 3/8 in. NPT Inlet, Universal, Kit

Part Number: CTR-23-032

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

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

4.64 out of 5 stars ( 44 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

Canton Racing Breather Tanks 23-033

Overflow Tank, 1.5 qt., Round, Aluminum, Natural, -12 in. NPT Inlet, Universal, Kit

Part Number: CTR-23-033

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

Canton Racing Breather Tanks 23-030

Overflow Tank, 24 oz., Round, Aluminum, Natural, 3/8 in. NPT Inlet, Universal, Kit

Part Number: CTR-23-030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Sep 15, 2025 if ordered today

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Estimated Ship Date: Sep 15, 2025 if ordered today

Canton Racing Breather Tanks 23-036

Overflow Tank, 24 oz., Round, Aluminum, Natural, 1.50 in. Inlet, Universal, Kit

Part Number: CTR-23-036

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Sep 15, 2025 if ordered today

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Estimated Ship Date: Sep 15, 2025 if ordered today

Stef's Breather Tanks 5110

Overflow Tank, 2 Pints, Round, Aluminum, Natural, -10 AN Inlet/Petcock Outlet, Universal, Each

Part Number: STF-5110

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

Canton Racing Breather Tanks 23-031

Overflow Tank, 24 oz., Round, Aluminum, Natural, -12 AN Inlet, Universal, Kit

Part Number: CTR-23-031

Not Yet Reviewed

Estimated Ship Date: Sep 15, 2025 if ordered today

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Estimated Ship Date: Sep 15, 2025 if ordered today

Kuryakyn Bluegrass Breather Kits 9932

Overflow Tank, Bluegrass Breather, 20cc Capacity, Round, Steel, Chrome, Harley-Davidson®, Kit

Part Number: KUR-9932

Not Yet Reviewed

Estimated Ship Date: Sep 12, 2025 if ordered today

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Estimated Ship Date: Sep 12, 2025 if ordered today

Transmission Specialties Oil Catch Cans 2546

PG OVERFLOW TANK

Part Number: TOS-2546

Not Yet Reviewed

Estimated Ship Date: Sep 15, 2025 if ordered today

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Estimated Ship Date: Sep 15, 2025 if ordered today

Kuryakyn Bluegrass Breather Kits 9930

Overflow Tank, Bluegrass Breather, 20cc Capacity, Round, Steel, Chrome, Harley-Davidson®, Kit

Part Number: KUR-9930

Not Yet Reviewed

Estimated Ship Date: Sep 15, 2025 if ordered today

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Estimated Ship Date: Sep 15, 2025 if ordered today

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

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

Moroso Breather Tanks 85465

Oil Breather Tank, 1 qt., Round, Aluminum, Natural, Filtered Breather, Mounting Bracket, Petcock, Universal, Each

Part Number: MOR-85465

4.65 out of 5 stars ( 20 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

Vibrant Performance Gen 3 Catch Cans 12761

Catch Can, Round, Aluminum, Black Anodized, 2-Port model, 4.40 in. Diameter, 8.25 in. Height, Each

Part Number: VPE-12761

Not Yet Reviewed

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

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: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

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: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

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 ( 1 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

Vibrant Performance Gen 3 Catch Cans 12760

Catch Can, Round, Aluminum, Black Anodized, 2-Port model, 4.40 in. Diameter, 4.93 in. Height, Each

Part Number: VPE-12760

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

J&L Oil Separator Co. 3.0 Oil Separators for 2018-2021 EXPEDITION, 2011-2024 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

4.63 out of 5 stars ( 60 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

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 ( 62 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

K&N Oil Catch Cans 81-0805

Oil Catch Can, Round, Aluminum, Black, 6.0 oz. Capacity, Cadillac, Chevy, GMC, Kit

Part Number: KNN-81-0805

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

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

4.41 out of 5 stars ( 34 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

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: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

K&N Oil Catch Cans for 2011-2023 F-150 - 81-0800

Oil Catch Can, Round, Aluminum, Black, 6.0 oz. Capacity, Ford, Kit

Part Number: KNN-81-0800

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

Moroso Breather Tanks 85468

Oil Breather Tank, Aluminum, Natural, Dual -10 AN 180 Degrees Apart, Each

Part Number: MOR-85468

4.44 out of 5 stars ( 9 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

Moroso PCV Air/Oil Separators 85497

Air, Oil, Separator Tank, Round, Aluminum, Black Anodized, Rubber Hose, Mounting Clamp, Kit

Part Number: MOR-85497

4.71 out of 5 stars ( 21 )

Estimated Ship Date: Monday 8/25/2025

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Estimated Ship Date: Monday 8/25/2025

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