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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.

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

Made in the USA J&L Oil Separator Co. 3.0 Oil Separators 3063P-B

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: Today

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

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

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: Today

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

Made in the USA J&L Oil Separator Co. 3.0 Oil Separators 3061P-B

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: Today

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

Made in the USA J&L Oil Separator Co. 3.0 Oil Separators 3060P-B

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: Today

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J&L Oil Separator Co. 3.0 Oil Separators for 2021-2024 1500 - 3071P-B

J&L Oil Separator Co. 3.0 Oil Separators for 2021-2024 1500 - 3071P-B

J&L Oil Separator Co. 3.0 Oil Separators for 2021-2024 1500 - 3071P-B

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

Part Number: JLT-3071P-B

5.0 out of 5 stars ( 1 )

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J&L Oil Separator Co. 3.0 Oil Separators for 2020-2025 GLADIATOR, 2018-2025 WRANGLER - 3069D-B

J&L Oil Separator Co. 3.0 Oil Separators for 2020-2025 GLADIATOR, 2018-2025 WRANGLER - 3069D-B

J&L Oil Separator Co. 3.0 Oil Separators for 2020-2025 GLADIATOR, 2018-2025 WRANGLER - 3069D-B

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

Part Number: JLT-3069D-B

Not Yet Reviewed

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J&L Oil Separator Co. 3.0 Oil Separators 3062P-B

Made in the USA J&L Oil Separator Co. 3.0 Oil Separators 3062P-B

J&L Oil Separator Co. 3.0 Oil Separators 3062P-B

Oil Catch Can, Oil Separator, Round, Billet Aluminum, Black Anodized, 3/8 in. NPT Female Threads, Passenger Side, Chrysler, Dodge, Jeep, 6.1L, Kit

Part Number: JLT-3062P-B

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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J&L Oil Separator Co. 3.0 Oil Separators for 2011-2025 DURANGO, 2011-2021 GRAND CHEROKEE - 3066P-B

J&L Oil Separator Co. 3.0 Oil Separators for 2011-2025 DURANGO, 2011-2021 GRAND CHEROKEE - 3066P-B

J&L Oil Separator Co. 3.0 Oil Separators for 2011-2025 DURANGO, 2011-2021 GRAND CHEROKEE - 3066P-B

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

Part Number: JLT-3066P-B

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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J&L Oil Separator Co. 3.0 Oil Separators for 2016-2024 DURANGO, 2016-2022 GRAND CHEROKEE - 3074P-B

J&L Oil Separator Co. 3.0 Oil Separators for 2016-2024 DURANGO, 2016-2022 GRAND CHEROKEE - 3074P-B

J&L Oil Separator Co. 3.0 Oil Separators for 2016-2024 DURANGO, 2016-2022 GRAND CHEROKEE - 3074P-B

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

Part Number: JLT-3074P-B

Not Yet Reviewed

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J&L Oil Separator Co. 3.0 Oil Separators for 2019-2024 1500 - 3067P-B

J&L Oil Separator Co. 3.0 Oil Separators for 2019-2024 1500 - 3067P-B

J&L Oil Separator Co. 3.0 Oil Separators for 2019-2024 1500 - 3067P-B

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

Part Number: JLT-3067P-B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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

Made in the USA J&L Oil Separator Co. 3.0 Oil Separators 3060P-C

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

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

Part Number: JLT-3060P-C

4.79 out of 5 stars ( 14 )

Estimated Ship Date: Today

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J&L Oil Separator Co. 3.0 Oil Separators for 2011-2023 300, CHALLENGER, CHARGER - 3068P-B

J&L Oil Separator Co. 3.0 Oil Separators for 2011-2023 300, CHALLENGER, CHARGER - 3068P-B

J&L Oil Separator Co. 3.0 Oil Separators for 2011-2023 300, CHALLENGER, CHARGER - 3068P-B

Oil Catch Can, Oil Separator, Round, Billet Aluminum, Black Anodized, 3/8 in. NPT Female Threads, Passenger Side, Chrysler, Dodge, 3.6L, Kit

Part Number: JLT-3068P-B

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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J&L Oil Separator Co. 3.0 Oil Separators for 2014-2022 CHEROKEE, 2007-2022 COMPASS, 2015-2021 RENEGADE - 3077D-B

J&L Oil Separator Co. 3.0 Oil Separators for 2014-2022 CHEROKEE, 2007-2022 COMPASS, 2015-2021 RENEGADE - 3077D-B

J&L Oil Separator Co. 3.0 Oil Separators for 2014-2022 CHEROKEE, 2007-2022 COMPASS, 2015-2021 RENEGADE - 3077D-B

J&L Oil Separator 3.0 Driver Side, Black Anodized (2014-2022 Jeep Cherokee 2.4L; 2017-2022 Jeep Compass 2.4L; 2015-2021 Jeep Renegade 2.4L)

Part Number: JLT-3077D-B

Not Yet Reviewed

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Moroso PCV Air/Oil Separators 85640

Moroso PCV Air/Oil Separators 85640

Moroso PCV Air/Oil Separators 85640

Air, Oil, Separator Tank, Aluminum, Polished, 2.125 in. Diameter, 4.5 in. Height, Chrysler, Dodge, Kit

Part Number: MOR-85640

Not Yet Reviewed

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Moroso PCV Air/Oil Separators 85641

Moroso PCV Air/Oil Separators 85641

Moroso PCV Air/Oil Separators 85641

Air, Oil, Separator Tank, Aluminum, Black Anodized, 2.125 in. Diameter, 4.5 in. Height, Chrysler, Dodge, Kit

Part Number: MOR-85641

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 15, 2025 if ordered today

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Estimated Ship Date: Oct 15, 2025 if ordered today

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