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.

Showing In Stock Items. Show All 21 Items.

Individual Parts

Part Groups

Results 1 - 14 of 14

Moroso PCV Air/Oil Separators 85472

Air, Oil, Separator Tank, Aluminum, Polished, 3 in. Diameter, 4 in. Height, Chrysler, Dodge, Kit

Part Number: MOR-85472

4.7 out of 5 stars ( 30 )

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Moroso PCV Air/Oil Separators for 2012-2017 WRANGLER - 85518

Air, Oil, Separator Tank, Aluminum, Polished, 2.875 in. Diameter, 4.5 in. Height, Jeep, Kit

Part Number: MOR-85518

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Oct 27, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 27, 2025 if ordered today

Moroso PCV Air/Oil Separators 85613

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

Part Number: MOR-85613

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 27, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 27, 2025 if ordered today

Moroso PCV Air/Oil Separators for 2015-2023 CHALLENGER - 85532

Oil Catch Cans, PCV Air/Oil Separators, Round, 7.5 oz. Capacity, Aluminum, Polished, Dodge, 6.2L, Kit

Part Number: MOR-85532

Not Yet Reviewed

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Moroso PCV Air/Oil Separators for 2007-2011 WRANGLER - 85517

Air, Oil, Separator Tank, Aluminum, Polished, 2.875 in. Diameter, 4.5 in. Height, Jeep, Kit

Part Number: MOR-85517

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Oct 23, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 23, 2025 if ordered today

Moroso PCV Air/Oil Separators for 2015-2019 CHALLENGER - 85696

Oil Catch Cans, PCV Air/Oil Separators, Round, 4.5 oz. Capacity, Aluminum, Polished, for Use with Shaker Hoods Only, Dodge, 5.7L, 6.4L, Kit

Part Number: MOR-85696

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 24, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 24, 2025 if ordered today

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

Estimated Ship Date: Tomorrow

...Loading

Estimated Ship Date: Tomorrow

Moroso PCV Air/Oil Separators for 2015-2019 CHALLENGER - 85697

Oil Catch Cans, PCV Air/Oil Separators, Round, 4.5 oz. Capacity, Aluminum, Black, for Use with Shaker Hoods Only, Dodge, 5.7L, 6.4L, Kit

Part Number: MOR-85697

Not Yet Reviewed

Estimated Ship Date: Oct 24, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 24, 2025 if ordered today

Moroso PCV Air/Oil Separators 85632

Air, Oil, Separator Tank, Aluminum, Natural, Dodge, 5.7L, Kit

Part Number: MOR-85632

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 24, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 24, 2025 if ordered today

Moroso PCV Air/Oil Separators for 2011-2014 1500, 2009-2010 RAM 1500 - 85479

Air, Oil, Separator Tank, Aluminum, Polished, 3 in. Diameter, 4 in. Height, Dodge, Kit

Part Number: MOR-85479

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Oct 27, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 27, 2025 if ordered today

Moroso PCV Air/Oil Separators 85612

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

Part Number: MOR-85612

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Oct 27, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 27, 2025 if ordered today

Moroso PCV Air/Oil Separators 85633

Air, Oil, Separator Tank, Aluminum, Black, Chrysler, Dodge, 5.7L, Kit

Part Number: MOR-85633

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Oct 27, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 27, 2025 if ordered today

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 27, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 27, 2025 if ordered today

Moroso PCV Air/Oil Separators for 2007-2011 WRANGLER - 85670

Oil Catch Cans, PCV Air/Oil Separators, Round, 4.5 oz. Capacity, Aluminum, Natural, 1/2 in. Hose Barb, Jeep, 3.8L, Kit

Part Number: MOR-85670

Not Yet Reviewed

Estimated Ship Date: Oct 27, 2025 if ordered today

...Loading

Estimated Ship Date: Oct 27, 2025 if ordered today

Page 1 of 1