Availability
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.
Showing In Stock Items. Show All 676 Items.
Air, Oil, Separator Tank, Aluminum, Polished, 3 in. Diameter, 4 in. Height, Kit
Part Number: MOR-85474
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Air, Oil, Separator Tank, Aluminum, Polished, 3 in. Diameter, 4 in. Height, Chevy, GMC, Hummer, Kit
Part Number: MOR-85481
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Air, Oil, Separator Tank, Round, Aluminum, Black Anodized, Rubber Hose, Mounting Clamp, Kit
Part Number: MOR-85497
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
PCV Air, Oil Separator Tank, Aluminum, Black Anodized, Universal, Each
Part Number: TFS-51400850
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Air, Oil, Separator Tank, Aluminum, Polished, 3 in. Diameter, 4 in. Height, Rubber Hose, Clamp, Chevy, Kit
Part Number: MOR-85487
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
PCV Air, Oil Separator Tank, Aluminum, Black Anodized, Universal, Kit
Part Number: TFS-K51400850
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Separator Tank, PCV Air/Oil Separator, Round, Aluminum, Polished, Chevy, Kit
Part Number: MOR-85521
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Oil Catch Cans, Air/Oil Separator Tank, Aluminum, Black Anodized, Large Body, Kit
Part Number: MOR-85531
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Air, Oil, Separator Tank, Round, Aluminum, Natural, Male Fittings, -12AN, Mounting Clamp, Kit
Part Number: MOR-85495
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Air, Oil, Separator Tank, Aluminum, Polished, 2.875 in. Diameter, 4.5 in. Height, Chevy, Kit
Part Number: MOR-85516
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Oil Catch Can, PCV Air-Oil Separator, Round, 3/8 in. Hose Barb Fittings, Aluminum, Polished Finish, with Mounting Clamp, 3/8 in. x 36 in. Hose, Kit
Part Number: MOR-85496
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Air, Oil, Separator Tank, Aluminum, Polished, 3 in. Diameter, 4 in. Height, Chrysler, Dodge, Kit
Part Number: MOR-85472
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Oil Catch Can, Harley-Davidson®, Milwaukee Eight, Black, Stock Air Cleaner, Screaming Eagle Air Cleaner, Kit
Part Number: MOR-85723
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Oil Catch Can, Oil/Air Separator, Plastic, Left Side, Ford, Ecoboost, 2.3L, Kit
Part Number: FMS-M-6766-A23
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Air, Oil, Separator Tank, Aluminum, Polished, 3 in. Diameter, 4 in. Height, Ford, Kit
Part Number: MOR-85477
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Oil Catch Can, Aluminum, Black, 3 in. Diameter, 4 in. Height, Chevy, Each
Part Number: MOR-85533
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Air, Oil, Separator Tank, Round, Aluminum, Polished, 1/2 in. Hose Barb, Rubber Hose, Ford, 4.6L Modular, Kit
Part Number: MOR-85486
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Air, Oil, Separator Tank, Aluminum, Natural, Mazda, 1.6, 1.8L, Kit
Part Number: MOR-85600
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Oil Catch Can, Harley-Davidson®, Milwaukee Eight, Polished, Stock Air Cleaner, Screaming Eagle Air Cleaner, Kit
Part Number: MOR-85722
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
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
Estimated Ship Date: Tomorrow
Air, Oil, Separator Tank, Aluminum, Polished, 2.875 in. Diameter, 4.5 in. Height, Jeep, Kit
Part Number: MOR-85517
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Air, Oil, Separator Tank, Aluminum, Polished, 2.875 in. Diameter, 4.5 in. Height, Jeep, Kit
Part Number: MOR-85518
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Air, Oil, Separator Tank, Aluminum, Polished, 2.125 in. Diameter, 4.5 in. Height, Chrysler, Dodge, Kit
Part Number: MOR-85612
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Air, Oil, Separator Tank, Aluminum, Polished, 2.125 in. Diameter, 4.5 in. Height, Mini, Kit
Part Number: MOR-85608
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Air, Oil, Separator Tank, Aluminum, Black Anodized, 2.125 in. Diameter, 4.5 in. Height, Chrysler, Dodge, Kit
Part Number: MOR-85613
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
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