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 49 Items.
Air, Oil, Separator Tank, Round, Aluminum, Natural, Male Fittings, -12AN, Mounting Clamp, Kit
Part Number: MOR-85495
Estimated Ship Date: Today
Estimated Ship Date: Today
Air, Oil, Separator Tank, Aluminum, Polished, 3.125 in. Diameter, 6 in. Height, Each
Part Number: MOR-85471
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Breather Tank, Vacuum/Dry Sump Breather, 1 qt., Round, Aluminum, Natural, Universal, Each
Part Number: MOR-85500
Estimated Ship Date: Today
Estimated Ship Date: Today
BREATHER 1-WAY VAC NO BUNG
Part Number: PFF-08-0452
Not Yet Reviewed
Estimated Ship Date: Mar 10, 2026 if ordered today
Estimated Ship Date: Mar 10, 2026 if ordered today
Oil Breather Tank, 1 qt., Round, Aluminum, Natural, Filtered Breather, Mounting Bracket, Petcock, Universal, Each
Part Number: MOR-85465
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Breather Tank, Aluminum, Natural, Dual -10 AN 180 Degrees Apart, Each
Part Number: MOR-85468
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Breather Tank, Aluminum, Natural, Dual -16 AN Female Thread, Dual Breathers, Each
Part Number: MOR-85391
Estimated Ship Date: Today
Estimated Ship Date: Today
Breather Tank, Dry Sump Breather, 1 qt., Round, Aluminum, Natural, Filtered Breather, Universal, Each
Part Number: MOR-85475
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Catch Can, Aluminum, Black Powdercoat, Round, 3 1/8 in. Diameter, 11.50 in. Height, Mounting Bracket Included, Each
Part Number: MOR-85753
Estimated Ship Date: Today
Estimated Ship Date: Today
Breather Tank, Aluminum, Natural, Dual -16 AN Inlet, Each
Part Number: MOR-85393
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Breather Tank, Compact, Round, 7 in. Tall, Aluminum, Black Anodized, Two -8 AN Male Fittings, Each
Part Number: MOR-85397
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Catch Can, Aluminum, Black, Round, 3.13 in. Diameter, 11.50 in. Height, Each
Part Number: MOR-85751
Estimated Ship Date: Today
Estimated Ship Date: Today
Breather Tank, Round, Aluminum, Natural, Each
Part Number: MOR-85469
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Breather Tank, Dry Sump Breather, 1 qt., Round, Polyethylene, Black, -8 AN Inlet, Universal, Each
Part Number: MOR-85404
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Breather Tank, Breather Tank, Two 3/8 in. NPT Female Bungs, 180 deg. Apart, 3 1/8 in. Dia, 11.50 in. Overall Height, Each
Part Number: MOR-85473
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Breather Tank, 2.5 qt., Round, Aluminum, Natural, Filtered Breather, Universal, Each
Part Number: MOR-85466
Estimated Ship Date: Today
Estimated Ship Date: Today
Separator Tank, Air/Oil, Aluminum, Natural, 3.125 in. Diameter, 7.0 in. Length, Each
Part Number: MOR-85467
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Breather Tank, Cylindrical, 1 qt. Capacity, Aluminum, Natural, -10 AN Male Threads Inlet, Each
Part Number: MOR-85459
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Catch Can, Aluminum, Natural, Round, 11.00 in. Tall, 7.00 in. Diameter, Each
Part Number: MOR-85395
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Breather Tank, Compact, Round, 7 in. Tall, Aluminum, Polished, Two -8 AN Male Fittings, Each
Part Number: MOR-85396
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Breather Tank, Dry Sump Breather, 1 qt., Round, Polyethylene, Black, -6 AN Inlet, Universal, Each
Part Number: MOR-85406
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Breather Tank, Round, Aluminum, Natural, -8 AN Male Inlet, Each
Part Number: MOR-85458
Estimated Ship Date: Mar 23, 2026 if ordered today
Estimated Ship Date: Mar 23, 2026 if ordered today
Oil Breather Tank, Dry Sump Breather, 1 qt., Round, Polyethylene, Black, -10 AN Inlet, Universal, Each
Part Number: MOR-85402
Estimated Ship Date: Today
Estimated Ship Date: Today
Oil Breather Tank, Aluminum, Natural, -6 AN Male Thread, Each
Part Number: MOR-85456
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Breather Tank, Round, Aluminum, Natural, 1 qt. Capacity, -12 AN Male Threads Inlet, Each
Part Number: MOR-85461
Estimated Ship Date: Today
Estimated Ship Date: Today
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