Overflow and Breather Tanks

When it comes to breather and overflow tanks, STEF’S doesn’t fall short in selection! Originally designed as external dry sump tank breathers, STEF’S tanks can also be used as crankcase, transmission, and rear-end vent tanks. We also list an air/oil separator which has become an essential addition to any crankcase evacuation system. The tanks listed include a universal mounting bracket, male AN or NPT fitting, drain cock, and either a breather or 2″ twist off lid.

5100

5100

5110

5110

5122

5122

Part Number Description
Breather Tank – 1 Gal. W/2 K&N Style
Breather Tank – 1 1/2 Gal. W/2 K&N Style
Breather Overflow Tank-3″ x 10″ Long
Breather Overflow Tank-3″ x 7″ Long
Breather Overflow Tank-3″ x 7″/-12AN
Breather Overflow Tank-3″ x 7″/1/2 NPT-K&N
Breather Overflow Tank-5″ x 12″-”Lay Down”-2 K&N Style
Breather Overflow Tank-3″ x 10″/2-1/2 NPT-K&N
Air And Oil Separator
Air And Oil Separator -12AN IN -12AN OUT
Breather Tank for Rear End and Transmission
Air And Oil Separator 3/4” NPT IN 1/2” NPT OUT
5125, 5126 & 5127

5125, 5126 & 5127

5120

5120

Breather Only

Part Number
Description
Breather K&N Style W/ Grommet
Breather Chrysler Style W/ Grommet
Breather Push-In W/ Grommet

Catalog Page

Page 39

Page 39

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