Offenhauser 3661 Breather
$80.00Overall Width – 3-1/4″
Base Width  – 2-3/4″
Height     – 1-3/4″
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Overall Width – 3-1/4″
Base Width  – 2-3/4″
Height     – 1-3/4″

Not a falsie! Polished aluminum “Gets the Job Done.”
Approximately 2″ wide at top and 1 1/4 ” high. Complete with gaskets.


Offenhauser aluminum breather, highly polished, complete with gasket, bolts, and mounting instructions.

Offenhauser 4039GB – Breather Gasket and Baffle. Mounting hardware for breather not included with this item.


Offenhauser 5408F – Foam Breather Filter For Breathers 5408, 5409, 5410, and 6156. This product is sold individually.

Offenhauser 5408G Breather Gasket. For use with all Offenhauser Breathers except for the 3661 JR.

Offenhauser 5408T Breather Top. Fits all Offenhauser breathers with the exception of the JR breather. Polished. Available with the Offenhauser logo or without – please specify. Screws Included.



5″ High Rise Polished Aluminum Filtered Breather. Filtered, Two piece, 30 Degree angle, Vertical Breather. Great for engines with higher compression. Contains same quality parts as 5408, 5409, & 5410
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