A-B1690937-AI GASKET-BREATHER

One New Aftermarket Replacement Breather Gasket Fits Briggs and Stratton (B&S) Small Engines

This aftermarket replacement breather gasket seals the crankcase breather assembly to the engine block on Fits Briggs and Stratton small gasoline engines commonly used in lawn tractors, riding mowers, and zero-turn mowers. The breather gasket maintains proper crankcase pressure by sealing the breather assembly, helping prevent oil leaks and keeping the engine running cleanly. Over time the gasket can become brittle and crack, causing oil leaks or excessive exhaust smoke -- replace it during any breather or engine rebuild service.

Compatible Engines

Fits Briggs and Stratton (B&S) V-Twin and Single-Cylinder Engines: Used on a wide range of Fits Briggs and Stratton small gasoline engines including those found on Fits Briggs and Stratton 4025A7, 4035A7, 403677, 4045A7, 405577, 405777, 406777, 407677, 407777, 40F777, 40G777, 40H777, 40R777, 40S777, 441777, 445577, 445677, 445777, 445877, 445977, 446677, 446777, 44677A, 446877, 446977, 44H777, 44P777, 44Q777 engines. Also used on Fits Electrolux/AYP lawn tractor engines 7178C99, 7187A99, 8188A89, 8188B89, 8208A39, 8209A89, 8209A99, 8228A89, 8228B89, 8248A99, 9178B99, 9187A99, 9209A99. Always verify fitment against your engine model and type number before ordering.

Replaces Part Number(s):

690937, 273370, A-B1690937-AI

New aftermarket replacement part - not remanufactured, not used.