S&S, steel breather valve. STD

High quality steel breather valve for use as an original replacement or for high performance.
Note: S&S breathers come with elongated breather holes to increase vacuum duration, allowing more oil to be drawn out of the cylinder heads. This has no downside on any model year, whether original or Big Inch engine.
Note: Steel breather valves require steel breather valve spacers. Plastic ones require plastic spacers. Do not mix steel and plastic parts.
Note: A .030" oversize breather valve is available to salvage worn or damaged crankcases, reference 970603. A JIMS breather hole reamer (MCS 978343) will ream the damaged hole to +.030" so a +.030" breather valve can be used.


Specifications


Brand
S&S


Application
36-47 Big Twin (NU)


Material
Steel


Packaging weight
0.158 kg


HS Code
84099100


Motorcycle family
BIG TWIN


Original name
S&S, steel breather valve. STD