Comes with 1/2-13 threaded bolts and accepts stock 3/8" hose. The simple breather solution for models with head vents. Used in combination with aftermarket air cleaner assemblies.
Fits: > 93-99(NU)B.T.(excl. Twin Cam); 91-21 XL
HD 36-47
All steel construction - superior dimensional stability, abrasion
Welded-in screen
Higher flow than stock
Elongated breather pocket scavenge hole for increased suction
S&S, STEEL BREATHER VALVE & SPACER SET. STD.
With steel breather valve spacer set for correct end play. High quality steel breather valve for use as stock or high performance replacement. Note: S&S breather valves come with elongated breather holes to increase the duration of the vacuum, allowing more oil to be drawn from the cylinder heads. This has no disadvantage in any model year, either stock or Big Inch motor. Note: A .030" oversize breather is available to save worn or damaged crankcases as 531237. A JIMS breather hole reamer (MCS 978343) will ream the damaged hole to +.030" so a +.030" breather can be used.
Fits: > 48-E77 B.T.
Manufactured from aerospace quality steel and CNC machined to the JIMS standard. Note: JIMS breathers can be used with L79-99 style steel breather valve thrust washers.
Fits: > L77-99 B.T. (excl. Twin Cam) (NU)