S&S, steel breather valve & spacer set. STD. - 36-47 B.T.(NU) 4005 Rubber washers eliminate troublesome stock

Rubber washers eliminate troublesome stock soft isolators

NPT threads are 'self sealing' since they are slightly tapered

without modifications

steel tubing available in black powder-coat or highly polished chrome

S&S, steel breather valve & spacer set. STD. - 36-47 B.T.(NU) 4005 Rubber washers eliminate troublesome stockWith 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