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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
When turn signal is activated LEDs will flash together with turn signals
p/n 4013979 (obsolete) replaced by 4016021
O-ring type
Sold to dealer in packs of five
Valve guides are installed
S&S, steel breather valve & spacer set. +.030" OD - L77-99 B.T. (EXCL TC) 905185 When turn signal is activatedWith steel breather valve spacer set for correct end play. +. 030" oversize steel breather valve. Used to save worn or damaged crankcases. Okay for stock or high performance replacement. Note: JIMS has a +. 030" breather hole reamer tool which is available as 978343. 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
