S&S Cycle Billet Head Breather Kit Anodized Blue M8BRAND NEW Part # 900 1186 S&S Cycle Billet Head Breather Kit Anodized Blue M8 6061 billet aluminum head breathers replace the OEM plastic parts Dual O ring for a better seal in the head Unique Labyrinth design to reduce oil pass through Reduces emissions by lowering the amount of oil being burned Increased durability compared to the stock head breathers Made in the USA For 24 FLHTK FLTRK FLHRXS, 17 23 FLHT FLHR FLHX FLTR (except 23 FLHXSE FLTRXSE), 17