Press in for Nissan Valve Covers with non-threaded hole
Press in breather adapter to suit Nissan RB20, RB25, RB26, CA18, and SR20 valve covers to replace the standard breather adapter. Also fits other models.
RB20, RB25, CA18, & SR20 - 15.9mm (5/8") Knurl diameter
RB26 - 22mm (7/8") Knurl diameter
