Post by
ItzGenX »
https://forums.nicoclub.com/itzgenx-u1074.html
Mon Jan 06, 2003 4:29 pm
Yeah, that's basically what they are--vavle stem seals. They seal off the top of the valve stem so oil won't run down it. I am not sure if the seals for the USDM SR20DE valve seals are the same size. Buy just ONE, or take one of your old valve seals and bring it to the dealership to see if it matches with a 91' B13 SE-R.