This is the o-ring kit that has the right size o-rings for the oil filter cap stem.Dorman 799-450 I bought from Autozone. I have 4 other o-ring kits both metric and sae but none have the size that fits as well as the Dorman kit.



The red wire nuts marks the 2 that are the right size.

__________________
85 300D turbo pristine w 157k when purchased 167,870 July 2025
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked