Injector Caps Part Number

[1972_911T]

Does any one have the pArt numbers for the little cap on the top of fuel injectors. I orederd the part number listed on PET but the cap is slightly different to whats on originally and the little plastic washer behind the seal is completly different and doesnt fit. When I re-checked the part number on pelican I noticed this statment " 911 (6 req, use O-rings only) (1984-89)" Stating to only use the o rings from the kit so what do you do about the washer and the cap is there a seperate part number?

Steve