The GKTECH blank radiator cap (non presurised) is a direct fit for all Nissans. These are commonly used when installing a swirl pot setup.NOTE: These MUST be used in conjunction with a pressurised cap somewhere in your system. You can not use these standalone as a direct replacement for the OEM cap. NOTE: Do NOT remove your radiator cap while your car is hot. ["NISSAN C33 LAUREL","NISSAN C34 LAUREL","NISSAN C35 LAUREL","NISSAN CEFIRO A31","NISSAN R32 SKYLINE GTR","NISSAN R32 SKYLINE GTS-T","NISSAN R33 SKYLINE GTR","NISSAN R33 SKYLINE GTS-T","NISSAN R34 SKYLINE GT-T","NISSAN R34 SKYLINE GTR","NISSAN S13 CA18 240SX HATCH","NISSAN S13 CA18 240SX/SILVIA","NISSAN S13 SR20 240SX HATCH","NISSAN S13 SR20 240SX/SILVIA","NISSAN S14 240SX/SILVIA","NISSAN S15 SILVIA","INFINITI G35 SKYLINE","INFINITI G37 SKYLINE","NISSAN Z32 300ZX","NISSAN Z33 350Z","NISSAN Z34 370Z"]