Mishimoto MMTS-240-89KA Nissan Sentra Racing Thermostat w/ 2 Liter Engine, 1991-1994 Fits 1989-1998 Nissan 240SX KA and SR20 Activates at a lower temperature than stock Engine Codes: KA24E, KA24DE, SR20DE, SR20DET Mishimoto Lifetime Warranty