So...we all know that OEM or genuine Toyota is typically the best
I am in the process of installing my TRD supercharger...and Its time i change my thermostat to a colder one before I refill my cooling system.
Toyota didnt make a 170 thermostat for our 3.4L trucks. Only a TRD 160 one, which I dont really want...many have gone to stant or motorad...well...Kuzeh is the OEM manufacturer, and they make one for the corollas/matrix in 170
Based on my research, it will fit...correct me if I am wrong?
this is what i found as the "OEM" thermostat - W0133-1629493-KUZ
Kuzeh(R) W0133-1629493-KUZ - Engine Coolant Thermostat
fits
Corolla 1998-1999, 2009-2013
Matrix 2009-2013
which I cross referenced with these part numbers - 90916-03129, 90916-03084, 90916-A3003
which fit 1MZFE, 2AZFE, 3MZFE, 1ZZFE; 1ZZFE; ZZW30, 2ARFE
Which...URD sells one for the 1MZFE and 5VZFE
170 Degree Performance Thermo for 5VZ-FE 3.4L and 1MZ-FE 3.0L V6 - Underdog Racing Development
so...by process of deduction...can I assume based on the Kuzeh listing that it fits the 1ZZFE, 2ZRFE in the Matrix and Corolla, and that the cross reference of the Toyota Part number fits the same vehicles, PLUS the 1MZFE, and based on URD, the 1MZFE and 5VZFE Thermostats are interchangeable so the 1MZFE fitting Kuzeh 170 thermostat will fit and work in the 5vzfe application? No more need for the aftermarket Stant/Motorad ones...we can go to the OE manufacturer for our 170 degree needs?
And it uses this seal
16325-62010 - Genuine Toyota GASKET, WATER INLET HOUSING
which fits all the thermostats