Gates Engine Coolant Thermostat P/N:34245
Gates 34711 thermostat for the 2013-2018 Lexus GS450h V6 3.5L and other vehicles regulates engine coolant temperature through an integrated housing.
When an engine coolant thermostat sticks open or closed, the engine can warm up slowly, run cooler than normal or overheat. A weak water pump, low coolant, a leaking hose or a faulty coolant temperature sensor can be behind these signs too, so find the cause before buying a replacement.
Vehicles this thermostat fits include the 2013-2018 Lexus GS450h V6 3.5L, the 2016-2018 Lexus IS300 V6 3.5L and the 2006-2018 Lexus IS350 V6 3.5L. It meets or exceeds OE standards for fit, form and performance. If your car is not named here, look up its year, model and engine in the "Vehicles it fits" section.
Fit and size
Build and materials
One integrated housing thermostat unit with a jiggle pin check valve. Each vehicle takes one.
Interchange: 660-180 · HT180-066
66080 · 86112 · 49408 · 1603131020
This part cross-references / interchanges with the following part numbers:
Is this the right thermostat for a 2016-2018 Lexus IS300 V6 3.5L?
Yes, Gates 34711 fits the 2016-2018 Lexus IS300 V6 3.5L; for other Lexus models, look up your year and engine in the "Vehicles it fits" section.
Does the Gates 34711 thermostat come with its own seal and housing?
Yes. Gates 34711 is one integrated unit with the thermostat, housing, insert and seal, plus a jiggle pin check valve.
At what temperature does this thermostat start to open?
This thermostat starts to open at 180°F (82°C).
How can I tell if my thermostat is going bad?
A temperature gauge that reads high or low, slow warm-up or overheating can be signs of a thermostat problem, and a shop can test it.
What size is the outlet on this thermostat housing?
The outlet measures 1.31 in inside diameter and 1.485 in outside diameter, and the housing has 3 bolt holes.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.