AISIN THM-011 thermostat for the 2008-2012 Nissan Pathfinder 5.6L and other vehicles is an OE-manufactured assembly that keeps coolant within the optimal temperature range. As an engine coolant thermostat, it opens and closes to regulate coolant flow through the engine.
- OE engineered and manufactured as an exact replacement with exact temperature: it starts to open at 82 °C (179.6 °F)
- OE manufactured for exact form, fit and function
- Maintains cooling system performance
- Includes a jiggle pin check valve
A thermostat that sticks can show up as overheating, a temperature gauge that stays low, or slow warm-up. A low coolant level can also throw the gauge off, so check the level with the engine cool before you replace the thermostat.
Fitment includes the 2007-2020 Mitsubishi Outlander 3.0L and the 2014-2019 Infiniti Q70 5.6L, plus many other vehicles, and each takes one. If your car isn't named here, look it up in the "Vehicles it fits" section.
Specifications
Fit and size
- Quantity per vehicle: 1
- Start to open temperature: 82 °C (179.6 °F)
- Sealing flange outside diameter: 64 mm
- Flange height: 46 mm
- Bypass flange diameter: 24 mm
Build and materials
- Design: Standard
- Material: brass and stainless steel
- Jiggle pin check valve: included
- Country of origin: Japan
In the box
One thermostat assembly with a gasket or seal.
Interchange: 143-0845 · 21200-1LA1A · 21200-AD201 · 302-180 · 21200-AD200 · 21200-AD21A · WV64MC-82
33878 · 1305A191 · MD174233 · MD194988 · MD997644 · 14128
This part cross-references / interchanges with the following part numbers:
143-0845, 33878, 21200-1LA1A, 21200-AD201, 1305A191, MD174233, MD194988, MD997644, 302-180, THM-011, 21200-AD200, 21200-AD21A, 14128, WV64MC-82
Frequently Asked Questions
Does the AISIN THM-011 thermostat fit a 2008-2012 Nissan Pathfinder 5.6L?
Yes, the AISIN THM-011 fits the 2008-2012 Nissan Pathfinder 5.6L and the 2007-2020 Mitsubishi Outlander 3.0L, one per vehicle. Other vehicles are listed in the "Vehicles it fits" section.
Does this thermostat come with a gasket?
Yes, the AISIN THM-011 includes a gasket or seal. The assembly also has a jiggle pin check valve.
At what temperature does this AISIN thermostat start to open?
This thermostat starts to open at 82 °C (179.6 °F).
What is this thermostat made of, and how big is the flange?
The thermostat is made of brass and stainless steel. The sealing flange is 64 mm in outside diameter, the flange height is 46 mm, and the bypass flange is 24 mm.
Does the AISIN THM-011 replace OE number 21200-AD200?
Yes, 21200-AD200 is one of the numbers the AISIN THM-011 replaces, along with 21200-1LA1A and MD174233.
