Parts for your 2013 Toyota Land cruiser-Thermostat

2013 Toyota Land Cruiser Thermostat — What It Does and How to Look After It

Technical sources confirm the 2013 Toyota Land Cruiser (200 Series, including URJ200/UZJ200/VDJ200 variants with 4.6L/5.7L petrol V8 and 4.5L 1VD‑FTV diesel V8) is fitted with an engine coolant thermostat. This is documented in Toyota’s Land Cruiser 200 Series Repair Manual cooling system sections (“Cooling: Thermostat” for 3UR‑FE/1UR‑FE and 1VD‑FTV engines) and the Toyota Electronic Parts Catalogue for LC200, which lists a thermostat assembly and O‑ring for these engines. Typical opening temperature specified by Toyota for these engines is around 82°C.

On a 2013 Land Cruiser, the thermostat is the small but crucial valve that controls coolant flow to keep the engine sitting in its sweet spot. It helps the V8 warm up quickly, then holds operating temperature steady under load, whether it’s towing up the Kaimais or crawling a rutted track in the High Country. Correct temperature means better fuel economy, stronger cabin heat on cold mornings, stable emissions, and healthy lubrication — all of which the ECU expects when it’s fuelling and managing timing or boost.

Because cooling systems work as a team, looking after the thermostat goes hand‑in‑hand with coolant and hose maintenance. Many owners choose to replace the thermostat proactively when changing a water pump or radiator, after an overheating event, or around high kilometre marks. During service, it’s wise to check for tell‑tales like slow warm‑up, temperature gauge wandering under load, a heater that stays cool, or pressure spikes pushing coolant to the overflow. Any of these can point to a thermostat that’s sticking open or closed.

When replacement is on the cards, a genuine or high‑quality aftermarket thermostat matched to the correct opening temperature is the go. Always install a new O‑ring or gasket, clean the housing faces, and refill with Toyota Super Long Life Coolant (pink) mixed to spec. Bleeding air properly (heater on hot, steady revs, top up as needed) avoids hot spots and false overheat warnings. After refit, a road test under light and then moderate load helps confirm stable temps and good heater performance.

• Recommended practice: inspect the thermostat whenever coolant is renewed, or if there’s any cooling‑system diagnosis underway.
• Consider replacement at 150,000–200,000 km, sooner if there’s any hint of sticking or after severe overheating.
• Pair thermostat work with checks of radiator condition, fan clutch/viscous hub (if equipped), and hose integrity.

Popular questions

Where is the thermostat on a 2013 Land Cruiser?
It sits in the water inlet housing on the front of the engine, inline with the lower radiator hose. On the petrol V8s it’s mounted at the front timing cover area. On the 1VD‑FTV diesel V8 it’s at the front of the right bank, where the lower hose meets the housing.

What temperature should the thermostat open?
For 2013 Land Cruiser engines, the thermostat typically begins opening at about 82°C and is fully open by the low‑to‑mid 90s°C. That lets the ECU hold a stable operating temperature across Aussie and Kiwi climates, loaded or unloaded.

Is it safe to drive with a stuck thermostat?
If stuck open, the engine may run too cool, causing poor fuel economy, weak heater output, and extra wear. If stuck closed, it can overheat quickly and risk head gasket or turbo damage. Best bet is to park it and sort the fault rather than push on.