Parts for your 2022 Toyota Land cruiser-Thermostat

2022 Toyota Land Cruiser Thermostat

Yes, the 2022 Toyota Land Cruiser (J300 Series) absolutely uses a thermostat. Toyota’s Repair Manual for the J300 (Cooling System section) and the Toyota Electronic Parts Catalogue list a wax‑pellet thermostat in the water inlet housing for both the 3.5‑litre twin‑turbo petrol (V35A‑FTS) and the 3.3‑litre twin‑turbo diesel (F33A‑FTV). So it’s a relevant, fitted component on this model.

The thermostat’s job is to get the engine up to its ideal operating temperature quickly, then keep it there. On cold start it stays closed, letting the engine warm up faster for better fuel economy and lower emissions. Once the coolant reaches its target temperature, the thermostat opens to allow flow through the radiator, holding temps steady even under load, towing or hot Aussie and Kiwi summers. That stable temperature also keeps cabin heat and turbo performance nice and consistent.

While the thermostat isn’t a frequent‑change item, it pays to keep an eye on cooling system health as part of regular servicing. A sticky or failed thermostat can cause slow warm‑up, underheating, overheating, poor heater performance, or fluctuating temps on the gauge.

• Common red flags: slow to warm up, temp gauge wandering, heater blowing cool at speed, radiator hoses staying cold when they shouldn’t, or fans running more than usual.
• Good practice: inspect at coolant change intervals, check for leaks at the water inlet, and replace the O‑ring/gasket if disturbed.

If replacement is needed, go with a genuine or quality OE‑spec thermostat and new seal. Use Toyota Super Long Life Coolant (pink), refill to the correct mix, and bleed air properly—these engines have tight thermal control, so any air pockets can cause dramas.

1. Let the engine cool fully and disconnect the battery negative.
2. Drain coolant into a clean container, remove intake ducting as needed for access under the bonnet, then unbolt the water inlet.
3. Swap the thermostat and O‑ring, clean the mating surface, and torque fasteners to spec (check the workshop manual).
4. Refill with the correct coolant, bleed the system, verify fan operation, and road test under load.

There’s no fixed kilometre interval for thermostat replacement on the J300, but many workshops will assess it at the first coolant service (often around 160,000 km or 10 years, then periodic thereafter) or when doing a water pump, hoses, or if any temperature irregularities show up. Done right, it’s an easy win for reliability—especially if the vehicle tows, tours, or sees big temperature swings.

Popular questions about the 2022 Toyota Land Cruiser thermostat

Does the 2022 Land Cruiser have a traditional thermostat or something electronic?
It uses a conventional wax‑pellet thermostat in the water inlet housing. Engine management and electric fans help control temperature, but the thermostat is the primary mechanical valve managing coolant flow. Some variants may also use additional thermal control devices (like oil cooler valves), but the main engine thermostat is a standard unit.

When should the thermostat be replaced?
There’s no fixed schedule—replace it if there are symptoms (overheating, underheating, slow warm‑up, heater issues), evidence of leakage at the housing, or during related cooling system work (water pump, hoses). Many technicians also recommend evaluating it at the first coolant change and any time the system’s been contaminated or overheated.

What temperature does it open?
Toyota specifies a nominal opening temperature in the 80–90 °C band for J300 thermostats. Exact figures vary by engine and build, so it’s best to confirm in the service manual or parts data for the specific VIN. The key is smooth opening and proper temperature control under real‑world loads.