Product Overview
This product is a standard replacement part designed for stable fitment in its intended vehicle applications.
The thermostat controls coolant flow according to engine temperature.
It regulates circulation between the engine and radiator to support stable operating temperature.
Replacement is performed during scheduled cooling system service.
Vehicle & Application Scope
This thermostat applies to Toyota Corolla models equipped with 1.8L petrol engines.
The application corresponds to 1.8L engine configurations using a mechanically controlled coolant valve.
OE 90916-03144 is associated with specific 1.8L Corolla cooling layouts.
This thermostat is not interchangeable with units used on 1.6L, 2.0L, or hybrid systems.
Packaging & Ordering Information
The thermostat is supplied in protective individual packaging.
Packaging safeguards the valve body and sealing surfaces during handling and transport.
Orders may be consolidated with other engine cooling components in mixed shipments.
This format supports efficient aftermarket logistics.
Basic Quality & Supply Information
Production follows a standardized process aligned with OEM dimensional and temperature specifications.
Each unit undergoes routine inspection for valve operation consistency and housing integrity.
Specification control ensures compatibility with 1.8L cooling system layouts.
This part is supplied as a standard cooling system service replacement.
Related Sourcing Note
This part is often included in trial orders by importers evaluating new suppliers.
👉 View a sample validation part used for sourcing evaluation
Ordering FAQ
Is this part suitable for my market?
This thermostat follows OEM reference specifications for Corolla 1.8L cooling systems.
Can it be combined with other parts in one shipment?
Yes. It can be shipped together with other engine or cooling system components.
Do you support small trial quantities?
Trial quantities are available depending on order structure and consolidation.
