Product Overview

The coolant thermostat, OEM number 94810603404, regulates the flow of coolant between the engine and the radiator, controlling how quickly the engine reaches and maintains its normal operating temperature. It opens and closes with every heat cycle, so its wax element and seals wear over time, which makes it a regular replacement item in the engine cooling category.

A stuck or failing thermostat can cause the engine to run too hot or too cold, so a properly functioning replacement matters. GSK Auto manufactures this thermostat to OEM specification at our Ningbo, China facility, with every unit tested before packing. We supply at wholesale volume with low MOQ and support private label packaging, with our team available to confirm the OEM number match before shipping.

Replacement OEM Numbers

(Note: We were unable to confirm the exact vehicle application for OEM 94810603404 from available records. Please confirm the correct part number and fitment with your supplier or parts catalog before publishing this listing.)

What Is a Coolant Thermostat?

Function: The thermostat controls coolant flow between the engine and the radiator, blocking flow to the radiator when the engine is cold and opening to allow circulation once the engine reaches its target operating temperature.

Working Principle: A wax-filled element inside the thermostat expands as coolant temperature rises. Once the coolant reaches the thermostat's rated opening temperature, the wax expansion pushes a valve open, allowing coolant to flow to the radiator. As the coolant cools, the wax contracts and the valve closes again.

Importance: The thermostat keeps the engine operating within its intended temperature range, which affects fuel efficiency, emissions, and long-term engine wear. A thermostat stuck open or closed can cause overheating or an engine that never reaches proper operating temperature.

Common Failures & Signs: Engine overheating, especially at highway speed or under load. Engine running cooler than normal, with reduced heater output. Temperature gauge fluctuating unpredictably. Coolant leak from the thermostat housing. Check engine light related to coolant temperature sensor readings.

Key Features

OEM-standard fitment - matches factory housing shape, seal, and mounting for the OEM 94810603404 application.

Precise opening temperature - built to open and close at the correct calibrated temperature.

Durable housing - built to resist cracking and leaks under heat cycling.

Direct replacement - installs in place of the original thermostat, matched by OEM number.

Tested before shipment - every unit checked for proper function before packing.

Benefits

Importers - covers coolant thermostat demand from a single sourcing partner.

Wholesalers - a steady replacement item in the engine cooling category.

Repair Shops - tested units reduce comeback risk on an overheating repair.

Distributors - private label packaging available for building a branded catalog.

Packaging & Shipping

Standard export cartons. Customized packaging available for distributor branding. OEM-style and private label printing on request. Container loading handled directly, with mixed-SKU consolidation for smaller orders. Worldwide shipping to Europe, North America, South America, the Middle East, Africa, and Southeast Asia.

Why Choose GSK Auto

GSK Auto manufactures factory-direct, keeping pricing tied to production cost. This thermostat is built to OEM specification and tested before packing. We support low MOQ, private label packaging, and worldwide shipping, with our technical team available to confirm the OEM number match before you order.

Call to Action

Sourcing coolant thermostats by OEM number? Contact GSK Auto for a wholesale quote, catalog, or OEM/private label cooperation.