25500-2E000 Engine Coolant Thermostat for Hyundai

25500-2E000 documents a sealed disc-style thermostat used across several Hyundai and related platform cooling-system references. AutoParts tracks this product as TH260727-002 for quotation, sample review and order traceability.

The source information covers Hyundai Elantra, Tucson, ix35 and Sonata YF source applications, with related Kia platform references. Since the OE reference may span several models or production changes, the Model filter stays blank and fitment approval should use vehicle-specific evidence.

Product Technical Specifications

Product type: Engine Coolant Thermostat

Primary OE reference: 25500-2E000

Internal item code: TH260727-002

Vehicle brand: HYUNDAI

Model filter: Intentionally left blank; verify by VIN and engine data

Cross-reference numbers: 25500-2E000

Configuration: disc-valve coolant thermostat with integrated rubber sealing ring

Verification method: OE catalogue, VIN, engine code and removed-part comparison

Coolant Routing Across Hyundai Engine Platforms

The thermostat remains closed during early warm-up and progressively opens as coolant heats the wax actuator. This controlled transition directs heat toward the radiator only when the engine requires additional cooling.

Because the source covers multiple platforms, the Model filter is intentionally blank. The OE catalogue and engine code remain more reliable than selecting one vehicle name.

Seal, Disc and Calibration Comparison

Verify the complete OE number against VIN, engine family and build date. Compare the molded seal, valve-disc diameter and overall height with the removed thermostat.

Review opening-temperature markings and frame-tab locations. Interchange should not be approved solely because the thermostat fits inside the housing.

Bleeding and Post-Installation Monitoring

Clean the thermostat seat and inspect the housing for warpage or corrosion. Install the seal without twisting and position any bleed valve as required by workshop data.

After refilling, run the heater circuit and release trapped air. Observe hose temperature changes, cooling-fan operation and coolant level through a full heat cycle.

Wholesale Supply and Sample Approval

Use 25500-2E000 as the principal sourcing reference and TH260727-002 as the internal item code. Include required quantity, destination, carton marking and labelling instructions in the enquiry.

For technical approval, buyers may send VIN details, engine information, temperature specification, measurements and images of the removed thermostat. Mixed cooling-system orders can be reviewed before shipment.

Frequently Asked Questions

Why is the Model field blank for 25500-2E000?

The source lists several Hyundai and related Kia applications, so VIN and engine-based confirmation is safer than one model filter.

What physical features should be compared?

Check the rubber seal, valve-disc diameter, spring height, frame tabs, bleed feature and marked opening temperature.

Can a thermostat remain partly open?

Yes. Deposits, wax-element damage or mechanical distortion can prevent full closure and cause prolonged warm-up or unstable temperature.

What else should be checked during replacement?

Inspect coolant quality, housing condition, radiator flow, temperature sensors and any air trapped in the system.

How can distributors order this Hyundai thermostat?

Quote 25500-2E000 and TH260727-002 with quantity, destination, label requirements and sample-approval instructions.

Request a 25500-2E000 Thermostat Quote

Contact AutoParts with OE 25500-2E000, item code TH260727-002, quantity and delivery destination. Confirm compatibility before production ordering or workshop installation.

Application reference: Hyundai Elantra, Tucson, ix35 and Sonata YF source applications, with related Kia platform references; verify the exact vehicle through VIN, engine data and removed-part comparison.

Inspection focus: seal diameter, valve disc, spring stack, frame tabs, bleed feature and temperature calibration mark

Supply note: Quote TH260727-002 with quantity, destination and packing requirements; sample approval is available for B2B orders.