OE 25623-3C661 — Housing Thermostat for Hyundai

A supersession happens when the maker revises a housing thermostat and issues a new tail number. The revision normally changes a small physical detail rather than the fit. Where we know a supersession chain for 25623-3C661 we list the current reference; ask our desk for written confirmation before a large order.

Report it with the order number and packing-list line plus photographs. Because every carton is photographed before loading, we can trace the batch immediately and settle the claim against the inspection record instead of arguing from memory.

KingMay supplies OEM-grade aftermarket parts built to the 25623-3C661 factory specification: material grade, dimensional tolerance and surface finish follow the original tooling. They are not dealer-boxed genuine parts, and we quote them that way so there is no ambiguity at customs.

Export packing is a neutral carton with inner protection; custom labels, barcodes and box specifications are available for volume orders. Shipments move FOB Guangzhou or Shenzhen, with CIF and DDP terms negotiable.

OE 25623-3C661 is the factory reference for this housing thermostat on selected Hyundai models. The Applications table on this page lists the confirmed rows — check trim level and build year against your own fleet before ordering, because one reference can cover several body variants.

Treat it as a wear item: inspect every 20,000-30,000 km and replace at the first sign of leakage, noise or performance loss. Real service life swings widely with climate, road surface and duty cycle, so mileage on its own is a weak indicator.