OE 11348511622 — thermostat 03F121111A for Hyundai / Kia

Aftermarket thermostat 03f121111a comes from tooling houses that hold the original drawings or licensed equivalents. KingMay sources from vetted factories and inspects each batch; the manufacturer name is available on request where your market requires origin documentation.

A supersession happens when the maker revises a thermostat 03f121111a 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 11348511622 we list the current reference; ask our desk for written confirmation before a large order.

Incoming batches pass a dimensional check, a material look-up against the cooling system specification, and a visual inspection for finish defects. Critical dimensions are measured per carton and the photographs are archived against the order number.

Three checks: the code printed on your old part must read 11348511622; the number must fall inside the build-year range in the Applications table; and the connector, thread or bolt pattern must match the reference photo. Codes cast into the housing are the most reliable source.

For a short distance at reduced load, usually yes — but the risk compounds. A degraded thermostat 03f121111a transfers stress to neighbouring components, so a small repair can grow into a full cooling system rebuild. Book the replacement once the symptom is repeatable.

Build-year coverage is listed row by row in the Applications table above. Where several generations share one number, the newer rows usually carry a revised suffix — compare the last four characters before buying, since a suffix change often means a different connector or bracket.