OE 18840-11051 — Plug ASSY Spark for Hyundai / Kia

Start from the code cast or printed on the part you are removing — that is the authoritative source. If it is illegible, use the Applications table on the closest body & interior reference and narrow by build year. Send photos and we will cross-check the number for you.

Three checks: the code printed on your old part must read 18840-11051; 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.

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.

Every shipment of 18840-11051 leaves with a packing list, photo documentation and a QC report. Warranty terms are agreed per contract and reference that inspection record; claims are settled in writing against the documentation.

Bulk pricing is tiered: 10 pieces, 50 pieces and full-carton quantities each carry a different unit rate. Piece price also moves with packing format and whether your own brand is printed on the carton, so tell us the landed quantity you are planning.

For a short distance at reduced load, usually yes — but the risk compounds. A degraded plug assy spark transfers stress to neighbouring components, so a small repair can grow into a full body & interior rebuild. Book the replacement once the symptom is repeatable.