OE 39210-3F020 — Sensor ASSY Oxygen Frt LH for Hyundai

Aftermarket sensor assy oxygen frt lh 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.

Four variables explain most of the spread: material grade, whether the goods are new production or clearance stock, packing format, and whether the quote is ex-works or landed. Ask for the material certificate alongside the price — that is what makes a comparison like-for-like.

Stock references leave Guangzhou within 7 working days. If 39210-3F020 needs a production run, allow 25-35 days depending on quantity and surface treatment. The schedule is confirmed in writing when the order is placed.

Three checks: the code printed on your old part must read 39210-3F020; 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 sensor assy oxygen frt lh transfers stress to neighbouring components, so a small repair can grow into a full electrical & sensors rebuild. Book the replacement once the symptom is repeatable.

The Related OE References table above lists the alternates we see most often in trade inquiries. Cross-references work because the engineering envelope is shared across the electrical & sensors family — always confirm dimensions and connector layout before you swap.