Chunfeng Dayang Motorcycle Oxygen Sensor 0258020001 Universal Replacement

The Spring Wind and Dayun brands’ oxygen sensor 0258020001 uses a high-temperature ceramic probe and corrosion-resistant stainless steel housing; durability is comparable to the original. It monitors oxygen in the exhaust and feeds back to the ECU to adjust the air-fuel ratio for combustion efficiency and emissions compliance. Replacement difficulty is medium; remove the old sensor and tighten the new one, avoid thread cross-threading, and use a dedicated socket; suitable for multiple generic automotive models.