Car Battery
HK$1,560
選擇規格
Oxygen Sensor
HK$900
O2 / lambda sensor for accurate air-fuel feedback and emissions control.
改價格：後台 → 商品 → 編輯此商品。
Oxygen (lambda) sensors measure exhaust oxygen so the ECU can trim fuel mixture. A failing sensor can trigger check-engine lights, rough idle, and higher fuel use. Confirm upstream vs downstream location and connector style. Use anti-seize sparingly on threads only—never on the sensing tip.
