路虎捷豹点火线圈高压包2W4Z-12029-A，OEM 1W4U12A366AA，精准点火提升动力

If your Land Rover or Jaguar experiences idle vibration, sluggish acceleration, abnormal fuel consumption, or engine malfunction indicator light with misfire, this usually indicates ignition coil high-voltage pack aging or internal breakdown, unable to stably provide ignition energy. This part converts low-voltage to high-voltage to precisely ignite the air-fuel mixture, ensuring smooth engine operation and power output. This product fits OEM numbers: 2W4Z12029AC, 1W4U12A366AA, C2S42751, XR814052, for 6-cylinder Land Rover/Jaguar models. When installing, be sure to disconnect the negative battery terminal, keep high-voltage wire order correct, and consider replacing spark plugs simultaneously for optimal ignition efficiency.