别克英朗新君威 ZFR6BP-G 1748 双铂金火花塞 GM55564763

When your vehicle experiences idle jitter, sluggish acceleration, obvious fuel consumption rise, or cold-start difficulty, this usually indicates the spark plug electrodes are severely burnt or carbonized and aged, requiring replacement. This dual-platinum spark plug precisely ignites the air-fuel mixture to ensure smooth engine power output and complete combustion. Compatible with Buick Excelle GT/Regal and other General Motors post-2000 models; OEM number 55564763. Install with a torque wrench to specified torque to avoid thread damage from over-tightening or leaks from under-tightening, and check whether the ignition coil boot has aged.