金杯/长城4Y发动机高压点火线 491Q-ME-3707030 分火线

If your vehicle shows idle jitter, weak acceleration, elevated fuel consumption, or cold-start difficulty with occasional surges, it is usually due to aging high-voltage ignition wires or resistance exceeding spec; replacement is required. These wires transfer high voltage from the coil to the spark plug to ensure complete combustion and consistent power. OEM 491Q-ME-3707030, also compatible with 0K reciprocal numbers for various compatible cars including Jinbei Minibus (Guru), Gree, Great Wall Sourcing models with 4Y engines. During installation, connect by proper cylinder order; ensure harness locks are fully fastened, avoid contact with high-temperature components, and check the spark plug sealing ring for integrity to prevent water ingress.