Jeep汽车点火线圈55242406 0221504039，OEM 91467761，稳定输出

Jeep Grand Cherokee and Commander's 5-cylinder engines, fits KLP brand 55242406 ignition coil; compatible with OEM numbers 91467761 and 0221504039. Core function: convert low voltage to high voltage to ignite spark plugs and promote complete combustion. After installation, common issues like rough idle, weak acceleration, and high fuel consumption are resolved; cold-start improvements are notable. If vehicle experiences roughness or engine management light illuminates during driving, replacement restores stable output.