海马丘比特 骑士7 M8 1.3L 点火线圈 479Q18100 高压包 稳定可靠

This ignition coil directly replaces OEM 479Q18100, also compatible with 474Z18100, HD0018100M1 and KRK: TT14; broad compatibility. Core function is to convert low voltage to high voltage to drive spark plug ignition and ensure smooth engine operation. Suitable for Haima Chibit, Knight 7, M8 1.3L engines; 4-cylinder heads compatible. After installation, it resolves weak acceleration, idle jitter, and starting difficulties; fuel economy also improves. If cold-start is hard, engine surges when driving, or check engine light is on, ignition coil aging is likely; replace early for peace of mind.