BYD F3/4G18 Ignition Coil 476Q-4D-3705800 Direct Replacement Upgrade

For BYD F3 (2005–2015) and 4G18 engine models (1.6L), you can directly replace the original ignition coil, compatible with 476Q-4D series engines; improves ignition efficiency and fuel economy. OEM number 476Q-4D-3705800; cross-check original part numbers to ensure compatibility. Replacement difficulty relatively low; use a 10mm socket to remove screws, clean the installation seat, apply insulating silicone grease to prevent high-voltage leakage. For B2B buyers, this upgrade part uses OEM-fit design with no wiring harness modification; bulk stock to meet BYD F3 maintenance demand and reduce aftersales complaints.