Core Functions

• Voltage Conversion: Converts the vehicle’s 12V low-voltage battery current into 20,000–40,000V high-voltage current—essential for creating an electric spark at the spark plug that ignites the air-fuel mixture in the combustion chamber. This directly enables engine startup and continuous, smooth operation.
• Engine Performance Stability: Ensures consistent voltage delivery to the spark plugs, preventing weak sparks or misfires. A functional ignition coil maintains optimal combustion efficiency, which translates to stable engine power output, reduced rough idling, and lower fuel consumption—avoiding performance issues like hesitation during acceleration.
• Emissions Control & Durability: By enabling complete combustion of the air-fuel mixture, it reduces unburned fuel emissions (e.g., hydrocarbons) that contribute to air pollution. Additionally, its durable construction resists wear from engine vibrations and high temperatures, extending the service life of both the ignition coil and associated components (e.g., spark plugs, ECU).

 Compatible Vehicles

This Ignition Coil (OE: 31437796) is compatible with Auto Parts XC40 and EX40 (2025–onward) models. Below is a consolidated list of applicable models and year ranges (covering all repeated entries):

Notes: “(25–)” denotes EX40 models launched from 2025 onward; for 100% fitment accuracy—including confirming compatibility with specific engine variants (e.g., 1.5L/2.0L gasoline engines) or distinguishing between mild hybrid/traditional fuel XC40 trims—verify with your vehicle’s VIN (Vehicle Identification Number) or consult Auto Parts’s official service manual, which accounts for potential minor variations in ignition system configurations across different model years.

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