This BorgWarner (BERU) glow plug, part code GN1004, is designed to ensure efficient and reliable engine starting, especially in colder conditions. It plays a crucial role in the combustion process by preheating the air in the cylinder, facilitating easier ignition. Manufactured with high-quality materials, this glow plug offers excellent durability and long-lasting performance, contributing to smooth engine idling and reduced emissions. It is a direct replacement for the original part, ensuring a perfect fit and optimal functionality for your vehicle.