The 4 pcs heater glow plugs for Chevrolet Aveo 1.3 D, Opel Astra Combo Meriva 1.3 CDTI, and other vehicles with 55210051, 55564219, and 95522517 identifiers, or as known as AUTORCE, are the perfect solution for keeping your engine warm in cold conditions. These glow plugs are designed to improve the performance of fuel-efficient direct injection engines, ensuring optimal engine startability, timing, and fuel efficiency. Made from high-quality materials, they provide reliable service and are easy to install, making them a convenient and cost-effective upgrade for your vehicle. When paired with our heater core kit (not included), these glow plugs can help significantly increase your vehicle's comfort and safety during winter months. Experience the difference in warmth and engine performance with these 4 pcs heater glow plugs and trust the AUTORCE brand to deliver high-quality products that meet your vehicle's needs.