Features 1. Fitment: This glow plug repair tool is designed as a replacement for Eberspacher D2, D4, and D4S heaters. Please verify your model before purchasing. 2. Function: Provides preheating and heating for the engine and cabin in cold winter conditions, helping to eliminate wear caused by cold starts. 3. Fine Workmanship: Offers excellent thermal performance, fast heating rate, reliable low-temperature startup, and rapid temperature rise. 4. Material: Constructed from high-quality copper and rubber materials for durability and wear resistance, effectively extending the product's service life. 5. High Reliability: Manufactured to standard specifications with strict factory quality control to ensure safe operation. Specification Item Type: Parking Heater Glow Plug Material: Copper, Rubber Fitment: Compatible with Eberspacher D2, D4, D4S, and other air heaters Package List 1 x Ignition Glow Plug