Please Note: Glow plug voltage (ignition voltage) is 9V, suitable for 12V Car heaters Glow plug voltage (ignition voltage) is 18V, suitable for 24V Car heaters Glow PlugSpecification: - Material:Silicon Nitride -Suitable for car voltage:12V/ 24V - Diameter: 4.5mm(approx.) - OEM For Glow Plug : 252106011000 12VGlow Plug Working Voltage:8V Current:8-9A NO:08-45-1 Wattage:64-72W 24VGlow Plug Working Voltage:18V Current: 4.8-5.5A NO:18-45 Wattage:85-95W Feature: 1. Long service life 2. Compact, lightweight and energy efficient 3. Fast heating and high temperature resistance 4. High watt density, excellent thermal efficiency 5. Excellent chemical resistance 6. No electrical noise 7. Physical manufacture, safety and environmental protection, no radiation to human body Fitment: For Eberspacher Hydronic D4wsc D5wsc Proce: This Product Is Based On Silicon Nitride Ceramics, With Tungsten Wire As The Heat Source. The Tungsten Wire Is Buried In The Silicon Nitride-matrix, Formed Into A Whole By Hot Preing Sintering Proce, And Then Proceed By Grinding And Soldering Leads. Ignition Components. Application: Suitable For Parking Heaters. In Cold Regions, Heating Elements And Spark Sensors Used To Ignite Automotive Auxiliary Heating Devices Can Use Silicon Nitride Heating Elements To Quickly Evaporate, Ignite And Burn Fuel. Therefore, After Engine Starting And Idle Speed Shortly After Stopping The Stop, The Temperature Inside The Vehicle Will Rise Rapidly. Note: The two types of wrenches are different in appearance and have the same function. If you need to specify a wrench, please contact customer service, otherwise, it will be shipped randomly. Hope you understand. Thank you. Description: The working voltage of the glow plug is 8V, suitable for 12V parking heater, and the working voltage of the glow plug is 18V, suitable for 24V parking heater.