Preheating Cartridge - 24VParts Number: 50420042A Preheating Cartridge 24V from Webasto is a key component designed to assist in the ignition process of diesel heater systems, particularly in cold weather conditions. This 24V preheating cartridge warms the combustion chamber, ensuring efficient and reliable ignition of the fuel. By preheating the fuel and air mixture, it improves the heater's performance, reduces wear on the system, and ensures a smoother startup, even in