The flagship of the fleet. The 4158 is the model the 16501 replica was modeled after. Many different models were built during its history ending in 1940. The feedwater pump was someitme mpounted on the other sdie of the base, the most rare versions have the newest 3394 dynamo attached, and featured up to a 9 cm dia. boiler (4158/94/11). Marklin did make larger engines than the 4158, but this models is the most popular and most common. This is one of the machines that demonstrate the epitome of the pre-war era.
