Is the OM617 a good engine?
The First 5-Cylinder Diesel Engine: OM617 (1974-1991) The OM617 was praised for its bulletproof reliability, often exceeding 500,000 miles with routine maintenance. Mercedes OM617 This engine is a straight 5 diesel, as you may already know, it is considered one of the most reliable engines ever made. It was common for one of these to reach over 1,000,000 miles without being rebuilt. As its regarded as both powerful and reliable, you can see why it’s a good choice for off-roading.