By Featured Writer: Mike McGlothlin Despite how durable the mechanical fuel injectors are in the ’89-’02 5.9L Cummins engines, they’re still a wear item. That means that even though this ultra-simple, single-shot injectors are known to last 400,000 miles or more, eventually they’ll need to be serviced. Whether the owner notices a change in performance,…
4BT Engine History and Background The Cummins 4BT has mostly been utilized in applications such as box trucks, small industrial vehicles and agricultural equipment. The 4BT is pretty much just a downsized version of the famous 5.9L 12V Cummins as these engines share almost all of their parts such as pistons, connecting rods, injectors and…
Early 5.9L Engine History Weighing in at 1,100 pounds this heavyweight was brought to market under the hood of the Dodge Ram in 1989. It was originally designed to power agricultural vehicles 8 years earlier and in fact was the brainchild of a Case/Cummins joint venture. The engine marketed as the 6B, 6BT, and 6BTAA…
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