Cummins 4BT Vs. 6BT Engines: What’s The Difference?

If you’re looking at the Cummins 4BT and 6BT engines for a potential swap, there are a few things you need to know. Right off the bat, both of these are formidable diesel engines, so no matter which one you opt for, you’re getting something powerful and reliable — and they paved the way for one of the most reliable diesel engines ever made in the 6.7L Cummins Turbo Diesel. On the surface, both the 4BT and 6BT share

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