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Jmhu228 12-14-2012 10:38 AM

Cummins 4bt Engine Swap
Jeep Diesel Conversion - 3.9L Cummins 4BT Turbo Diesel in 2008 Jeep Sahara - YouTube

Anybody done anything like this? I have interned at Cummins the past two summers and drive a TJ and think this would probably be the coolest thing ever. Obviously I would prefer to do the swap myself. Anyone done the swap personally or done something similar? I'd love to hear your input.:thumb:

derf 12-14-2012 12:13 PM

I've been thinking about doing a 4BT swap in my J10. The 6BT is just a little too long to do it without major surgery. I figure I could build up a 4BT with a good intercooled turbo to make enough torque to move the truck around with my CJ on a trailer behind it. Sure it wouldn't win in a race with a modern diesel truck but I bet it could hold its own heading out I-70 to Moab.

lynn 12-14-2012 12:50 PM

HubJeep put one in his YJ7... good write up, excellent fab work:

4BT in Jeep YJ-7 NV4500, Atlas II..

youngjeeper11 01-04-2013 06:20 AM

I did it to my YJ! Best engine swap I have ever done. I can even help you out with the engine mounts if you decide to do it!

Here is my ongoing build

H1Recovery 02-14-2013 08:11 AM

Jeep should start offering this. All the kits are so over priced

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