Yep, it's the same one... the B3.9 is known internally in Cummins as the
4BTA, while the B5.9 (ala pre-98.5 Rams) is known as the 6BTA.
I'm not sure why the 4BTA isn't emmisions-legal.
It's a good engine, Case uses it in heavy equipment. :)
-- -Jon jonsdak@midmaine.com http://jonsdakota.tripod.com 1996 Dodge Dakota Sport 4X4, 3.9L V6, 42RE, 3.92:1 8.25 axle, "BackRack" Headache Rack, Dodge Motorsports decals, steering wheel cover, and front license plate, diamond-plate bedrail covers, Lund VentVisors, Lund BugShield, Jensen MP-3310 CD/MP3 Receiver, Pioneer TS-G1347's in front, TS-A5713's in rear, Bulldog RS-82 Remote Starter<AWyseGuy@aol.com> wrote in message news:1bb.ca72ae3.2b5c7d27@aol.com... > > In a message dated 1/19/2003 3:03:17 PM Central Standard Time, > jonsdak@midmaine.com writes: > > > > > Yeah, Cummins does make a 3.9L engine, but it's not emmisions legal in the > > States :-( > > How do I know this? Well, the displacement in my truck and that of the 4BTA > > are quite similar... ;-) > > > > Is that the same one.. I know they have a few 4 cyl setups? Is the 4BTA and > the B3.9 the same motor. If the 6 is emmission legal, the 4 cylinder based > off of it should be as well. The Jeep 4.0 would be much cheaper anyway > though. > Aaron Wyse > 94 RC WS 2.5L > 86 Shelby Charger Turbo >
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