What diesel engine is best for a CJ? - Page 2 - JeepForum.com
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post #16 of 27 Old 09-16-2009, 10:07 AM
2000 XJ Cherokee 
Join Date: May 2009
Location: concrete jungle MI
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A buddy of mine has a huge diesel I6 engine and a I4 diesel engine with about 100 hours on both.. the engines were testers for getting a perfect cooling system by a company them sold for really cheap.. they both have a turbo... look fresh, almost brand new...I really want to find a truck that needs a engine and do the swap, he want 5500$ for the I6 and the I4 is his... they are perkins engines and made to fit were a cummins B series diesel was...

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post #17 of 27 Old 09-16-2009, 03:53 PM
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1983 CJ7 
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Location: Virginia
Posts: 69
Funny, I was just looking for reasons to drain my bank account and came up with these: (* I know, one of these is for a 93 wrangler. Gotta take what you can get sometimes)

Cummins 4BT & Diesel Conversions Forums - Powered by vBulletin

Jeep Diesel Conversion by Jeff Daniel's Jeep Customizing

1993 Jeep Wrangler YJ Cummins Diesel - Diesel Trucks - Diesel Power Magazine

Cummins jeep yj - TheDieselGarage.com
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post #18 of 27 Old 09-16-2009, 11:16 PM
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1982 CJ7 
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Location: Jamestown, NY
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Originally Posted by Modfather View Post
A cummins 4BT or the newer 3.3BT are great little motors. The only problem is they are worth there weight in gold so good luck finding one cheep.
God damn it!

P$yCh0--82' CJ7--Chevy 305--T-176--Dana 300--39.5" Super Swamper TSL's--12" lift--S.O.A. Conversion--Old Sarge
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post #19 of 27 Old 09-16-2009, 11:23 PM
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2004 KJ Liberty 
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the best i can think of would be the nissan scout diesel and the Cummins 4BT. but have you thought of a Detroit 353? its aluminum. and supercharged, sometimes also turbocharged.
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post #20 of 27 Old 06-07-2010, 01:25 PM
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1979 CJ7 
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Location: murrieta
Posts: 54
i heard of some guy who put one of those VW tdi engines in his jeep a few years back and he was getting up to 50mpg highway in his tj....idk but that sounds alot better than the 10mpg that my cj is getting now haha

Ferrari Enzo 0-60: 3.4 seconds
Lamborghini Gallardo 0-60: 4.1 seconds
Pagani Zonda 0-60: 3.5 seconds
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post #21 of 27 Old 06-07-2010, 01:56 PM
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1980 CJ7 
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Location: Waller, TX
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When I first bought my CJ-7 back in 94. The PO had installed a 4cyl Isuzu turbo diesel. It ran great till the turbo went out. It would get 30 mpg hwy running 70. It came with 4.11 to 1 gears and 31" tires. Being young and dumb I took it out and installed a sbc 283, then a sbc 400, which it still has. Now though with 33" tires and the same 4.11 gears it now gets prob 8 mpg. Although it has plenty of power to come out of a mudhole.

I sure wish I still had that little diesel though.
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post #22 of 27 Old 10-24-2010, 12:54 PM Thread Starter
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1988 YJ Wrangler 
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This is an old post. Im partial now to the 4bt. Dont bother trying to buy one. Big$$$$$, but you can usually find the whe truck witha good motor in it for 700$ or less. Being a cummins motor, tranny options are abundant, nv4500, few automatics from dodge, sm465, and so on. I guess a 4bt swap would run close to the same price as putting in a 5.0, or any other efi motor. Also, i would guess easier too, no ecm to worry aboht, no ignition system, plus a lot of other stuff that u need to run a gas motor. 4bt has what, 4 wires goung to it.

The only reason i know any of this nowadays is my hauler is a 1997 dodge 2500 cummins. Learn alot when u own one.


1988 Wrangler 89000 miles, no rust, no rot, all nice and pretty.. Runs down the highway really nice too.. This is great fun.
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post #23 of 27 Old 10-24-2010, 11:11 PM
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1978 CJ7 
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Location: Cottonflat, TX
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This was in Dallas Craigslist today. Japanese diesel CJ3B


Have no idea where "Tishomingo" is.
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post #24 of 27 Old 10-25-2010, 04:44 PM
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1976 CJ3B 
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Tishomingo comes up as in Oklahoma. It's Paladin trucks. Company's posting: Product Detail It's weird that they didn't say who they were in the CL ad.

I'm all for more J54 owners, I love mine. Got it off eBay from a fellow in Oregon. Get's 30 mpg and with lockable hubs plus overdrive that'd be more like 38 or 39 mpg. CJ3B clone. Transfer case is Dana Spicer 18 clone. Transmission is either a T90 with an additional intermediate gear or a T98 with no granny gear.

But that's off topic from the engine question. Engine is the Mitsubishi 4DR5, used in the US in Mitsubishi forklifts: 2.7L 4 cyl. Variants were used in the Mighty Max pickup. A Mitsubishi Diesel Jeep is a great option if you don't want to pay the $12000+ labor (Jeff Daniels quote) to swap a 4BT into a CJ. You won't have many options to select from unless you import it yourself. Luckily there weren't many factory options, so they're all about the same anyways, just condition.

If you're swapping a diesel into a Jeep stick with the tried and true 4BT. There's tons of info online about solving the custom things you'll have to deal with.

Just realized that I wrote all this and it's an old thread. Oh well...
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post #25 of 27 Old 04-21-2013, 09:18 PM
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1986 CJ7 
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Location: Ventura
Posts: 73
About California: Recently looking at a thread about Diesels in CA and the issue of which diesels can be put in a jeep because of vehicle type etc. For instance the 4bt is not for a passenger car or 1/2 ton truck. This is why people can swap in a 1.9 TDI and others. So what I was thinking... has anyone put the 3.0L diesel from the BMWs? I have one in my X5 and it's a great engine and would love to have it in my CJ. I'm sure there would be tons of issues with the computer not to mention the tranny. Just a thought.
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post #26 of 27 Old 04-22-2013, 01:35 PM
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1982 CJ7 
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3500 cj7 are sold by Renault in France: 500 with gazoline engine and 3000 with diesel engine; a lot was swapped with a turbo diesel engine with
88 HP and 20 mkg, the same engine has equiped the cherokee
the parts are perhaps available also in USA
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post #27 of 27 Old 04-22-2013, 03:38 PM
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1983 CJ7 
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Location: North Andover, MA.
Posts: 211
If you're going to adapt a German engine, do the OM617 motor out of the older Mercedes.
It's the cast iron "million mile" engine. There's a ton of them out there, and generally, in
the rust belt, the bodies go long before the motor. Pick one up for $500-$1000 if you get
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