It is currently Sun Jul 15, 2018 11:00 pm

All times are UTC - 5 hours [ DST ]

Post new topic Reply to topic  [ 5 posts ] 
Author Message
 Post subject: CRD swap with Cummings 4B
PostPosted: Mon Aug 07, 2017 8:37 pm 
LOST Newbie

Joined: Mon Aug 07, 2017 10:37 am
Posts: 14
hello diesel fans...I am a diesel freak, I love em, until they break. I own dodge ram diesel, vw jetta tdi, vw rabbit diesel, diesel tractors, diesel dozer, So now I bought an 06 crd with a stuck engine. ANd I mean stuck. I'm in the process of pulling the engine and finding out what's wrong. I do know that previous owner never changed oil. Oil came out of the drain plug like warm peanut butter so I basically know what to expect the bearings to look like. So I'm thinking this is going to be more $ than I want to spend. So I was entertaining the idea of retro fitting it with a cummings 4b. Has anybody out there seen or heard of this swap. I would appreciate any input on this, Thanks in advance

 Post subject: Re: CRD swap with Cummings 4B
PostPosted: Mon Aug 07, 2017 9:42 pm 
LOST Addict
User avatar

Joined: Sat Aug 24, 2013 11:36 pm
Posts: 3851
Location: Central GA
If you are going the retrofit route, take a look at this Cummins engine, it would come closer to fitting in the Jeep CRD than the 4BT engine with the least modifications...
They are already installing them in JK's...


05 Jeep Liberty CRD Limited :JEEPIN:
Blk Brush Guard/Hella's/LED's
Ironman Springs/Bilstein's
Yeti Stg4 MaxTune
Weeks ElbowKit/BatteryTray
Carter Intank-pump
2mic.Sec.Fuel Filter
V6 Airbox
GM11 blade fan/NAPA HDclutch
Ironrock Trilink
98 Dodge Cummins, 5"exh. Viair, Huge K&N

 Post subject: Re: CRD swap with Cummings 4B
PostPosted: Mon Aug 07, 2017 9:43 pm 
LOST Addict
User avatar

Joined: Sat Aug 27, 2016 9:12 pm
Posts: 1875
Location: Oregon Coast Dairy Country. Land of stumps, dumps, and "Liquid Pumps"
4BT / BTA are HUGE. Like nearly additional 400 pounds HUGE.
and with half the horsepower
and 70% of the torque AFTER cranking them up to 'bomb' AND adding intercooler and exhaust.
They are tough though. And easy to get parts for.
The Cummins repower 2.8, however, is aimed directly at Jeeps. Both diesels and otherwise.
Still pretty gutless stock, but you don't have to fight with FCDJA to get a good tune, and you'd have great domestic customer support.
One would have to be pretty married to the Liberty to put another 8k-10k into it, but once running, it's probably the last money you'd have to spend on engine stuff.
The rest is still a Jeep. Tits, warts, and all.

EDIT: Then again, if GDE starts doing combined tunes to make them work in place of factory CRDs..transmissions... That could really sweeten the pot.

'06 Lbrty Sprt CRD 150K

DSS Turbo
Weeks Stg1&2 EGRfix
vent gauges

Timing set
ARP studs
eTn1 GX2123 5v GPs

YETI Custom Tune
Flowmaster 8325508
Carter P76611M
GM 12611872
Hayden 2986
GM 15976889
PATC Custom Billet
2010 Ram Hemi Trans
Sonnax 44957
Transgo kit
Cooper 51770

 Post subject: Re: CRD swap with Cummings 4B
PostPosted: Thu Aug 10, 2017 7:42 am 
LOST Addict

Joined: Fri Jun 22, 2007 11:43 am
Posts: 4250
Location: Green Cove Springs FL
Over in the CRD section there is a guy who has two 2005 CRDs for sale.
You could buy one of them and swap motors for less than the cost of a 4BT swap.

I like the idea of swapping in a 4BT but that engine is taller and heavier.
You'd have to modify the front suspension to support the weight.
And probably cut a hole in the hood to allow room for the valve covers.
And then there is the issues with all the electronics which means you would probably have to swap the transmission for something like a 700R4.
If you have lots of time and a unlimited budget then you could probably build the Liberty into a super awesome monster rig.

Personally, I'd rather get an old Bronco or F150 and put the 4BT in it. Lots easier.

Bought my '05 CRD on June 2nd '07, used with 29,000 miles.
intake elbow and EGR delete. 7 volt Etecno glow plugs
Yeti stage 2 ECU tune. Straight pipe exhaust. DIY intercooler hoses
Provent and modified factory 180F thermostat
Replaced cylinder head (cracked) at 160,000 miles + ARP studs
2.5 inch lift, 255-75-17 tires.
Still love it.

 Post subject: Re: CRD swap with Cummings 4B
PostPosted: Thu Aug 17, 2017 8:49 pm 
Lifetime Member
Lifetime Member

Joined: Sat Apr 01, 2006 9:38 pm
Posts: 13114
Location: Colorado Springs
Not to mention putting a 4BT in a '06 vehicle is illegal since they stopped making 4BT's in 2005.

Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 

All times are UTC - 5 hours [ DST ]

Who is online

Users browsing this forum: lacrosseman2010 and 1 guest

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group. Color scheme by ColorizeIt!
Logo by