Euro Torque Converter Part Number Information

runmober · **Joined:** Fri May 09, 2014 4:21 pm **Posts:** 16

FYI,

I recently lost the tranny in my CRD. Bummer, but at least I have a brother works for a not too distant Jeep dealer as a mechanic. Anyhow, in the process of ordering parts I learned what the difference is between the two available torque converters in the Chrysler supply chain. The R8073142AA is a Chrysler remanufactured unit, hence it is around $150.00 cheaper than the also available RL073142AA. That one is a new TC with the RL designation meaning that they are running low on old stock to remanufacture, so it is discounted from the actual new price and also has a $100.00 core charge. My brother highly recommends the new unit, as they don't have the same kind of luck with the remanned units.

WWDiesel · **Posted:** Tue Jan 06, 2015 10:30 pm

What are his thoughts on the 5.7L Hemi TC -- 4736587AC??
Some on this forum recommend it as a better choice as opposed to the Euro numbers you listed....
Many would like to know!!!

ArmyChief · **Posted:** Wed Jan 07, 2015 11:44 am

I'm pretty sure GMtcd approved it

gmctd · **Posted:** Wed Jan 07, 2015 12:18 pm

The 5.7L Hemi uses this TC - 4736587AC

SUNCOAST modifes the 5.7L Hemi TC for dragstrip service

The 545RFE trans in the 5.7L Hemi is same as the 545RFE trans in the 2.8L KJ CRD - TCM does the logic work for the hardware in both chassis'

The 5.7L Hemi TC - 4736587AC - replaces the KJ TC, providing lower stall, increased hookup, and is heavy duty to handle the increased power of the big Hemi

Works fine, lasts a long time - try it - you'll like it................................

click here:
viewtopic.php?p=547899#p547899

runmober · **Joined:** Fri May 09, 2014 4:21 pm **Posts:** 16

He said we could do that, but if the Hemi TC failed, he wouldn't be able to stand behind his work with his boss. That made my decision easy.

I would have liked to have the better hookup, but on this I had to defer to the guy who actually does it for a living and has for 25 years. He has concerns about the four cylinder pulse in combination with the increased vane angle doing damage to all sorts of internals, maybe. His quote: "That would be a fun experiment for someone with more cash than you and me." We have both always been "Stay on the Safe Side" guys, so I agreed.

Sorry to disappoint those who are looking for Hemi TC vindication. I'm sure they would work great.

ArmyChief · **Posted:** Wed Jan 07, 2015 12:23 pm

runmober wrote:

He said we could do that, but if the Hemi TC failed, he wouldn't be able to stand behind his work with his boss. That made my decision easy.

Not really..most of us know MORE than any DEALER tech on these products..let alone some bean-counting service manager :BANANA:

runmober · **Joined:** Fri May 09, 2014 4:21 pm **Posts:** 16

ArmyChief wrote:

runmober wrote:

He said we could do that, but if the Hemi TC failed, he wouldn't be able to stand behind his work with his boss. That made my decision easy.

Not really..most of us know MORE than any DEALER tech on these products..let alone some bean-counting service manager :BANANA:

Not more than ANY dealer tech, just most. Certainly not this one. And his service manager is a stand up guy. It's a farm country dealer that works mostly on Cummins pickups for the local farmers. My brother was aware of all the CRD issues before I bought this one and was mad that I did without asking him. I think he called me a dumba##. He did the timing belt for me and then pronounced the rest of the rig as "okay". Then the tranny fell out.....

ArmyChief · **Posted:** Wed Jan 07, 2015 12:43 pm

runmober wrote:

ArmyChief wrote:

runmober wrote:

He said we could do that, but if the Hemi TC failed, he wouldn't be able to stand behind his work with his boss. That made my decision easy.

Not really..most of us know MORE than any DEALER tech on these products..let alone some bean-counting service manager :BANANA:

Not more than ANY dealer tech, just most. Certainly not this one. And his service manager is a stand up guy. It's a farm country dealer that works mostly on Cummins pickups for the local farmers. My brother was aware of all the CRD issues before I bought this one and was mad that I did without asking him. I think he called me a dumba##. He did the timing belt for me and then pronounced the rest of the rig as "okay". Then the tranny fell out.....

My bad, I meant to say "MOST"

Apologies

gmctd · **Posted:** Wed Jan 07, 2015 1:02 pm

runmober wrote:

He said we could do that, but if the Hemi TC failed, he wouldn't be able to stand behind his work with his boss. That made my decision easy.

I would have liked to have the better hookup, but on this I had to defer to the guy who actually does it for a living and has for 25 years. He has concerns about the four cylinder pulse in combination with the increased vane angle doing damage to all sorts of internals, maybe. His quote: "That would be a fun experiment for someone with more cash than you and me." We have both always been "Stay on the Safe Side" guys, so I agreed.

Sorry to disappoint those who are looking for Hemi TC vindication. I'm sure they would work great.

'05-'06 KJ CRD hasn't been around for "25 years", and most CJ service 'techs' wouldn't touch one with a Dodge 5.9L tech's hands - thus, your recently revised familial reputation

SUNCOAST also installs this in the KJ CRD's - only difference to stock is "billet" drive housing, brazed turbine fins, and kevlar clutch facing required for 8000rpm ^450hp dragstrip service behind the HEMI 5.7L in that half-ton pickup truck

Stock or "EURO" KJ TC has none of this, and SUNCOAST won't upgrade one, but they survive behind the 4-cyl Diesel

But, I understand wanting to get rid of any "EURO" TC stock while they still can - after all, these KJ's have been obsoleted since '06, and any hi-dollar sale is serendipitous wind-fall

Don't forget: if we're not your first informative source, we will be your next-to-last gasp, eh................

BTW: if yours is an '05, you will need a complete new upgraded\revised front pump
Some '06's need the new front pump, also
Some service managers had the TC replaced but not the pump

runmober · **Joined:** Fri May 09, 2014 4:21 pm **Posts:** 16

We are installing a front pump as that is one of the parts that failed, mostly likely it has bits of the TC inside it.
I have NO disagreement with the proposition that the Hemi TC may actually work better, it's just not a trip I want to take right now. I have a son in college, a wife with Multiple Sclerosis, and NO room for budgetary gambles. If I install the Euro TC, and the tranny takes another dump, I'm covered by my bro. That's all.

I am very appreciative of the information you all make available here.

gmctd · **Posted:** Wed Jan 07, 2015 1:44 pm

runmober wrote:

We are installing a front pump as that is one of the parts that failed, mostly likely it has bits of the TC inside it.
I have NO disagreement with the proposition that the Hemi TC may actually work better, it's just not a trip I want to take right now. I have a son in college, a wife with Multiple Sclerosis, and NO room for budgetary gambles. If I install the Euro TC, and the tranny takes another dump, I'm covered by my bro. That's all.

I am very appreciative of the information you all make available here.

No prob, dude - just wanted you to have the "other side of the story", incl:

Stock TC works ok, but has increased incidence of driveline shudder in lock-up - reason for upgrade

"EURO" TC has revised spring tension in the clutch-hub as attempt to reduce the shudder - you be the judge

Hemi TC has increased clutch-hub spring tension and more springs because the Hemi is way more powerful - advantage is the increased hydraulic hookup off the line

So, the "EURO" is not a bad choice, particularly in your situation
- not replacing the front pump would be a bad choice with any selection, tho, so you're ahead of the game with a family member taking care of business

runmober · **Joined:** Fri May 09, 2014 4:21 pm **Posts:** 16

A bit of an update -

The transmission is done and working again, completely rebuilt. We slapped in the Transgo 45RFE-HD-2 kit as well, and that does improve the feel of the 545rfe slushbox as it shifts. Much firmer now. Next step is to pull both the Engine and Tranny computers and mail them off to GDE.

ArmyChief · **Posted:** Fri Jan 30, 2015 3:58 pm

Did you go with the Euro or Hemi TC?

WWDiesel · **Posted:** Fri Jan 30, 2015 5:00 pm

runmober wrote:

A bit of an update -

The transmission is done and working again, completely rebuilt. We slapped in the Transgo 45RFE-HD-2 kit as well, and that does improve the feel of the 545rfe slushbox as it shifts. Much firmer now. Next step is to pull both the Engine and Tranny computers and mail them off to GDE.

The Transgo 45RFE-HD-2 kit is a very good addition while you were in there!!! Way to go!
If you want to upgrade your engine computer yourself (re-flash), the various upgrades and instructions are available on this forum at no cost...
You can read all about it at: http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=98&t=78418

runmober · **Joined:** Fri May 09, 2014 4:21 pm **Posts:** 16

ArmyChief wrote:

Did you go with the Euro or Hemi TC?

Euro. See above for the logic.

ibedonc · **Joined:** Mon Feb 12, 2007 2:40 pm **Posts:** 236

gmctd wrote:

The 5.7L Hemi uses this TC - 4736587AC

SUNCOAST modifes the 5.7L Hemi TC for dragstrip service

The 545RFE trans in the 5.7L Hemi is same as the 545RFE trans in the 2.8L KJ CRD - TCM does the logic work for the hardware in both chassis'

The 5.7L Hemi TC - 4736587AC - replaces the KJ TC, providing lower stall, increased hookup, and is heavy duty to handle the increased power of the big Hemi

Works fine, lasts a long time - try it - you'll like it................................

click here:
viewtopic.php?p=547899#p547899

I am seeing that 4736587AD replaces 4736587AC , would you go with that one ?

gmctd · **Posted:** Tue Feb 03, 2015 2:00 am

ibedonc wrote:

gmctd wrote:

The 5.7L Hemi uses this TC - 4736587AC

SUNCOAST modifes the 5.7L Hemi TC for dragstrip service

The 545RFE trans in the 5.7L Hemi is same as the 545RFE trans in the 2.8L KJ CRD - TCM does the logic work for the hardware in both chassis'

The 5.7L Hemi TC - 4736587AC - replaces the KJ TC, providing lower stall, increased hookup, and is heavy duty to handle the increased power of the big Hemi

Works fine, lasts a long time - try it - you'll like it................................

click here:
viewtopic.php?p=547899#p547899

I am seeing that 4736587AD replaces 4736587AC , would you go with that one ?

Answered your pm B4 seeing this

4736587AC when plugged into moparparts,Others, etc, will convert to
R4736587AD. (remanned)

The AD means they've made some running production change after the AC production run - dunno what was done, but if you ask the dealer parts guy, he may have that info in their tech upgrades memo

It may only signify the remanned version

5.7L HEMI 545RFE transmission assembly P52119451AB

5.7L Hemi TC -- 4736587AC
R4736587AD. (remanned) Replaces:4736587AA, 4736587AB, 4736587AC, R4736587AC
new transmission pump - 68009879AB
flat transmission filter - 5013470AD
spin-on transmission filter - 5179267AC
WIX transmission filter set with pan gasket - 58843

viewtopic.php?f=5&t=80458

ibedonc · **Joined:** Mon Feb 12, 2007 2:40 pm **Posts:** 236

5.7L HEMI 545RFE transmission assembly P52119451AB

local stealship

5.7L Hemi TC -- 4736587AC $350 no core , new they have them in Dallas
R4736587AD. (remanned) Replaces:4736587AA, 4736587AB, 4736587AC, R4736587AC
new transmission pump - 68009879AB , they give me RL009879AE and $450 !! with $100 core , have to look some where else
flat transmission filter - 5013470AD $33.75
spin-on transmission filter - 5179267AC $18
WIX transmission filter set with pan gasket - 58843 , is this a kit with above filters ?

gmctd · **Posted:** Thu Feb 05, 2015 4:24 am

ibedonc wrote:

5.7L HEMI 545RFE transmission assembly P52119451AB

local stealship

Jist fer grins'n'giggles price the
oem stock TC - 05175969AB
euro torque converter - 68037142AA
for comparison

5.7L Hemi TC -- 4736587AC $350 no core , new they have them in Dallas
R4736587AD. (remanned) Replaces:4736587AA, 4736587AB, 4736587AC, R4736587AC
new transmission pump - 68009879AB , they give me RL009879AE and $450 !! with $100 core , have to look some where else
flat transmission filter - 5013470AD $33.75
spin-on transmission filter - 5179267AC $18
WIX transmission filter set with pan gasket - 58843 , is this a kit with above filters ?Could call NAPA to find out, fer sure...............

.

runmober · **Joined:** Fri May 09, 2014 4:21 pm **Posts:** 16

An update- the saga of the CRD tranny continues. After a complete teardown and rebuild, including the oil pump, TC and all new frictions, yada yada, the tranny went into limp mode a couple of weeks later. Teardown revealed that the one part not replaced and hence under warranty broke, ruining not only the new internals but the case as well. The large snap ring that holds the clutch retainer bulkhead in place simply broke and fell out, allowing the entire internal assembly to ride forward pretty much get all screwed up. Anyhow, back to square one. Crap.

In the interim I had enough drive time to learn that I hate the Euro TC as much as the original TC.

So the best possible solution was a used tranny. I was able to source a 545rfe from a 2006 Dodge Mega Cab half ton with only 51k miles. So we are now testing not only if the Hemi TC works, but also if a Hemi transmission works as well. Everything looks the same side by side. We should have the tranny back in on Saturday, I'll post with results. In hindsight, this should have been the plan from the get go. The are so many 545rfe's in local junkyards in Grand Cherokees and Ram pickups that they are all pretty cheap, even with a one year warranty. I got mine for $700.

Euro Torque Converter Part Number Information

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