What transmission 4.7L has? (545RFE or NAG1) - Jeep Commander Forums: Jeep Commander Forum
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post #1 of 10 (permalink) Old 06-18-2008, 04:47 PM Thread Starter
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What transmission 4.7L has? (545RFE or NAG1)

Tried to search for a confirmed answer, but no success.

What transmission type is there in a 4.7L Commander QT-II (export model) ? (545RFE or NAG1)

Which of these types is the Mercedes one? and where is the other one made?

How can I confirm the type of the transmission in the commander?

Second Jeep Commander, Current
2007 XH (International model), Green Metallic, Ltd, 5.7L HEMI, Quadra-Drive II
Spidertax 1.5" wheel spacer, K&N replacement filter
OME 2" Lift kit


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2007 XH (International model), Light Graystone Pearl, Sport , 4.7L Quadra-Trac II.





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post #2 of 10 (permalink) Old 06-18-2008, 08:21 PM
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I believe the Mercedes transmission is the W5A580 (NAG1) and it's only used with the 3.0 crd and the 3.7 gas engines. Not sure about the others.

5th Jeep

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Last edited by Jeeper64; 06-19-2008 at 04:04 AM.
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post #3 of 10 (permalink) Old 06-19-2008, 04:16 AM
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Quote:
Originally Posted by Jeeper64
I believe the Mercedes transmission is the W5A580 (NAG1) and it's only used with the 3.0 crd and the 3.7 gas engines. Not sure about the others.
I have the 3.0ltr CRD and correct, the W5A580 is the Mercedes unit as is the engine!! Its also fitted to the 3.7ltr and SRT

The 45RFE is fitted to thr 4.7 and 5.7ltr.

Oh my god, I sound like a transmission geek!!!

Si

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post #4 of 10 (permalink) Old 06-19-2008, 04:21 AM Thread Starter
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Quote:
Originally Posted by UK Commander
I have the 3.0ltr CRD and correct, the W5A580 is the Mercedes unit as is the engine!! Its also fitted to the 3.7ltr and SRT

The 45RFE is fitted to thr 4.7 and 5.7ltr.

Oh my god, I sound like a transmission geek!!!

Si
You should be as the only Commander owner with real transmissions issues.

ok, now its clear.

Is 45REF transmission a Chrysler one ? ,, and how old is it ?

Second Jeep Commander, Current
2007 XH (International model), Green Metallic, Ltd, 5.7L HEMI, Quadra-Drive II
Spidertax 1.5" wheel spacer, K&N replacement filter
OME 2" Lift kit


First Jeep Commander,
2007 XH (International model), Light Graystone Pearl, Sport , 4.7L Quadra-Trac II.





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post #5 of 10 (permalink) Old 06-19-2008, 05:38 AM
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Quote:
Originally Posted by ahmed255
You should be as the only Commander owner with real transmissions issues.

ok, now its clear.

Is 45REF transmission a Chrysler one ? ,, and how old is it ?
I was told on Monday this week that the 45REF is a Jeep designed unit and its used on the Grand Cherokee also....as for the age...I dont know sorry.

Si

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post #6 of 10 (permalink) Old 06-19-2008, 06:45 AM
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Quote:
Originally Posted by UK Commander
I was told on Monday this week that the 45REF is a Jeep designed unit and its used on the Grand Cherokee also....as for the age...I dont know sorry.

Si

in the spartacus tradition.

I'm the transmission geek.

http://en.wikipedia.org/wiki/Chrysle...E_transmission


there isn't a wiki entry for the W5A580 ..... yet
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post #7 of 10 (permalink) Old 06-19-2008, 08:38 AM
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Quote:
Originally Posted by drysuitdiver
in the spartacus tradition.

I'm the transmission geek.

http://en.wikipedia.org/wiki/Chrysle...E_transmission


there isn't a wiki entry for the W5A580 ..... yet

Looks like England is full of Transmission Geeks

Si

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Mercedes AMG ML63
Jeep Commander 5.7 Limited (Late 2007 MY)
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post #8 of 10 (permalink) Old 07-09-2008, 02:22 PM Thread Starter
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Join Date: Dec 2007
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Quote:
Originally Posted by drysuitdiver
in the spartacus tradition.

I'm the transmission geek.

http://en.wikipedia.org/wiki/Chrysle...E_transmission


there isn't a wiki entry for the W5A580 ..... yet
Thanks drysuitdiver,,,, that is a good info,,, I specially liked the PDF document, it the transmission manual for 545RFE.

Here is the link for the document directly http://hotrodlane.cc/New%20HEMI%20Te...mi%20trans.pdf

Second Jeep Commander, Current
2007 XH (International model), Green Metallic, Ltd, 5.7L HEMI, Quadra-Drive II
Spidertax 1.5" wheel spacer, K&N replacement filter
OME 2" Lift kit


First Jeep Commander,
2007 XH (International model), Light Graystone Pearl, Sport , 4.7L Quadra-Trac II.





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Last edited by Ahmed; 07-09-2008 at 02:26 PM.
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post #9 of 10 (permalink) Old 07-09-2008, 02:30 PM Thread Starter
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Join Date: Dec 2007
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I was a bit surprised that 545RFE transmission is not new for the XK or WK, it was used in the Grand Cherokee 2001.

also I knew that the transfer case is not new too, not even the 4.7L engine.

So it seems that the commander is mainly new body with abit old engine and drive line !

Second Jeep Commander, Current
2007 XH (International model), Green Metallic, Ltd, 5.7L HEMI, Quadra-Drive II
Spidertax 1.5" wheel spacer, K&N replacement filter
OME 2" Lift kit


First Jeep Commander,
2007 XH (International model), Light Graystone Pearl, Sport , 4.7L Quadra-Trac II.





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post #10 of 10 (permalink) Old 07-09-2008, 03:26 PM
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Quote:
Originally Posted by Ahmed
So it seems that the commander is mainly new body with abit old engine and drive line !
some of that old adage: If it aint broke, don't fix it!





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