Engine/Transmission (1998.5 - 2002) Chrysler Transmissions

[Nate]

I was just wondering if someone could explain a bit on the how the numbering system works for the Chrysler transmissions?



a-500, 518, 618, etc what is that? and how is it different from 42RE, 46RE, 47RH, 727 etc?



The reason I ask is this:



I bought some filters at Napa today. 1 for my truck, a 98 24 valve (47RE), and 1 for an 01 1500 with the 5. 9L gasser (46RE).



The one for my truck was ~$8, the one for the gasser ~$16.



Now to me they are the same darn thing pretty much...



The gaskets are the same, filters are the same other than one is plastic covered with 2 holes (1500), the other isn't and 3 holes (my truck). When I looked at the kits with the rubber gaskets, the one for my truck was the same filter as the plastic one from what I could tell.



So is Napa's system screwed up, or is there something different between the two??

 

[Nate]

Oh... don't mind the dog, I dunno what went on there, but I guess he's guarding the transmission filters

 

[moparmikeJ]

Nate- Don't quote me on this but I believe the A-518 is the 727 with no OD but with lockup; The the 47RE is the same as A-518 but includes overdrive.

If I remember correctly, my '96 46RE had the non-plastisized filter and my '99 47RE has the other! Also, I think my '99 has a reusable gasket.

Take care! Mike

 

[Nate]

Yes I have the reusable Mopar gasket on my truck as well, but the filter/gasket kit was cheaper than just the filter for some odd reason.



The 1500 is not my truck and he didn't want any extras like the Mopar gasket or for me to put in a drain plug. I was thinking I'd be able to save him some $$ by using the same kit that is for my truck.

 

[zstroken]

a518 is the 46RE, a618 is a 47RE, they dropped the a619 when they went to the 48RE. I think

 

[steved]

A518 is the 46RX series



A618 is the 47RX series



A818 is the 48RE (they didn't make an 48RH version)



The numbers signify the "torque" capacity of the transmission... the 518 will "handle" 500 ft-lbs, the 618 will take 600 ft-lbs, and the 818 will take 800 ft-lbs...



All the filters are real close... the pan gaskets should be the same.



steved

 

[Nate]

How about the 42RE, 44RE? Would that be the A-500?



Does the RE or RH give it a different A number?





So can I use the filter for the 618 on a 518 transmission? They seem like the same thing.

 

[steved]

How about the 42RE, 44RE? Would that be the A-500?



Does the RE or RH give it a different A number?





So can I use the filter for the 618 on a 518 transmission? They seem like the same thing.

I believe as long as the filter has the same screw patterns it should fit fine... I can't remember but I believe the 47RX uses a "deep" pan while the 46RX uses a shallow pan like the old 727s...



I don't know what the 42 and 45s would be called... I talked this over with my transmission guy when they rebuilt the 47RE in my 99CTD... that's where I got the torque specs...



Oh, and RH means it's a hydraulically controlled transmission (the PCM only controls the OD and lockup)... RE means it is an electronically controlled transmission (the PCM controls a lot more stuff)...



steved

 

[zstroken]

I don't think that there is an A818 model. DCX when away from this around 2003 model year. Just like they dropped the 604 and 606 numbers and called it the 41TE and 42LE, respectively

 

[steved]

I don't think that there is an A818 model. DCX when away from this around 2003 model year. Just like they dropped the 604 and 606 numbers and called it the 41TE and 42LE, respectively

Yes, the 48RE is a A818... I have seen this more than once...



steved

 

[cerberusiam]

The numbers signify the "torque" capacity of the transmission... the 518 will "handle" 500 ft-lbs, the 618 will take 600 ft-lbs, and the 818 will take 800 ft-lbs...

C'mon Steve, yer pullin' our leg,right???? :-laf :-laf





The stock 48RE is rated at 530 ft/lbs of input TQ hence all the defueling, 800 would KILL it in short order!!





I remember hearing all the A518-618 designations were changed to the 47RE type notation to denote the differences between fwd/rwd, electronic/hydraulic shifts, and strength ratings.



As to the original question about cost the answer is "because they can".

 

[steved]

The numbers signify the "torque" capacity of the transmission... the 518 will "handle" 500 ft-lbs, the 618 will take 600 ft-lbs, and the 818 will take 800 ft-lbs...

C'mon Steve, yer pullin' our leg,right???? :-laf :-laf





The stock 48RE is rated at 530 ft/lbs of input TQ hence all the defueling, 800 would KILL it in short order!!





I remember hearing all the A518-618 designations were changed to the 47RE type notation to denote the differences between fwd/rwd, electronic/hydraulic shifts, and strength ratings.



As to the original question about cost the answer is "because they can".

No, I'm not pulling your leg... this is the manufacturer's listings... I have seen this more than once.



Believe what you want.



steved