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Difference between 5.2 and 5.9 Radiator

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  #1  
Old 11-10-2011, 01:43 PM
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Default Difference between 5.2 and 5.9 Radiator

Can a radiator for a 5.9L work for a 5.2L? It sounds like the oil lines might have a different connections.

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Dwight
 
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Old 11-10-2011, 01:48 PM
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94-01 3.9,5.2,5.9 all take the same aftermarket part # (1552) in most cases. A couple of manufactures seperate the 5.9 as an aftermarket part# 2291 (98-01)and has a larger internal cooler. The difference may also be in that one has an auxillary trans cooler. The fitings/lines/cooler can be swapped in most cases, some aftermarket units can be harder than others due to varying manufacturing standards
 

Last edited by Archion; 11-10-2011 at 01:57 PM.
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Old 11-10-2011, 01:51 PM
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Thanks for the reply. It's a 1999 ram 1500. I've located a used rad from 5.9L, OEM. Sounds it should work then.

Appreciate the help.
 
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Old 11-10-2011, 01:55 PM
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Should in most cases, but always match it up completely before you install and fill. Also if that is a used automatic unit, flush/clean the cooler as few times. it's a good possibility that the source truck had a bad trans with these trucks.
 
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Old 11-10-2011, 01:57 PM
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What is the best way to flush the cooler? That's a good point.

Thanks
 
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Old 11-10-2011, 02:22 PM
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You can get cooler flush from most decent parts stores or supply house, like napa, carquest or if you have a Dacco Detroit or ATC in your area.
 
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Old 11-10-2011, 02:52 PM
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Wouldn't brakleen and compressed air work as well?
 
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Old 11-10-2011, 03:14 PM
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It can in most cases, but the trans cooler flush is actually a little stronger chemically and with the track record of these transmissions, I like to get as strong a product as I can.
 

Last edited by Archion; 11-10-2011 at 03:20 PM.
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Old 11-10-2011, 03:18 PM
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Ok, thanks for the info.
 
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Old 11-10-2011, 03:21 PM
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NP, What works really well, is if you have access to the evaporative type A/C flush and a flush gun...
 


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