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Old 07-16-2013, 07:32 PM   #1
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Winnebago Owners Club
Join Date: Jun 2012
Posts: 10
03 E450 v10 Radiator replacement to all alum

My 03 V10 has a leak on the plastic bottom radiator tank to the transmission cooler line, should I go with OEM or a all alum radiator, shop say's this is a common problem and the expansions rates are different between alum and plastic..I have a small coolent leak and wondering if I need to get on it or I can wait a bit..or will it blow out soon. Let me know your ideas!.. Do I need to use the factory coolent E2FZ-19549-AA ?

03 E450, 27' Itasca Sundancer

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Old 07-16-2013, 08:19 PM   #2
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If it is dripping, replace it. You don't want to chance a full blow leak when your on the road. OEM style radiators are just fine. No experience with all aluminum other than on drag cars but I don't see any advantage going that route for a motorhome in an E van chassis.

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Old 07-16-2013, 08:20 PM   #3
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Just use the original coolant or the everything mix you can get from the parts store.
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Old 07-18-2013, 08:28 PM   #4
Join Date: Jun 2013
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The stock rad is fine. All aluminum can crack too. Sometimes the cap doesn't vent right, causing the rad to fail. Install a new cap with the new rad.
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radiator, replacement, v10

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