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Old 03-24-2025, 07:03 PM   #1
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Def tank

I have a 2018 Isata 5 30FW. I'm wondering if the unit has 1 or 2 def tanks. There is one location by the drivers door to fill up a tank. Is this the only one or is there another one mounted on the engine? Thank you!
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Old 03-25-2025, 04:28 AM   #2
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Is it on a Dodge Ram with a Cummins? If so, there should be only one tank but I don't own one so we can wait for somebody who does to confirm for sure.
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Old 03-25-2025, 08:36 AM   #3
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Yes, its a Dodge Ram with a Cummins
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Old 03-25-2025, 10:21 PM   #4
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I don't have the RV.

A friend in east Dallas has two 550 Rams, a 2018 and a 2023, with the Cummings diesel engine. He hauls heavy mowing rigs on big trailers up to 3 of the mowers on a trailer. The mowers that trim roadsides and neither has more than one DEF tank.
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