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Old 12-14-2019, 10:22 AM   #1
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Coolant filter

Is the coolant filter, left and bottom side of ISM 450 engine compartment on a 2017 DSDP?

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Old 12-14-2019, 10:41 AM   #2
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Okay, I see you have two posts going about a coolant filter and air dryer. That's your air dryer in the photo you posted. Your engine is an ISL, not an ISM. They discontinued the ISM engine. Your coach doesn't use a coolant filter.

Make sure you dump your air and drain your air tanks before you try and remove the air dryer. Three years is a good change interval for the air dryer.
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Old 12-14-2019, 10:45 AM   #3
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It's been over a decade since Cummins installed coolant filters on ISL engines.
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Old 12-14-2019, 11:02 AM   #4
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Thanks Don. I was using the Spartan app maintenance list (see below) which apparently is very generic and not custom. Click image for larger version

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Old 12-14-2019, 11:43 AM   #5
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Hi - Just a side bar here. The info you posted doesn't seem to line up with the Cummins recommendations for an L9 or ISL9. Please see the attached but in short oil changes are at 12 months, 18 if you use the LF14009NN filter. Always try to figure maintenance off the components numbers, not the chassis manufacturer, unless it is their product.


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Old 12-14-2019, 12:11 PM   #6
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Thanks. App not worth much around maintenance except to start asking questions. I was not aware of the filter upgrade. Makes a lot of sense.
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