This part is leaking coolant. 2015 cascadia with parksmart apu system. One coolant line in, one hose going up to the parksmart unit in sleeper. One exhaust pipe coming out. Can anyone tell me what this part is called? I beleive its part of the parksmart system. Thanks in advance for any help..
Help me identify this part..
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by omeeze, Nov 26, 2020.
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Looks like a diesel-fired Webasto heater unit.
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Flux Capacitor
truckdriver31 and little cat 500 Thank this. -
It looks like an Espar Hydronic D5 coolant heater.
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Lostkeys and truckdriver31 Thank this.
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Is leaking coolant the only issue you have with it? If it is, that unit needs to cleaned so you can locate the source of the leak. My guess would be that the hose clamps just need to be tightened. I got about 8 years out of mine before the fan quit and I replaced the unit. If yours needs to be replaced, I have a spare one that I would sell.
If you are unaware, YouTube has some videos on care and maintenance if you are interested.Last edited: Nov 27, 2020
omeeze Thanks this. -
Lostkeys Thanks this. -
Are you able to temporarily hang the unit vertically with maybe a tarp strap and then run it while watching for the leak? Also, if there is extra play in the coolant hoses you can cut .5" to 1" off the end and then reattach to the heater. That has worked for me in the past. I would also try new clamps.
There are two o rings inside under the top cover. Watch some you tube videos before you take it apart.
If you want to buy mine, I'm sure we can work something out but it is worth trying everything else first.
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