Tripac overhead

[Waterloo]

(09-25-2017 )dhirocz Wrote:  ...spent the day at the loves on my back changing cab air bags. Tons of fun but it's done at least. Not too easy without a small enough bottle jack but I did find another use for my chocks.

Sat there for a minute while cussing and looked over at the APU and realized that aside from whatever maintenance and repair has been done to it since I've owned the truck, not much else has likely been ever done to it.

My local thermoking is all but useless. I've had a hell of a time finding parts because the sticker with the engine model number is gone and cannot find information regarding glowplugs, setting the overhead on it, replacing the temp probe in the cab etc... Of course, their solution is 'bring it to us and let us do it' which changes into 'you are better off just buying a new unit' and 'we will take off your old functional unit free of charge but it'll cost you what we would give you as a core'...basically they want to screw me too. Not to mention parts look to be much cheaper elsewhere if you try to get away from their markup.

Any advice? If I can keep this 871 running I don't see why I couldn't do the same with the APU...

What year is the APU, there are only three generations I believe, and the new Evolution. If you have an 871, you more than likely have the same unit I have, which was produced from 2007 to 2010 I believe. Mine is still humming along, but the AC compressor has about had it. As far as parts, I use these guys, http://www.thermobyproducts.com/TRI_PAC_s/101.htm

They source parts from the actual TK parts manufacturers and it is hard to beat their prices. The heater hoses inside of your cabinet, $90 ea at my local TK dealer, I think $7 at the link above. I needed a new radiator for mine, $155 at the link, $555 at the TK dealer. Denso fan, I paid $79, TK dealer wanted around $300.

So, if you need parts, these are the guys to contact. They don't know as much as you might expect about the APUs, so have your ducks in a row when you call for parts.

Also, I think Brock posted a TK cheat sheet not long ago in regards to the control unit inside our sleepers. If you can find it in one of the threads here, I think that may help with identifying the unit in regards to model number. What year is your truck, and do you know if the APU was installed when the truck was purchased new? That right there should lead you to the info you are searching for. Like I said, there are only a few generations, and there is not that much difference between any of them mechanically.