Help Identifying Accessory - 01 M1097

[O18]

Trying to figure out what this is. Just picked up this 2001 M1097 and am working through it. Clearly looks like it was added in its service since they moved the washer fluid reservoir to fit it. Trying to determine if I should keep or remove it.

Connections/Hoses:

1. The coil tube coming off the side of the truck looks like a drain line
2. The black tube next to is open under the hood looks a vent line
3. Power line was run directly to the battery (fuse had been removed so it wasn’t in service)
4. Another wire was run under the dashboard- assuming it was for a switch but only a plug remains
5. The large black hose going along the firewall trees into what looks like cooing system (there is no return - just a single connection)

appreciate the help. First time HMMWV owner and poster. Apologize if this is covered in another thread.

 

[juanprado]

Maybe a water / b lock heater for extreme cold.

Never seen that before.
@Guyfang could translate the label.

Sure looks like a field unit mod.

 

[Retiredwarhorses]

Swingfire heater system for Arctic operations

 

[Guyfang]

I can not read enough of the label to really say, other then indeed its a diesel fired heater.

 

[Dieselmeister]

It's an Eberspacher 5kw arctic diesel fired engine heater (D5WS). The stainless hose is the exhaust. You should have two water connections, an electric, and diesel connection (pump) as well. Usually these are mounted low, to keep them from getting air locked. Search for "d5w s engine heater".

 

[Mogman]

If it is anything like the swingfire used on the Unimogs it is LOUD, that one is a pulse jet, think German V1 rocket!

 

[O18]

It's an Eberspacher 5kw arctic diesel fired engine heater (D5WS). The stainless hose is the exhaust. You should have two water connections, an electric, and diesel connection (pump) as well. Usually these are mounted low, to keep them from getting air locked. Search for "d5w s engine heater".

It's an Eberspacher 5kw arctic diesel fired engine heater (D5WS). The stainless hose is the exhaust. You should have two water connections, an electric, and diesel connection (pump) as well. Usually these are mounted low, to keep them from getting air locked. Search for "d5w s engine heater".

Thank you - I appreciate the insight! Living in Texas I’m not sure I’ll be using it but it’s something unique to talk about I suppose.

I assume it’s ok to leave installed?

 

[Mogman]

Unless I was going to restore it for shows as an arctic issue vehicle I would loose all of it, there is not enough room for what you will likely want to do anyway, that WW fluid tank flopping around is not attractive ether.
There would never be a real need for it.
Besides there may be someone that does live where it could be useful that would want it..

 

[mccullek]

One thing I can tell you. If you use it, it will run you out even in really cold temps. Those things throw out very hot and dry air. Love them for easy and cheap heating in the coldest temps.