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Old 10-06-2013, 10:09 AM   #1
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Luftstrom's Avatar
1971 31' Sovereign
Pueblo County , Colorado
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Mystery Item

I need help identifying the item in the picture below. It is some kind of coil connected to two blue wires. The coils is mounted in an old and rusty intermatic sprinkler timer box so I think this was an after thought by a PO. The box is mounted next to where the umbilical enters our 1971 Sovereign and the blue wires lead inside. I have tried tracing where they go but no luck.

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What is it ? Can I get rid of it or replace it with something less obtrusive ?

Thanks for any help, hints etc.


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Old 10-06-2013, 10:34 AM   #2
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1978 31' Excella 500
Venice , California
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That is probably a votage dropping resistor for the trailer brake system. They were usually mounted in the tow vehicle. Obsolete technology now.

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Old 10-06-2013, 10:52 AM   #3
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1974 Argosy 20
2014 20' Flying Cloud
Kooskia , Idaho
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Yes, a brake resistor for very old brake controllers. You can eliminate it and just hook your brake wires directly to the tow vehicle and use a modern electronic brake controller.
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Old 10-06-2013, 11:42 AM   #4
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1997 34' Limited
1970 27' Overlander
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IF you need another, I too say it is the old brake resistor.
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Old 10-06-2013, 02:58 PM   #5
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1969 31' Sovereign
Broken Arrow , Oklahoma
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X4....brake resistor.
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Old 10-06-2013, 03:12 PM   #6
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1975 31' Sovereign
1980 31' Excella II
Sprung Leak , North Carolina
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Yup brake resistor, interesting mounting point though... Mine was under a cover inside the trailer behind the gaucho. I have also seen them mounted under the hood on older cars and trucks.

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Old 10-06-2013, 04:05 PM   #7
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1971 31' Sovereign
Pueblo County , Colorado
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Thanks, everybody. One mystery down, many more to go.

It's coming off tomorrow.

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