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Old 09-12-2021, 12:24 PM   #1
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Alternator

Have a 98 Monaco Diplomat w/Cummins ISB275. Looking for the correct part number for the Alternator.
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Old 09-12-2021, 12:27 PM   #2
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Most likely a Duvac alternator. Get yours rebuilt or call one of the online alternator places and tell them its duvac.

Non Duvac may not work.

Quality Power comes to mind.
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Old 09-12-2021, 12:50 PM   #3
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Welcome to iRV2.

There should be a tag on the alternator with the info you need to find a replacement or a rebuilder .

There maybe info from Cummins available if you have the engine serial number .
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Old 09-12-2021, 09:21 PM   #4
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get a hold of this company. https://www.aj-elec.com/
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Old 09-13-2021, 06:15 AM   #5
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get a hold of this company. https://www.aj-elec.com/
I second AJ-Electric. He has treated very good in the past.
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Old 09-13-2021, 06:18 AM   #6
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Recently replaced my alternator. I found the best price at Quality Power High Output Alternators & High Torque Starters I decided to replace my 160 amp Leece Neville with a 200 amp Delco Remy 28SI. The install was fairly simple except on the DR you don't connect the excite wire since it is self exciting. Bought the new onewith a pully and had my old LN rebuilt and carry it as a spare.

https://www.qualitypowerauto.com/cat...lternators.htm
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Old 09-13-2021, 10:01 AM   #7
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get a hold of this company. https://www.aj-elec.com/
That's where I got my replacement alternator. Great guy to deal with!
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Old 09-13-2021, 10:12 AM   #8
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My alternator crapped out back ~7 years ago, luckily it happened while the rig was parked at home. Pulled and took it to a rebuild shop that does all the rebuilds for large equipment in our area. Done in 24 hours and cost was $185.



Also, recently installed a Bluesea ML-ACR and if my alternator goes out it will keep the chassis batteries charged from the generator. I can easily monitor voltage on my Silverleaf display.
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Old 09-13-2021, 11:18 AM   #9
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My alternator crapped out back ~7 years ago, luckily it happened while the rig was parked at home. Pulled and took it to a rebuild shop that does all the rebuilds for large equipment in our area. Done in 24 hours and cost was $185.



Also, recently installed a Bluesea ML-ACR and if my alternator goes out it will keep the chassis batteries charged from the generator. I can easily monitor voltage on my Silverleaf display.
That blue sea is rt up there with a residential fridge for most beneficial upgrades isn't it.
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Old 09-13-2021, 12:15 PM   #10
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Quote:
Originally Posted by jacwjames View Post
My alternator crapped out back ~7 years ago, luckily it happened while the rig was parked at home. Pulled and took it to a rebuild shop that does all the rebuilds for large equipment in our area. Done in 24 hours and cost was $185.



Also, recently installed a Bluesea ML-ACR and if my alternator goes out it will keep the chassis batteries charged from the generator. I can easily monitor voltage on my Silverleaf display.
Jim, I'm not familiar with that product. Is that the only function?
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Old 09-13-2021, 01:50 PM   #11
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Yes the Bluesea is up there at near the top as to upgrades.



Joe, back in May I was starting to have doubts that my Lambert LE415 maintainer was working correctly, my chassis batteries were slowly but surely starting to deplete. If I charged with a small charger they would do fine and hold a charge. I fooled with it for several weeks.

Several other Monaco owners had installed the Bluesea and after doing more research it seemed like a good idea. It actually replaced the Lambert, BIRD, and Isolation Solenoid. It will combine both battery banks if there is a charging source (generator or alternator). I simply removed the isolation solenoid and put the bluesea there. Hardest part was running a wire from the dash to the compartment for the switch.

It works automatically, or you can work it manually. I replaced the auxillary start switch with the Bluesea switch and it serves the same function or I can shut off the Bluesea and/or turn it on. The switch actually has LED lights that tell you when the battery banks are combined.

Here's a thread I did on it, https://www.irv2.com/forums/f115/win...ck-540763.html since then several other members have installed.
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