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Serpentine Belt part# for Cummins 400ISL?


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I am having trouble locating my serial number on my engine due to its location.  Supposedly, I need that to find the part# for the serpentine belt.  Does anyone know that part number and the best place to purchase it?

Also, some threads have suggested to replace the tensioner, anyone have a part # for that?

Any other info would be appreciated.

 

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I suggest you bite the bullet and take your coach to a "Cummins Authorize Distributor Shop"  and let them do the work.  They will be able to provide you with the serial number of your engine and the associated parts numbers.  Since you have a Dip with the rear radiator, unless you are physically fit to install the belt and and tensioner, they will do it for you.    

While there, they can perform any engine software update if you need it.  Chuck B 2004 Windsor

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Have u tried to get your Data Sheet and Build Card from REV. It will have your coach info including motor serial number.
 

https://www.monacocoach.com/technical-assistance

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Gary,

Your coach is the same as mine. Your belt is Gates: K080830HD , or Cummins: 3972263.

Your tensioner is Cummins: 3950-01-503-4617, p/n 3976831. It will cross to aftermarket if you desire.

Belt replacement is not that hard but you will probably get your arms dirty.

 You will need a long (2’) ratchet, breaker bar, or belt change tool to release tension while you slip the belt off the tensioner, and also to put it back on. Just take note of the routing. You will have to route most of the belt from above. Especially as you thread the belt around the fan blades. 
 

You will probably want to remove the engine cover rear extension in the closet. You can unscrew the closet door rail and twist the rail out without taking out the closet doors. But the doors come out pretty easily. I cut a bevel on the back side of my rail to allow the engine cover to come out without removing the rail. 
 

Just takes time and patience. Would be nice to have a helper but I never do. I’ts a good skill to have in case you throw a belt on the road. 

good luck!

Roy
 

 

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I have an 2006 Dip with ISL 400 same as yours. I changed my serp belt and tensioner . Not really that difficult.. I did have a helper. The Cummins part numbers that Roy gave you are what I installed. My biggest issue was getting the belt. I live in south central Florida and none of the dealers had a belt available in FL and they wanted $33.00 just for shipping. If you want original parts from Cummins check for close by dealers that you can drive to. I did find a Cummins parts distributor in Boca Raton, FL, they orderd the belt for me and shipping was $9.95. Took 3 weeks to get it. cummins.dieselengines.parts

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Thanks for the info guys!  I have them on order.

I really appreciate this website and all of the great info.  When I bought the coach last October, I had systems overload.  I am not sure how many different systems are onboard but the thought of maintaining them all (while still working) was a bit stressful.  With a mechanic friend helping, and all of the great input from you guys.  I think this thing is really gonna work and create some great memories!

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You are welcome Gary. We’ve had our 07 Diplomat for over 7 years now. At this point, there is hardly a system that I haven’t touched. 
There is a wealth of information on this forum and iRV2. Don’t hesitate to reach out. 
There will always be those who say leave it to the pro’s but others who will tackle anything. Figure out where you fit and there will be someone with the experience to help you.

All the best,

Roy

 

 

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3 hours ago, RNMCBR said:

You are welcome Gary. We’ve had our 07 Diplomat for over 7 years now. At this point, there is hardly a system that I haven’t touched. 
There is a wealth of information on this forum and iRV2. Don’t hesitate to reach out. 
There will always be those who say leave it to the pro’s but others who will tackle anything. Figure out where you fit and there will be someone with the experience to help you.

All the best,

Roy

 

 

Hi Roy

I see u have an 07 Dip. I hope Im not being to forward about wondering if u have the wiring diagrams for your coach.  Ive ran into several Monaco owners of the 07 that do not have them. If u would share them with this club I think I could get them to join. Right now they are with a different group.

Anyway just thought I would throw that to you.

Gary M

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Hi Gary,

What I have is a collection of wiring diagrams I got from Monaco a few years ago. They are not specific to the 07 Diplomat but cover most of the systems fairly well. They also cover multiple years and multiple models. Also, there is no organization to them and no listing of systems covered. But I have found them to be generally sufficient. I took mine to Kinkos and had them printed on 11x14 paper and spiral bound. Here is what I have. 

Roy

- Diplomat Print Index.pdf 06 diplomat chassis wd_12v.pdf 03210590 (LABEL, DSS PREP).pdf 03211525 (LABEL, EMS).pdf 03211749 (120V 50A LABEL).pdf 03213628 (LABEL, SOLAR PREP).pdf 03213970 (LABEL, FRONT RUN FUSE).pdf 03214519 (120V 50A LABEL).pdf 03214522 (LABEL, INT FUSE PANEL).pdf 16616143 (FUSE CENTER, 12V).pdf 16620962 (PANEL, 12V FRONT DISTRIBUTION).pdf 16622595rH.dwg.pdf 16622596.dwg.pdf 16623110b (REAR VISION-ALADDIN-NAV).pdf 16623156e (DIAGRAM, PASS CONSOLE SW PNL).pdf 16623276 (DIAGRAM, CONVENIENCE CENTER).pdf 16623693 (DIAGRAM, RV SANI-CON).pdf 16624138a (DIAGRAM, SHIFTER DASH PANEL).pdf 16624139d (DIAGRAM, IGNITION DASH PANEL).pdf 16624140b (DIAGRAM, PANEL DRIVER'S DASH SW).pdf 16624141a (DIAGRAM, DASH HVAC PANEL).pdf 16624142b (DIAGRAM, ENTRANCE SW PANEL).pdf 16624609a (DIAGRAM, 08 EPA DASH PANEL).pdf 16624810 (DIAGRAM, IGNITION DASH PANEL).pdf 38040005 (DIAGRAM, 120V AC).pdf 38040463 (DIAGRAM, AIR DUMP).pdf 38040501a (DIAGRAM, ICC LIGHTS).pdf 38040901 (DIAGRAM, FOG LAMPS).pdf 38040913 (DIAGRAM, BATTERY COMPARTMENT).pdf 38040915 (DIAGRAM, AUXILIARY START).pdf 38040925 (DIAGRAM, GENERATOR).pdf 38040926 (DIAGRAM, SOLAR PLANEL WIRING).pdf 38040940 (DIAGRAM, AIR HORN WIRING).pdf 38040947 (DIAGRAM, INT FUSE PNL DISC).pdf 38040964 (DIAGRAM, FURNACE).pdf 38040983a (DIAGRAM, ELECTRIC POWER STEP).pdf 38040992 (DIAGRAM, POWER MIRROR WIRING).pdf 38041026 (DIAGRAM, HOLDING TANK WIRING).pdf 38041033 (DIAGRAM, 120V 50A TRANSFER SW).pdf 38041044 (DIAGRAM, POWER AWNING).pdf 38041495 (DIAGRAM, 120V 50A DISTRIBUTION).pdf 38041496 (DIAGRAM, 120V 50A DISTRIBUTION).pdf 38050875 (DIAGRAM, WATER HEATER).pdf 38051318 (DIAGRAM, AUTO GEN START).pdf 38051619.dwg.pdf 38051620 (DIAGRAM, DASH AC).pdf 38060421 (HARNESS, FLOOR).pdf 38060424 (DIAGRAM, COOLING FAN).pdf 38060432 (DIAGRAM, OVERHEAD DEFROST FAN).pdf 38060453 F (12V FRONT DISTRIBUTION WIRING).pdf 38060702 (DIAGRAM, SUPPL BRAKE SYSTEM).pdf 38060829 (DIAGRAM, COLD WTHR PKG).pdf 38060867 (Annunciator Module Assy).pdf 38061599 (DIAGRAM, SMART WHEEL).pdf 38061895.dwg.pdf 38061931.dwg.pdf 38070256 (DIAGRAM, SPEAKER LAYOUTS).pdf 38070837 (ALADDIN CAMERA & NAV CONN).pdf 38070837a (ALADDIN CAMERA & NAV CONN).pdf 38070881.dwg.pdf 38070982 (CHART 120V 40PDQ).pdf 38070983 (CHART 12V 40PDQ).pdf 38071009 (12V LAYOUT 40SFT).pdf 38071010 (120V LAYOUT 40SFT).pdf 38071036 (12V LIGHTING 40SKQ).pdf 38071037 (CHART 120V 40SKQ).pdf 38071127.dwg.pdf 38071221 (120V LAYOUT 36PDQ).pdf 38071222 (12V LIGHTING 36PDQ).pdf 38071377 (ELECTRIC STEP COVER).pdf 38071379b (DIAGRAM, KEYLESS ENTRY).pdf 38071412.dwg.pdf 38071414.dwg.pdf 38071415.dwg.pdf 38071416.dwg.pdf 38071439.dwg.pdf 38071440 (DIAGRAM, EXHAUST BRAKE).pdf 38071440.dwg.pdf 38071456.dwg.pdf 38071497.dwg.pdf 38071516.dwg.pdf 38071518.pdf 38071519.pdf 38071520.pdf 38071521.dwg.pdf 38071532.dwg.pdf 38071533.dwg.pdf 38080176.dwg.pdf 38080188c ('08 HOME THEATER).pdf 38080286c (DIAGRAM, KVH SATELLITE COAX).pdf 38080398 (HARNESS ROUTING 40PDQ).pdf 38080401 (HARNESS ROUTING 12V 40SFT).pdf 38080415 (HARNESS ROUTING 36PDQ).pdf 38081035 (REAR VISION-NAVIGATION).pdf 38081063 (DIAGRAM, DIGITAL ROOF 50 AMP AC).pdf Kubota engine.pdf Monaco Electrical Diagram Index.docx

Hi Gary,

What I have is a collection of wiring diagrams I got from Monaco a few years ago. They are not specific to the 07 Diplomat but cover most of the systems fairly well. They also cover multiple years and multiple models. Also, there is no organization to them and no listing of systems covered. But I have found them to be generally sufficient. I took mine to Kinkos and had them printed on 11x14 paper and spiral bound. Here is what I have. 

Roy

Hmmmm....not sure the files transmitted. My copy of my response shows them Unavailable. If you can't see them, let me know and I will try something else. Or maybe, I can figure out how to post them on the forum. 

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3 minutes ago, RNMCBR said:

Hi Gary,

What I have is a collection of wiring diagrams I got from Monaco a few years ago. They are not specific to the 07 Diplomat but cover most of the systems fairly well. They also cover multiple years and multiple models. Also, there is no organization to them and no listing of systems covered. But I have found them to be generally sufficient. I took mine to Kinkos and had them printed on 11x14 paper and spiral bound. Here is what I have. 

Roy

- Diplomat Print Index.pdfUnavailable 06 diplomat chassis wd_12v.pdfUnavailable 03210590 (LABEL, DSS PREP).pdfUnavailable 03211525 (LABEL, EMS).pdfUnavailable 03211749 (120V 50A LABEL).pdfUnavailable 03213628 (LABEL, SOLAR PREP).pdfUnavailable 03213970 (LABEL, FRONT RUN FUSE).pdfUnavailable 03214519 (120V 50A LABEL).pdfUnavailable 03214522 (LABEL, INT FUSE PANEL).pdfUnavailable 16616143 (FUSE CENTER, 12V).pdfUnavailable 16620962 (PANEL, 12V FRONT DISTRIBUTION).pdfUnavailable 16622595rH.dwg.pdfUnavailable 16622596.dwg.pdfUnavailable 16623110b (REAR VISION-ALADDIN-NAV).pdfUnavailable 16623156e (DIAGRAM, PASS CONSOLE SW PNL).pdfUnavailable 16623276 (DIAGRAM, CONVENIENCE CENTER).pdfUnavailable 16623693 (DIAGRAM, RV SANI-CON).pdfUnavailable 16624138a (DIAGRAM, SHIFTER DASH PANEL).pdfUnavailable 16624139d (DIAGRAM, IGNITION DASH PANEL).pdfUnavailable 16624140b (DIAGRAM, PANEL DRIVER'S DASH SW).pdfUnavailable 16624141a (DIAGRAM, DASH HVAC PANEL).pdfUnavailable 16624142b (DIAGRAM, ENTRANCE SW PANEL).pdfUnavailable 16624609a (DIAGRAM, 08 EPA DASH PANEL).pdfUnavailable 16624810 (DIAGRAM, IGNITION DASH PANEL).pdfUnavailable 38040005 (DIAGRAM, 120V AC).pdfUnavailable 38040463 (DIAGRAM, AIR DUMP).pdfUnavailable 38040501a (DIAGRAM, ICC LIGHTS).pdfUnavailable 38040901 (DIAGRAM, FOG LAMPS).pdfUnavailable 38040913 (DIAGRAM, BATTERY COMPARTMENT).pdfUnavailable 38040915 (DIAGRAM, AUXILIARY START).pdfUnavailable 38040925 (DIAGRAM, GENERATOR).pdfUnavailable 38040926 (DIAGRAM, SOLAR PLANEL WIRING).pdfUnavailable 38040940 (DIAGRAM, AIR HORN WIRING).pdfUnavailable 38040947 (DIAGRAM, INT FUSE PNL DISC).pdfUnavailable 38040964 (DIAGRAM, FURNACE).pdfUnavailable 38040983a (DIAGRAM, ELECTRIC POWER STEP).pdfUnavailable 38040992 (DIAGRAM, POWER MIRROR WIRING).pdfUnavailable 38041026 (DIAGRAM, HOLDING TANK WIRING).pdfUnavailable 38041033 (DIAGRAM, 120V 50A TRANSFER SW).pdfUnavailable 38041044 (DIAGRAM, POWER AWNING).pdfUnavailable 38041495 (DIAGRAM, 120V 50A DISTRIBUTION).pdfUnavailable 38041496 (DIAGRAM, 120V 50A DISTRIBUTION).pdfUnavailable 38050875 (DIAGRAM, WATER HEATER).pdfUnavailable 38051318 (DIAGRAM, AUTO GEN START).pdfUnavailable 38051619.dwg.pdfUnavailable 38051620 (DIAGRAM, DASH AC).pdfUnavailable 38060421 (HARNESS, FLOOR).pdfUnavailable 38060424 (DIAGRAM, COOLING FAN).pdfUnavailable 38060432 (DIAGRAM, OVERHEAD DEFROST FAN).pdfUnavailable 38060453 F (12V FRONT DISTRIBUTION WIRING).pdfUnavailable 38060702 (DIAGRAM, SUPPL BRAKE SYSTEM).pdfUnavailable 38060829 (DIAGRAM, COLD WTHR PKG).pdfUnavailable 38060867 (Annunciator Module Assy).pdfUnavailable 38061599 (DIAGRAM, SMART WHEEL).pdfUnavailable 38061895.dwg.pdfUnavailable 38061931.dwg.pdfUnavailable 38070256 (DIAGRAM, SPEAKER LAYOUTS).pdfUnavailable 38070837 (ALADDIN CAMERA & NAV CONN).pdfUnavailable 38070837a (ALADDIN CAMERA & NAV CONN).pdfUnavailable 38070881.dwg.pdfUnavailable 38070982 (CHART 120V 40PDQ).pdfUnavailable 38070983 (CHART 12V 40PDQ).pdfUnavailable 38071009 (12V LAYOUT 40SFT).pdfUnavailable 38071010 (120V LAYOUT 40SFT).pdfUnavailable 38071036 (12V LIGHTING 40SKQ).pdfUnavailable 38071037 (CHART 120V 40SKQ).pdfUnavailable 38071127.dwg.pdfUnavailable 38071221 (120V LAYOUT 36PDQ).pdfUnavailable 38071222 (12V LIGHTING 36PDQ).pdfUnavailable 38071377 (ELECTRIC STEP COVER).pdfUnavailable 38071379b (DIAGRAM, KEYLESS ENTRY).pdfUnavailable 38071412.dwg.pdfUnavailable 38071414.dwg.pdfUnavailable 38071415.dwg.pdfUnavailable 38071416.dwg.pdfUnavailable 38071439.dwg.pdfUnavailable 38071440 (DIAGRAM, EXHAUST BRAKE).pdfUnavailable 38071440.dwg.pdfUnavailable 38071456.dwg.pdfUnavailable 38071497.dwg.pdfUnavailable 38071516.dwg.pdfUnavailable 38071518.pdfUnavailable 38071519.pdfUnavailable 38071520.pdfUnavailable 38071521.dwg.pdfUnavailable 38071532.dwg.pdfUnavailable 38071533.dwg.pdfUnavailable 38080176.dwg.pdfUnavailable 38080188c ('08 HOME THEATER).pdfUnavailable 38080286c (DIAGRAM, KVH SATELLITE COAX).pdfUnavailable 38080398 (HARNESS ROUTING 40PDQ).pdfUnavailable 38080401 (HARNESS ROUTING 12V 40SFT).pdfUnavailable 38080415 (HARNESS ROUTING 36PDQ).pdfUnavailable 38081035 (REAR VISION-NAVIGATION).pdfUnavailable 38081063 (DIAGRAM, DIGITAL ROOF 50 AMP AC).pdfUnavailable Kubota engine.pdfUnavailable Monaco Electrical Diagram Index.docxUnavailable

Hi Gary,

What I have is a collection of wiring diagrams I got from Monaco a few years ago. They are not specific to the 07 Diplomat but cover most of the systems fairly well. They also cover multiple years and multiple models. Also, there is no organization to them and no listing of systems covered. But I have found them to be generally sufficient. I took mine to Kinkos and had them printed on 11x14 paper and spiral bound. Here is what I have. 

Roy

Hmmmm....not sure the files transmitted. My copy of my response shows them Unavailable. If you can't see them, let me know and I will try something else. Or maybe, I can figure out how to post them on the forum. 

Wow! Thats how I got mine from Rev. Still organizing my 250 diagrams for my Knight.

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Yup they do. I usually just email to Frank McElroy. Then he uploads them.

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5 minutes ago, NGADawgs said:

Wow...Thanks Roy.  All I had was the main chassis diagram, I didn't know the others existed.  I am sure these will come in handy for sure.

Woah!! Don’t forget me. 😎 I asked Roy if he had them.

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Roy, To upload the files, Click on the link below and select the option - Submit a File.

https://www.monacoers.org/files/category/24-wiring-diagrams/

Give it a title and then when it asks to upload the file, just select all your files and it will upload at one time.  Don't worry about the picture page or other info.  Hit submit and I'll handle the rest.

Alternatively, If you have all these files in a file shared directory, send me an email with a link and I can handle the upload for you.

If all these files are applicable for the 2007 Diplomat, I can also combine them into one pdf file so folks don't have to open and print each page.  This would give folks the option to have all the files in one document.

I already checked and we don't have a wiring diagram set for a 2007 Diplomat in the download files so the info you provided will be great for helping others.

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11 hours ago, Frank McElroy said:

Roy, To upload the files, Click on the link below and select the option - Submit a File.

https://www.monacoers.org/files/category/24-wiring-diagrams/

Give it a title and then when it asks to upload the file, just select all your files and it will upload at one time.  Don't worry about the picture page or other info.  Hit submit and I'll handle the rest.

Alternatively, If you have all these files in a file shared directory, send me an email with a link and I can handle the upload for you.

If all these files are applicable for the 2007 Diplomat, I can also combine them into one pdf file so folks don't have to open and print each page.  This would give folks the option to have all the files in one document.

I already checked and we don't have a wiring diagram set for a 2007 Diplomat in the download files so the info you provided will be great for helping others.

Thanks Frank, 

It will probably take me a couple days to get to it but I’ll upload them as you described.

Riy

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I just uploaded the 07 Diplomat wiring diagrams. They should be available once the moderator approves them.

Roy

Frank,

I just noticed that there are a set of wiring diagrams already uploaded for the 07 Knight. However, when I tried to download them, Mcafee said that they are dangerous and possibly infected with a virus/spyware. I don't know whether this has something to do with how the files are handled by the web site or whether Mcafee is correct. Any idea how I can get someone to look into this? thanks

Roy

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Roy, Thanks for uploading these files.  I added in the description how folks can download individual files or if they want to, I combined all the 95 PDF files into a single 117 page PDF document so all these files can be in a single document download.

Thanks again for the contribution.

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