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02-18-2016, 09:15 AM
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#15
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Senior Member
Join Date: Jan 2013
Location: Delaware
Posts: 314
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Quote:
Originally Posted by Randyman1
I had my starter replaced with the Denso 428000-4440. According to the cross reference that part number fits the ISX, don't know about the 4430. It works fantastic, I would highly recommend changing out yours to one of these. Bought it on Amazon for $324.95 free shipping. Randy
Zackman, I just double checked that part number and it shows the 4440 to be the correct one for your ISX like mine, the 4430 shows to be for certain year M11 and certain year Detroits but no mention of the ISX. I can assure you that the 4440 is the right one and is starting my ISX just fine.
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Randyman1,
Denso part #4440 was what I thought correctly applied to my coach's Cummins ISX 525 HP, but it did not fit. I ended up having the service center install a DelcoRemy Gear Reduction Heavy Duty Starter (looks exactly what I had on the engine before except the solenoid switch was bypassed on the starter removed probably because it was defective). The new starter turns the engine right over without any hesitation as it did before.
So far, I am satisfied. I now remove the starting batteries and have them on maintainers at the house when I know I will be down for a bit. I just reconnect when I run the coach on the road for its exercise twice monthly.
__________________
ZackMan & Wife
2007 Monaco Executive
2004 Ford F-250 4X4 
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02-18-2016, 01:34 PM
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#16
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Senior Member
Monaco Owners Club
Join Date: Sep 2013
Location: Nebraska
Posts: 799
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Zackman I wonder if your Denso starter was boxed wrong? I and several others on here with your same engine have installed the 4440 with no problem. The good news is that your engine spins over faster regardless of which starter was used.
__________________
Randy & Kathy-n-Auggie
07 HR Navigator 43PBQ, 525hp Cummins ISX, 17 Ford Supercrew Ecoboost King Ranch 4x4
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02-18-2016, 03:59 PM
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#17
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Senior Member
Join Date: Jan 2013
Location: Delaware
Posts: 314
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Quote:
Originally Posted by Randyman1
Zackman I wonder if your Denso starter was boxed wrong? I and several others on here with your same engine have installed the 4440 with no problem. The good news is that your engine spins over faster regardless of which starter was used.
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That may have been a possibility and I am relieved that the engine quickly turns over now. I sure do not want to get stranded, especially out in the middle of nowhere, because of a starter.
__________________
ZackMan & Wife
2007 Monaco Executive
2004 Ford F-250 4X4
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02-18-2016, 05:39 PM
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#18
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Member
Monaco Owners Club
Join Date: Oct 2013
Location: Seymour, Tennessee
Posts: 78
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I'm trying to order a starter for my Cummins 600 but am now confused as to which Denso part number is the correct part number to order 4440 or 4430? It is going in an 07 Signature with a Cummins 600 engine.
__________________
Doug & Nina Patton & Bleu our Ragdoll cat.
2011 Winnebago Tour & 2008 Ford Explorer Sport Trac
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02-18-2016, 05:43 PM
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#19
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Member
Monaco Owners Club
Join Date: Oct 2013
Location: Seymour, Tennessee
Posts: 78
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Where did you purchase the Denso starter? Seems to be lots of confusion on the posts as to the correct Denso part number. You sure 428000-4440 is the correct part for a ISX Cummins 600 engine.
Thanks,
Doug
__________________
Doug & Nina Patton & Bleu our Ragdoll cat.
2011 Winnebago Tour & 2008 Ford Explorer Sport Trac
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02-18-2016, 05:56 PM
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#20
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Senior Member
Join Date: Apr 2008
Location: Freeport, ME
Posts: 4,707
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Use a flashlight and look at the current starter and see if the solenoid is on the top or the bottom?
__________________
Mike Canter
"Gunner" USN Retired, Airdale
2004 Monaco Signature 44' Conquest. Detroit 60
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02-18-2016, 10:34 PM
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#21
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Senior Member
Monaco Owners Club
Join Date: Sep 2013
Location: Nebraska
Posts: 799
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Quote:
Originally Posted by Doug Patton
Where did you purchase the Denso starter? Seems to be lots of confusion on the posts as to the correct Denso part number. You sure 428000-4440 is the correct part for a ISX Cummins 600 engine.
Thanks,
Doug
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See post #11 in this thread Doug. I would think it would be the same. Only difference in the ISX horsepower is done with turbo and injection and possibly the head, block is the same and that is what the starter bolts on to.
__________________
Randy & Kathy-n-Auggie
07 HR Navigator 43PBQ, 525hp Cummins ISX, 17 Ford Supercrew Ecoboost King Ranch 4x4
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02-18-2016, 10:42 PM
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#22
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Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
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Quote:
Originally Posted by Mike Canter
Looking at the pictures as I have attached below it appears that the 4430 is designed to mount with the solenoid on top and the 4440 with the solenoid on the bottom
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And some of the Denso's have the mounting plate made so they can be rotated to fit although you do need to make sure the vent holes are toward the bottom.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
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08-18-2023, 08:32 AM
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#23
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Member
Country Coach Owners Club Damon Owners Club
Join Date: Dec 2018
Location: Puyallup WA
Posts: 68
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Quote:
Originally Posted by Mike Canter
Looking at the pictures as I have attached below it appears that the 4430 is designed to mount with the solenoid on top and the 4440 with the solenoid on the bottom
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Hi Mike,
Could you tell me where you got this image of the differences in the starters. I cannot see on the top clearly the website. I need to find the correct starter for my 2005 ISX 600 but according to Cummins the cummins number 5367754 is for 11 TPI and the denso 428000-4440 is for 10 Tooth.. but i can barely read on your picture a note about 10 tooth and 112/12 tooth. I cant make out what it says
Thanks
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08-18-2023, 08:35 AM
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#24
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Senior Member
Newmar Owners Club
Join Date: Oct 2009
Posts: 10,310
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Quote:
Originally Posted by dogpaddle
Hi Mike,
Could you tell me where you got this image of the differences in the starters. I cannot see on the top clearly the website. I need to find the correct starter for my 2005 ISX 600 but according to Cummins the cummins number 5367754 is for 11 TPI and the denso 428000-4440 is for 10 Tooth.. but i can barely read on your picture a note about 10 tooth and 112/12 tooth. I cant make out what it says
Thanks
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This thread ....., if you look is from 2016, and Mike has not been on here for 1.5 yrs.
Best to start a new thread and ask.....
__________________
2012 Essex 4544 2011 Jeep JK, M&G Braking, 2014 MTI 27' Hog Hauler, Wireless brake control, 2006 Ultra & 1989 Springer, 2003 Harley-Davidson
FLHR Road King Anniversary
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