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Old 09-15-2015, 10:14 AM   #1
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2004 Detroit Diesel 500 HP Series 60 in a '04 Monaco Sig

For those with experience and or credible knowledge, what's your opinion of a Detroit Diesel 500 HP Series 60 in a '04 Monaco Sig:
1. Reliability
2. Recalls
3. Operating cost
4. POWER!!!!!! (10k towing capacity)
5. etc.


2006 Monaco Signature 45' Commander IV ISX 600
2013 Avalanche toad
And a rather large and very hairy Bear for a traveling companion
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Old 09-15-2015, 10:49 AM   #2
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Originally Posted by Just For Fun View Post
For those with experience and or credible knowledge, what's your opinion of a Detroit Diesel 500 HP Series 60 in a '04 Monaco Sig:
1. Reliability
2. Recalls
3. Operating cost
4. POWER!!!!!! (10k towing capacity)
5. etc.


Well Sir,
I don't have clue pertaining that engine in that style/year/make coach but, I do have extensive experience with that engine, and various versions of it, in all our fire trucks for several years. Two that come to mind are the 450HP and the 500HP. Both were/are outstanding, dependable, trouble free and powerful engines. As you more than likely know, fire trucks get some pretty seriously hard treatment, day and night, 24/7. Many are sitting at rest, in the "Barn" and, fired up and, within possibly as little as 20 seconds or so, are hitting 60-70 mph, depending on various situations.

But, my point is, we ran them hard and put them away wet, so to speak. On rare, really rare situations, we'd have some injectors go bad and or, a possible turbo. But, heck, both of those go bad on Cummins and CATs too.

They were smooth and powerful, based on the load presented to them. The 450 HP versions were in our regular "Fire Engines" (hose, water tank, pump, tools, equipment etc.) while the larger, 500HP versions where installed in the "Trucks" or, Ladder Trucks as referred to by civilians. Those are the ones with the big, 100' ladder and a full compliment of portable ladders, ranging from 10' to 40' extension ladders.

And those carried tons and tons of rescue equipment. But, my point is, those engines pulled those larger trucks without issue, on a hourly, daily, weekly, annually operation. As a large metropolitan Fire Department, we were totally satisfied with over all operation and performance of those Series 60 Detroits.

2004 ITASCA HORIZON 36GD, 2011 GMC Sierra 1500 4x4 Toad '08 GL 1800 Gold Wing
Retired-29.5 yrs, SDFD, Ham - KI6OND
Me, Karla and the Sophie character, (mini Schnauzer)
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Old 09-15-2015, 12:14 PM   #3
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That is a great coach and a great engine option (the Detroit 60 was a very expensive option). They also offered the Cummins ISX option over the standard Cummins ISM 500hp.

One of the regulars on here has a Signature with the Detroit 60. He will tell you about the new fuel filter and other nuances.

They are rated at 1650 ft lbs of torque and will probably pull a house. Fuel mileage will be slightly less than the smaller ISM unless pulling a heavy load. Reliability is one of the very best.
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Old 09-15-2015, 04:38 PM   #4
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I have the Series 60 in our coach. I can pull anything. I get 6.5 mpg and coach weighs 52,000 - Bluebird Wanderlodge. Your coach may get better mileage- but who is cointing?
Ernie Ekberg, Prevost Liberty XL Classic
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