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Old 02-19-2020, 12:25 PM   #1
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Join Date: Feb 2020
Posts: 5
opinions on C7 Cat engine + MD3060 transmission?

Any opinions or experience on this engine/transmission combo?

MD 3060 transmission, C7 cat. turbo 300 hp engine

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Old 02-19-2020, 12:50 PM   #2
Bus Crazy
Join Date: May 2014
Location: West Ohio
Posts: 2,338
Year: 1984
Coachwork: Bluebird
Chassis: International 1753
Engine: 6.9 International
Rated Cap: 65
Personally, I'd pass on it.

None of the ones I've worked on have struck me as overly reliable or well designed engines.

You didn't mention the price, year, or the mileage on it. But that honestly doesn't matter to me, I'd look for something else.
My build: The Silver Bullet
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Old 02-19-2020, 01:22 PM   #3
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Join Date: May 2016
Location: Eastern WA
Posts: 6,398
Year: 2002
Coachwork: Bluebird
Chassis: All American RE (A3RE)
Engine: Cummins ISC (8.3)
Rated Cap: 72
There is a good video on "bulletproof your C7" on YouTube.

They definitely have some issues but they can be addressed to some extent.

Watch the video. The gent who made it knows far more about CAT engines than I ever will.

The transmission is one of the best that you will find in a school bus.
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Old 02-19-2020, 01:27 PM   #4
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Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 23,237
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
I like my 3126. The C7 is built from the same block but has a few problems unique to it. Watch Adept Ape's video and check out the RV forums for lots of real world commentary on C7's.
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Old 02-19-2020, 01:39 PM   #5
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Join Date: Jun 2015
Location: Wisconsin
Posts: 1,155
Year: 2001
Coachwork: Bluebird
Chassis: All American
Engine: 8.3 Cummins ISC
Rated Cap: 75
Can't wait til 5 years down the road when the C7 will be considered one of the "good" engines. Its downright decent compared to engines that suceeded it.
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