C-7 Cat Engines

[luvrbus]

www.govliquidation.com  lot number 10453 , 20 -C7 -330 hp for sale these are fast response vehicle engines so they will have 5 kw belt driven generator plus they have the 296-0077 software you can make those babies hum just passing it on if you need a engine your tax dollar paid 36,000 each lol 

good luck

[Brassman]

Thanks for the link. I read on another forum that the C-7 is a 150,000 mile engine (though I find that hard to believe.) I'd probably buy one for $5,000, or less, but it's on the wrong side of the country.

[usbusin]

The C7 predecessor the 3126b is a 500,000 mile engine.  I would think the C7 is also.

I have 125,000 on mine.  I hope I have more than 25,000 left!!

Zero problems in 10 years.  It just keeps purring as all Cats do, and burning diesel fuel at the rate of 10 mpg.

[luvrbus]

The C-7 will last around 750,000 miles they will turn 2600 rpm all day and night and use 20 gals of fuel a hr not bad on fuel the ones for sale are non EPA engines fwiw

good luck

[Oonrahnjay]

The C-7 will last around 750,000 miles they will turn 2600 rpm all day and night and use 20 gals of fuel a hr not bad on fuel the ones for sale are non EPA engines fwiw

good luck 

    Are they "electronic" engines?

[luvrbus]

Yes they are Bruce but the Cat electronic system is not as problematic as a DDEC   IMO 


good luck

[Oonrahnjay]

    Thanks for that info.  It's helpful.

[TomC]

It's really strange what Caterpillar did for smog devices.  Since 2002, all Cat truck/bus engines had catalytic converters on them.  Then in 2007 when everyone else went to a catalytic converter with DPF (Diesel Particulate Filter), Cat eliminated their catalytic converter, but added the DPF with EGR return exhaust pipe (an extra exhaust pipe leading from the "clean" side of the DPF back to the engine for EGR [Exhaust Gas Recirculation]). To compensate for the removal of the catalytic converter Cat made a combustion chamber after the turbo with a spark plug.  When the DPF had to be regenerated to burn the soot down to ash, Cat injected extra fuel into that after turbo combustion chamber and lit it off with the spark plug.  This regeneration process worked very well on a test stand in their labs.  But get that engine out onto the highway and try to regenerate when the truck is bouncing down the highway-the flame had a hard time igniting and/or staying lit.  Hence a tremendous amounts of regeneration problems resulting in trucks being towed to the shop and interruption of their freight hauling trip.  This is the main reason Cat got out of the on road truck engine business-it almost bankrupted the company.
Now their "new" CT13 in their new Cat on highway construction truck-the truck is an International Paystar with a Caterpillar designed hood, and the CT13 is the International MaxForce (the MF engine as we call it) 13 engine painted Caterpillar yellow.  Even when Cat starts to use their own C15 in their trucks sometime next year, it will only be the block and head they are providing so International can install their infamous fuel injection and enhanced exhaust recirculation system (all trucks in 2007 had 25% EGR.  In 2010, the EGR was reduced to 10-15% in engines using DEF [Diesel Exhaust Fluid {Urea}]. But International with their enhanced EGR went up to 40% EGR, but no DEF). Rumor is that International/Caterpillar has realized that while their engines are clean burning, they still aren't clean enough to meet 2010 standards.  So in 2012, they are coming out with a solid Urea spin on filter (will still need some sort of water to desolve it).  When this happens I believe that will be when the C15 will be reintroduced-but once again only in their International/Caterpillar trucks.
As long as you have a pre 2007 Caterpillar engine, you'll be just fine.  But-stay away from the after 2007 engines-they are problematic.  Good Luck, TomC