What is 6NZ?

nockamichi · Dec 8, 2020

Winter Fox said: ↑

well you just sad it yourself. replace it with C-15 6NZ engine and you’ll be set for very long time. believe me I know cuz I have one in my truck. its got 1.5 million miles on it, and those are original miles. did not need overhaul yet. but im planning to do one soon cuz these engines are very well worth it. for durability and longevity CAT C-15 6NZ engine is god of heavy duty
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Ericfrancs101 · Jul 16, 2023

Mr. Haney said: ↑

The 6NZ is basically a 3406E with some minor upgrades. The electronic are different to allow the engine to communicate with other features that could be installed as options to the truck, AutoShift tranny is one that comes to mind. The other big difference is how the gaskets seal the engine and the reason the C-15/C-16's don't have the oil leaks the earlier 3406E's do. The block is a sculpted block to reduce weight and increase strength.
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Very helpful thank you

little cat 500 · Jul 17, 2023

over rated motor

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