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Senior Contributor

8.3 Cummins block heater

Anybody ever put one in. It's in a 94 F800 grain truck. Looks kind I hard to get to, back near the fire wall. How much antifreeze should I be prepaired to replace.
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Senior Contributor

Re: 8.3 Cummins block heater

i have never replaced one, but I would imagine it would be a complete drain and refill of the cooling system.  Patrick

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Senior Contributor

Re: 8.3 Cummins block heater

Easy to get to from in the cab. Lost about 3 gallon of antifreeze. It was kind if corroded. so took about an hour and a half. I'm sure someone who knew what he was doing, and was prepaired,could do it in much less.
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