Help identifying this Cat. - Diesel Truck Forum -
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post #1 of 4 (permalink) Old 06-15-2016, 09:33 PM Thread Starter
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Help identifying this Cat.

I have purchased a 1990 Pete with a mechanical Cat 3406?. The original serial number on block has been ground off and restamped with new one on drivers side and its ( 7X007941 ). Your help is highly appreciated. Thanks to all
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post #2 of 4 (permalink) Old 06-15-2016, 10:59 PM
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It should actually be 7xc, that is the prefix for a reman engine from cat, without the original reference serial number or arrangement it won't be easy to identify.

You can call a dealer and get the original engine number for what was installed from the factory, that may get you close.


79 KW W900A 3406B, Garrett GT55 turbo, RTO12513,
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injectors, RTO12513, 4.33 eaton DS380s

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post #3 of 4 (permalink) Old 06-19-2016, 04:56 AM
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Last 6 of the s/n and I can tell ya what came from factory
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post #4 of 4 (permalink) Old 06-19-2016, 11:43 AM Thread Starter
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thanks to all i will post s/n as soon as i get to the truck.
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