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Engines using 503-0478
2Cummins/Onan RDJCCummins/Onan RDJF
Generator sets using 503-0478
5Cummins/Onan MDJFCummins/Onan 12.5RDJC-57RCummins/Onan 15.0RDJC-4RCummins/Onan 15.0RDJC-5DRCummins/Onan 17.5RDJF-3CR
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