07-04-2022, 12:39 PM
If the ad is accurate the engine has been replaced, I believe the first 6-cylinder Cummins to leave the Newell factory was an ISX much later than 1981.
Jon & Chris Everton
1986 40' Dog House #86
450 hp ISM 5 spd ZF Ecomat 2
2004 Range Rover L322 Toad