1971 CATERPILLAR D8H DOZER.ALL I CAN SAY IS HAVE OWNED IT FOR 3 YEARS\' AND IT NEVER GAVE US ANY PROBLEMS\' WE ONLY WORKED IT IN PUSHING TOPSOIL AND NEVER NEED TO RUN IT MORE THAN 6 HRS\' A DAY. BECAUSE ARE SCREENING PLANT COULDN\'T KEEP UP WITH IT. ANYWAY IF YOUR LOOKING FOR A GOOD D8 THAT YOU ONLY NEED AS A BACKUP LIKE WE USED IT MOSTLY FOR THEN THIS IS WHAT YOUR LOOKING FOR.AND LIKE I SAID JUST IN PARTS SHES\' WORTH 20,000 EASY+++