I found a cat motor and pony at my local junk yard today and need some help identifing it. The serial number is 8T 6317. its a 6 cyl. the guys at the yard said it came out of a grader that was drove to the yard to be scrapped. after they cut the grader to pieces the motor and tranny i would say were left and put in the cast pile. I have a 5R D6 cat that these pony motors look identical. Any help would be great as far as parts interchanging between the two machines. Thanks Guys!!