One new replacement exhaust manifold that fits the following Caterpillar models and machines: Excavator Models: 235, 235B, 235C, 235D Wheel Scraper Models: 621, 627, 627B, 627E Motor Grader Model: 14G Crawler Tractor/Dozer Models: D6D, D6H, D7G, D7H Wheel Tractor Models: 815B, 816B Wheel Loader Model: 980B Engine Model: 3306 Replaces Part Number: 8S7717 Models This part fits: 14G, 14G, 235, 235 B, 235 C, 235 D, 235B, 235C, 235D, 3306, 621, 627, 627 B, 627 E, 627B, 627E, 815 B, 815B, 816 B, 816B, 980 B, 980B, D6D, D6H, D7G, D7H Reference numbers: 8S7717, 8S7717-A