7S8578 Shaft Planet

7S8578 is a shaft planet used in final drive and swing components on Caterpillar heavy equipment. The part fits Caterpillar wheel scrapers and wheel tractors listed below. It is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The product identification supplied for this part is 7S8578 Shaft Planet. The equipment brand associated with the listed applications is Caterpillar. The available application data covers two Caterpillar machine groups: wheel scrapers and wheel tractors.

Fitment

• Wheel Scraper Caterpillar 657B
• Wheel Scraper Caterpillar 657E
• Wheel Scraper Caterpillar 657G
• Wheel Tractor Caterpillar 631C
• Wheel Tractor Caterpillar 631E
• Wheel Tractor Caterpillar 631G
• Wheel Tractor Caterpillar 633C
• Wheel Tractor Caterpillar 633D
• Wheel Tractor Caterpillar 633E II
• Wheel Tractor Caterpillar 637D
• Wheel Tractor Caterpillar 637E
• Wheel Tractor Caterpillar 637G

Application information identifies the part for the final drive and swing components category. The listed fitment includes Caterpillar 657B, 657E, and 657G wheel scrapers, as well as Caterpillar 631C, 631E, 631G, 633C, 633D, 633E II, 637D, 637E, and 637G wheel tractors. Compatibility should be checked against the machine model and the part number before installation.

Specifications

The specified dimensions are 11 cm in length, 5.5 cm in width, and 5.5 cm in depth. The listed weight is 0.9 lb. No material, thread specification, mounting position, included components, or additional cross-reference numbers are provided for SKU 7S8578.