5S7878 Ring for Caterpillar Equipment

5S7878 is an internal axial retaining ring used in transmission seal ring applications on Caterpillar equipment. It is listed for Caterpillar articulated dump trucks, off-highway trucks, and engine-machine applications, including the models and engine series specified below. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified by SKU 5S7878 and is also designated as 5S-7878. The supplied application data covers several Caterpillar machine models and engine series; the exact installation position depends on the equipment configuration and the relevant transmission or engine assembly.

Fitment

• Caterpillar articulated dump trucks
• Caterpillar off-highway trucks
• Caterpillar engine-machine applications

Compatible Caterpillar models and engine series

• Caterpillar 735
• Caterpillar 740
• Caterpillar 3304
• Caterpillar 3306
• Caterpillar 3406E
• Caterpillar 3524B
• Caterpillar C15
• Caterpillar C175 series
• Caterpillar 797

Cross-reference numbers

Specifications

The dimensional data for this ring is an inner diameter of 4.602 inches, an outside diameter of 5.102 inches, and a thickness of 0.072 inches. The ring is specified as steel with a spiral construction and an internal axial retaining-ring type. The listed weight is 0.2 lb, with recorded package or part dimensions of 15.24 cm in length, 20.32 cm in width, and 2.54 cm in depth.

Application information for Caterpillar 735, 740, and 797 machines is included together with Caterpillar 3304, 3306, 3406E, 3524B, C15, and C175 engine-series applications. The equipment brand referenced in the fitment data is Caterpillar; CTP is the manufacturer of this aftermarket part.