Head Wear Ring 4T6780

The 4T6780 head wear ring is a wear and guiding component used in hydraulic assemblies on Caterpillar backhoe loaders. It guides the hydraulic piston or rod within the assembly, supports alignment, and separates moving metal surfaces in the working area.

This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

Fitment

The part is used with Caterpillar backhoe loaders in the following models:

• Caterpillar 414E
• Caterpillar 416B
• Caterpillar 416C
• Caterpillar 416D
• Caterpillar 416E
• Caterpillar 420D
• Caterpillar 420E
• Caterpillar 422E
• Caterpillar 424D
• Caterpillar 426C

Fitment is listed for the backhoe loader equipment type. The wear ring is installed in the hydraulic assembly as a guiding element for the piston or rod. Verify the dimensions of the existing ring and the hydraulic assembly before installation where several component configurations are used on the same machine model.

Cross-reference numbers

• 4T6780
• 4T-6780

The numbers 4T6780 and 4T-6780 identify the same part reference with different formatting. The SKU for this product is 4T6780.

Specifications

The dimensional data identifies the ring by its groove diameter, stem diameter, and groove width. The groove diameter is specified with a tolerance of ±0.001 inch, while the groove width is specified with a tolerance of ±0.003 inch. The listed dimensions and material describe the supplied head wear ring.