1U1770 Ring for Caterpillar Equipment

The 1U1770 is a transmission seal ring used on Caterpillar equipment, including tracked bulldozers, off-road dump trucks, excavators, and wheel loaders. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is listed as a ring for transmission sealing applications. The supplied dimensions and material data identify the ring by its internal diameter, cross-section measurements, and urethane rubber construction.

Fitment

The ring is used on the following Caterpillar equipment models and series:

• Tracked bulldozers: 10C, 10, 10S, 10U, 11, 11SU, 11U, D10, D11N, D11R
• Off-road dump trucks: 776C, 776D, 777, 777C, 777D, 777E, 777F, 777G
• Excavators: 5130, 5130B
• Wheel loaders: 994

Fitment is specified for the model groups listed above. Equipment configuration and production version should be checked against the part number before installation.

Cross-reference numbers

• 1U1770
• 1U-1770

The identifiers 1U1770 and 1U-1770 refer to the same part number format used for this ring.

Specifications

The ring dimensions are provided in both inch and centimetre units where stated in the part data. The inner diameter is 10.09 inches, while the cross-section is specified by a width of 0.06 inches and a height of 0.17 inches. The listed shipping or product dimensions are 30.48 cm in length, 38.1 cm in width, and 2.54 cm in depth.