0990172 Ring B/up Transmission Seal Ring

0990172 is a transmission seal ring used in Caterpillar excavator equipment. The part is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is listed for the Caterpillar excavator models and machine series specified below. The model designations are retained as supplied for equipment identification and fitment verification.

Fitment

• Caterpillar 311 excavator
• Caterpillar 311B excavator
• Caterpillar 311C excavator
• Caterpillar 311D LRR excavator
• Caterpillar 311F LRR excavator
• Caterpillar 312 excavator
• Caterpillar 312B excavator
• Caterpillar 312B L excavator
• Caterpillar 312C L excavator
• Caterpillar 312D excavator
• Caterpillar 312D L excavator
• Caterpillar 312D2 excavator
• Caterpillar 312D2 GC excavator
• Caterpillar 312D2 L excavator
• Caterpillar 312E excavator
• Caterpillar 312E L excavator
• Caterpillar 313B excavator
• Caterpillar 313D excavator
• Caterpillar 313D2 excavator
• Caterpillar 314C excavator
• Caterpillar 314D CR excavator
• Caterpillar 314D LCR excavator
• Caterpillar 314E CR excavator
• Caterpillar 314E LCR excavator
• Caterpillar E110B excavator
• Caterpillar E120B excavator

Fitment is specified for the Caterpillar excavator models listed above. Before installation, the part number and the machine model designation should be checked against the service parts documentation for the particular equipment.

Specifications

The supplied data identifies the component by SKU 0990172 and describes it as a transmission seal ring for the listed Caterpillar excavators. No additional cross-reference numbers, material specification, thread data, installation position, or kit contents are provided for this part.