7Y1431 Gear Planetary — 7Y1431

The 7Y1431 Gear Planetary is a planetary gear component used in final drive and swing assemblies of Caterpillar equipment. It is used on Caterpillar engines, excavators, and related machine applications, including the Caterpillar 318B, 318B N, and 318C excavator models, as well as equipment powered by the Caterpillar 3046, 3066, 3116, 3126, C4.2, C6, and C6.4 engines.

This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts). The part is identified by SKU 7Y1431.

Fitment

The part is listed for the following Caterpillar equipment and engine applications:

• Caterpillar 318B excavator
• Caterpillar 318B N excavator
• Caterpillar 318C excavator
• Caterpillar 3046 engine applications
• Caterpillar 3066 engine applications
• Caterpillar 3116 engine applications
• Caterpillar 3126 engine applications
• Caterpillar C4.2 engine applications
• Caterpillar C6 engine applications
• Caterpillar C6.4 engine applications

The source application data identifies the part for Caterpillar engine-machine and Caterpillar excavator equipment. Compatibility should be checked against the machine serial number and the existing planetary gear assembly before installation.

Cross-reference numbers

• 7Y1431 — Caterpillar equipment manufacturer part number
• 7Y-1431 — Caterpillar part-number format used for the same identification
• 7Y1431 — CTP aftermarket part number

The supplied part-number data identifies 7Y1431 as the equipment manufacturer reference and as the CTP replacement identification. The hyphenated form 7Y-1431 is also used in product and parts listings for the same number.

Specifications