1287855 Gear for Caterpillar Backhoe Loaders

Gear with SKU 1287855 for Caterpillar backhoe loader equipment. The part is used on the transmission or drive-related assemblies of the listed Caterpillar backhoe loader models; the exact installation position is not specified in the available data.

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

The part is identified by the Caterpillar-style number 128-7855 and is listed for several Caterpillar backhoe loader models from the 416, 420, 424, 426, 428, 430, 432 and 436 series. The model list below includes only the applications stated for this part.

Fitment

• Caterpillar 416C backhoe loader
• Caterpillar 416D backhoe loader
• Caterpillar 420D backhoe loader
• Caterpillar 424D backhoe loader
• Caterpillar 426C backhoe loader
• Caterpillar 428C backhoe loader
• Caterpillar 428D backhoe loader
• Caterpillar 430D backhoe loader
• Caterpillar 432D backhoe loader
• Caterpillar 436C backhoe loader

Fitment should be checked against the machine model and the number on the removed part before installation. The available product data does not identify a serial-number range, machine configuration, assembly position, or quantity of gears used in each application.

Cross-reference numbers

• 128-7855 — Caterpillar-style part number shown for the gear
• 1287855 — SKU and number format without the hyphen

The available information does not provide additional supplier numbers or other equipment-manufacturer cross-reference numbers. The two number formats above identify the same listed product reference; they are not separate components.

Specifications

The dimensions listed above are the recorded dimensions for this product: 5.8 cm in length, 4.9 cm in width and 6.1 cm in depth. The available data does not state whether these measurements refer to the complete gear envelope, a packaging reference, or a particular measurement orientation. For this reason, the dimensions should be used together with the part number and the removed component when verifying fitment.

No additional information is provided for tooth count, bore diameter, keyway dimensions, surface treatment, material grade, gear ratio, mounting hardware, seal compatibility, or the specific Caterpillar assembly in which the gear is installed. These parameters are therefore not included as confirmed specifications for SKU 1287855.