3G9891 Pump Group-Gear for Caterpillar

3G9891 is a pump group-gear used in hydraulic pump applications on Caterpillar equipment. The part is intended for Caterpillar engines and machines, including Caterpillar load, haul and dump equipment and wheel-type loaders. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part name identifies the assembly as a gear pump group. The supplied identification is based on the Caterpillar equipment application and the 3G9891 part number. Fitment should be confirmed against the machine model, serial number and the part number installed on the equipment before ordering or installation.

Fitment

The pump group-gear is listed for the following Caterpillar equipment models and machine series:

• Caterpillar 3116
• Caterpillar 3126
• Caterpillar 3304
• Caterpillar 3306
• Caterpillar R1300
• Caterpillar R1300G
• Caterpillar R1300G II
• Caterpillar 936
• Caterpillar 936E
• Caterpillar 936F

The listed applications cover Caterpillar engine-related equipment, load-haul-dump equipment and wheel-type loader equipment. The available product data does not specify a separate machine configuration, production year or serial-number range for each model. For this reason, compatibility within a listed model should be checked using the complete equipment identification.

Cross-reference numbers

The pump group-gear is identified by the following part number:

• Caterpillar equipment part number: 3G9891

3G9891 is also the CTP product SKU for this pump group-gear. The available data does not provide additional supplier numbers or a separate replacement number. The Caterpillar reference 3G9891 should be compared with the number on the removed part and the equipment parts documentation.

Specifications

The stated dimensions and weight describe the supplied pump group-gear as provided in the product data. No additional information is specified for gear dimensions, shaft configuration, mounting pattern, port arrangement, thread type, rotation direction, seal material or included installation components.

Before installation, compare the assembly dimensions, connection points and identification number with the removed hydraulic pump group-gear. The 3G9891 application is listed for the Caterpillar 3116, 3126, 3304, 3306, R1300, R1300G, R1300G II, 936, 936E and 936F models; equipment serial-number compatibility is not specified in the available data.