1B3931 Tapered Roller Bearings for Caterpillar Equipment

The 1B3931 is a tapered roller bearing used in Caterpillar equipment, including articulated trucks, motor graders, track-type tractors, and wheel loaders. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The available application data identifies the bearing by SKU 1B3931 and lists the Caterpillar machine models below. The fitment information is grouped by equipment type to distinguish the listed truck, grader, tractor, and loader applications.

Fitment

• Articulated trucks:
  • D25C
  • D30C
  • D350C
  • D35C
  • D35HP
  • D400
• Motor graders:
  • 120
  • 120B
  • 12E
  • 12F
  • 140B
  • 14E
• Track-type tractors:
  • D7G
  • D7G2
• Wheel loaders:
  • 950B
  • 950B/950E

The listed fitment applies to the Caterpillar models specified above. Model identification should be checked against the machine’s parts documentation before installation, particularly where the same equipment series is represented by more than one model designation.

The part number supplied for this bearing is 1B3931. No additional equipment-manufacturer or supplier cross-reference numbers are provided in the available product data.

Specifications

The recorded dimensional data for SKU 1B3931 is 18 cm in length, 4 cm in width, and 18 cm in depth. The listed weight is 2.5 lb. No further information about bearing material, bore diameter, outside diameter, roller dimensions, clearance, seal arrangement, thread specification, or installation position is included in the available data.

The product data does not specify whether additional bearing components, seals, races, fasteners, or installation hardware are included. The item is identified by the single SKU 1B3931, and the supplied information does not define a kit configuration.