2M1156 Cylindrical Roller Bearings for Caterpillar

2M1156 is an inner race and roller assembly used in cylindrical roller bearing applications on Caterpillar equipment. The part is used with Caterpillar engines and machines, including Caterpillar track-type tractors. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The assembly is identified by the Caterpillar equipment part number 2M1156 and is listed for the equipment models and engine series specified below. The application should be confirmed by comparing the machine model, existing bearing assembly, and applicable part number before installation.

Fitment

• Caterpillar 3408 engine and machine applications
• Caterpillar 3408C engine and machine applications
• Caterpillar 3408E engine and machine applications
• Caterpillar C18 engine and machine applications
• Caterpillar D9R track-type tractor applications
• Caterpillar D9T track-type tractor applications

The listed applications cover Caterpillar engine-machine equipment and Caterpillar track-type tractor equipment. The part is specified for use as the inner race and roller assembly within the bearing arrangement of the compatible equipment.

Cross-reference numbers

Numbers 2M1156, MU1934V, and MU1934L are listed as interchangeable identification numbers for this bearing assembly. The 2M1156 number is used both as the product SKU and as the Caterpillar equipment part number referenced for the application.

Specifications

The supplied dimensions are 22 cm in length, 4.7 cm in width, and 22 cm in depth. The stated weight is 5 lb. The component is identified as the inner race and roller assembly; the available product data does not specify additional bearing components, seals, mounting hardware, or a complete bearing kit as included with the part.