4587939 Bearing Kit 0.50-mm US for Caterpillar 3054 and 3056 Engines

4587939 is an engine bearing kit with a 0.50-mm undersize designation for equipment manufactured by Caterpillar. The kit is used with Caterpillar 3054 and 3056 engine applications. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified as a bearing kit and is supplied under the Caterpillar equipment part number 4587939. The “0.50-mm US” designation is part of the product identification and specifies the bearing size stated for this kit.

Fitment

• Caterpillar 3054 engines
• Caterpillar 3056 engines

The available application data identifies the 3054 and 3056 engine series. Specific machine model assignments are not provided in the source information.

Cross-reference numbers

• 4587939
• 458-7939
• CA4587939
• 9D-3706
• Caterpillar 4587939 KIT-BEARING

These numbers identify the same bearing-kit reference in the available product data. The number 4587939 is the SKU and the primary reference used for this product.

Specifications

Kit contents

The kit contains twelve listed bearing components in total: six units identified as 361-6881 and six units identified as 361-6888. The available data does not specify the individual installation position of each component within the engine.

Dimensions and weight

The source data contains two weight values: 1 pound in the general specifications and 1.5 pounds in the dimensional information. Both values are retained as provided because the available data does not identify whether they refer to different measurement conditions or packaging configurations.