Komatsu Cylinder Block 6150-21-1103

The Komatsu Cylinder Block 6150-21-1103 is identified in the supplied parts catalog as a CYLINDER BLOCK & COMPONENTS for specific Komatsu diesel engine and equipment configurations. Cataloged engine models include 6D125-1, S6D125E-2 & SA6D125E-2, and S6D125-1. Listed machine applications include D50A-17, D50P, PL-17, D53A-17, D53P-17, and D58P-1. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is 6150-21-1103 used for?

Part number 6150-21-1103 is cataloged as a Cylinder Block. It appears in the CYLINDER BLOCK & COMPONENTS parts group. The correct selection depends on the engine model, machine model, and the applicable serial-number range.

Compatible engine models

6D125-1, S6D125E-2 & SA6D125E-2, S6D125-1

Engine models with serial-number ranges

6D125-1 (Build 10A) ? 10001-Up | S6D125E-2 & SA6D125E-2 (Build 10B) ? 61779-Up | S6D125-1 (Build 10D) ? Not Provided

Application models without serial numbers

D50A-17, D50A-17, D50P, PL-17, D53A-17, D53P-17, D58P-1, D58P-1B, D60A-8 / P-8 / S-8, D60A-8A, D65A-8, D65E-8, D65P-8 / S-8, D65E-12, D68E-1, D68P-1, D70-LE, D70LE-12, GD605A-3, GD605A-3US, GD623A-1, GD625A-1, GD625A-1C, GD655A-3, D58E-1, D58E-1B, D65E-12, D65EX-12, D65PX-12, D75A-1, D75S-5

Applications with serial-number ranges

D50A-17 S/No. 60001-Up, D50A-17 S/No. 80001-Up, D50P, PL-17 S/No. 60001-Up, D53A-17 S/No. 80001-Up, D53P-17 S/No. 80001-Up, D58P-1 S/No. 80588-Up, D58P-1B S/No. 80588-Up, D60A-8 / P-8 / S-8 S/No. 45001-Up, D60A-8A S/No. 45001-Up, D65A-8 S/No. 45001-Up, D65E-8 S/No. 45001-Up, D65P-8 / S-8 S/No. 45001-Up, D65E-12 S/No. 60001-60941, D68E-1 S/No. 1001-Up, D68P-1 S/No. 45590-Up, D70-LE S/No. 45200-Up, D70LE-12 S/No. 60001-Up, GD605A-3 S/No. 54001-Up, GD605A-3US S/No. 57001-Up, GD623A-1 S/No. 30001-Up, GD625A-1 S/No. 50001-Up, GD625A-1C S/No. 60001-Up, GD655A-3 S/No. 64001-Up, D58E-1 S/No. 80888-Up, D58E-1B S/No. 80888-Up, D65E-12 S/No. 60942-Up, D65EX-12 S/No. 60001-60941, D65PX-12 S/No. 60001-60883, D75A-1 S/No. 50001-Up, D75S-5 S/No. 15001-Up

How do I confirm fitment?

Match 6150-21-1103 to the existing part number and verify the complete engine model, equipment model, and serial number. A shared model name does not confirm compatibility because production changes can affect the required component.

Frequently asked question

Will 6150-21-1103 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.