Komatsu Water Pump Assy 6742-01-5577

The Komatsu Water Pump Assy 6742-01-5577 is identified in the supplied parts catalog as a COOLING SYSTEM for specific Komatsu diesel engine and equipment configurations. Cataloged engine models include S6D114 and SA6D114E-1-GD. Listed machine applications include 538, 850, 850, 850, 850B, 850C, 870, 870B & 870C, 870, 870, TD-15C, TD-15E, GD655-3A, GD655-3C, GD655-3C-VH, and GD675-3A. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is 6742-01-5577 used for?

Part number 6742-01-5577 is cataloged as a Water Pump Assy. It appears in the COOLING SYSTEM parts group. The correct selection depends on the engine model, machine model, and the applicable serial-number range.

Compatible engine models

S6D114, SA6D114E-1-GD

Engine models with serial-number ranges

S6D114 (Build 9) ? Not Provided | SA6D114E-1-GD (Build 9E) ? Not Provided

Application models without serial numbers

538, 850, 850, 850, 850B, 850C, 870, 870B & 870C, 870, 870, TD-15C, TD-15E, GD655-3A, GD655-3C, GD655-3C-VH, GD675-3A, GD675-3C, PC300LC-6LE, PC300HD-6LE, WA320-3H Active, WA380-3H Active

Applications with serial-number ranges

538 S/No. U0030001-U003100 & C003101-Up, 850 S/No. U200000-U200416, 850 S/No. U200417-U201999, 850, 850B, 850C, 870, 870B & 870C S/No. U202002-Up, 870 S/No. U200000-U200416, 870 S/No. U200417- U201999, TD-15C S/No. P061366-Up, TD-15E S/No. U008001 – Up & P030501-Up, GD655-3A S/No. 10001-Up, GD655-3C S/No. 50001-Up, GD655-3C-VH S/No. 50001-Up, GD675-3A S/No. 10001-Up, GD675-3C S/No. 50001-Up, PC300LC-6LE S/No. A84001-Up, PC300HD-6LE S/No. A84001-Up, WA320-3H Active S/No. 20561-Up, WA380-3H Active S/No. 20501-Up

How do I confirm fitment?

Match 6742-01-5577 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 6742-01-5577 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.