Komatsu Fuel Nozzle Injector 6742-01-3730

The Komatsu Fuel Nozzle Injector 6742-01-3730 is identified in the supplied parts catalog as a FUEL SYSTEM for specific Komatsu diesel engine and equipment configurations. Cataloged engine models include S6D114. Listed machine applications include 538, 850, 850, 850, 850B, 850C, 870, 870B & 870C, 870, 870, TD-15C, TD-15E. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is 6742-01-3730 used for?

Part number 6742-01-3730 is cataloged as a Fuel Nozzle Injector. It appears in the FUEL SYSTEM parts group. The correct selection depends on the engine model, machine model, and the applicable serial-number range.

Compatible engine models

S6D114

Engine models with serial-number ranges

S6D114 (Build 9) ? Not Provided

Application models without serial numbers

538, 850, 850, 850, 850B, 850C, 870, 870B & 870C, 870, 870, TD-15C, TD-15E

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

How do I confirm fitment?

Match 6742-01-3730 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 6742-01-3730 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.