Komatsu Oil Pump 6745-51-1111

The Komatsu Oil Pump 6745-51-1111 is identified in the supplied parts catalog as a LUBRICATING OIL SYSTEM for specific Komatsu diesel engine and equipment configurations. Cataloged engine models include SAA6D114E-3 and SAA6D114E-5. Listed machine applications include PC300-7E0 (ecot3), PC350-7E0 (ecot3), PC300LC-7E0 (ecot3), PC350LC-7E0 (ecot3), and PC340LC-7K-E0. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is 6745-51-1111 used for?

Part number 6745-51-1111 is cataloged as a Oil Pump. It appears in the LUBRICATING OIL SYSTEM parts group. The correct selection depends on the engine model, machine model, and the applicable serial-number range.

Compatible engine models

SAA6D114E-3, SAA6D114E-5

Engine models with serial-number ranges

SAA6D114E-3 (Build 9H) ? 26850001-Up | SAA6D114E-5 (Build 9I) ? 21857369-Up/26900001-Up

Application models without serial numbers

PC300-7E0 (ecot3), PC350-7E0 (ecot3), PC300LC-7E0 (ecot3), PC350LC-7E0 (ecot3), PC340LC-7K-E0, PC340NLC-7K-E0, D65EX-16/D65PX-16/D65WX-16, WA430-6, PC360LC-10, PC360NLC-10, D65EX-17, D65PX-17, D65WX-17

Applications with serial-number ranges

PC300-7E0 S/No. 50001 – UP (ecot3), PC350-7E0 S/No. 30001 – UP (ecot3), PC300LC-7E0 S/No. 50001 – UP (ecot3), PC350LC-7E0 S/No. 30001 – UP (ecot3), PC340LC-7K-E0 S/No. K45001 – UP, PC340NLC-7K-E0 S/No. K45001 – UP

How do I confirm fitment?

Match 6745-51-1111 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 6745-51-1111 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.