Komatsu Fuel Feed Pump 6553-91-1400

The Komatsu Fuel Feed Pump 6553-91-1400 is identified in the supplied parts catalog as a FUEL SYSTEM for specific Komatsu diesel engine and equipment configurations. Cataloged engine models include SA6D140-1, S6D170E/SA6D170E/SAA6D170E-2, and SAA6D170E-2A. Listed machine applications include PC650-3, PC650LC-3, PC650SE-3, PC650-5, and PC650E-5. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is 6553-91-1400 used for?

Part number 6553-91-1400 is cataloged as a Fuel Feed Pump. 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

SA6D140-1, S6D170E/SA6D170E/SAA6D170E-2, SAA6D170E-2A

Engine models with serial-number ranges

SA6D140-1 (Build 12C) ? Not Provided | S6D170E/SA6D170E/SAA6D170E-2 (Build 15B) ? Not Provided | SAA6D170E-2A (Build 15F) ? 17389-Up

Application models without serial numbers

PC650-3, PC650LC-3, PC650SE-3, PC650-5, PC650E-5, PC650LC-5, PC650SE-5, PC710-5 / SE-5, PC1600-1, HD325-5, HD325-6/6W, D275A-2, D375A-3, D375A-3, D375A-3AD / 3D, PC1000-1, PC1000LC-1, PC1000SE-1, PC1000SP-1, PC1100-6, PC1100LC-6, PC1100SP-6, WA600-3, WA700-1L, WA700-3, WA700-3L, HD465-5, HD605-5

Applications with serial-number ranges

PC650-3 S/No. 10501-Up, PC650LC-3 S/No. 10501-Up, PC650SE-3 S/No. 10501-Up, PC650-5 S/No. 20001-Up, PC650E-5 S/No. 20001-Up, PC650LC-5 S/No. 20001-Up, PC650SE-5 S/No. 20001-Up, PC710-5 / SE-5 S/No. 10001-Up, PC1600-1 S/No. 10063-Up, HD325-5 S/No. 2001-Up & A3027-Up, HD325-6/6W S/No. 5001-Up, D275A-2 S/No. 10001-Up, D375A-3 S/No. 17001-17500, D375A-3 S/No. 17501-Up, D375A-3AD / 3D S/No. 17001-Up, PC1000-1 S/No. 10001-Up, PC1000LC-1 S/No. 10001-Up, PC1000SE-1 S/No. 10001-Up, PC1000SP-1 S/No. 10001-Up, PC1100-6 S/No. 10001-Up, PC1100LC-6 S/No. 10001-Up, PC1100SP-6 S/No. 10001-Up, WA600-3 S/No. 50001-Up, WA700-1L S/No. A20001-Up, WA700-3 S/No. 50001-Up, WA700-3L S/No. A50001-Up, HD465-5 S/No. 4001-Up, HD605-5 S/No. 1001-Up

How do I confirm fitment?

Match 6553-91-1400 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 6553-91-1400 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.