Komatsu Filter Oil Bypass 6610-51-5050

The Komatsu Filter Oil Bypass 6610-51-5050 is identified in the supplied parts catalog as a FILTERS for specific Komatsu diesel engine and equipment configurations. Cataloged engine models include S4D155-4, S6D155-4, NH220-C1, and N855-1. Listed machine applications include D95S-1, D150A-1, D155A-1, D155W-1, and D155A-2. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is 6610-51-5050 used for?

Part number 6610-51-5050 is cataloged as a Filter Oil Bypass. It appears in the FILTERS parts group. The correct selection depends on the engine model, machine model, and the applicable serial-number range.

Compatible engine models

S4D155-4, S6D155-4, NH220-C1, N855-1, NTA855-1, NT855-1

Engine models with serial-number ranges

S4D155-4 (Build 14) ? Not Provided | S6D155-4 (Build 14A) ? Not Provided | NH220-C1 (Build 18A) ? Not Provided | N855-1 (Build 19A) ? Not Provided | NTA855-1 (Build 19B) ? Not Provided | NT855-1 (Build 19C) ? Not Provided

Application models without serial numbers

D95S-1, D150A-1, D155A-1, D155W-1, D155A-2, D155S-1, D355A-3, D60A-7, D60E-6, D60E-7 / D60-S7, D60P, PL-7, D65A, P-6, D65E-6, D65E-7 / D65P-7 / D65-S7, D65S-6, D68E, P1A, D75S-2, D75S-3, D80A-12, D80E-12, D80P-12, D85A-12, D85E-12, GD605A-2, GD655A-2, PC300-1, PC300-2, PC300LC-1, PC300LC-2, HD320-2, HD320-3, PC400-1, PC400LC-1, D80P-18, D85A-18, D85E-18, D85P-18, D95S-2

Applications with serial-number ranges

D95S-1 S/No. 1003-1999, D150A-1 S/No. 5508-Up, D155A-1 S/No. 5508-Up, D155W-1 S/No. 12128-Up, D155A-2 S/No. 50001-Up, D155S-1 S/No. 1001-Up, D355A-3 S/No. 1010-Up, D60A-7 S/No. 40001-Up, D60E-6 S/No. 20295-Up, D60E-7 / D60-S7 S/No. 40001-Up, D60P, PL-7 S/No. 40001-Up, D65A, P-6 S/No. 20006-Up, D65E-6 S/No. 20295-Up, D65E-7 / D65P-7 / D65-S7 S/No. 40001-Up, D65S-6 S/No. 20006-Up, D68E, P1A S/No. B10001-Up, D75S-2 S/No. 1004-Up, D75S-3 S/No. 7001-Up, D80A-12 S/No. 10001-24999, D80E-12 S/No. 10001-24999, D80P-12 S/No. 10001-24999, D85A-12 S/No. 10001-Up, D85E-12 S/No. 10001-24999, GD605A-2 S/No. 53001-Up & 56001-Up, GD655A-2 S/No. 63001-Up & 66001-Up, PC300-1 S/No. 1001-Up, PC300-2 S/No. 11001-Up, PC300LC-1 S/No. 11001-Up, PC300LC-2 S/No. 11001-Up, HD320-2 S/No. 1005-Up, HD320-3 S/No. 2501-Up, PC400-1 S/No. 10001-Up, PC400LC-1 S/No. 10001-Up, D80P-18 S/No. 2001-Up, D85A-18 S/No. 25001-Up, D85E-18 S/No. 25001-Up, D85P-18 S/No. 25001-Up, D95S-2 S/No. 2001-Up

How do I confirm fitment?

Match 6610-51-5050 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 6610-51-5050 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.