Komatsu Spider 6684-71-7712

The Komatsu Spider 6684-71-7712 is identified in the supplied parts catalog as a FUEL SYSTEM for specific Komatsu diesel engine and equipment configurations. Cataloged engine models include SA6D170E-3A-7 & SAA6D170E-3F-8, NH220-C1, N855-1, and NTA855-1. Listed machine applications include D375A-5, HD465-7, HD605-7, PC1250-7, and PC1250LC-7. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is 6684-71-7712 used for?

Part number 6684-71-7712 is cataloged as a Spider. 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

SA6D170E-3A-7 & SAA6D170E-3F-8, NH220-C1, N855-1, NTA855-1, NT855-1

Engine models with serial-number ranges

SA6D170E-3A-7 & SAA6D170E-3F-8 (Build 15G) ? 310001-Up | 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

D375A-5, HD465-7, HD605-7, PC1250-7, PC1250LC-7, PC1250SP-7, WD600-3, WA600-3C / 3D, WA600-3LK, WA700-3 / 3D, 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

D375A-5 S/No. 18001-Up, HD465-7 S/No. 7001-Up, HD605-7 S/No. 7001-Up, PC1250-7 S/No. 310005-Up, PC1250LC-7 S/No. 310005-Up, PC1250SP-7 S/No. 310005-Up, WD600-3 S/No. 50001-Up, WA600-3C / 3D S/No. 50001-Up, WA600-3LK S/No. A53001-Up, WA700-3 / 3D S/No. 50001-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 6684-71-7712 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 6684-71-7712 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.