Komatsu 6643-21-4731 Plate Lock

Komatsu 6643-21-4731 Plate Lock is an aftermarket Komatsu replacement plate lock for part number 6643-21-4731. This WQ Certified part is intended for Komatsu equipment applications identified from parts-book usage data.

Known machine usage: D355A-3, D80A-12, D85A-12, D80P-12, D355A-5, D355A-3X, D155C-1D, D155C-1P, D155C-1P-ZZ, D80A-18, D80E-18, D80P-18, and other Komatsu models.

Equipment families: Bulldozers, Pipelayers.

Usage evidence: this part appears in 60 parts-book usage row(s) across 15 machine model reference(s) in the supplied Komatsu usage report.

Please verify your machine model, serial number, and existing part number before ordering. If you are unsure, contact WQC Parts with your machine serial number and we can help confirm fitment.

WQC Parts supplies WQ Certified aftermarket Komatsu parts built to support heavy equipment uptime, reliability, and value.