Glass and Window Parts

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Window Hardware Fitment and Compatibility

Sliding cab windows run on small rollers inside a rail, and almost every stiff or jammed window traces back to those rollers rather than to the glass or the latch. Common replacements include the window roller replacing OEM 7212726, the roller replacing OEM 46916685, the roller mount replacing OEM 7210694, the roller gasket replacing OEM 7269484, the right window rail kit replacing OEM 7307562, the window knob replacing OEM 7010359, the left and right hand window latches replacing Case 411909A1 and 411908A1, the window frame rollers replacing Komatsu 20Y-54-52681 and 20Y-54-52621, the window cord sold by the foot replacing OEM 6554149, and the rear window wire rope replacing OEM 6555331.

The rear window wire rope deserves separate attention. On many enclosed cabs it is the release for the emergency exit, which makes a frayed or seized one an inspection failure rather than an inconvenience. Check that it pulls freely as part of the same walkaround that covers the backup alarm.

Types of Replacement Window Hardware

Rollers, mounts, and rail kits carry the sliding panes. Replace rollers as a set per window rather than one at a time, because a single new roller running in a rail worn by old ones binds almost immediately and gets blamed on the new part.

Latches and knobs are usually handed, so note the left or right designation before ordering. Window cord and glazing rubber are sold by the foot and cut to the length you order, which lets you run a full perimeter rather than splice a section. Release cables and wire rope cover the rear window exit and other pull releases.

Where a window binds, look at the rail before the roller. Grit packed into the channel wears new rollers as fast as it wore the old ones, and cleaning the rail is what makes the repair last.

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