Komatsu Upper Door Glass for 21W-54-46220 | Depco

📘 Overview

Komatsu door glass replacement — upper Door Glass — the Komatsu replacement for OEM 21W-54-46220. It covers 4 published Komatsu models, listed in full further down this page. The pane installs into the original cab frame using the factory glazing seal and retaining hardware, so no cab modification is required. Sold as a komatsu door glass replacement and listed as a komatsu door glass replacement, it is matched to the OEM number rather than offered as a universal fit.

⚙ Key Features of the Komatsu PC78MR-6 Upper Door Glass

• Direct interchange with OEM 21W-54-46220 — same mounting points and same fit as the original Komatsu part
• One part number across 4 models spanning Komatsu Excavators — one spare covers a mixed fleet
• Packed for large suspension — the shipping method Depco specifies for this part
• A true excavator upper door glass — the komatsu upper door glass is dimensioned from the original Komatsu part, not adapted from a similar one

🔑 Why Fit the OEM 21W-54-46220 Upper Door Glass Replacement

• Restores the original sightline — cracked cab glass is a visibility and pre-start inspection failure, not a cosmetic problem
• Aftermarket pricing against a dealer pane with the identical cut and the identical mounting method
• Ordering a komatsu excavator by OEM number removes the guesswork — the upper door glass replacement fitment on this page is published, not inferred

📊 Komatsu door glass replacement Specifications — OEM 21W-54-46220

Specification Value OEM part number 21W-54-46220 Depco part number D21W-54-46220 Part type Upper Door Glass Glass Length 38" Box Glass Width 5" Glass Height 50" Machine class Excavator Models covered 4 Installation Original cab frame, factory glazing seal Shipping method Large Suspension

🚜 Which Komatsu Models Take the OEM 21W-54-46220 Upper Door Glass?

This is a machine-specific replacement part matched to OEM 21W-54-46220, not a universal fit. Fitment follows the published model list below:

Machine group Models Komatsu Excavators PC78MR-6, PC128US-2, PC138US-2, PC228USLC-3

Match your machine against the list above and confirm the serial-number range before ordering. If your model is not listed, email support@eskidsteer.com or message us on chat with the machine model and serial number. Everything needed to confirm fitment is on this page — add it to your cart to check delivered pricing for your address.

🔗 Parts Often Bought With the 21W-54-46220 Upper Door Glass

These are stocked on eskidsteer.com and relate directly to this upper door glass — the opposite side, a part supplied inside the same kit, or another part fitting the same machines:

Part OEM number Why it is listed here Komatsu Excavator Front Lower Glass for PC78MR, PC128US-2, PC138US-2 OEM 22B-54-15811 fits the same machines Komatsu Excavator Lower Door Glass for 22B-54-16150 OEM 22B-54-16150 the same part for other models Komatsu Upper Right Door Glass for PC400-6Z, PC450LC-6K, PC300LC-6 OEM 20Y-54-35821 the same part for other models

❓ OEM 21W-54-46220 Upper Door Glass Questions, Answered