The Komatsu 787 Master Key – The Industry Standard

Need a replacement key for your Komatsu fleet? The 787 Ignition Key (Part No. TR261143 / 21E-01-21430) is the universal master key for the vast majority of Komatsu construction and mining equipment. Whether you're operating a 1.8-ton mini excavator or a heavy-duty wheel loader, the 787 is the one key you can't afford to be without. Precision-cut and stamped with 787 for instant identification.

Why You Need This (The Komatsu Fleet Essential)

• Universal Komatsu Fit: The primary ignition match for Komatsu excavators, wheel loaders, dozers, and graders across the modern range.
• Full Vehicle Access: Beyond the ignition, this key typically operates the cab doors, engine side panels, and lockable fuel caps.
• Heavy-Duty Reliability: Milled from high-strength alloy to withstand the vibration and daily use of civil and mining environments.

Compatible Equipment

The 787 key is a confirmed fit for a massive range of Komatsu machinery, including:

• Komatsu Excavators: PC18, PC30, PC55, PC130, PC200, PC220, PC300, PC450 and newer Dash-8, Dash-10, and Dash-11 series.
• Wheel Loaders: WA100, WA200, WA250, WA320, WA380, WA470, WA500, and WA600 series.
• Dozers: D31, D37, D39, D51, D61, D65, D85, and D155 crawler tractors.
• Dump Trucks & Graders: Fits HM-series articulated haulers and GD-series motor graders.
• Backhoes: Fits WB-series backhoe loaders.

Technical Specs

• Part Number: TR261143 / 21E-01-21430 / 787
• Stamp Code: 787
• Design: Double-sided heavy-duty metal blade.
• Application: Main Ignition, Cab Door, and Fuel Cap.

Pro Tip: The 787 is the "Cat 5P8500" of the Komatsu world. If you are a site fitter or a plant trailer driver, you should have at least three of these on you at all times!