The Komatsu 787 Master Key – The Gold Standard for Site Earthmovers

Lost your Komatsu key? The 787 Ignition Key (Part No. TR261434) is the most widely used key in the Komatsu range. Often referred to as the Komatsu "Master Key," this double-sided metal key is the industry standard for almost every piece of Komatsu heavy equipment on Australian sites. From the iconic PC-series excavators to massive D-series dozers, the 787 is the one key every operator needs on their ring.

Why You Need This (The Essential Fleet Backup)

• Universal Komatsu Fit: One key starts the vast majority of Komatsu machinery, making it the perfect "all-in-one" spare for fleet managers and hire yards.
• Multi-Brand Crossover: Beyond Komatsu, this key is a confirmed fit for Dressta, Kalmar, and Sakai rollers and forklifts.
• Rugged Reliability: Precision-milled from high-quality alloy to withstand the vibration and heavy-duty use of civil construction environments.

Compatible Equipment

The 787 key is the primary ignition match for a massive range of machinery, including:

• Komatsu Excavators: PC18, PC30, PC50, PC75, PC130, PC200, PC300, PC450 (and many more).
• Komatsu Dozers: D21, D31, D37, D39, D61, D65, D85, D155 series.
• Komatsu Wheel Loaders: WA series (WA100 through WA600).
• Komatsu Graders & Rollers: GD series graders and JV series rollers.
• Other Brands: Fits most Dressta equipment, Kalmar forklifts, and Sakai rollers.

Technical Specs

• Part Number: 787 / TR261434 / TR261434-0001 / 2172-00218
• Stamp Code: 787
• Design: Double-sided metal blade (available with or without polymer grip).
• Application: Main Ignition, Cab Doors, and Side Panels.

Pro Tip: While this is the master ignition key, don't forget the Komatsu Battery Isolator (K2C166) to ensure your machine has power before you turn the key!