Komatsu® Bulldozer Cutting Edges

Cutting Edges for Komatsu® Bulldozers

Komatsu® cutting edges are among the most frequently replaced wear components on bulldozer blade systems. They form the primary contact point between the machine and the material being moved and are replaced when wear reaches the service limit.

The parent category Wear Bars, Cutting Edges & Wear Profiles includes additional wear bars, weld-on cutting edges, grader blades, wear profiles and wear protection components for construction equipment.

Understanding End Bits and Center Blades

Center blades form the main section of the cutting edge and carry the majority of the material contact. End bits protect the outer areas of the blade and are exposed to high wear loads, particularly during pushing and grading operations.

Different blade systems require different blade profiles, dimensions and bolt patterns depending on machine size and application.

Selection by Komatsu® Reference Number

Many Komatsu® cutting edges are identified using the existing reference number. On bulldozer blade systems, the installed reference number is often the fastest and most reliable method of identifying the correct replacement part.

This category includes products suitable for references such as 112-946-1510, 12Y-72-11210, 134-72-61410, 13G-72-61420, 14Y-71-11210 and 424-70-H2D60.

When selecting a replacement part, the reference number should always be checked together with dimensions, bolt pattern and blade profile. Older machines or rebuilt blade systems may use different cutting edge configurations.

Typical Applications on Komatsu® Bulldozers

The majority of products in this category are used on Komatsu® bulldozers. Depending on the blade configuration, different combinations of center blades and end bits are installed.

Bolt-on cutting edge systems allow individual wear components to be replaced without modifying the complete blade structure.

Additional Cutting Edge Categories

For universal bolt-on cutting edges, please refer to 6 Inch Bolt-On Cutting Edges. For custom lengths, see 6 Inch Reversible Bolt-On Cutting Edges – Cut to Size.

If a weld-on solution is required, suitable products can be found in Wear Bars & Cutting Edges and Wear Bars & Cutting Edges Cut to Size.

Manufacturer-Specific Cutting Edge Categories

Additional manufacturer-specific categories include CAT Cutting Edges, Volvo Cutting Edges and Liebherr Cutting Edges.

For grader applications, see Grader Blades and Bolt-On Grader Blades. Matching fasteners are available in Bolts & Nuts.

Check Before Replacement

Before replacing a Komatsu® cutting edge, verify the reference number, length, width, thickness, bolt pattern, blade profile and installation position. For end bits, it is also important to determine whether a left-hand or right-hand version is required.

Checking the existing component before ordering helps ensure correct fitment and reduces installation work.

Frequently Asked Questions About Komatsu® Cutting Edges

Which product types are included in this category?

This category includes end bits, center blades, cutting edges and additional bolt-on wear components suitable for Komatsu® bulldozers.

How do I identify the correct Komatsu® cutting edge?

In many cases, the reference number is the primary identification method. Dimensions, bolt pattern, blade profile and installation position should also be verified.

What is the difference between an end bit and a center blade?

Center blades form the main section of the cutting edge, while end bits protect the outer sections of the blade system.

Which machines commonly use these products?

The products in this category are primarily used on Komatsu® bulldozers.

Where can I find universal bolt-on cutting edges?

Universal products are available in the category 6 Inch Bolt-On Cutting Edges.

Trademark and Compatibility Notice

Unless explicitly identified as original parts, the products in this category are LIS® replacement parts. Komatsu® is used solely to identify compatibility.