CAT® Cutting Edges, End Bits & Center Blades

Cutting Edges and Wear Parts for CAT® Construction Equipment

CAT® cutting edges are among the most common wear components used on buckets, blades and moldboards. They form the primary contact point between the machine and the material being moved. Replacing worn cutting edges helps maintain the attachment structure and restore proper working geometry.

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, Center Blades and Grader Blades

Center blades carry the majority of the material contact along the cutting edge. End bits protect the outer sections of the blade and are heavily loaded in loader and dozer applications.

Grader blades are used on motor graders for shaping, profiling and maintaining roads, working surfaces and construction areas. Depending on the machine and application, straight blades, curved grader blades, end bits and overlay components may be used.

Selection by CAT® Reference Number

Many cutting edges are identified using the existing reference number. This category includes products suitable for references such as 4T8101, 6Y5839, 6Y5540, 7T9125, 4T2315 and 100-6668.

When selecting a replacement part, the reference number should always be checked together with dimensions, bolt pattern and blade profile. Older machines may have been fitted with different cutting edge configurations during previous repairs.

Typical CAT® Applications

The products in this category are commonly used on CAT® wheel loaders, dozers, track loaders and motor graders. Wheel loaders frequently use combinations of center blades and end bits, while dozers and graders may use straight blades, curved blades or specialized cutting edge systems depending on the application.

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 Komatsu 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 the category Bolts & Nuts.

Check Before Replacement

Before replacing a CAT® 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 CAT® Cutting Edges

Which product types are included in this category?

This category includes cutting edges, end bits, center blades, dozer blades, grader blades and overlay components suitable for various CAT® machines.

How do I identify the correct CAT® cutting edge?

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

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 areas of the blade system.

Which CAT® machines commonly use these products?

Typical applications include CAT® wheel loaders, dozers, track loaders and motor graders.

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. CAT® and Caterpillar® are used solely to identify compatibility.