Representative part-type image

For part-type identification only. Actual shape, dimensions, hole pattern, material, markings and fitment may vary by part number.

M7D1158

Product Type: Grader Blade
Brand: Caterpillar
Category: Grader Wear Parts
Key Dimensions: DBC 16X203X2133
Compatible Models: 160H 14H 14G 120G 140G 135H 12H 130G +2

Reference specifications for identification and compatibility only.

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A. Specifications

Part Number	M7D1158
Product Type	Grader Blade
Brand	Caterpillar
Category	Grader Wear Parts
Dimension	DBC 16X203X2133
Hardware	5J4773 / 2J3506
Material	Alloy steel
Weight	Not listed

B. Compatible Equipment

Brand	Equipment	Model
Caterpillar	Motor Grader	160H
Caterpillar	Motor Grader	14H
Caterpillar	Motor Grader	14G
Caterpillar	Motor Grader	120G
Caterpillar	Motor Grader	140G
Caterpillar	Motor Grader	135H
Caterpillar	Motor Grader	12H
Caterpillar	Motor Grader	130G
Caterpillar	Motor Grader	163H
Caterpillar	Motor Grader	143H

C. Related Part Numbers

Alternate Part Numbers	Not listed
Replaces	Not listed
Replaced By	Not listed
Similar Parts	9J3660, 9J3657, 9J7701, 3072613

D. Related Components

Reference data only. Confirm dimensions and compatibility before ordering.

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Catalog Reference · Extended Reference

CAT Graders GET

Catalog p.81

This reference maps to the 12-foot grader blade family with 3/4 inch bolt holes. The catalog page links the edge family to newer K and M series motor graders and shows how thickness, end bits, specialty adapters, and hardware packages change together.

Reference Summary

Primary blade family

Modern Cat grader moldboard edge system for K/M series

Hardware package

5J-4773 bolts and 2J-3506 nuts are listed for the standard edge package

Fitment Groups

12-foot blades / 3/4 inch bolt holes

Machine Models

120K12K140K120M12M140M160M

Reference Notes

The value of this page is not just the part number itself, but the fact that it sits inside a documented blade family with visible downstream accessories.

It works well as a second flagship grader page because it complements the older 5/8 inch family represented by M5D9553.