M Series 3 Motor Graders


February 19, 2014 - Equipment

<p><em>Image courtesy of Caterpillar</em></p>

The Cat M Series 3 motor graders — 12M3, 140M3, 160M3 and their all-wheel-drive (AWD) counterparts — offer greater fuel efficiency, more operator comfort and safety features, as well as enhanced serviceability.

M Series 3 motor graders meet final Tier 4 emission standards using emissions reduction technology that is designed to be transparent, with no action required by the operator. There is no need to stop for regeneration. The system uses Caterpillar’s after-treatment solution with the addition of Selective Catalytic Reduction (SCR). SCR utilizes Diesel Exhaust Fluid (DEF), which can be filled from ground level when the machine is fueled.

A new standard Economy (ECO) Mode can be turned on to help save fuel by reducing engine speed so the machine works in a more efficient range. The average fuel savings is up to 10%, depending on the application.

M Series 3 Motor Grader Specifications


12M3/12M3 AWD

140M3/140M3 AWD

160M3/160M3 AWD

Engine Model

Cat C9.3 ACERT

Cat C9.3 ACERT

Cat C9.3 ACERT

Base Power (1st gear) - Net


179 hp

149 kW

200 hp

165 kW

221 hp

Base Power (1st gear) - Net (Metric)


181 hp


202 hp


224 hp

VHP Plus Range - Net

133-172 kW

179-231 hp

149-188 kW

200-252 hp

165-203 kW

221-272 hp

VHP Plus Range - Net (Metric)


181-234 hp


202-255 hp


224-276 hp

AWD Range - Net

141-188 kW

189-252 hp

156-203 kW

210-272 hp

172-219 kW

231-293 hp

AWD Range - Net (Metric)


192-255 hp


213-276 hp


234-298 hp

Moldboard - Blade Width

3.7 m

12 ft

3.7 m

12 ft

4.2 m

14 ft

Operating Weight, Typically Equipped

19 344 kg

42,647 lb

19 935 kg

43,950 lb

20 660 kg

45,547 lb

Operating Weight, Typically Equipped AWD

20 236 kg

44,614 lb

20 827 kg

45,917 lb

21 552 kg

47,514 lb

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