Categories ↠ Motor Graders ↠ Caterpillar 12H

Caterpillar 12H Motor Grader

Category: Motor Graders ➔
Manufacturer: Caterpillar ➔
Model: 12H ➔

The Caterpillar 12H is a motor grader designed for road construction, maintenance, and earthmoving applications. Built by Caterpillar, the 12H is part of the company's H-series grader line and is used for grading, leveling, ditching, and surface finishing on highways, mining sites, and municipal projects. It features a moldboard, articulated frame, and operator controls suited to precision blade work and material shaping. The 12H is commonly recognized for its durability, serviceability, and compatibility with a range of attachments. It remains a referenced model in the used equipment market and in fleet records for heavy civil and infrastructure work.

See all Caterpillar 12Hs for sale

Circle

Blade Tip Angle - Front	40 degrees
Blade Tip Angle - Rear	5 degrees
Diameter	60.20 in (152.91 cm)
Max Lift Above Ground	18.90 in (48.01 cm)
Max Reach Outside Tires - Left	73.60 in (186.94 cm)
Max Reach Outside Tires - Right	71.20 in (180.85 cm)
Rotation	360 degrees
Shift Left	27.40 in (69.60 cm)
Shift Right	28.70 in (72.90 cm)

Dimensions

Blade Base	8.50 ft (2.59 m)
Front Ground Clearance	2.00 ft (0.61 m)
Height to Top of Isomount Cab	10.30 ft (3.14 m)
Overall Length	28.20 ft (8.60 m)
Rear Ground Clearance	1.20 ft (0.37 m)
Tandem Axle Wheelbase	5.00 ft (1.52 m)
Wheelbase	20.00 ft (6.10 m)
Width Over Tires	8.10 ft (2.47 m)

Engine

Displacement	637.70 cu in (10,450.05 cu cm)
Net Power Gear 1-2	145.00 hp (108.13 kw)
Net Power Gear 4-6	165.00 hp (123.04 kw)
Net Power Gear 5-6	165.00 hp (123.04 kw)
Number of Cylinders	6
Power Measured @	2000 rpm

Front Axle

Ground Clearance	2.00 ft (0.61 m)
Oscillation - Total	32 degrees
Wheel Lean	18 degrees

Hydraulic System

Relief Valve Pressure

3500 psi

Moldboard

Blade Down Pressure	23,807.80 lbs (10,799.05 kg)
Blade Pull at Max Weight	28,867.00 lbs (13,093.87 kg)
Max Depth of Cut	28.90 in (73.41 cm)
Moldboard Height	24.10 in (61.21 cm)
Moldboard Thickness	0.90 in (2.29 cm)
Moldboard Width	12.10 ft (3.69 m)
Side Shift Left	20.60 in (52.32 cm)
Side Shift Right	26.00 in (66.04 cm)

Operating Specifications

Circle Gearbox Fluid Capacity	1.80 gal (6.81 l)
Cooling System Fluid Capacity	11.60 gal (43.91 l)
Max Operation Weight - Front Axle	13,744.00 lbs (6,234.18 kg)
Max Operation Weight - Rear Axle	32,074.00 lbs (14,548.54 kg)
Max Operation Weight - Total	45,818.00 lbs (20,782.72 kg)
Oil System Fluid Capacity	7.20 gal (27.25 l)
Operating Voltage	24 volts
Rear Diff/Final Drive Fluid Capacity	12.20 gal (46.18 l)
Std Operation Weight - Front Axle	8,346.00 lbs (3,785.69 kg)
Std Operation Weight - Rear Axle	22,974.00 lbs (10,420.84 kg)
Tandem Case Fluid Capacity (each)	16.90 gal (63.97 l)

Steering System

Turning Radius

24.30 ft (7.41 m)

Transmission

Number of Gears - Forward	8
Number of Gears - Reverse	6
Transmission Type	direct drive power shift

Our Main Office

Construction Equipment Guide
470 Maryland Drive
Fort Washington, PA 19034
800-523-2200

About Us

Construction Equipment Guide covers the nation with its four regional newspapers, offering construction and industry news and information along with new and used construction equipment for sale from dealers in your area. Now we extend those services and information to the internet. Making it as easy as possible to find the news and equipment that you need and want.

Contents Copyrighted 2026, by Construction Equipment Guide, which is a Registered Trademark, registered in the U.S. Patent Office. Registration number 0957323. All rights reserved, nothing may be reprinted or reproduced (including framing) in whole or part without written permission from the publisher. All editorial material, photographs, drawings, letters, and other material will be treated as unconditionally assigned for publication and copyright purposes and are subject to Construction Equipment Guide’s unrestricted right to edit and comment editorially. Contributor articles do not necessarily reflect the policy or opinions of this publication.

Read our privacy policy here.
Mastodon