John Deere 672B Specs & Review

Technical Specifications of John Deere 672B Motor Grader


  • Overall Length: 27.27 ft
  • Width Over Tires: 7.85 ft
  • Wheelbase: 19.59 ft
  • Tandem Axle Wheelbase: 5.06 ft
  • Front Ground Clearance: 1.84 ft
  • Blade Base: 8.44 ft
  • Height To Top Of Isomount Cab: 10.08 ft


  • Number Of Cylinders: 6
  • Engine Make: 2240
  • Engine Model: 6414 T
  • Power Measured @: 2300 rpm
  • Torque Measured @: 1300 rpm
  • Max Power: 135 hp
  • Net Power Gears 7-8: 135 hp
  • Net Torque Gears 7-8: 400 lb-ft
  • Displacement: 414 cu in
  • Aspiration: Turbocharged


  • Std Operation Weight – Front Axle: 8700 lb
  • Std Operation Weight – Rear Axle: 19400 lb
  • Hydraulic System Fluid Capacity: 14 gal
  • Std Operation Weight – Total: 28100 lb
  • Max Operation Weight – Front Axle: 9910 lb
  • Max Operation Weight – Rear Axle: 22420 lb
  • Max Operation Weight – Total: 32330 lb
  • Oil System Fluid Capacity: 5 gal
  • Fuel Capacity: 70 gal
  • Cooling System Fluid Capacity: 7 gal
  • Circle Gearbox Fluid Capacity: 3 gal
  • Tandem Case Fluid Capacity (Each): 5 gal
  • Tire Size: 13.00-24
  • Operating Voltage: 24V
  • Alternator Supplied Amperage: 42 amps


  • Articulation Angle: 25 degrees
  • Turning Radius: 22.6 ft


  • Transmission Type: Power Shift
  • Number Of Gears – Forward: 8
  • Number Of Gears – Reverse: 4
  • Max Speed – Forward: 24.4 mph
  • Max Speed – Reverse: 8.2 mph

Front Axle

  • Wheel Lean: 20 degrees
  • Oscillation – Total: 32 degrees
  • Ground Clearance: 1.9 ft


  • Moldboard Width: 12 ft
  • Moldboard Height: 24 in
  • Moldboard Thickness: 0.9 in
  • Side Shift Left: 26.9 in
  • Side Shift Right: 26.9 in

Hydraulic System

  • Pump Type: Closed Center variable Displacement
  • Pump Flow: 37.6 gal/min


  • Diameter: 57.9 in
  • Rotation: 360 degrees
  • Shift Left: 28.6 in
  • Shift Right: 27.1 in
  • Max Reach Outside Tires – Left: 81.9 in
  • Max Reach Outside Tires – Right: 83.1 in
  • Max Lift Above Ground: 19.1 in

Blade Tip Angle

  • Front: 44 degrees
  • Rear: 10 degrees

Frequently Asked Questions

What is the maximum speed of the John Deere 672B Motor Grader?

The maximum speed in forward gear is 24.4 mph, and in reverse, it is 8.2 mph.

What is the engine power of this model?

The engine has a maximum power of 135 hp.

How many gears does the transmission have?

The transmission has 8 gears for forward motion and 4 gears for reverse.

What is the fuel capacity?

The fuel capacity is 70 gallons.

What type of hydraulic system does it have?

It has a Closed Center variable Displacement hydraulic system with a pump flow of 37.6 gal/min.

A Comprehensive Review of the John Deere 672B Motor Grader

A Glimpse into the John Deere 672B

The John Deere 672B is a motor grader manufactured by John Deere, a renowned name in the construction and agricultural machinery industry. This model is designed for high performance and durability, making it a reliable choice for various grading tasks.

The Core Features

The 672B comes with a 135 hp engine, a Power Shift transmission with 8 forward and 4 reverse gears, and a weight of 28,100 lbs in standard operational conditions. It also features a turbocharged aspiration system, enhancing its performance.

On the Road and Beyond

The machine offers a maximum speed of 24.4 mph in forward gear, making it efficient for tasks that require quick movement. Its 25-degree articulation angle and 22.6 ft turning radius allow for excellent maneuverability on the job site.

Technological and Comfort Aspects

The 672B is equipped with a Closed Center variable Displacement hydraulic system, ensuring precise control and efficient operation. It also offers a comfortable Isomount cab, providing a better working environment for operators.

Built to Last

The machine is known for its reliability, with a robust engine and durable components. The hydraulic system fluid capacity of 14 gallons and fuel capacity of 70 gallons add to its long-lasting performance.

Worth the Investment?

When compared to similar models in the market, the 672B offers good value for money, given its features and performance. Its operational weight and engine power are competitive, making it a cost-effective choice.

The Good and the Bad

  • Pros: High engine power, efficient transmission, good fuel and hydraulic fluid capacity, and excellent maneuverability.
  • Cons: Limited number of reverse gears and relatively high operational weight could be a concern for some users.

Ideal Working Conditions

The 672B is best suited for large construction sites, road maintenance, and agricultural tasks. Its features make it adaptable to different terrains and weather conditions.

The Final Word

The John Deere 672B Motor Grader is a reliable and efficient machine that offers a range of features for different grading tasks. Its robust build and performance make it a worthy investment for those in the construction and agricultural sectors.