We analyzed four critical categories to find the truth behind the marketing:

• Control Efficiency: Joysticks vs. Levers
• Dealer Coverage: Parts Availability & Speed
• Depreciation: 5-Year Resale Value
• Ergonomics: Operator Comfort

Every motor grader in this comparison has a 12-foot blade and operates in the 170–190 horsepower range. The real differences lie in the cab, the dealer network, and the long-term cost of ownership.

CAT builds the most popular grading machine in North America. Their 120M model sells more units than any other single model. If you ask a fleet manager to name top equipment, they say “CAT” before you finish the question.

Why Operators Love the CAT Motor Grader:
CAT replaced ten mechanical levers with two electric-over-hydraulic joysticks. A new operator learns this machine in one day instead of one week. The cab sits in the middle of the frame, so you see both ends of the blade simultaneously, preventing costly mistakes during fine-ditching.

The Real Advantage – Dealer Support:
CAT dealers are everywhere. In North America, you are never more than 90 minutes from a dealer. If you have a broken, working motor grader, downtime is your real enemy. Parts arrive the next morning.

Resale Value:
A 5-year-old CAT equipment keeps 68% of its original value. No other brand comes close. You pay $320,000 upfront, but you recover $217,000 at trade-in time.

• Who Should Buy the CAT Motor Grader: Large fleets, contractors working far from home, and owners who hate waiting for parts.

Komatsu is the largest Japanese brand and the #2 seller of these machines globally. Their GD655 model directly competes with CAT, but Komatsu takes a completely different philosophy.

Why Old-School Operators Prefer This Motor Grader:
Komatsu refuses to switch to joysticks. Their machine keeps direct mechanical linkage between the levers and the blade. Experienced operators say they can “read” the material through a Komatsu motor grader in ways that electronic joysticks hide. The cab sits slightly forward, giving you perfect front-blade edge visibility.

Dealer & Parts Reality:
Parts take two to three days. However, service labor costs 15% less than CAT. If you have a backup motor grader, the slower parts speed doesn’t hurt your operation.

Resale Value:
A 5-year-old Komatsu motor grader keeps 55% of its original value. Respectable, but not CAT-level.

• Who Should Buy the Komatsu Motor Grader: Experienced operators with 10+ years on levers, and fleets that keep a spare machine.

John Deere builds heavy machines for farms, logging roads, and small construction sites. Their 770G model is incredibly flexible because they let you choose your control system.

Why This Grader Wins on Flexibility:
John Deere understands that some operators hate joysticks. When you buy a 770G motor grader, you order it with either CAT-style joysticks or Komatsu-style levers. No other brand gives you this choice. Additionally, the cab is the largest in its class, easily fitting a 6’4″ operator.

Dealer Coverage – Rural Strength:
In farming regions, Deere dealers match CAT for parts availability. If you grade gravel roads in Iowa or Nebraska, a John Deere motor grader makes perfect sense. City support, however, is slightly weaker.

Resale Value:
A 5-year-old John Deere machine keeps 60% of its original value. Strong, but not top-tier.

• Who Should Buy the John Deere Motor Grader: Farm operations, tall operators, and crews that need control choices.

CASE makes affordable heavy equipment for contractors who cannot finance the most expensive brands. Their 856C model is the cheapest in this comparison, both upfront and in parts pricing.

No Electronics, No Problems:
CASE builds equipment for mechanics who hate computers. There are no touch screens or GPS interfaces. If you can fix a tractor from 1995, you can fix a CASE motor grader.

Parts Cost – The Lowest in Industry:
A replacement blade edge costs $400 (compared to $680 for CAT). A hydraulic hose costs $85. If you have your own mechanic, this machine saves you thousands per year.

The Ugly Truth – Resale Value:
A 5-year-old CASE machine keeps only 40% of its original value. You save $40,000 upfront, but you lose heavily at trade-in. However, if you keep a motor grader for 15+ years, depreciation stops mattering.

• Who Should Buy the CASE Machine: Owner-operators with their own shop, and contractors on a strict cash budget.

Volvo builds heavy equipment for operator retention. Their G930 model costs the most upfront and the most to maintain, but your best operator will refuse to get out of the cab.

Haptic Feedback – A Game Changer:
The joysticks vibrate when the Volvo motor grader blade touches rock or buried concrete. You feel the strike through your palms before you see the blade jump, preventing severe damage during night grading.

The Dealer Problem:
Volvo has the fewest dealers. Parts take three to five days, and a service call costs $220 per hour. If your equipment breaks down on Friday, Volvo might not get to you until Tuesday.

Resale Value:
A 5-year-old Volvo motor grader keeps 52% of its original value. Mediocre for the premium price tag.

• Who Should Buy the Volvo Motor Grader: Night grading operations, and companies where operator comfort is a recruiting tool.

Control Type & Learning Curve

Dealer Coverage & Service Costs

5-Year Resale Value

Stop reading comparisons. Start testing. Rent your top two choices for one week each. Run them on your actual jobs and let your operators decide.

But if you need a winner today: CAT wins for fleets and resale. CASE wins for cash-strapped owner-operators. John Deere wins for farm country.

This is a 15-year decision. Do not rush. Buy based on dealer distance and operator feedback. The right motor grader will grade 500,000 tons of material before you trade it in. The wrong machine will cost you $10,000 in lost time every single summer. Now you have the full comparison of the top 5 brands. Look at your budget, look at your operator skill, and let your profit numbers confirm the choice.