Used Caterpillar 140KGrader

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📌 Overview

The Caterpillar 140K is a mid-size motor grader from Caterpillar's K-Series lineup, designed for road construction, maintenance, and finishing work. It replaced the older H-Series (140H) and offers improved fuel efficiency, operator comfort, and advanced technology. It sits between the smaller 120K and larger 143K/160K models in Caterpillar's range.

🔧 Key Specifications

Specification	Details
Engine	Cat® C7.1 ACERT® Turbo Diesel
Net Power	~175 hp (130 kW) @ 2,200 rpm
Operating Weight	~33,000–35,000 lbs (14,969–15,876 kg)
Blade Width	12 ft (3.7 m) or 14 ft (4.3 m)
Blade Height	Up to ~30 inches (762 mm)
Ripper	Single shank (optional)
Transmission	Full Powershift, 6F/3R
Tires	17.5R25 (Front & Rear)
Fuel Tank Capacity	~80–90 gal (303–341 L)
Grade Accuracy	±0.4 in (10 mm) with 2D Grade Control

& Engine & Powertrain

Feature	Details
Engine Model	C7.1 ACERT 4-cylinder turbo diesel
Displacement	439 cu in (7.2 L)
Emissions	EPA Tier 4 Final / EU Stage IV
Aftertreatment	DOC + DPF + SCR (DEF)
Transmission	Powershift, 6 forward / 3 reverse speeds
Speed Range	0 – 25 mph (0 – 40 km/h)
Axle Configuration	Oscillating rear axle with limited-slip differential

🏗️ Blade & Work Tools

Component	Details
Blade Type	6-way power-tilt & power-shift blade
Blade Widths	12 ft (3.7 m) or 14 ft (4.3 m)
Blade Angle	±30° (full range)
Blade Tilt	Up to ~25° for crown & side-slope work
Ripper	Single-shank rear ripper (optional) for breaking hard material
Scarifier	Optional front-mounted scarifier for surface prep

🖥️ Technology & Grade Control

Technology	Details
Grade Control	Cat GRADE with 2D (standard) / 3D (optional)
GPS/GNSS	Supports GPS, GLONASS, Galileo, BeiDou
Accuracy	±0.4 in (10 mm) vertical, ±0.8 in (20 mm) cross-slope
Display	Large touchscreen monitor in cab (VIMS / Product Link)
Automatic Blade Control	Yes — maintains set grade automatically
Ride Control	Optional rear axle oscillation control for smoother finish
Product Link™	Remote machine monitoring & fleet management
VisionLink®	Cloud-based asset management

💺 Operator Comfort & Cab

Feature	Details
Cab Type	Pressurized, ROPS/FOPS certified
Seat	Air-suspended, heated, fully adjustable
Climate Control	Auto A/C with HEPA filtration
Noise Level	~72 dB(A) (relatively quiet for its class)
Visibility	Excellent all-around visibility, large windshield
Controls	Electronic joystick controls (blade, ripper, transmission)
Hours Meter	Digital with maintenance alerts

🛢️ Fuel Efficiency & Eco Mode

Feature	Details
Eco Mode	Reduces engine RPM & hydraulic flow when full power isn't needed
Auto Engine Idle Shutdown	Engine shuts off after preset idle time
Fuel Savings	Up to 15–20% fuel savings vs. older H-Series
Hydraulic System	Load-sensing, variable displacement pump

📊 Applications

Application	Description
✅ Road Construction	Subgrade grading, base course preparation
✅ Road Maintenance	Resurfacing, patching, cross-slope correction
✅ Finish Grading	Final surface smoothing for paving
✅ Ditch & Slope Work	Side ditches, slopes, banks
✅ Snow Removal	With snow blade attachment (winter use)
✅ Mining & Quarry Roads	Haul road maintenance
✅ Airport Runways	Precision grading with 3D GPS

🆚 Comparison: 140K vs Similar Models

Model	Power	Weight	Blade	Class
120K	150 hp	~30,000 lbs	12 ft	Small
140K ⭐	175 hp	~33,000 lbs	12–14 ft	Mid-Size
143K	200 hp	~36,000 lbs	14 ft	Mid-Large
160K	210 hp	~38,000 lbs	14 ft	Large

💰 Approximate Pricing (2024)

Item	Estimated Cost (USD)
New Machine	$250,000 – $350,000+
Used (good condition)	$120,000 – $200,000
Rental (daily)	$800 – $1,200/day

(Prices vary by region, configuration, and condition)

✅ Advantages

✅ Pros
Excellent fuel efficiency (Eco mode)
Superior grade accuracy with 2D/3D GPS
Comfortable, quiet cab for all-day operation
Versatile — road, mining, airport use
Lower maintenance costs vs. older models
Strong resale value

⚠️ Limitations

❌ Cons
Not suitable for heavy earthmoving (use dozer instead)
Higher purchase price than some competitors (Komatsu GD725, Volvo G726)
DEF (AdBlue) required for emissions compliance
Blade width limited to 14 ft max

🏁 Summary

The CAT 140K is a highly productive, fuel-efficient, and technologically advanced mid-size motor grader ideal for road construction and maintenance contractors. With its C7.1 engine, 2D/3D grade control, Eco mode, and comfortable cab, it delivers excellent value and performance in its class — making it one of the most popular motor graders in the market today.