Used Caterpillar 336D2Excavator

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📌 OVERVIEW

The Caterpillar 336D2 is a medium-to-large hydraulic excavator (~37-tonne class) introduced in 2011 as the successor to the popular 336D. It is designed for heavy-duty construction, mining, quarrying, and demolition applications. The "D2" designation represents Cat's second-generation D-series with significant improvements in fuel efficiency, operator comfort, and productivity.

🔧 ENGINE SPECIFICATIONS

Parameter	Details
Engine Model	Cat C7.1 ACERT (Tier 4 Final / Stage IIIB)
Type	6-cylinder, turbocharged, aftercooled diesel
Displacement	7.1 L (433 in³)
Rated Power	268 hp (199 kW) @ 2,000 rpm
Torque	711 lb-ft (964 N·m) @ 1,400 rpm
Emissions	EPA Tier 4 Final / EU Stage IIIB (uses DPF + SCR)
Fuel Tank Capacity	~680 L (180 gal)

✅ The C7.1 ACERT engine delivers up to 10% better fuel efficiency compared to the previous 336D (C7 engine).

⚖️ OPERATING WEIGHT & DIMENSIONS

Parameter	Metric	Imperial
Operating Weight	~36,800 kg (81,130 lb)	~37 tonnes
Transport Length	10.83 m (35.5 ft)
Transport Height	3.19 m (10.5 ft)
Transport Width	3.19 m (10.5 ft)
Ground Clearance	470 mm (18.5 in)
Track Gauge	2.59 m (8.5 ft)
Track Length on Ground	3.94 m (12.9 ft)
Tail Swing Radius	2.94 m (9.6 ft)

🪣 DIGGING PERFORMANCE

Parameter	Metric	Imperial
Max Digging Depth	7.39 m (24.3 ft)
Max Digging Reach	10.72 m (35.2 ft)
Max Dumping Height	7.67 m (25.2 ft)
Max Digging Force (Boom)	175 kN (39,300 lbf)
Max Digging Force (Arm)	132 kN (29,700 lbf)
Bucket Capacity Range	1.0 – 1.9 m³ (1.3 – 2.5 yd³)
Bucket Teeth Force	175 kN (39,300 lbf)

🛠️ HYDRAULIC SYSTEM

Parameter	Details
Pump Type	Variable displacement, piston pump
System Pressure	350 bar (5,076 psi)
Max Flow	2 × 284 L/min (75 gpm) or 2 × 364 L/min (96 gpm) — Hi-Flow option
Total Flow (Standard)	568 L/min (150 gpm)
Total Flow (Hi-Flow)	728 L/min (192 gpm)

🔄 The Optional Hi-Flow hydraulic system provides up to 30% more flow for faster cycle times with hydraulic attachments (breakers, grapples, shears, etc.)

🕹️ OPERATOR ENVIRONMENT (CAB)

Feature	Details
Cab Type	ROPS/FOPS certified, pressurized & filtered
Climate Control	Automatic air conditioning with heater
Seat	Air-suspended, heated, with armrests
Display	7" (178 mm) color LCD monitor with rear-view camera
Controls	Electronic joystick controls with auto-idle
Noise Level	~73 dB(A) (relatively quiet for its class)
Sound Insulation	Improved over 336D — ~40% noise reduction

💻 TECHNOLOGY & ELECTRONICS

Feature	Description
✅ Cat Product Link™	Real-time machine monitoring, fleet management, diagnostics
✅ Cat GRADE with 2D/3D	GPS-guided grading & digging for improved accuracy
✅ Payload System	Optional — weighs bucket load in real-time (±1% accuracy)
✅ Auto-Idle / Eco Mode	Reduces engine RPM when not working — saves fuel
✅ SmartBOOST	Automatic power management — provides extra power when needed
✅ Security	Cat Security (anti-theft, immobilizer)
✅ Technician Access	Remote diagnostic capability via Cat SIS

🔩 UNDERCARRIAGE & BOOM/ARM OPTIONS

Configuration	Details
Boom Options	5.5 m (18 ft) or 6.1 m (20 ft)
Arm Options	2.9 m (9.5 ft) or 3.2 m (10.5 ft)
Stick Options	Standard or Long Reach (up to 9.5 m / 31 ft)
Undercarriage	Heavy-duty with triple-grouser shoes or single-grouser
Track Width	600 mm (24 in), 750 mm (30 in), or 900 mm (36 in)
Blade	Dozer blade available (for grading/leveling)

📊 PERFORMANCE COMPARISON: 336D vs 336D2

Parameter	336D	336D2	Improvement
Engine Power	256 hp	268 hp	+5%
Fuel Efficiency	Baseline	~10% better	⬆️
Operating Weight	36,650 kg	36,800 kg	Slightly heavier
Noise Level	Higher	~40% quieter	⬆️⬆️
Productivity	Standard	~10% more	⬆️
Emissions	Tier 3	Tier 4 Final	⬆️

🎯 TYPICAL APPLICATIONS

Application	Details
🏗️ General Construction	Excavation, trenching, foundation work
& Mining & Quarrying	Loading trucks, bench work, material handling
🏚️ Demolition	With hydraulic breaker or shear
🌊 Dredging	Long reach configuration
🌲 Forestry	With grapple attachment
🔧 Pipeline	With side-boom or tilting bucket
🏢 Landscaping	Grading, digging with dozer blade

💵 APPROXIMATE PRICING (2024 estimates)

Configuration	Price Range (USD)
New Machine (Standard)	$250,000 – $320,000
With Hi-Flow + Tech Package	$300,000 – $370,000
Used (2012–2017, ~5,000–8,000 hrs)	$100,000 – $180,000

(Prices vary significantly by region, configuration, and dealer)

✅ KEY ADVANTAGES

✅ Advantage	Explanation
🔥 Fuel Efficient	Best-in-class fuel economy for 37T class
🔇 Quiet Cab	One of the quietest in its class
📈 Productive	10% more productivity vs 336D
🖥️ Tech-Rich	Product Link, Cat GRADE, payload ready
💪 Reliable	Cat C7.1 — proven, durable engine
🔄 Versatile	Multiple boom/arm/stick configurations

🏆 SUMMARY

Category	Rating
Power	⭐⭐⭐⭐⭐
Fuel Economy	⭐⭐⭐⭐⭐
Operator Comfort	⭐⭐⭐⭐⭐
Durability/Reliability	⭐⭐⭐⭐⭐
Technology	⭐⭐⭐⭐⭐
Resale Value	⭐⭐⭐⭐⭐

🏅 The CAT 336D2 is widely regarded as one of the best mid-size excavators in the world — combining power, efficiency, comfort, and smart technology in a proven Cat package. It remains a top seller globally even years after its launch.

Would you like more details on any specific aspect — such as attachment compatibility, maintenance schedule, or comparison with competitors (Komatsu PC360, Volvo EC380, etc.)? 🚜