Used Caterpillar 336DExcavator

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📌 Overview

The Caterpillar 336D is a mid-sized (33–36 tonne class) hydraulic excavator that was introduced in 2007 as part of Caterpillar's D-Series lineup. It replaced the popular 336C and was designed for heavy-duty construction, mining, and demolition applications. The 336D was later succeeded by the 336E2 / 336 GC (Next Gen) around 2018–2020.

It sits in Cat's product line between the 330D (30-ton class) and the 340D/345D (40-ton class), making it one of the most versatile and popular excavators in its segment.

🔧 Key Specifications

Specification	Details
Manufacturer	Caterpillar Inc.
Model	336D (D-Series)
Production Years	2007 – ~2020
Operating Weight	~73,110 lbs (33,162 kg) / ~33.2 tonnes
Engine	Caterpillar C9 ACERT (6-cylinder, turbocharged diesel)
	Some markets: C7 ACERT
Engine Power	313 hp (233 kW) @ 1,800 rpm (C9)
	~281 hp (C7 version)
Displacement	9.3L (C9) / 7.2L (C7)
Bucket Capacity (Standard)	1.2 – 1.7 m³ (1.5 – 2.2 cu yd)
Max Digging Depth	~7.2 m (23.7 ft)
Max Reach (Ground Level)	~10.1 m (33.2 ft)
Max Dumping Height	~7.4 m (24.3 ft)
Hydraulic Flow	~2 × 295 L/min (78 GPM)
Fuel Tank Capacity	~650 L (172 gal)
Track Width	600 mm (24 in) — standard
	800 mm (32 in) — optional

& Engine — C9 ACERT

Feature	Detail
Type	6-cylinder, inline, turbocharged, aftercooled
Displacement	9.3 liters
Emissions	EPA Tier 3 / EU Stage IIIA (ACERT technology)
Technology	Electronic fuel injection, SCR (Selective Catalytic Reduction) in some regions
Features	Automatic engine speed control, reduced idling, excellent fuel efficiency

💡 The ACERT (Advanced Combustion Emission Reduction Technology) system delivers ~5–10% better fuel economy compared to the older 336C, with lower emissions.

🖥️ Operator Environment — Cab & Comfort

The 336D features one of the best cabs in its class:

Feature	Description
ROPS/FOPS	Fully certified Roll-Over & Falling-Object Protective Structure
Air Conditioning	Fully automatic climate control
Heating	Cab heater + heated seat
Seat	Air-ride suspension seat with armrests
Display	LCD monitor showing engine info, diagnostics, fuel usage, etc.
Sound Level	~73 dB(A) — very quiet for its class
Visibility	Large windows, excellent all-around visibility
Controls	Joystick with auto-idle, pattern changer, and attachment control

🔧 Hydraulic System

Feature	Detail
Type	Load-sensing hydraulic system with variable displacement piston pumps
Flow	Dual pump — ~590 L/min (156 GPM) total
Pressure	350 bar (5,075 psi) working pressure
Attachments	Quick coupler ready, piping for thumb, hammer, grapple, shears, etc.
Boom/Arm Options	Long reach, heavy duty, or combination configurations available

🏗️ Applications

The 336D is a true workhorse used in:

Sector	Applications
🏗️ General Construction	Excavation, trenching, backfilling, grading
& Mining & Quarrying	Rock loading, bench digging, material handling
🏚️ Demolition	Building teardown (with hydraulic breaker/shear)
🌊 Dredging	River/canal dredging (with special boom)
🛤️ Road Building	Pipeline laying, road grading
🌲 Forestry	Land clearing, stump removal
🏭 Material Handling	Loading trucks, stockpiling

✅ Key Advantages

Advantage	Explanation
💪 Powerful & Efficient	313 hp with excellent fuel economy (~15–20 L/hr depending on workload)
🔧 Low Maintenance	Longer service intervals (500/1000/2000/4000 hr), easy access panels
💺 Operator Comfort	Class-leading cab with low noise & vibration
🔌 Electronics	Cat Product Link™ for remote monitoring & diagnostics
🛡️ Durability	Heavy-duty undercarriage, reinforced boom/arm
🔄 Versatility	Quick coupler, multiple attachment-ready
💰 Resale Value	Cat machines hold value extremely well

📊 Comparison: 336D vs Competitors

Model	Weight	Power	Bucket
Cat 336D	33.2T	313 hp	1.5 m³
Komatsu PC360LC-11	35.8T	275 hp	1.5 m³
Hitachi ZX350LC-5G	35.2T	267 hp	1.5 m³
Volvo EC350DL	34.8T	268 hp	1.4 m³
JCB JS330LC	33T	258 hp	1.4 m³

📈 The 336D generally offers more power and better fuel efficiency than most competitors in its class.

🔄 Successor: 336 GC / 336E2

Feature	336D	336 GC (Next Gen)
Engine	C9 ACERT	C7.1 / C9 (Stage V)
Power	313 hp	336 hp (C9)
Weight	33.2T	34.6T
Technology	Product Link	VisionLink® + Payload
Cab	LCD display	10" touchscreen, cameras
Emissions	Tier 3	Tier 4 Final / Stage V

💰 Approximate Pricing (Used Market, 2024)

Condition	Hours	Price Range (USD)
Good	3,000–5,000	$120,000 – $150,000
Fair	5,000–8,000	$85,000 – $120,000
High Hours	8,000–12,000+	$60,000 – $90,000

(Prices vary by region, condition, and configuration)

🏁 Summary

✅	The Cat 336D is...
✅	A powerful, fuel-efficient 33-tonne excavator
✅	Built for heavy-duty construction, mining & demolition
✅	Known for operator comfort, low noise, and durability
✅	One of the best-selling mid-size excavators ever made
✅	Holds excellent resale value in the used equipment market

🔑 Bottom Line: The Caterpillar 336D is widely regarded as one of the best mid-size excavators ever built — reliable, powerful, comfortable, and built to last. Even today (2024–2025), it remains a top choice on job sites worldwide. 🚜💪

Would you like more details on any specific aspect — such as maintenance schedule, attachments, or comparison with 336E2/GC? 😊