Used Caterpillar 336DExcavator

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📋 OVERVIEW

The Cat 336D (and its updated successor 336D2) is a mid-to-large size hydraulic excavator in Caterpillar's renowned D Series lineup. It sits between the smaller 330D and the larger 340D, making it one of the most popular and versatile machines in the 36–37 tonne class. Widely used in construction, mining, road building, demolition, and landscaping, it is known for its power, durability, fuel efficiency, and operator comfort.

Feature	336D (Original)	336D2 (Updated)
Introduced	~2007	~2014
Series	D Series	D2 Series
Operating Weight	~36,900–37,200 kg (81,350–82,000 lbs)	~37,000 kg (81,570 lbs)
Net Power	186 kW (249 hp)	186 kW (249 hp)
Bucket Range	1.1–1.5 m³ (1.4–2.0 yd³)	1.1–1.5 m³ (1.4–2.0 yd³)

⚙️ ENGINE — C7.1 ACERT®

Specification	Details
Engine Model	Caterpillar C7.1 ACERT®
Type	6-cylinder, in-line, turbocharged diesel
Displacement	7.1 L (434 in³)
Net Power	186 kW (249 hp) @ 2,000 rpm
Torque	~970 Nm (715 lb-ft) @ 1,400 rpm
Emission Standard	EPA Tier 4 Final / EU Stage IV
Aftertreatment	SCR (Selective Catalytic Reduction) using DEF (Diesel Exhaust Fluid) — NO DEF = No start (safety feature)
Fuel Tank Capacity	~600 L (158 gal)
Cooling System	Pressurized, 67 L (17.7 gal)

✅ The ACERT technology optimizes combustion for better fuel efficiency (~5–10% improvement over previous 336C) and lower emissions without sacrificing power.

🔧 HYDRAULIC SYSTEM

Specification	Details
Pump Type	Variable displacement piston pumps
System Pressure	350 bar (5,076 psi)
Total Flow	~570 L/min (150 gal/min)
Auxiliary Hydraulic Flow	~118 L/min (31 gal/min) — for attachments (hammers, grapples, etc.)
Swing System	Variable speed, pressure-compensated
Travel Motors	Variable displacement piston motors

📐 DIMENSIONS & PERFORMANCE

Specification	Value
Operating Weight	~36,900–37,200 kg (81,350–82,000 lbs)
Ground Pressure	~50 kPa (7.2 psi)
Max Digging Depth	~7,260 mm (23.8 ft)
Max Reach (Ground Level)	~10,100 mm (33.1 ft)
Max Digging Height	~9,900 mm (32.5 ft)
Max Dump Height	~7,060 mm (23.2 ft)
Max Vertical Wall Dig	~6,550 mm (21.5 ft)
Travel Speed	5.0 km/h (3.1 mph)
Gradeability	70% (35°)
Swing Speed	8.0 rpm
Tail Swing Radius	~2,990 mm (9.8 ft)

🪣 BUCKET CONFIGURATIONS

Bucket Type	Capacity
Standard (General Purpose)	1.1 – 1.5 m³ (1.4 – 2.0 yd³)
Heavy Duty / Rock	0.9 – 1.2 m³ (1.2 – 1.6 yd³)
Long Reach (336DL variant)	0.8 – 1.0 m³
Tilting / Grading	1.2 – 1.5 m³

🖥️ CAB & OPERATOR COMFORT

The 336D/D2 features Caterpillar's advanced cab designed for all-day comfort:

Feature	Details
Certification	ROPS/FOPS (Rollover & Falling Object Protection)
Climate Control	Fully automatic air conditioning & heating
Seat	Air-suspended, heated, with armrests
Display	7" (D) / 8" (D2) color touchscreen monitor with machine info, diagnostics, camera feeds
Controls	Electro-hydraulic joystick controls (thumb-operated)
Noise Level	~72 dB(A) — relatively quiet for its class
Visibility	Excellent all-round visibility with large glass areas
Storage	Ample storage compartments, cup holders, USB ports

🧠 TECHNOLOGY & SMART FEATURES

Technology	Description
📡 Cat Product Link™	Built-in telematics — real-time machine tracking, diagnostics, utilization reporting via VisionLink®
📐 Cat Grade with 2D/3D	GPS/GNSS-based grading system for automatic blade/bucket control — accuracy to ±25mm (±1 inch)
📷 Cat Vision (D2)	Rear-view & side-view camera system with wash, displayed on the in-cab monitor
🌿 Eco Mode	Automatically reduces engine RPM when full power isn't needed — saves 5–15% fuel
💤 Auto-Idle	Engine automatically reduces to idle after preset inactivity — saves fuel & reduces noise
🛡️ Security	Caterpillar Security System with password-protected start, immobilizer
🔧 Remote Flash	Software updates can be done remotely via Product Link

🔌 ATTACHMENTS & VERSATILITY

The 336D is a highly versatile platform compatible with a wide range of Cat and third-party attachments:

Attachment	Application
🔨 Hydraulic Breaker (Hammer)	Rock breaking, demolition
🦷 Ripper (Single Shank)	Hard ground, frozen material
🪣 Grapple (Orange Peel / Sorting)	Scrap handling, material sorting
🪚 Hydraulic Shear	Demolition, scrap cutting
🔩 Thumb	Pipe handling, log gripping
🏗️ Tilting Rotator	Pipe laying, forestry, versatile digging
🧹 Quick Coupler	Fast attachment changeover
📦 Bucket options	GP, rock, HD, tilt, long reach, cleaning

The Quick Coupler system allows attachment changes in under 2 minutes without leaving the cab.

📊 COMPARISON WITH COMPETITORS

Spec	Cat 336D/D2	Komatsu PC360	Volvo EC380D	Hitachi ZX350
Power	249 hp	261 hp	272 hp	261 hp
Weight	~37,000 kg	~36,400 kg	~38,000 kg	~35,000 kg
Bucket	1.1–1.5 m³	1.2–1.6 m³	1.1–1.5 m³	1.1–1.4 m³
Max Depth	7.26 m	7.37 m	7.44 m	7.24 m
Key Advantage	Technology, dealer network, resale value	Fuel efficiency	Operator comfort	Lower weight

💰 APPROXIMATE PRICING (2024 estimates)

Configuration	Price Range (USD)
New 336D2	$280,000 – $380,000 (depending on config)
Used (2015–2020)	$150,000 – $250,000
Rental (daily)	$1,200 – $1,800/day
Rental (monthly)	$8,000 – $14,000/month

(Prices vary by region, configuration, hours, and market conditions)

🏗️ TYPICAL APPLICATIONS

Industry	Use Case
🏗️ General Construction	Foundation excavation, trenching, utility work
🛣️ Road Building	Grading, ditch cleaning, pipe laying
⛰️ Mining & Quarrying	Loading trucks, bench digging, stockpiling
🏚️ Demolition	Building teardown with breaker/shear
🌲 Forestry	Land clearing, stump removal
🌊 Dredging	Channel maintenance (with long reach)
🏭 Landscaping	Large-scale earthmoving, pond digging

✅ KEY STRENGTHS (WHY IT'S POPULAR)

✅ Strength	Details
💪 Powerful & Efficient	249 hp with excellent fuel economy (~20–25 L/hr)
🔧 Reliable	C7.1 engine is proven — 15,000+ hour life expected
🧠 Smart Technology	Product Link, Grade, Vision — industry leading
🛋️ Operator Comfort	One of the best cabs in its class
📈 Resale Value	Caterpillar holds value better than most brands
🌐 Dealer Network	Largest construction equipment dealer network worldwide
🔄 Versatile	Compatible with 100+ attachments

📝 SUMMARY

Category	Rating (out of 5)
Power	⭐⭐⭐⭐⭐
Fuel Efficiency	⭐⭐⭐⭐
Operator Comfort	⭐⭐⭐⭐⭐
Technology	⭐⭐⭐⭐⭐
Durability/Reliability	⭐⭐⭐⭐⭐
Resale Value	⭐⭐⭐⭐⭐
Versatility	⭐⭐⭐⭐⭐

🎯 The Cat 336D/D2 is one of the best all-round mid-size excavators in the world — combining Caterpillar's legendary reliability with modern smart technology, making it a top choice for contractors worldwide.

Would you like more details on any specific aspect — like comparison with 336DL, maintenance schedules, or attachment recommendations? 🚜