Used Caterpillar 329DExcavator

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📌 1. OVERVIEW

Item	Detail
Manufacturer	Caterpillar Inc.
Model	329D (D-Series)
Class	Medium-Sized Hydraulic Excavator (20–30 ton class)
Production Years	~2008 – 2015
Successor	Cat 329 GC / 329D2
Primary Use	General construction, road building, demolition, landscaping, mining, utility work

The Cat 329D is one of the most popular mid-size excavators in Caterpillar's lineup, known for its balance of power, efficiency, and versatility. It sits between the smaller 320D and larger 330D in the D-series range.

📌 2. ENGINE SPECIFICATIONS

Specification	Detail
Engine Model	Cat C4.4 ACERT®
Type	4-cylinder, turbocharged, aftercooled diesel
Displacement	4.4 L (268 cu in)
Rated Power	156 kW (209 hp) @ 2,200 rpm
Peak Torque	~792 N·m (584 lb-ft) @ 1,600 rpm
Emissions Standard	EPA Tier 3 / EU Stage IIIA (ACERT technology)
Fuel Tank Capacity	~400 L (106 US gal)
Cooling System	Pressurized, separate circuits for engine & hydraulics

✅ The ACERT® (Advanced Combustion Emission Reduction Technology) ensures clean emissions while maintaining strong fuel efficiency.

📌 3. OPERATING WEIGHT & DIMENSIONS

Specification	Detail
Operating Weight	28,960 – 30,250 kg (63,840 – 66,700 lbs)
Transport Length	~9,870 mm (32.4 ft)
Transport Width	~2,990 mm (9.8 ft)
Transport Height	~3,140 mm (10.3 ft)
Track Gauge	2,490 mm (8.2 ft)
Ground Clearance	~440 mm (17.3 in)
Track Length on Ground	~3,750 mm (12.3 ft)
Tail Swing Radius	~2,850 mm (9.35 ft) — Zero Tail Swing

✅ The Zero Tail Swing design means the upper structure doesn't swing beyond the track width — ideal for tight urban workspaces.

📌 4. HYDRAULIC SYSTEM

Specification	Detail
Pump Type	Variable displacement piston pump
System Pressure	34.5 MPa (5,000 psi)
Hydraulic Flow	2 × 160 L/min (42.3 GPM)
Total Hydraulic Flow	~320 L/min (84.6 GPM)
Hydraulic Tank	~140 L (37 US gal)

📌 5. PERFORMANCE (DIGGING CAPABILITIES)

Specification	Detail
Max Digging Depth	7,190 mm (23.6 ft)
Max Reach (Ground Level)	9,970 mm (32.7 ft)
Max Dumping Height	7,420 mm (24.3 ft)
Max Digging Reach (10 ft level)	~9,500 mm (31.2 ft)
Max Vertical Wall Digging	~5,650 mm (18.5 ft)
Bucket Capacity (SAE)	0.96 – 1.65 m³ (1.25 – 2.16 cu yd)
Bucket Capacity (ISO)	0.92 – 1.45 m³ (1.2 – 1.9 cu yd)
Max Breakout Force (Arm)	~117 kN (26,300 lbf)
Max Breakout Force (Bucket)	~141 kN (31,700 lbf)
Swing Speed	10.5 rpm
Travel Speed	5.1 km/h (3.2 mph)
Gradeability	70% (35°)
Climbing Ability	60%

📌 6. UNDERCARRIAGE

Specification	Detail
Track Type	Steel, triple-grouser (option: single or double grouser)
Track Width	600 mm (23.6 in)
Shoe Count	45 shoes per side
Ground Pressure	~49 kPa (7.1 psi)

✅ Wide tracks + low ground pressure = excellent stability and minimal ground disturbance.

📌 7. CAB & OPERATOR COMFORT

Feature	Detail
Cab Type	ROPS/FOPS certified, pressurized & filtered
Climate Control	Auto-climate control with AC & heating
Seat	Air-suspended, heated, adjustable with armrests
Display	LCD monitor with real-time diagnostics, fuel info, machine health
Controls	Joystick with programmable buttons, auxiliary hydraulics
Noise Level	~72 dB(A) — relatively quiet for its class
Visibility	Excellent all-around visibility with large glass areas
USB/Audio	Radio with MP3/USB, Bluetooth option
Camera	Rear-view camera available

✅ The 329D cab is considered one of the best in its class for operator comfort.

📌 8. TECHNOLOGY & SMART FEATURES

Technology	Description
Cat Product Link™	Remote machine monitoring via satellite — tracks location, hours, fuel, diagnostics
Cat GRADE with 2D	Optional integrated GPS grading system for blade/bucket control
Cat PAYLOAD	Real-time bucket payload weighing — prevents overloading
Eco Mode	Reduces engine RPM when full power isn't needed — saves up to 15% fuel
Power Modes	L1, L2, L3 — adjustable power levels for different tasks
Auto Engine Idle Shutdown	Engine auto-shuts off after 5 min idle — saves fuel & reduces emissions
Auto Swing Assist	Reduces swing deceleration for faster cycle times
Stick Boost & Arm Boost	Automatic power boost for heavy digging

📌 9. FUEL EFFICIENCY

Mode	Fuel Consumption (approx.)
Eco Mode (idle/light work)	~10–12 L/hr (2.6–3.2 gal/hr)
Standard Digging	~18–22 L/hr (4.8–5.8 gal/hr)
Heavy Digging	~25–30 L/hr (6.6–7.9 gal/hr)
Average (8-hr day)	~150–180 L (40–48 gal)

✅ Compared to predecessors, the 329D offers ~10–15% better fuel economy thanks to ACERT engine + Eco mode.

📌 10. ATTACHMENTS & VERSATILITY

The 329D is a true workhorse — quick coupler system allows fast attachment changes:

Attachment	Application
🪣 Bucket (various sizes)	General digging, loading
🔨 Hydraulic Hammer	Demolition, rock breaking
✂️ Hydraulic Shear	Steel cutting, demolition
🔧 Thumb	Pipe handling, log grabbing
🌲 Grapple	Log handling, waste management
🔩 Auger	Post hole drilling, piling
🧹 Rake	Landscaping, leveling
🚜 Tiltrotator	360° rotation for any attachment
🪨 Ripper	Hard ground breaking
🧹 Sweeper	Road cleaning
🏗️ Blade	Grading, dozing (with dozer blade)

📌 11. MAINTENANCE

Item	Interval
Engine Oil Change	Every 500 hrs (or 1,000 hrs with Cat oil)
Hydraulic Oil Change	Every 2,000 hrs
Fuel Filter	Every 500 hrs
Track Tension Check	Every 250 hrs
Grease Points	~12 daily lubrication points (auto-lube available)
DPF Regeneration	Automatic (for Tier 4 models)

✅ Ground-level service points make daily maintenance fast and easy. Service intervals are longer than competitors = lower cost of ownership.

📌 12. COMPETITORS

Competitor	Model	Operating Weight	Power
🇯🇵 Komatsu	PC290LC-11	~29,000 kg	162 kW (217 hp)
🇯🇵 Hitachi	ZX290LC-6	~28,500 kg	155 kW (208 hp)
🇰🇷 Doosan	DX290LC-9	~28,500 kg	155 kW (208 hp)
🇯🇵 Kobelco	SK290LC-10	~29,000 kg	154 kW (207 hp)
🇸🇪 Volvo	EC290DL	~28,600 kg	155 kW (208 hp)

📌 13. PROS & CONS

✅ PROS	❌ CONS
Excellent fuel efficiency (Eco mode)	Higher purchase price than some Asian brands
Zero tail swing — great for urban work	Parts can be expensive
Superior cab comfort & low noise	Heavier than some competitors
Strong hydraulics & breakout force	D-series being phased out (parts availability long-term)
Excellent resale value	ACERT/DPF system requires proper maintenance
Cat dealer network worldwide	Learning curve for Cat technology systems
Highly reliable & durable	—

📌 14. PRICE (Approximate — Varies by Region & Condition)

Condition	Price Range (USD)
New (when available)	$180,000 – $220,000
Used (2010–2015, 5,000–8,000 hrs)	$80,000 – $130,000
Used (10,000+ hrs)	$55,000 – $85,000

📌 15. SUMMARY

Category	Rating
💪 Power	⭐⭐⭐⭐ (209 hp — excellent for 30t class)
⛽ Efficiency	⭐⭐⭐⭐⭐ (Best-in-class fuel economy)
🪑 Comfort	⭐⭐⭐⭐⭐ (Premium cab experience)
🔧 Reliability	⭐⭐⭐⭐⭐ (Cat quality & durability)
💰 Value	⭐⭐⭐⭐ (Higher upfront, lower TCO)
🔄 Versatility	⭐⭐⭐⭐⭐ (Hundreds of attachment options)

🏁 CONCLUSION

The Caterpillar 329D is a benchmark medium excavator — combining powerful performance, class-leading fuel efficiency, operator comfort, and unmatched versatility. Whether you're doing road construction, demolition, utility work, or landscaping, the 329D delivers consistent, reliable performance with lower operating costs than most competitors.

🏆 "The 329D is the excavator that contractors keep buying because it just works — day after day, year after year."

Would you like me to go deeper into any specific area — like comparison with 329D2, attachment selection, or buying tips? 🚜

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Used Caterpillar 329DExcavator

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We guarantee the quality of each machine and promise to offer you the most favorable price.

Used Caterpillar 329DExcavator

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We guarantee the quality of each machine and promise
to offer you the most favorable price.