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The D Series incorporates innovations for improved performance and versatility.


Engine Model Cat® C7 ACERT™ Cat® C7 ACERT™ Less
Net Flywheel Power 188.0 hp 140.0 kW Less
Net Power - ISO 9249 188.0 hp 140.0 kW Less
Bore 4.33 in 110.0 mm Less
Stroke 5.0 in 127.0 mm Less
Displacement 439.4 in3 7.2 L Less
Cylinders 6 6 Less
Net Power - EEC 80/1269 188.0 hp 140.0 kW Less
Net Power - SAE J1349 186.0 hp 139.0 kW Less


Operating Weight 54660.0 lb 24790.0 kg Less
Operating Weight - Minimum 52602.0 lb 23860.0 kg Less
Operating Weight - Maximum 57871.0 lb 26250.0 kg Less
Operating Weight - Std. Undercarriage 54660.0 lb 24790.0 kg Less
Counterweight 9964.88 lb 4520.0 kg Less

Service Refill Capacities

Fuel Tank Capacity 137.0 gal 520.0 L Less
Cooling System 8.2 gal 31.0 L Less
Engine Oil 8.0 gal 30.0 L Less
Swing Drive 2.6 gal 10.0 L Less
Final Drive (each) 1.6 gal 6.0 L Less
Hydraulic System (including tank) 79.0 gal 300.0 L Less
Hydraulic Tank 38.0 gal 145.0 L Less

Swing Mechanism

Swing Speed 9.6 RPM 9.6 RPM Less
Swing Torque 54137.0 lb ft 73.4 kN·m Less


Maximum Drawbar Pull 51032.0 lb 227.0 kN Less
Maximum Travel Speed 3.4 mph 5.4 km/h Less

Hydraulic System

Main Implement System - Maximum Flow (2x) 58.0 gal/min 220.0 L/min Less
Max. Pressure - Equipment 5076.0 psi 35000.0 kPa Less
Max. pressure - Heavy Lift 5221.0 psi 36000.0 kPa Less
Max. Pressure - Travel 5076.0 psi 35000.0 kPa Less
Max. Pressure - Swing 3553.0 psi 24500.0 kPa Less
Pilot System - Maximum Flow 9.0 gal/min 32.4 L/min Less
Pilot System - Maximum Pressure 566.0 psi 3900.0 kPa Less
Boom Cylinder - Bore 5.3 in 135.0 mm Less
Boom Cylinder - Stroke 51.4 in 1305.0 mm Less
Stick Cylinder - Bore 5.5 in 140.0 mm Less
B1 Family Bucket Cylinder - Bore 4.7 in 120.0 mm Less
Stick Cylinder - Stroke 65.4 in 1660.0 mm Less
B1 Family Bucket Cylinder - Stroke 43.5 in 1104.0 mm Less
CB1 Family Bucket Cylinder - Bore 5.1 in 130.0 mm Less
CB1 Family Bucket Cylinder - Stroke 45.5 in 1156.0 mm Less
DB Family Bucket Cylinder - Bore 5.9 in 150.0 mm Less
DB Family Bucket Cylinder - Stroke 45.3 in 1151.0 mm Less
Main normal relief pressure 5076.0 psi 35000.0 kPa Less

Sound Performance

Performance ANSI/SAE J1166 APR 90 ANSI/SAE J1166 APR 90 Less


Brakes SAE J1026 APR90 SAE J1026 APR90 Less
Cab/FOGS SAE J1356 FEB88 SAE J1356 FEB88 Less


Standard w/Long Undercarriage 32.0 in 800.0 mm Less
Optional 28.0 in 700.0 mm Less
Optional - Double Grouser 23.62 in 600.0 mm Less
Number of Shoes (each side) - Long Undercarriage 51 51 Less
Number of Track Rollers (each side) - Long Undercarriage 8 8 Less
Number of Carrier Rollers (each side) - Long Undercarriage 2 2 Less
Ground Clearance - Fixed Gauge 17.32 in 440.0 mm Less


Transport width 133.46 in 3390.0 mm Less
Shipping Height 10.4 ft 3170.0 mm Less
Counterweight clearance 41.73 in 1060.0 mm Less

C7 with ACERT™ Technology

The Cat® C7 gives the 324D exceptional power and fuel efficiency unmatched in the industry for consistently high performance in all applications.


Cat® hydraulics deliver power and precise control to keep material moving.

Operator Comfort

Designed for comfort, simple and easy operation, the 324D allows the operator to focus on production.


324D structural components and undercarriage are the backbone of the machine's durability.

Booms, Sticks and Bucket Linkages

Built for Performance and long service life, Caterpillar® booms and sticks are large, welded, box-section structures with thick, multi-plate fabrications in high stress areas.

Work Tools - Attachments

The 324D has an extensive selection of work tools to optimize machine performance.


A wide variety of optional factory-installed attachments are available to enhance performance and improve job site management.

Service and Maintenance

Simplified service and maintenance features save you time and money.

Complete Customer Support

Cat® dealer services help you operate longer with lower costs.

324D L Standard Equipment

  • 65 Ampere alternator
  • Base machine light (frame)
  • Lights, cab mounted (Two)
  • Horn
  • Pre-start monitoring system - checks for low fluids

Operator Environment
  • Air conditioner, heater, defroster with automatic climate control
  • AM/FM Radio with antenna and 2 speakers
  • Ashtray with 24 volt lighter
  • Beverage/cup holder
  • Bolt-on Falling object Guarding System (FOGS) capability
  • Cab Glass Openable and retractable two- piece front windshield Shy-light, pop-up, polycarbonate
  • Coat hook
  • Floor mat
  • Instrument panel and gauges
  • Joysticks, console mounted, pilot operated
  • Light, interior
  • Literature compartment
  • Monitor, full graphic color display
  • Neutral lever (lock out) for all controls
  • Polycarbonate side windows
  • Positive filtered ventilation
  • Pressurized cab
  • Seat, suspension, with high back and head rest
  • Seat belt, retractable - 76 mm (3 in)
  • Storage compartment suitable for lunch box cooler
  • Sun shade (for skylight)
  • Travel control pedals with removable hand levers
  • Windshield wiper and washer (upper and lower)

Engine/Power Train
  • C7 with ACERT™ Technology
  • Automatic engine speed control with one touch low idle
  • Cooling
  • Electric priming pump
  • Straight line travel
  • Two-speed auto-shift travel
  • Water separator in fuel line

  • Grease lubricated track
  • Hydraulic track adjusters
  • Idler and center section track guards

Other Standard Equipment
  • Automatic swing parking brake
  • Auxiliary hydraulic valve
  • Capability of stackable valves (max of 3) for main valve
  • Capability of auxiliary circuit
  • Counterweight with lifting eyes
  • Door locks, cap locks and Caterpillar® one key security system
  • Fine swing control
  • Fully pressurized hydraulic system
  • Heavy lift
  • Mirrors (frame-right, cab left)
  • S•O•SSM quick sampling valves for engine and hydraulic oil
  • Travel alarm
  • Product Link PL321SR

324D L Optional Equipment

Front Linkage
  • Booms
  • Sticks
  • Bucket Linkage
  • Boom Lowering Control Device

  • Machine Security System
  • Power supply (12V-10 AMP)

  • Falling Object Guarding System (FOGS)
  • Front windshield guard
  • Heavy-duty bottom guards
  • Rubber bumpers
  • Track guiding guards
  • Vandalism guards

Operator Environment
  • Hand control pattern changer (ISO-SAE)
  • Rear window, secondary exit
  • Sunscreen - roller type
  • Seat, high back with air suspension and heater
  • Third pedal, straight travel

Engine/Power Train
  • High ambient cooling
  • Prefilter, air
  • Starting, Cold weather package

  • Track shoes
  • Heavy-duty rollers

Auxiliary Hydraulics
  • Hammer Circuit
  • Thumb Circuit
  • Tool Control System
  • Hydraulic pin grabber quick coupler and controller
  • Lines for booms and sticks

Work Tools
  • Wide offering of buckets, tips and sidecutters

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