325D L

The new 325D incorporates innovations for improved performance and versatility. The new C7 engine with ACERT™ Technology works at the point of combustion to optimize engine performance and provide low exhaust emissions to meet the emission regulations, with exceptional performance capabilities and proven reliability.

Engine Model Cat® C7 ACERT™
Net Flywheel Power 204 hp
Net Power - ISO 9249 204 hp
Bore 4.3 in
Stroke 5 in
Displacement 440 in3
Net Power - EEC 80/1269 204 hp
Net Power - SAE J1349 202 hp

Operating Weight 64460 lb
Operating Weight - Std. Undercarriage 64460 lb

Maximum Drawbar Pull 55977 lb
Maximum Travel Speed 3.3 mph

Hydraulic System
Main Implement System - Maximum Flow (2x) 62 gal/min
Max. Pressure - Equipment 5076 psi
Max. pressure - Heavy Lift 5221 psi
Max. Pressure - Travel 5076 psi
Max. Pressure - Swing 3989 psi
Pilot System - Maximum Flow 8.6 gal/min
Pilot System - Maximum Pressure 566 psi
Boom Cylinder - Bore 5.5 in
Boom Cylinder - Stroke 55.4 in
CB2 Family Bucket Cylinder - Bore 5.3 in
CB2 Family Bucket Cylinder - Stroke 46 in
DB Family Bucket Cylinder - Bore 5.9 in
DB Family Bucket Cylinder - Stroke 46 in

Service Refill Capacities
Fuel Tank Capacity 137 gal
Cooling System 7.9 gal
Engine Oil 7.9 gal
Swing Drive 2.6 gal
Final Drive (each) 1.6 gal
Hydraulic System (including tank) 82 gal

Sound Performance
Performance ANSI/SAE

Brakes SAE J1026 APR90
Cab/FOGS SAE J1356 FEB88 ISO 10262

Swing Mechanism
Swing Speed 10.2 RPM
Swing Torque 60628 lb ft

Standard w/Long Undercarriage 32 in
Optional 24 in
Optional 28 in
Optional 32 in
Number of Shoes (each side) - Long Undercarriage 50
Number of Track Rollers (each side) - Long Undercarriage 9
Number of Carrier Rollers (each side) - Long Undercarriage 2

Transport width 133.5 in

C7 with ACERT™ Technology
Built for power reliability, economy and low emissions.

C7 with ACERT™ Technology

Cat C7
The Cat C7 with ACERT™ Technology introduces a series of evolutionary, incremental improvements that provide breakthrough engine technology. The building blocks of ACERT Technology are fuel delivery, air management and electronic control. ACERT Technology optimizes engine performance while meeting U.S. EPA Tier 3 engine emission regulations.

ADEM™ A4 Engine Controller
The ADEM A4 electronic control module manages fuel delivery to get the best performance per liter of fuel used. The engine management system provides flexible fuel mapping, allowing the engine to respond quickly to varying application needs. It tracks engine and machine conditions while keeping the engine operating at peak efficiency.

Fuel Delivery
The Cat C7 features electronic controls that govern the fuel injection system. Multiple injection fuel delivery involves a high degree of precision. Precisely shaping the combustion cycle lowers combustion chamber temperatures, generating fewer emissions and optimizing fuel combustion. This translates into more work output for your fuel cost.

Cooling System
The cooling fan is directly driven from the engine. An electrically controlled viscous clutch fan is available as an attachment to reduce fan noise. The optimum fan speed is calculated based on the target engine speed, coolant temperature, hydraulic oil temperature and actual fan speed. The Cat C7 delivered a completely new layout that separates the cooling system from the engine compartment.

Air Cleaner
The radial seal air filter features a double-layered filter core for more efficient filtration and is located in a compartment behind the cab. A warning is displayed on the monitor when dust accumulates above a preset level.

Noise Reduction Technologies
The engine mounts are rubber-isolating mounts matched with the engine package. Further noise reduction has been achieved through design changes to the isolated top cover, oil pan, multiple injection strategy, insulated timing cover, sculpted crankcase and gear train refinements.

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


Component Layout
The hydraulic system and component locations have been designed to provide a high level of system efficiency. The main pumps, control valves and hydraulic tank are located close together to allow for shorter tubes and lines between components which reduces friction loss and pressure drops in the lines. The layout further provides greater operator comfort by placing the radiator on the cab side of the upper structure. This allows incoming air to enter the engine compartment from the operator side and hot air and corresponding engine sound to exit on the opposite side away from the operator. This reduces engine compartment heat and sound being transmitted to the operator.

Pilot System
The pilot pump is independent from the main pumps and controls the front linkage, swing and travel operations.

Hydraulic Cross Sensing System
The hydraulic cross sensing system utilizes each of two hydraulic pumps to 100 percent of engine power, under all operating conditions. This improves productivity with faster implement speeds and quicker, stronger pivot turns.

Boom and Stick Regeneration Circuit
Boom and stick regeneration circuit saves energy during boom-down and stick-in operation which increases efficiency, reduces cycle times and pressure loss for higher productivity, lower operating costs and increased fuel efficiency.

Auxiliary Hydraulic Valve
The auxiliary valve is standard on the 325D. Control Circuits are available as attachments, allowing for operation of high and medium pressure tools such as shears, grapples, hammers, pulverizers, multi-processors and vibratory plate compactors.

Hydraulic Cylinder Snubbers
Snubbers are located at the rod-end of the boom cylinders and both ends of the stick cylinders to cushion shocks while reducing sound levels and extending component life.

Operator Comfort
Designed for comfort, simple and easy operation, the 325D allows the operator to focus on production.

Operator Comfort

Operator Station
The workstation is spacious, quiet and comfortable, assuring high productivity during a long work day. The air conditioner and attachment switches are conveniently located on the right-hand wall, and the key switch and throttle dial are on the right-hand console.

The monitor is a full color 400x234 pixels Liquid Crystal Display (LCD) graphic display. The monitor angle can be adjusted to minimize sun glare and has the capability of displaying information in twenty-seven different languages.

Standard Cab Equipment
To enhance operator comfort and productivity, the cab includes a lighter, drink holder, coat hook, service meter, literature holder, magazine rack and storage compartment.

A new optional air suspension seat is available in the 325D. The standard and optional seats provide a variety of adjustments to suit the operator’s size and weight including fore/aft, height and weight. Wide adjustable armrests and a retractable seat belt are also included.

Joystick Control
Joystick controls have low lever effort and are designed to match the operator’s natural wrist and arm position. The operator can operate joystick controls with an arm on the armrest and the horizontal and vertical strokes have been designed to reduce operator fatigue.

Hydraulic Activation Control Lever
For added safety, this lever must be in the operate position to activate the machine control functions.

Automatic Climate Control
Fully automatic climate control adjusts temperature and flow, and determines which air outlet is best in each situation with a touch of a button.

Redesigned consoles feature a simple, functional design to reduce operator fatigue, ease of switch operation and excellent visibility. Both consoles have attached armrests with height adjustments.

Cab Exterior
The exterior design uses thick steel tubing along the bottom perimeter of the cab, improving the resistance of fatigue and vibration. This design allows the FOGS to be bolted directly to the cab, at the factory or as an attachment later, enabling the machine to meet specifications and job site requirements.

Cab Mounts
The cab shell is attached to the frame with viscous rubber cab mounts, which dampen vibrations and sound levels while enhancing operator comfort.

All glass is affixed directly to the cab for excellent visibility eliminating window frames. The upper front windshield opens, closes and stores on the roof above the operator with a one-touch action release system.

Pillar-mounted wipers increase the operator’s viewing area and offer continuous and intermittent modes.

An enlarged skylight with sunshade provides excellent visibility and ventilation.

325D structural components and undercarriage are the backbone of the machine's durability.


Robotic Welding
Up to 95% of the structural welds on a Caterpillar® Excavator are completed by robots. Robotic welds achieve over three times the penetration of manual welds.

Durable Cat® undercarriage absorbs stresses and provides excellent stability.

Booms, Sticks and Bucket Attachments
Designed for maximum flexibility, productivity and high efficiency on all jobs, the 325D offers a wide range of configurations suitable for a variety of applications.

Booms, Sticks and Bucket Attachments

Reach Boom
The reach boom features an optimum design that maximizes digging envelopes with three stick choices:

Mass Excavation Boom
The mass excavation boom maximizes productivity. The mass version offers significantly higher digging forces and allows use of larger buckets.

Super Long Reach
This configuration offers reaches to over 8.3 m (60 feet). It is well suited for ditch cleaning applications.

Linkage Pins
The bucket linkage pins have been enlarged to improve reliability and durability. All the pins in the front linkages have thick chrome plating, giving them high wear and corrosion resistance.

Bucket Linkage
The power link improves durability, increases machine-lifting capability in key lifting positions and with the integrated lift-eye it is easier to use than compared to the previous power link.

Work Tools - Attachments
The 325D has an extensive selection of work tools to optimize machine performance.

Work Tools - Attachments

Heavy Duty Buckets
Heavy-duty (HD) buckets are used for a wide range of moderately abrasive applications such as mixed dirt, clay and rock. HD buckets have best loading and dumping characteristics and will empty easier in cohesive material. More robust construction than the GP buckets.

General Purpose Capacity (GP-C) Buckets
General Purpose Capacity Buckets are best for digging in soft to hard ground with low to moderately abrasive materials.

Heavy-Duty Power (HDP) Buckets
For use in moderately abrasive applications where breakout force and cycle times are critical. Maximizes tip force and improves cycle times in most materials.

Heavy Duty Rock Buckets
Heavy-duty rock for aggressive bucket loading in highly abrasive application such as shot rock and granite. Features include:
  • Thicker wear plates to extend the life of bucket in severe applications
  • Side wear plated extend further up the side of the bucket for maximum protection in rocky soils
  • Buckets accept sidebar protectors for best sidebar protection, or side cutters for best fill characteristics and bucket wear protection

Ditch Cleaning (DC) Buckets
These wide shallow buckets are best for bank forming, ditch cleaning, and finishing.

Caterpillar Ground Engaging Tools (GET)
All bucket in the CB/DB Family utilize the Caterpillar K Series® GET. This GET system uses a vertical retainer that is easier to remove and install than the Cat J Series pin. The tip shapes are more aggressive and offer better penetration than the previous generation of tips. There are also a variety of side cutters and sidebar protectors to match operating conditions.

Caterpillar® Vibratory Plate Compactors provide superior compaction force in a reliable, low-maintenance package. These units produce high-power impulses at a rate of 2,200 impacts per minute. The forces generated by this vibration drive soil particles close together for solid, stable compactions. Whether in a trench or on a slope, driving sheeting or posts, Cat Compactors are the superior choice for any job site’s compaction tasks.

Multi-processors do the work of many types of demolition tools by use of interchangeable jaw sets. Changing jaws allows a single unit to crush, pulverize and perform a variety of specialized cutting tasks, such as cutting steel rebar and tanks.

A wide fariety of optional factory-installed attachments to enhance Performance and improve job site management.


Tool Control System
This system offers the most flexibility and versatility of the auxiliary options offered. This system is available in two configurations, as a stand-alone system or with a medium pressure circuit and third pump. This system is capable of running either one-way or two-way tools and one one-pump or two pump tools. The additional of the medium pressure circuit allows use of tools that rotate such as grapples, shears or multi-processors. Up to 10 different tool settings can be pre-programmed and selected through the monitor.

Auxiliary Hydraulics Options
There are four different options that can be factory installed to meet the various demands for hydra-mechanical tools. Single-Function, Double-Function, Tool Control System without Medium Pressure and Tool Control System with Medium Pressure are available as a factory installed option.

Machine Security
An optional Machine Security System is available from the factory on the 325D L. This system controls when the machine can be operated and utilizes specific keys to prevent unauthorized machine use, a significant theft deterrent.

Product Link
The machine is pre-wired to accept Product Link systems to be installed in the field. Product Link is also available as a factory installed attachment. Product Link can assist with Fleet Management that will keep track of hours, location, security and product health.

Increases versatility of the excavator by allowing the machine to pick up a wide variety of work tools without leaving the cab.

Caterpillar Grapples replace the bucket on Caterpillar Excavators, converting them to the ideal machine for handling loose material, sorting trash and demolition site cleanup. An array of styles and sizes are available to match the task at hand.

Service and Maintenance
Simplified service and maintenance features save you time and money.

Service and Maintenance

Ground Level Service
The design and layout was made with the service technician in mind. Many service locations are easily accessible at ground level allowing critical maintenance to get done quickly and efficiently.

Air Filter Compartment
The air filter features a double-element construction for superior cleaning efficiency. When the air cleaner plugs, a warning is displayed on the monitor screen inside the cab.

Pump Compartment
A service door on the right side of the upper structure allows ground-level access to the pump and pilot filter.

Radiator Compartment
The left rear service door allows easy access to the engine radiator, oil cooler and air-to-air-after-cooler. A reserve tank and drain cock are attached to the radiator for simplified maintenance.

Capsule Filter
The hydraulic return filter, a capsule filter, is situated outside the hydraulic tank. This filter prevents contaminants from entering the system when hydraulic oil is changed and keeps the operation clean.

Greasing Points
A concentrated remote greasing block on the boom delivers grease to hard-to-reach locations on the front.

Fan Guard
Engine radiator fan is completely enclosed by fine wire mesh, reducing the risk of an accident.

Anti-Skid Plate
Anti-skid plate covers top of storage box and upper structure to prevent slipping during maintenance.

Diagnostics and Monitoring
The 325D is equipped with S•O•SSM sampling ports and hydraulic test ports for the hydraulic system, engine oil, and for coolant. A test connection for the Cat Electronic Technician (Cat ET) service tool is located in the cab.

Extended Service Interval
325D service and maintenance intervals have been extended to reduce machine service time and increase machine availability.

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

Complete Customer Support

Product Support
You will find nearly all parts at our dealer parts counter. Cat® dealers utilize a worldwide computer network to find in-stock parts to minimize machine down time. Save money with remanufactured components.

Machine Selection
Make detailed comparisons of the machines you are considering before you buy. What are the job requirements, machine attachments and operating hours? What production is needed? Your Cat dealer can provide recommendations.

Customer Support Agreements
Cat dealers offer a variety of product support agreements, and work with customers to develop a plan the best meets specific needs. These plans can cover the entire machine, including attachments, to help protect the customer’s investment.

Improving operating techniques can boost your profits. Your Cat dealer has videotapes, literature and other ideas to help you increase productivity, and Caterpillar offers certified operator training classes to help maximize the return on your investment.

Maintenance Services
Repair option programs guarantee the cost of repairs up front. Diagnostic programs such as Scheduled Oil Sampling, Coolant Sampling and Technical Analysis help you avoid unscheduled repairs.

Repair, rebuild, or replace? Your Cat dealer can help you evaluate the cost involved so you can make the right choice.

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
  • 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")
  • 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
  • Track Shoes - 800 mm (32") triple grouser
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
  • Wiring provision for Product Link

Optional Equipment

Front Linkage
  • Booms
  • Sticks
  • Bucket Linkage
  • Boom Lowering Control Device
  • Product Link (PL121SR/PL321SR)
  • Machine Security System (MSS)
  • Power Supply (12V-10 Amp)
  • Falling Object Guarding System (FOGS)
  • Heavy-Duty Bottom Guards
  • Rubber Bumpers (side)
  • Track Guiding Guards
  • Vandalism Guards
Operator Environment
  • Hand Control Pattern Changer (ISO-SAE)
  • Rear window, secondary exit
  • Sun screen - 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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