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Komatsu PC45R Mini Excavator Specs and Parts

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Komatsu PC45R Mini Excavator Specs and Parts
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PC45R
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Komatsu PC45R Mini Excavator Specs and Parts
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Komatsu PC45R Mini Excavator Specs and Parts
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Part # Komatsu PC45R Mini Excavator Specs and Parts

Description:

Serial Number Information

The serial number plate is typically found on the left side of the machine frame below the cab or near the hydraulic pump cover.

Use your serial number to confirm compatibility for engine, hydraulics, undercarriage, and cab components.


Key Specifications

Feature Specification
Engine Model Komatsu 4D88E-5, 4-cylinder diesel
Emissions Tier Tier 4 Final compliant
Net Power 38.6 HP (28.8 kW) @ 2,200 RPM
Operating Weight 10,296 lbs (4,670 kg)

Digging & Reach

Feature Specification
Bucket Capacity 0.06 – 0.24 cubic yards
Maximum Dig Depth 12 ft 10 in (3.91 m)
Max Reach at Ground Level 20 ft 4 in (6.2 m)

Hydraulic & Travel Specs

Feature Specification
Hydraulic Flow 20.2 GPM (76.5 L/min)
Swing Speed 10.3 RPM
Travel Speed – High 2.9 mph (4.7 km/h)
Travel Speed – Low 1.5 mph (2.4 km/h)

Key Features

Compact Radius Design

The PC45R’s reduced tail swing allows it to operate effectively in narrow spaces like urban lots, road shoulders, or residential construction zones.

Efficient Tier 4 Engine

The 4D88E-5 engine delivers 38.6 HP with smooth throttle response and fuel efficiency, meeting Tier 4 Final regulations for emissions compliance.

Strong Digging Performance

With a maximum dig depth of nearly 13 feet and 0.24 yd³ bucket capacity, the PC45R can tackle trenching, utility installation, and site cleanup with ease.

Smooth, Responsive Hydraulics

A 20.2 GPM hydraulic system provides controlled lifting, swinging, and bucket operation—ideal for precise, low-effort maneuvering.


Common Replacement Parts

Maintain optimal performance with parts available at Broken Tractor:

Engine Components

Fuel injectors, glow plugs, turbochargers, thermostats, oil filters

Hydraulics

Control valves, main pump, boom/arm cylinders, hose assemblies

Swing & Travel System

Swing motors, swing bearing, final drive motors, track tensioners

Undercarriage

Rubber tracks, idlers, rollers, sprockets, bottom track rollers

Cab & Electrical

Monitor displays, joysticks, seat kits, ignition switches, relays


Maintenance Schedule

Task Recommended Interval
Engine Oil & Filter Every 250 hours
Fuel & Air Filter Replacement Every 250 hours
Hydraulic Oil & Filter Every 500 hours
Swing Bearing Lubrication Weekly
Track Tension Check Weekly or after rocky terrain use
Cooling System Flush Annually or every 1,000 hours
Out of Stock

This item is OUT OF STOCK and must be special ordered.
Please call us to check availability.

Can’t Find What You’re Looking For?

Our knowledgeable staff will be happy to help you with any of your tractor, backhoe, dozer, or engine parts needs.

1-800-909-7060 Parts Request Form

FEATURED PRODUCTS

Shipping & Return Policy

Do you need your part quickly? You're in luck! We have warehouses all over the country to ensure a quick and easy delivery time. Most of our parts ship from our warehouses the same day you place your order. And many times, orders are delivered in Two to Three days.

Our in house parts are manufactured following strict quality standards in our warehouse in Ohio. Parts such as hydraulic cylinders, pins, bushings, sheet metal, track adjusters, booms and dipper sticks are all ready to ship same day that they are purchased! With less time to wait for your shipment, you will be able to get back to work as quickly as possible.

Did you accidentally purchase the incorrect part? We offer returns and exchanges here at Broken Tractor. To proceed with a return, please call us toll free, and we will provide you with return authorization and a step by step return process for your convenience. We are more than happy to help you exchange your part for the correct one! Give us a call at 1-800-909-7060 and we would be pleased to help you.

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