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D300 GC (60 Hz) Generator Set

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Caterpillar is leading the power generation marketplace with Power Solutions engineered to deliver unmatched flexibility, expandability, reliability, and cost-effectiveness.

Pricing: Contact for Pricing Why we quote: Cat® machines are often configured to your job (attachments, hydraulics, cab options) and freight/taxes can vary by location. Request a quote to get accurate pricing based on your exact setup—typically within 1–2 business days.

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    Duty Cycle Standby
    Emissions/Fuel Strategy EPA Stationary Emergency
    Frequency 60 Hz
    Maximum Rating 300 ekW
    Minimum Rating 300 ekW
    Speed 1800 rpm
    Voltage 208 to 600 Volts
    Aspiration Turbocharged Air-to-Air Aftercooled
    Bore 4.4in
    Compression Ratio 16.3:1
    Displacement 538in³
    Engine Model Cat® C9 In-line 6, 4-cycle diesel
    Fuel System HEUI
    Governor Type Adem™A4
    Stroke 5.9in
    Dry Weight - Genset (maximum) 6929.1lb
    Dry Weight - Genset (minimum) 5518.2lb
    Height - Maximum 86.7in
    Height - Minimum 67.2in
    Length - Maximum 155.5in
    Width - Maximum 56.7in
    Width - Minimum 56.3in

    Standard Equipment:

    • Aftercooler core
    • Turbocharger
    • Air cleaner - Non canister, disposable
    • GCCP 1.2
    • Jacket water pump, gear driven, centrifugal
    • Thermostats and housing
    • Coolant drain valve
    • Radiator sight gauge
    • Blower fan and fan drive with guards
    • Radiator, package mounted
    • Exhaust manifold - dry
    • Integral tank base, 24 hours, UL142
    • Fuel priming pump
    • Engine fuel transfer pump
    • Primary fuel filter w/integral water separator and secondary filter, spin on
    • Complete system designed & built at ISO 9001:2000 certified facilities
    • All protective devices and control functions simulated and checked
    • Factory tested to design specifications at full load conditions
    • IP23 Protection
    • 12 Leads
    • Insulation system, Class H
    • Standard winding protection for non-harsh environments with relative humidity ? 95%
    • Voltage regulator (single phase sensing)
    • Easy access to AVR and terminals
    • Terminal box, IP22 RHS facing, bottom cable entry
    • Brushless, self-excited 2/3 pitch (600V uses Internal excitation (IE))
    • Cat electronic governor (ADEM A4)
    • Shallow oil pan
    • Oil cooler
    • Fumes disposal to front of radiator
    • Oil drain with valve
    • Oil filler and dipstick
    • Oil filter, spin on
    • Lubricating oil, CK-4 (10W-30)
    • Captive linear vibration isolators between base and engine-generator
    • Includes lifting provisions and termination points for coolant and lube oil drain lines
    • Safety shutoff - High water temperature
    • Safety shutoff - Low oil pressure
    • Safety shutoff - Overspeed
    • 24-volt electric starting motor
    • 24V, 45 Amp Charging alternator
    • Lifting eyes
    • Vibration damper
    • Parts book

    Optional Equipment:

    • Air cleaner (Non canister disposable)
    • Integral tank base, 24 hours, UL142
    • Audio & visual fuel alarm (@90% fuel level)
    • Wide Base - Skid
    • Fuel tank pill pipe & lockable cap
    • 400A LSI
    • 600A LSI
    • 1200A LSI
    • 800A LS/I
    • Auxiliary contacts
    • 600A LS/I
    • 1200A LS/I
    • 400A LS/I
    • 800A LSI
    • Audible alarm Gp
    • 16 -light NFPA 99/110 Annunciator
    • Twist release, Red button emergency stop
    • Ground fault relay
    • 100A Load center
    • Product link remote monitoring hardware
    • 20A GFCI (Ground Fault Circuit Interrupter)
    • Volt free contacts
    • Sound attenuated Level 2 enclosure (White)
    • AC & DC Source lights
    • E-Stop
    • 6" Muffler - 25 dBA attenuation
    • Manifold and turbocharger guards
    • Flexible exhaust connection
    • Space heater
    • Permanent magnet excitation (PMG) generator
    • Battery charger (UL Certified)
    • Jacket water heater
    • Standard battery set: 1000 CCA, 90 amp/hr.
    • CSA Certification
    • Extended Service Coverage
    • UL2200 Certification
    • Generator test report

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    of the D300 GC (60 Hz) Generator Set

    What Our Customers Are Saying About Us

    Gregory Poole Equipment Company place picture
    4.0
    Based on 58 reviews
    powered by Google
    Tom Corona profile picture
    Tom Corona
    21:51 06 May 26
    Rich Stidd profile picture
    Rich Stidd
    22:10 02 May 26
    John Karpathian profile picture
    John Karpathian
    16:21 24 Jan 26
    Clean store and great employees
    Hunter Flaugher profile picture
    Hunter Flaugher
    12:56 06 Aug 25
    Hydraulic pump shop is unmatched. I made the mistake of going somewhere else before bringing my pump here. These guys were more than helpful and friendly. Went out of their way to help me find a solution for my problem even when it didn’t benefit them. This is how businesses should be run. I won’t go anywhere else.
    Brian Hrudka profile picture
    Brian Hrudka
    16:45 12 Feb 25
    Too bad Poole Cat Field Service is better at invoicing than actually getting my machines moving.

    A prompt and courteous technician arrived, and correctly diagnosed two problems with my mini Ex. Thank you. I corrected those problems, but machine still did not work.

    He diagnosed a fuel problem as a clogged filter, rather than a bad fuel pump which I managed to diagnose. I also figured out, via help on the internet, that the fuel shut-off solenoid was bad.

    Machine runs fine now. So my advice is to check the internet, before letting Poole charge you $870 for a two hour field visit. And you can find a perfectly fine aftermarket fuel pump for $20 rather than the $250 that Poole charges... and it arrives faster,
    Jacey Price profile picture
    Jacey Price
    21:04 05 Dec 24
    Need to teach a tech how to drive a service truck. Around 2:48 on highway 40 east, the truck pictured (plate ending in 8236) flew across 3 lanes of traffic to meet the Cleveland rd exit. Almost hit a semi and caused me to swerve with my children in the car. Glad making the exit was more important than children’s lives.
    David Lawrence profile picture
    David Lawrence
    13:04 22 Feb 24
    Brandon Pierce profile picture
    Brandon Pierce
    22:00 18 Feb 24
    Darin Noe profile picture
    Darin Noe
    01:17 16 Feb 24
    Jose Soto profile picture
    Jose Soto
    15:26 23 Sep 23
    Hunter Elliott profile picture
    Hunter Elliott
    16:17 07 Sep 23
    Rick Kelly-Crapse profile picture
    Rick Kelly-Crapse
    21:06 25 Aug 23
    They had all my parts for my 3208 Cat.
    Friendly folks at parts counter.