Isuzu Diesel Generators for Sale – 20kVA to 50kVA+
Rugged. Reliable. Ready When You Are.
At Sydney Diesel Centre, we proudly supply and support the full range of Isuzu diesel generators – engineered for durability, fuel efficiency, and low-noise operation. Whether you’re powering a worksite, a data centre, or a farm off-grid, there’s an Isuzu genset to keep your business moving.
Available Models
GSO20PTY – 20kVA Diesel Generator
Engine: Isuzu 4LE1, 4-cylinder, 2.2L
Output: 20kVA / 16kWe (prime)
Fuel Tank: 78L
Fuel Consumption @ 100% Load: 5.2L/hour
Noise Level: 51 dB(A) @ 7m
Dimensions (L x W x H): 1440 x 780 x 1140 mm
Weight: 699kg
Sockets: 1x 415V 20A (3PH), 3x 240V 15A (1PH)
Controller: ComAp MRS16 with remote start, fuel theft protection, RMS voltage & power measurement
Other Features:
– Naturally aspirated indirect injection
– Internal/external fuel switching
– Central lifting point
– Complete fuel filtration with water separation
– Emergency stop, battery isolator, air bleed switch
Do you require a quote or advice for a generator?
Call our team on (02) 9681 7700 or SMS US for more information.
GSO37PTY – 37kVA Diesel Generator
Engine: Isuzu 4JG1T, 4-cylinder, 3.059L
Output: 37kVA / 29.6kWe (prime)
Fuel Tank: 124L
Fuel Consumption @ 100% Load: 8.4L/hour
Noise Level: 51 dB(A) @ 7m
Dimensions: 1770 x 920 x 1350 mm
Weight: 1170kg
Sockets: 2x 415V 32A (3PH), 1x 415V 20A (3PH), 3x 240V 15A (1PH)
Controller: ComAp MRS16 with programmable PLC, load shedding, event log, remote monitoring
Other Features:
– Turbocharged direct injection
– Medium-duty air cleaner with restriction indicator
– Radiator-cooled, Tier-2 compliant
– Full engine and alternator protection
– Silent canopy & weather protection
Call our expert team on (02) 9681 7700 or SMS US for more information.
GSO50PTY – 50kVA Diesel Generator
Engine: Isuzu 4BG1T, 4-cylinder, 4.329L
Output: 50kVA / 40kWe (prime)
Fuel Tank: 160L
Fuel Consumption @ 100% Load: 11.8L/hour
Noise Level: 57 dB(A) @ 7m
Dimensions: 2000 x 950 x 1430 mm
Weight: 1431kg
Sockets: 1x 415V 50A, 1x 415V 32A, 1x 415V 20A, 3x 240V 15A
Controller: ComAp MRS16 with digital control, remote diagnostics, programmable load support
Other Features:
– Tier-2 turbocharged direct injection
– 24V electric start with dual batteries
– Central lifting, service access, external drain ports
– Premium weatherproof canopy
– Made in Japan for Australian conditions
Do you require a quote or advice for a generator?
Call our team on (02) 9681 7700 or SMS US for more information.
Need Help Choosing?
Download Our Generator Selection Guide (PDF)
Find the right generator for your business. This helpful guide walks you through:
– Load & application matching
– 1-phase vs. 3-phase requirements
– Sizing for business continuity
– Runtime vs. tank size balance
– Smart controller features
Do you require a quote or advice for a generator?
Call our team on (02) 9681 7700 or SMS US for more information.
Industry Applications
Isuzu diesel generators are used across critical industries:
| Industry | Applications |
|---|---|
| Construction | Temporary site power, tools, cranes, site sheds |
| Agriculture | Irrigation, cool rooms, pumps, dairy & harvesting |
| Emergency | Hospitals, aged care, response centres, remote clinics |
| Data & IT | Server rooms, UPS systems, critical backups |
| Facilities | Commercial buildings, HVAC, elevators, lighting |
| Hire & Events | Site power for remote events, film production, festivals |
Storm Season? Fire Risk? Remote Site?
Be prepared with a reliable backup generator that won’t let you down.
Why Buy From Sydney Diesel Centre?
Official Isuzu Power Solutions Dealer
Factory-trained technicians
On-site installation & commissioning
In-house diagnostics, spare parts & warranty support
Nationwide shipping + Capricorn Preferred Supplier
50+ years in diesel and generator expertise
Frequently Asked Questions (FAQs)
What size generator do I need for my business?
The right generator size depends on your total electrical load, whether you need single- or three-phase power, and how critical the application is. As a general guide:
- 20kVA suits small offices, mobile trades & small machinery
- 37kVA is ideal for cold storage, irrigation, and workshops
- 50kVA suits commercial sites, backup for buildings, and heavier machinery
What’s the difference between the GSO20PTY, GSO37PTY, and GSO50PTY models?
GSO20PTY: 20kVA / 16kWe, Isuzu 4LE1 engine, ultra-quiet 51dB
GSO37PTY: 37kVA / 29.6kWe, turbocharged, fuel-efficient 8.4L/h
GSO50PTY: 50kVA / 40kWe, larger fuel tank (160L), higher load support
Each model features ComAp digital controls, multiple 3-phase sockets, weatherproof canopy, and service-friendly design.
Are Isuzu generators really that quiet?
Yes. The GSO20PTY and GSO37PTY operate at just 51 dB(A) @ 7m, similar to a normal conversation. Even the GSO50PTY runs at only 57 dB(A), making Isuzu one of the quietest diesel generator solutions in its class — ideal for residential zones, events, and aged care.
Can these generators be used as backup power for outages?
Absolutely. All models include auto start/stop capability, digital controllers, and are compatible with transfer switches — making them perfect for standby use during blackouts, storms, or grid failures.
Are Isuzu generators weatherproof?
Yes. Each unit comes with a premium silent canopy and powder-coated, corrosion-resistant casing, designed to handle Australian weather conditions. They’re ready for outdoor use in rain, heat, and dust.
Can I monitor the generator remotely?
Yes. All models include the ComAp InteliLite MRS16 Controller with optional remote monitoring via app or cloud portal. You can track fuel levels, usage, and performance from your smartphone or desktop.
Where do you deliver Isuzu generators?
We are based in Sydney, NSW, and ship Isuzu diesel generators Australia-wide, including metro and regional areas. We also provide on-site support throughout Sydney and surrounding regions.
Do you require a quote or advice for a Isuzu Power Solutions product? Call our team on (02) 9681 7700 for a quote or to book a service.
We are an authorised dealer for Isuzu Power Solution, Kohler Engine and Kubota.