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NPI — NexSource Power Inc.
Used generator sales · Diesel

Used diesel generators for sale in Alberta.

Diesel sets that have already done some work, sold from our yard in Red Deer. Each listing says what we know about its hours and condition, and the quote puts a price on that exact unit.

Not set on used? Every diesel set we sell is on diesel generators for sale. Running on gas instead? See used natural gas generators.

Used 150 kW Diesel Generator
Used 150 kW Diesel Generator150 kW · 277/480 VOpen the full listing
In the yard now

Used diesel sets on offer.

This list reads from the same sale inventory as used generators for sale, filtered to diesel units the listing describes as used. Under each one is what the listing records about its condition, hours and fuel tank.

A listing is where the conversation starts. The meter reading on the day, the exact equipment included and whether the set is still available are confirmed in the written quote.

Before you buy

Six things to check on a used diesel.

A diesel engine shows its history if you know where to look. Take this list to the inspection, or ask for the answers in writing before you visit.

Hours and rebuilds

Get the current meter reading and, if the engine has been rebuilt, the reading at the time and a list of what was replaced. A rebuild that covered only the top end is a different purchase from a full in-frame overhaul.

Previous duty

Find out whether the set carried a steady working load, sat on standby or spent years idling. Light-load running leaves fuel residue in the exhaust and cylinders, and it is worth knowing before you buy rather than after.

Fuel system and tank

Ask about the injectors, filters and any water found in the fuel. If a base or trailer tank comes with the set, check its capacity, whether it is double-walled and what state the inside is in.

Cooling and starting

Look at the coolant, radiator and hoses, then the batteries, charger and block heater. In Alberta a generator that cannot start cold is no use, whatever it does once it is warm.

The generator end

Read the alternator data plate and match the voltage and phase to your loads. Ask whether the windings have been insulation tested and whether the voltage regulator and breaker have been replaced.

Emissions label

If your project or client specifies an emissions tier, read it off the engine label for that unit and have it written on the quote. Do not assume it from the model or the year.

Seeing it carry a load tells you more than any record. We keep a load-bank fleet, so a test run can be arranged for the set you are considering once the load and duration are agreed. Weighing up used against new more broadly? Read the new vs. used buying guide.

Diesel or gas

Where a used diesel makes sense.

Diesel suits a site with no gas supply, a set that moves from job to job, and standby power for a building that needs to start on its own fuel when the grid drops. Fuel is delivered by truck and stored on site, and the engine takes a full load quickly.

Where a site has pipeline or lease gas and the set will run for months at a time, a gas engine usually costs less to fuel and spares you the deliveries. Our used natural gas generators cover that side, and natural gas vs. diesel compares the two at larger sizes.

What the quote covers

One price, with the scope written down.

Pick a listing, or tell us the load if you are still deciding on a size. The quote names the unit and lists exactly what comes with it.

Check that the trailer, enclosure, fuel tank, breaker and controller shown on the listing are part of the sale. Transport, a transfer switch, distribution and commissioning can be added, but each should appear as its own line.

Any warranty or sale terms belong on paper too. A used listing on its own does not promise a warranty, a refurbishment standard or a delivery date, so ask and have the answer written in.

For sets in every condition, see diesel generators for sale, or go back to all used generators to compare both fuels.

Used diesel questions

What buyers usually ask.

Which used diesel generators do you have for sale right now?

Every set on this page comes from our sale inventory and is described in its listing as used. Stock sells and new units arrive, so the list can be short. If nothing here fits, call (403) 887-4567 with the size and voltage you need and ask what is coming in, or browse every diesel set for sale regardless of condition.

What does a used diesel generator cost in Alberta?

We quote each set individually rather than publishing a price. Output, hours, rebuild history, voltage, enclosure, trailer and fuel tank all move the figure, and so does what you need delivered with it. Name the listing, or describe the load, and the price comes back in writing for that specific unit.

How many hours is too many on a used diesel generator?

There is no single cut-off. A diesel that has run steadily under a healthy load can be in better shape at high hours than one that idled for years on standby. Ask for the meter reading, any rebuild and what it covered, and how the set was used before. Those three answers together say more than the number alone.

What is wet stacking, and should I worry about it on a used set?

A diesel that runs for long stretches at a very light load does not burn its fuel completely, and the residue builds up in the exhaust and cylinders. It shows as black, oily residue at the stack. Ask how heavily the set was loaded in its previous job, and look for that residue when you inspect it. A load-bank run is the usual way to see how it performs under real load.

Can I load test a used diesel generator before I buy it?

Ask when you first get in touch. We keep load banks in our rental fleet, so a run under load can be discussed for the set you are looking at. Agree the load, how long it runs, what is recorded and any charge before the visit, and ask for the readings afterward.

Is a used diesel ready for an Alberta winter?

Ask about the specific unit. Check whether it has a block heater and what condition the batteries and charger are in, and plan for winter-grade fuel from your supplier. A set that will sit outside in January needs to start, not just run, so get those details written into the quote.

Where are the used diesel generators, and can you deliver?

They are sold from our yard in Red Deer, Alberta, where you can arrange to see them. Tell us where the set is going and transport can be priced into the quote along with anything else the site needs, such as distribution or a transfer switch.

Used diesel generator sales

Tell us the set, or the job.

Name the listing you are interested in, or describe what the generator has to run, at what voltage and where. We will confirm whether the unit is still here and send a written price for it.

(403) 887-4567

NexSource Power · Red Deer, Alberta

All used generators for sale

Request a used diesel quote

The listing name is enough to identify a unit. Still choosing a size? Send the loads and we will suggest one.