Brand

Used Cummins Diesel Generators

Cummins is the brand most used generator buyers name first, and it is also the brand most often re-badged onto a machine that is not one. The engine plate on the block settles it; the decal on the canopy does not.

Our Cummins stock is the largest single brand line we hold, spanning small commercial sets in the tens of kVA up to mining-scale machines approaching 2 MVA, in silent canopies, open skids and container builds. Because the parts network reaches Manila, Jakarta, Ho Chi Minh City and Singapore, a Cummins-engined set is usually the easiest used machine in the region to keep running.

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Available units

Used Cummins generators listed on this site

266 individual used sets are listed below. Each one is photographed where it stands and carries its own parameter table. Ratings are prime power in kVA at 0.8 power factor.

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In stock

Cummins sets we hold

Current used stock carrying Cummins. Each set is listed individually with its own photographs and parameter table.
Item Detail
Sets in stock The largest brand line on the site
Rating range 31 to 1875 kVA
Build forms Silent canopy, open frame and containerized
Rating basis Prime power in kVA at 0.8 power factor, with the standby figure given where the documentation supports it
Price Quoted on request. Send the rating, the site voltage and frequency, the destination port and the duty

Brand notes

Cummins in a used set

What the brand means on a used machine, and what it does not.
Item Detail
Origin Cummins Inc., United States, with engines also built in the UK, India and China under licence
Engine families seen in this stock B and C series four- and six-cylinder units, 6L and 6CT, and the larger N, K19, K38 and K50 families in the high-power sets
Alternator pairings Usually Stamford, Leroy-Somer or Marathon; the alternator nameplate is quoted with every set
Parts Filters, belts, gaskets, injectors, water pumps and sensors are available through the Cummins distributor network across Southeast Asia
What the brand does not tell you That the machine is genuinely Cummins-engined, and which family it is. Parts are not interchangeable between a B series and a K series, and the plate on the block is the only reliable answer

Requirements

What to check on a used Cummins set

Inspection points that matter on a used Cummins machine, in the order we check them.
Item What we check Why it matters
Engine hours and the hour meter itself The reading, and whether it agrees with the service records An hour meter is the easiest thing on a set to replace, and the hardest to verify afterwards
Engine make and model The plate on the block, not the badge on the canopy On a used set the engine is the value; the canopy is sheet metal
Serial number and build year Read from the block and checked against the documentation It fixes which revision of the engine you are buying parts for
Oil pressure and blow-by Hot idle oil pressure, and the crankcase breather with the engine running Together they say more about bore and ring condition than any other two checks
Coolant and oil condition Colour, level, and whether there is fuel or combustion gas in the coolant Contamination is a sign of a head gasket or a liner problem rather than routine wear
Alternator Make and model, insulation resistance, and a visual check of the windings The alternator is the second most valuable item, and moisture damage hides until it is loaded
Control panel Model, firmware, and whether the protection settings can be read and changed A panel that cannot be configured is a panel that will be replaced
Load test Load bank run at 100%, 75% and 50%, with the figures recorded A set that starts and idles proves very little about a set that has to carry a load
Corrosion and enclosure Seams, fasteners, base frame and the radiator core On a coastal or island site this is the difference between a repaint and a rebuild

Questions

Questions we are asked about Cummins sets

Why does the badge on the canopy not settle which engine is inside?

Because used sets are re-canopied, re-badged and re-painted as they move between owners and markets. Two machines that both read Cummins on the side can carry different engine families, different alternators and control panels from different decades. The plate on the engine block and the alternator nameplate are what the quotation is actually about.

How are these sets rated?

Ratings are quoted as prime power in kVA at 0.8 power factor, with the standby figure given where the set and its documentation support one. Prime and standby are two different ratings of the same machine, and a set that has run for years as prime power should not be re-labelled as standby without an inspection.

What is included with a set bought here?

The set as photographed, the parameter table for that machine, the factory or workshop load test figures where they exist, and the documentation we hold for it. Anything the set needs to run at the destination – a transfer switch, a bunded tank, a canopy modification – is quoted as a line item rather than assumed

Can the set be re-wound or re-configured for another voltage or frequency?

Voltage changes are usually a reconnection of the alternator and are quoted per machine. Frequency is not: a 50 Hz set runs at 1500 rpm and a 60 Hz set at 1800 rpm, and the engine, the radiator and the alternator rating all differ. If a project needs the other frequency, the right answer is another machine rather than a conversion.

Who services a used Cummins set in Southeast Asia?

Through the Cummins distributor network in the Philippines, Indonesia, Vietnam, Thailand and Singapore, or by the buyer’s own maintenance team with parts supplied by the same network

Related

Related pages

Looking for a Cummins set at a particular rating?

Send the rating, the duty and the destination port, and we come back with the machines in stock that fit.

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