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Cummins/Onan VTA28G5 Generator Set

The Cummins/Onan VTA28G5 is a 603 kW (681 kVA) Diesel standby generator set powered by a Cummins/Onan VTA28-G5 engine. It is available at 220 V and 480 V, single-phase and 60 Hz. It holds about 83 L (21.9 gal) of oil and 207 L (54.7 gal) of coolant, with a maximum ambient rating of 40 °C. Starting uses battery rated 254 CCA. The set weighs about 4047 kg (8922 lb). An integrated tank holds 1325 L (350.0 gal). The same VTA28-G5 engine also powers generator sets from Katolight.

603 kW
Standby
28.0 L
Displacement
83.0 L
Oil capacity
1
Document types

How to read your Cummins/Onan serial & model number →

Typical fuel consumption for 600–605 kW Diesel generators →

Compare with other 600–605 kW Diesel generators →

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Specifications

FuelDiesel
Frequency60.0 Hz
Standby power603 kW
Prime power545 kW
ControllerPCL
Oil capacity83.0 L
Voltage options220 V, 480 V
PhaseSingle
Battery cranking254 CCA
Coolant capacity207 L
Max ambient40 °C
Dry weight4047 kg
Fuel tank1325.0 L

Engine

Cummins/Onan VTA28-G5
Oil capacity84.0 L
Coolant capacity167.0 L
Displacement28.0 L
AspirationDiesel
Rated speed1800 rpm

Maintenance & consumables

for the Cummins/Onan VTA28-G5
ItemSpecCapacityPart #Interval
Air filter—250 hr
Fuel filterChange Fuel Filters—100 hr
Oil filterChange the oil and filters at the intervals recommended in Table 5-1.—50 hr
BatteryCheck the condition of the starting batteries (see Figure 5-7) at the interval specified in the Maintenance Table. See that connections are clean and tight. A light coating of non-conductive grease will retard corrosion at terminals. Keep the electrolyte at the proper level above the plates by adding distilled water. Check specific gravity using a hydrometer and recharge if below 1.260.—
Belt—
Coolant167.0 L—500 hr
OilChange the oil and filters at the intervals recommended in Table 5-1.89.0 Quarts—8 hr
Spark plug—

Common questions

What is the power rating of the Cummins/Onan VTA28G5?

The Cummins/Onan VTA28G5 is rated 603 kW standby.

Which engine powers the Cummins/Onan VTA28G5?

The Cummins/Onan VTA28G5 is powered by the Cummins/Onan VTA28-G5 engine.

What kind of fuel does the Cummins/Onan VTA28G5 run on?

The Cummins/Onan VTA28G5 runs on Diesel.

How much oil does the Cummins/Onan VTA28G5 take?

The Cummins/Onan VTA28-G5 engine in the Cummins/Onan VTA28G5 has an oil capacity of 84.0 liters.

Parts

87
Part #DescriptionQtySystem
0300-4623-18DFGB (600V)1Current transformer Amazon eBay $205.65
0300-4623-34DFGB BR (0-480V)1Current transformer Amazon eBay
122-0702Head, Oil Filter1Oil filter Amazon eBay
122-0777Filter, Lube Oil1Oil filter Amazon eBay
128-0108Insulation, Hose - Bulk (7/8º ID) (Order By The Foot - 10 Feet Required)-Hose Amazon eBay
130-1193Gasket, Outlet Adapter1Gasket Amazon eBay
130-3839-01Guard, Belt − Right Side1Belt Amazon eBay
130-3839-02Guard, Belt − Left Side1Belt Amazon eBay
130-3840Guard, Belt − Top1Belt Amazon eBay
130-3841Guard, Belt − Bottom1Belt Amazon eBay
130-3842Guard, Belt − Front1Belt Amazon eBay
130-3843Guard, Belt − Right Side1Belt Amazon eBay
130-3844Guard, Belt − Bottom Back1Belt Amazon eBay
130-3845Guard, Belt − Top Back1Belt Amazon eBay
130-3846Guard, Belt − Left Side1Belt Amazon eBay
130-3874Base, Mounting * − Parts Used On Heat Exchanger Installations With Automatic Water Regulator + − Parts Used On Heat Exchanger Installations Without Automatic Water Regulator # − Cut Off And Discard Swivel Connector End Of Hose So That 1/8 NPT Connector End Measures Length As Indicated Above1Hose Amazon eBay
130-4354Radiator (Includes Cap, Sight Gauge And Overflow Hose) (Also Includes Cover Plates, Gaskets, Screws And Lock Washers For All Water Outlets)1Gasket Amazon eBay
130-4552Cover, Coolant Heater2Fluid Amazon eBay
140-2301Cleaner, Air (Includes Replacement Elements) 140−24652Air filter Amazon eBay
193-0444Sender, Oil Pressure (S1)1Sensor Amazon eBay
193-0468Sender, Low Coolant Level (S7)1Sensor Amazon eBay
193-0529-01Sensor, Temperature1Sensor Amazon eBay
309-0649Thermostat1Thermostat Amazon eBay $144.99
323-1445* Seal, Cable (Used With Station 17)2Seal Amazon eBay
330-0141-04Gasket, Cover1Gasket Amazon eBay
330-0142Box, Terminal (Includes Cover and Gasket − Ref No. 19 and 20)1Gasket Amazon eBay
333-0407-05Heater, Oil (300 Watt, 480 Volt)1Fluid Amazon eBay
501-0537-22Hose, Oil (86”)1Hose Amazon eBay
501-0537-23Hose, Oil (22”)1Hose Amazon eBay
501-0744-01Hose, Coolant1Hose Amazon eBay
501-0744-05Hose, Coolant2Hose Amazon eBay
502-0313Elbow, Hose − 90° (1/8” Pipe to 1/4” Hose)54Hose Amazon eBay
502-0395Connector, Hose1Hose Amazon eBay
502-0971Connector, Hose2Hose Amazon eBay
502-1337Adapter, Coolant Heater1Fluid Amazon eBay
502-1530Union, Hose (1”) − Nylon2Hose Amazon eBay
502-1531Connector, Hose2Hose Amazon eBay
503-0189Clamp, Hose1Hose Amazon eBay
503-0249Hose − Bulk (Order by the Foot − 3 Feet Required)1Hose Amazon eBay
503-0569Hose (3−1/2” ID) Bulk (Order By The Foot − 2 Feet Required)1Hose Amazon eBay
503-0685Clamp, Hose1Hose Amazon eBay $15.00
503-0856Hose, Radiator − Lower (3−1/2” ID x 5−1/2”)2Hose Amazon eBay $42.58
503-1418Hose − Bulk (1/4” ID) (Order By The Foot − 18 Feet Required)1Hose Amazon eBay
503-1620Hose – Bulk (3/8" ID) (Order by the Foot)-Hose Amazon eBay
503-1634Hose, Silicon Rubber2Hose Amazon eBay
503-1634-01Hose, Rubber (3/4” ID x 4”)4Hose Amazon eBay
503-1728Hose (3” ID x 5–1/2”)1Hose Amazon eBay
503-1779Hose − Bulk (1” ID) (Order By The Foot − 1 Foot Required)-Hose Amazon eBay
503-1870-07Clamp, Hose1Hose Amazon eBay
503-1870-11Clamp, Hose2Hose Amazon eBay
503-1870-12Clamp, Hose2Hose Amazon eBay
503-1870-14Clamp, Hose2Hose Amazon eBay
503-1872-01Clamp, Hose4Hose Amazon eBay
503-1872-05Clamp, Hose2Hose Amazon eBay
503-1872-07Clamp, Hose6Hose Amazon eBay
503-2157-01Clamp, Hose8Hose Amazon eBay
503-2276Elbow, Hose2Hose Amazon eBay
503-2350-04Hose, Coolant (1” x 5‘)1Hose Amazon eBay
503-2350-05Hose, Coolant (1” x 8‘)2Hose Amazon eBay
505-0759Adapter − Pipe to Hose (1” x 1”)2Hose Amazon eBay
508-0292Washer, Sealing - Copper1Washer Amazon eBay
511-0105Belt−V1Belt Amazon eBay
518-0548-20Clamp, Hose1Hose Amazon eBay
870-0257Nut, Locking (5/16−18) * − Parts Used On Heat Exchanger Installations With Automatic Water Regulator # − Cut Off And Discard Swivel Connector End Of Hose So That 1/8 NPT Connector End Measures Length As Indicated Above + − Parts Used On Heat Exchanger Installations Without Automatic Water Regulator2Hose Amazon eBay
960-0504PCC Control Service Manual*Service manual Amazon eBay
960-0507Detector Control Service Manual**Service manual Amazon eBay $49.00
960-0630CPCC2100 PowerCommand Control1Controller Amazon eBay
098-7954Label, Information − Element Replacement2Service part / kit Amazon eBay
130-5666-02Tube, Water Heater1Service part / kit Amazon eBay
130-5852-02Tube, Water Heater1Service part / kit Amazon eBay
140-1260Fitting, Safety Filter2Service part / kit Amazon eBay $116.27
140-1260-01Fitting, Safety Filter1Service part / kit Amazon eBay
323-1491* Pin, Contact (Used With Inline G)3Service part / kit Amazon eBay
323-1492* Socket, Contact (Used In Stations 18, 19)4Service part / kit Amazon eBay
323-1718* Pin, Contact (Used In Station 17)2Service part / kit Amazon eBay
332-2634Clamp, Retainer 4 Prior To December 1996 Production (Mounted On Top And Side Of Control Box Wrapper)10Service part / kit Amazon eBay
518-0548-24Clamp, Retainer Begin December 1996 Production (Mounted On Top And Side Of Control Box Wrapper On The Side Towards The Control Box Cover)20Service part / kit Amazon eBay
518-0548-42Clamp, Retainer 4 Prior To December 1996 Production (Mounted On Top And Side Of Control Box Wrapper)20Service part / kit Amazon eBay
898-1254-25Sleeving – Heater Leads (59”)1Service part / kit Amazon eBay
960-0103Service part / kit Amazon eBay
960-0145Service part / kit Amazon eBay
960-0241Service part / kit Amazon eBay
960-0259Service part / kit Amazon eBay
960-0606Service part / kit Amazon eBay
960-0611Service part / kit Amazon eBay
M-CK4911685PCylinder KitService part / kit Amazon eBay
MCB4911685Piston KitService part / kit Amazon eBay

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Fuel consumption

RatingLoadL/hgal/h
Prime100%154.040.68

Available documents

Spec sheet — VTA28 60HZ 545~603kw (Cummins/Onan)
Other sets with this engine
Cummins/Onan DFGACummins/Onan DFGBCummins/Onan DFGECummins/Onan VTA28-G5Katolight D600FJZ4Katolight D600FNZ4Katolight D600FPZ4