Facts About Generators
GeneratorsDirectoryCompareRepairEnginesControllersPartsManufacturersGuides
Search models or part #
Home›Engines›Cummins/Onan QSM11-G2

Cummins/Onan QSM11-G2 Engine Engine

The Cummins/Onan QSM11-G2 is an engine. It powers generator sets from Cummins/Onan, including the DQAF.

Also known as: Cummins QSM11-G2

Part of the Cummins/Onan QSM11 engine family — 15 variants share parts & fitment.

Engine specifications

Generator sets powered by this engine

1
Cummins/Onan DQAF

Common problems

15
  • WEAK BATTERY 232
  • Warning lamp lights. MESSAGE: WEAK BATTERY 232 − WARNING WEAK BATTERY 232
    Fix: Indicates battery voltage drops below 60% of nominal for two seconds, during starting. Discharged or defective battery. See Warning message 230, LOW DC VOLTAGE.
  • Warning lamp lights. MESSAGE: OVERLOAD 330 − WARNING 330
  • Warning lamp lights. MESSAGE: OVERCURRENT 320 − WARNING 320
  • Warning lamp lights. MESSAGE: LOW DC VOLTAGE 230 − WARNING LOW DC VOLTAGE 230
    Fix: Indicates battery voltage is below 10 VDC. a. Discharged or defective battery. Check the battery charger fuse. Recharge or replace the battery. b. Poor battery cable connections. Clean the battery cable terminals and tighten all connections. c. Check engine DC alternator. Replace engine DC alternator if normal battery charging voltage is not obtained. d. Check battery charge voltage float level if applicable (raise float level).
  • Warning lamp lights. MESSAGE: HIGH DC VOLTAGE 231 − WARNING HIGH DC VOLTAGE 231
    Fix: Indicates battery voltage exceeds 32 VDC. Check voltage float level on battery charger if applicable (lower float level). Check engine DC alternator. Replace engine DC alternator if normal battery charging voltage is not obtained.
  • Warning lamp lights. MESSAGE: EEPROM ERROR 251 − WARNING or 252 − WARNING EEPROM ERROR 251
    Fix: Indicates PCC memory error. Data corruption of noncritical operating parameters.
  • Warning lamp lights. MESSAGE: CUSTOMER FAULT 1 261 − WARNING 261
  • Warning lamp lights. MESSAGE: CUSTOMER FAULT 1 260 − WARNING or GROUND FAULT 260
  • Warning lamp lights. MESSAGE: COOLANT SENDER 213 − WARNING COOLANT SENDER 213
    Fix: Indicates that the resistance of the coolant temperature sender is out of range. Check the resistance of the sender. Resistance should be 500 to 2k ohms.
  • Warning lamp lights. LOW DC VOLTAGE
    Fix: A. Discharged or defective battery. Check the battery charger fuse. Recharge or replace the battery. b. Poor battery cable connections. Clean the battery cable terminals and tighten all connections. c. Contact an authorized service center if none of the above.
  • UNDER FREQUENCY 313
  • Shutdown or Warning lamp lights. MESSAGE: CM570/ENGINE 263 − SHUTDOWN 263
  • Shutdown or Warning lamp lights. MESSAGE: CM570/ENGINE 262 − WARNING 262
  • Shutdown or Warning lamp lights. ENG COOLANT SENDER
    Fix: Contact an authorized service center.

Compiled from service & troubleshooting documentation across every generator set that uses the Cummins/Onan QSM11-G2.

Parts cataloged across the Cummins/Onan QSM11 family

141
Part #DescriptionCategory
140-2636Element, Filter (Outer)air_filter
140-2637Cleaner, Air (Includes Elements)air_filter
140-2638Element, Filter (Inner)air_filter
140-3288-02Cleaner, Airair_filter
3375362Sight Glass (Used to check for air in the fuel suction line. Use Part Number 3375362 with Number 12 hose, and Part Number 3375808 with Number 16 hose.)air_filter
3375808Sight Glass (Used to check for air in the fuel suction line. Use Part Number 3375362 with Number 12 hose, and Part Number 3375808 with Number 16 hose.)air_filter
RU3220Air Cleanerair_filter
2874862Alternator 12Valternator
2874863Alternator 24Valternator
3037425Beltbelt
A40-TB1-8JUMPER WIREbelt
A40-TB1-30COMMON ALARMcommon alarm
A40-TB1-31(COMMON ALARM)common alarm
WF2072Coolant Filtercoolant_filter
49c00185Data Linkdata_link
ES100027Distribution Panel Wiring for T360 Series Single Phase Controldistribution_panel_wiring
300-5815Control, Pump - ECMecm
12000187Engine position sensorengine_position_sensor
13200060Engine Speed Control Switchengine_speed_control_switch
33200082Engine Stop Buttonengine_stop_button
3823494Sealantfluid
V70509Lube Oilfluid
12000183Fuel filterfuel_filter
3376807Filter Wrench (Used to remove or tighten spin on fuel filters.)fuel_filter
FS1000Fuel Filterfuel_filter
15600049Fuel Shutoff Valvefuel_shutoff_valve
ES100030Standard Generator Wiring for T360 Seriesgenerator_wiring
A40-TB1-11(COMMON ALARM)ground
19400715OEM Interface 21-Pin Harness Connectorhose
19400718OEM Interface 24-Pin Harness Connectorhose
415-0566-15Pipe, Suctionhose
503-0098Hose, Oil Drain - Bulk (3/4hose
503-0189Clamp, Hosehose
505-0172Nipple, Close (2 x 2")hose
518-0548-01Clamp, Hosehose
A035N852Hose, Drain - Bulk (Order by the Foot - 1 Feet Required)hose
ST-434-1Hose Adapter (Used with vacuum gauge, Part Number ST-434. Use Part Number ST-434-1 with Number 8 hose.)hose
ST-434-2Hose Adapter (Used with vacuum gauge, Part Number ST-434. Use Part Number ST-434-2 with Number 10 hose.)hose
38200567Idle Adjustment Switchidle_adjustment_switch
ES100039Idle-Run Wiring (Cummins)idle_run_wiring
8359-01IMPELLERimpeller
MCIF4024941In-Frame Engine Kitin_frame_engine_kit
3823579CELECT™ Injector Puller and Driver Assembly (Used to remove and install CELECT™ injectors.)injector
3375049Oil Filter Wrenchoil_filter
3397929Oil filter wrenchoil_filter
LF9001Lube Filteroil_filter
LFg9001Valvoline® Premium Blue®oil_filter
12000186Oil pressure and temperature sensoroil_pressure_and_temperature_sensor
13200087Oil Pressure Gaugeoil_pressure_gauge
05200182Flywheel ring gear sensorother_service
102-1335Plug, Oil Drainother_service
12000184Rail pressureother_service
12000188Freon compressor mounting location.other_service
134890T360 Super Quiet Generatorother_service
155-2409-04Elbow, Exhaustother_service
155-3510Elbow, Mufflerother_service
155-3540Silencerother_service
155-4022Mufflerother_service
155-4062Mufflerother_service
159-1208-01Cap, Fuelother_service
159-1299Bracket, Mountingother_service
159-1573-01Tank, Fuel 300 Gallonother_service
19400716Hard-Coupledother_service
19400734Intermediate Speed Controlother_service
19800802Multiple Unit Synchronizationother_service
3305070Heater, 240Vother_service
3315033Heater, 120Vother_service
338-4426Harness, Wiringother_service
3823451Static Injection Timing Tool (Used to measure static timing.)other_service
3885910Red Paint, Spray canother_service
415-0727Tank, Day (19 Gallons)other_service
492000038Operation and Maintenance Nanualother_service
49800897Intermediate Speed Controlother_service
49801587Electronic Fan Clutchother_service
502-1259Coupler, Coolant Heaterother_service
504-0252Valve, Solenoid - Fuelother_service
625-2141-01Control, Fuel Tankother_service
8210G4-12VDC1" 12V solenoidother_service
8210G4-24VDC1" 24V solenoidother_service
961-0514InPower Service Tool Kitother_service
961-0619Generator Set Supportother_service
98200038Engine Steam Cleaningother_service
A045Z906Isolator, Vibrationother_service
A045Z908Bracket, Switchother_service
A40-TB1-1B+other_service
A40-TB1-12(B-)other_service
BER0052BEARINGother_service
C2800Fleetguard® refractometerother_service
CC2800Fleetguard® refractometerother_service
CM570Calibration Module for QSM11other_service
D036other_service
D041other_service
F154other_service
F159other_service
H479other_service
H487other_service
H488other_service
H530other_service
H556other_service
H557other_service
JSK0080SERVICE KITother_service
K882other_service
LE9o01Cummins Engine Company, Inc.other_service
MCIF4024940Kit, de cilindros pCother_service
QSM11Throttle Actuatorother_service
SHA0093SHAFTother_service
ST-1111-3Mercury-Filled Slack Tube Manometer (Used to measure fuel drain line restriction.)other_service
WER0020WEAR PLATEother_service
ES100006Overcurrent Relay Wiringovercurrent_relay_wiring
3376326Pulley Pusherpulley_pusher
3377401Pulley Pusher Adapter, 5/16 X 24 X 2 capscrewspulley_pusher_adapter
12000180Fuel inlet to pumppump
12000185Power steering pump mounting locationpump
149-2699-01Pump, Fuel - Assembly 2 GPMpump
149-2710-01Pump, Fuel - With Motor 2 GPMpump
399-0117Pump, Fuel Tank (P103)pump
399-0121Kit, Repair - Fuel Tank Pumppump
307-2621-02Relay, Start Solenoid (K4)relay
39200434Governed rpmrpm_governor
CAMSET0032CAM LINER(WITH O-RING)seal
MCSSET0019M-SEAL(WITH SPACER, SNAP-RING)seal
ORG0054O-RINGseal
ORG0055O-RINGseal
RET0042OIL SEALseal
151-0411Pickup, Magneticsensor
193-0432Sender, Oil Temperature (S2 Engine Block, E4 Oil Pan)sensor
193-0444Sender, Oil Pressure (S1)sensor
308-0913-06Switch, Floatsensor
309-0269Air Cleaner (Includes Element) - Standardsensor
309-0701-01Switch, Level - High and Lowsensor
309-0702-01Switch, Level - Rupture Basinsensor
415-0565-15Gauge, Liquid Levelsensor
420-0609-01Gauge - Fuel Levelsensor
13200052Slow Idle Featureslow_idle_feature
ES100026Three Position Stack Switch Wiringstack_switch_wiring
2871254Starter 12Vstarter
3103916Starter 24Vstarter
3200069STOP CHECK!stop_check
43200086Tachometer w/Hour Metertachometer
190-0200Thermostatthermostat
43200085Voltmetervoltmeter

Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.

Common questions

Which generators use the Cummins/Onan QSM11-G2 engine?

The Cummins/Onan QSM11-G2 powers 1 generator set(s), including Cummins/Onan DQAF.

What is a common problem with the Cummins/Onan QSM11-G2 engine?

A commonly reported issue on generators using the Cummins/Onan QSM11-G2 is: WEAK BATTERY.