Cummins/Onan DGAB — Specs, Engine, Parts & Maintenance

Service parts for the DGAB

Grouped by system, with how many of each the parts manual calls for.

Oil system

1 required

Electrical

1 required

Prices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.

Specifications

Fuel	2-D Diesel
Frequency	60.0 Hz
Standby power	20 kW
Standby kVA	25
Controller	Detector 7 (standard); Detector 12 (optional)
Oil capacity	5.7 L
Alternator	YD (4-pole)
Voltage options	12 V
Phase	1 and 3
Power factor	0.8
Battery group	31
Battery cranking	530 CCA
Battery voltage	12 V
Battery quantity	1
Starting system	12 V DC
Coolant capacity	11.5 L

Engine

Cummins/Onan 4A2.3

Oil capacity	8.5 L
Coolant capacity	16.8 L
Rated speed	1800 rpm

Maintenance & consumables

for the Cummins/Onan 4A2.3

Item	Spec	Part #	Interval
Air filter		—	500 hr
Fuel filter		—	1000 hr
Oil filter		51592	200 hr	Amazon eBay FridayParts $15.89
Battery	BCI Group 31	ES-1178-2		Amazon eBay
Belt		—	200 hr
Coolant		—	1000 hr
Coolant filter		—
Oil		—	250 hr
Spark plug		—	1000 hr

Service intervals

Item	Action	Hours	Months	Notes
Crankcase oil	Change	50 hr		First service — After first 50 hours of operation on new generator sets.
Valve lash clearance	Check	50 hr		First service — See Note 3; perform after first 50 hours of operation on new sets.
Battery electrolyte level	Check	200 hr		Check at least every 200 hours of operation.
Crankcase breather cap (turbo)	Clean	400 hr		DGAE turbocharged engines; clean with solvent and allow to dry.
Generator bearing	Inspect	1000 hr		Inspect for evidence of outer case rotation every 1000 hours.
Cooling system	Drain		12 mo	Drain, flush, and refill once a year.
Generator bearing	Replace	10000 hr	60 mo	Standby: every five years.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Service specifications

Type	Item	Value	Unit	Condition
Clearance	Trailer brake actuator stroke length	1	inch (25 mm)	maximum before brake shoe readjustment
Gap	Float switch test feeler gauge	0.125	inch (3 mm)	between float and C-clip stop
Gap	Magnetic pickup adjustment	1/2 turn out from tooth	turn	after contact with flywheel tooth
Gap	Overspeed switch air gap	0.005	inch (0.13 mm)	minimum
Gap	Overspeed switch air gap	not less than 0.005	inch (0.13 mm)
Other	Battery charge threshold	1.215		charge if reading is below
Other	Battery electrolyte specific gravity	1.260	specific gravity	fully charged at 80°F (27°C)
Other	Battery electrolyte specific gravity	about 1.260	specific gravity	fully charged at 80°F (27°C)
Other	Battery specific gravity fully charged	1.260		corrected to 80°F (27°C)
Other	Brake shoe adjustment	10	clicks	back off from point wheel cannot be turned by hand
Other	Control heater element power	75	watts at 120 VAC
Other	Cooling system fill rate	3	gallons/minute
Other	Cycle cranking	15 seconds crank, 15 seconds rest, 3 cycles	seconds	12-lamp control
Other	Fan belt tension	60	lbs (267 N)
Other	Heavy duty air cleaner air drying time	24	hours	minimum
Other	Overcrank cranking limit	75	seconds
Pressure	Engine oil pressure (normal)	30 to 55	psi (207 to 380 kPa)	engine at operating temperature
Pressure	Low oil pressure shutdown	14	psi (97 kPa)
Pressure	Low oil pressure shutdown	below 14	psi (97 kPa)	fault time delayed about 10 seconds following starter disconnect and inhibited during cranking
Pressure	Pre-low oil pressure alarm	20	psi (137 kPa)	or less
Resistance	Actuator coil resistance	1 ±10%	ohm	at 77°F (25°C); leads disconnected
Resistance	Control heater element resistance	192	ohms	dissipates 75 watts at 120 VAC
Resistance	Exciter rotor winding resistance	0.54	ohms	at 77°F (25°C), ±10%
Resistance	Exciter rotor winding resistance	0.54 ±10%	ohms	at 77°F (25°C)
Resistance	Exciter rotor winding resistance	0.645	ohms	at 77°F (25°C), ±10%
Resistance	Exciter rotor winding resistance	0.645 ±10%	ohms	at 77°F (25°C)
Resistance	Exciter stator insulation resistance to lamination	100,000	ohms	minimum; 500 VDC or more
Resistance	Exciter stator winding resistance	12.4 ±10%	ohms	at 77°F (25°C)
Resistance	Exciter stator winding resistance	14.5 ±10%	ohms	at 77°F (25°C)
Resistance	Exciter stator winding resistance, 4A2.3/6A3.4/6AT3.4	14.5	ohms	at 77°F (25°C), ±10%
Resistance	Exciter stator winding resistance, DGAB/DGAC/DGAD/DGAE	12.4	ohms	at 77°F (25°C), ±10%
Resistance	Exciter stator winding resistance, DL4	20.0	ohms	at 77°F (25°C)
Resistance	Exciter stator winding resistance, DL6	25.0	ohms	at 77°F (25°C)
Resistance	Exciter stator winding resistance, DL6T	40.0	ohms	at 77°F (25°C)
Resistance	Governor actuator coil resistance	1 ±10%	ohms	at 77°F (25°C); resistance to case infinity
Resistance	Insulation resistance to ground	100,000 or greater	ohms	500 VDC or more megger; exciter stator/rotor and main rotor/stator
Resistance	Magnetic pickup DC resistance	175 ±15%	ohms	at 77°F (25°C); disconnected from terminals 5 and 6
Resistance	Magnetic pickup coil resistance	175 ±15%	ohms	at 77°F (25°C); leads to case infinity
Resistance	Main rotor insulation resistance to shaft	100,000	ohms	minimum; 500 VDC or more
Resistance	Main rotor resistance at stack length 10.50 in (267 mm)	2.55	ohms	at 77°F (25°C) ±10%
Resistance	Main rotor resistance at stack length 5.88 in (149 mm)	2.75	ohms	at 77°F (25°C) ±10%
Resistance	Main rotor resistance at stack length 7.12 in (181 mm)	1.80	ohms	at 77°F (25°C) ±10%
Resistance	Main rotor resistance at stack length 8.75 in (222 mm)	2.04	ohms	at 77°F (25°C) ±10%
Resistance	Main rotor winding resistance, stack length 10.50 in (267 mm)	2.55	ohms	at 77°F (25°C), ±10%
Resistance	Main rotor winding resistance, stack length 10.50 in (267 mm), QSA-series	2.91	ohms	at 77°F (25°C), ±10%
Resistance	Main rotor winding resistance, stack length 5.88 in (149 mm)	2.75	ohms	at 77°F (25°C), ±10%
Resistance	Main rotor winding resistance, stack length 7.12 in (181 mm)	1.80	ohms	at 77°F (25°C), ±10%
Resistance	Main rotor winding resistance, stack length 7.12 in (181 mm), QSA-series	1.98	ohms	at 77°F (25°C), ±10%
Resistance	Main rotor winding resistance, stack length 8.75 in (222 mm)	2.04	ohms	at 77°F (25°C), ±10%
Resistance	Main rotor winding resistance, stack length 8.75 in (222 mm), QSA-series	2.24	ohms	at 77°F (25°C), ±10%
Resistance	Main stator insulation resistance	100,000	ohms	minimum; 500 VDC or more
Resistance	QSA main rotor resistance at stack length 10.50 in (267 mm)	2.91	ohms	at 77°F (25°C) ±10%
Resistance	QSA main rotor resistance at stack length 5.12 in (130 mm)	2.55	ohms	at 77°F (25°C) ±10%
Resistance	QSA main rotor resistance at stack length 5.88 in (149 mm)	2.75	ohms	at 77°F (25°C) ±10%
Resistance	QSA main rotor resistance at stack length 7.12 in (181 mm)	1.98	ohms	at 77°F (25°C) ±10%
Resistance	QSA main rotor resistance at stack length 8.75 in (222 mm)	2.24	ohms	at 77°F (25°C) ±10%
Resistance	Transformer TX1 coil resistance	370; 313	ohms	at 77°F (25°C), within ±10%; no continuity between windings or to ground
Resistance	Transformer TX1 winding resistance	313	ohms	within ±10% at 77°F (25°C)
Resistance	Transformer TX1 winding resistance	370	ohms	within ±10% at 77°F (25°C)
Speed	Engine speed equivalent of frequency	30	r/min per Hz

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Recommended fluids

Fluid	Grade	Standard	Notes
Coolant	Ethylene glycol antifreeze (permanent type) and clean water; 50/50 mixture		Use soft water; contains rust and corrosion inhibitor; no stop-leak additive. Capacities: DGAB 11.5 L (12.2 QT); DGAC/DGAD 16.8 L (17.8 QT); DGAE 17.5 L (18.5 QT).
Engine oil	API CD/SF or CE/SF; multigrade	API CD/SF or CE/SF	Preferred oil grades per Table 5-2; choose grade for lowest expected temperature. Capacities: DGAB 5.7 L (6 QT); DGAC/DGAD 8.5 L (9 QT); DGAE 11.4 L (12 QT).
Fuel	ASTM 2-D (No. 2 Diesel) or ASTM 1-D (No. 1 Diesel)	Minimum Cetane number 45	Use No. 1 diesel when ambient temperatures are below 0°C (32°F) and during long periods of light load. Low sulfur; cloud point at least 10 degrees below lowest expected fuel temperature.
Other	DOT 3		Trailer brake system; reservoir should be at least half full
Other	DOT-3 heavy duty hydraulic fluid		Trailer brake system bleeding
Other	distilled water		Battery electrolyte; add distilled water to maintain proper level.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Fault codes

Code	Name	Meaning	Severity	Action
FAULT 1	Fault 1	Undedicated fault; may be programmed as shutdown or non-shutdown and as timed or non-timed; normally set for timed shutdown.		Investigate optional fault selection; contact dealer if needed.
FAULT 2	Fault 2	Undedicated fault; same features as Fault 1; normally set for non-timed shutdown.		Investigate optional fault selection; contact dealer if needed.
HI ENG TEMP	High engine temperature shutdown	Engine shut down because coolant temperature rose above 222°F (106°C) or coolant level is low.	Shutdown	Allow to cool; check coolant level, airflow, and fan belt; reset and restart; contact dealer if fault persists.
LO FUEL	Low fuel	Fuel supply marginally low.	Warning	Check fuel supply and replenish.
LO PRES	Low oil pressure shutdown	Engine shut down because oil pressure dropped below 14 psi (97 kPa).	Shutdown	Check oil level, lines, and filters; reset and restart; contact dealer if pressure is not 30 to 55 psi.
LOW ENG TEMP	Low engine temperature	Engine temperature marginally low for starting; indicates inoperative coolant heater. Lamp lights when engine coolant temperature is 70°F (21°C) or lower.	Warning	Check coolant heater power, fuse, cord, and coolant level; contact dealer if fault persists.
LOW OIL PRES	Low oil pressure shutdown	Red lamp indicates engine shutdown because of critically low oil pressure.	Shutdown	Check oil level and LOP switch; inspect engine.
OVERCRANK	Overcrank shutdown	Starter locked out because of excessive cranking time.	Shutdown	Check fuel system, fuel filter, and air filter; reset and restart; contact dealer if fault persists.
OVERSPEED	Overspeed shutdown	Engine shut down because of excessive speed.	Shutdown	Contact authorized dealer or distributor for service.
PRE HI ENG TEMP	Pre-high engine temperature	Engine temperature marginally high, 202°F (94°C).	Warning	Reduce load if possible, check airflow, and improve ventilation; if engine can be stopped follow high engine temperature procedure.
PRE HIGH ENG TEMP	Pre-high engine temperature	Yellow lamp indicates engine temperature is marginally high.	Warning	Find and correct cause.
PRE LO OIL PRES	Pre-low oil pressure	Oil pressure marginally low, 20 psi (137 kPa) or less.	Warning	Find and correct cause as soon as possible.
RUN	Run	All engine systems normal.	Info	No corrective action required.
SWITCH OFF	Switch off	Generator set is not in automatic start operation mode.	Warning	Move Run/Stop/Remote switch to REMOTE for automatic starting.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Procedures

Adjust magnetic pickup adjustment

Tools: Compressed air, Jam nut wrench

Rotate engine so ring gear tooth is centered in MPU hole.
Clean mounting hole with compressed air.
Turn MPU in until it contacts flywheel tooth directly below.
Turn out 1/2 turn and lock with jam nut.
Be sure pickup does not rotate when tightening jam nut.

Adjust voltage adjust potentiometer R21 adjustment

⚠ Contact with high voltage can cause severe personal injury or death.

Tools: Insulated screwdriver

Loosen locking nut of R21 and adjust to mid-range.
Start genset and bring temperature to normal.
With no load, turn Phase Selector to read output voltage and current.
Adjust R32 for approximate desired voltage.
Fine-adjust with R21 and tighten locking nut without changing setting.

Adjust voltage regulator adjustment

⚠ Use insulating mat or dry wood platform when control doors are open.

Tools: Insulated screwdriver, Accurate voltmeter

Open control panel doors and set S1, S2, and S3 per table.
Connect accurate voltmeter to TB1-2 and TB1-3 if no AC meter.
Start genset and bring temperature to normal.
Turn R32 to set no-load voltage.
Stop genset and close control panel doors.

Calibrate electronic governor adjustment

⚠ Keep hands and fingers clear while performing tests on operating equipment.

Tools: Tachometer or frequency meter

Check actuator linkage does not bind through full travel.
Attach tachometer or frequency meter.
Set GAIN adjustment to second mark from zero.
Disconnect governor rod from throttle lever.
Start genset and adjust right stop to 72 Hz for 60 Hz gensets.
Adjust left stop to take up slack and tighten locknut.
Stop, attach governor rod, start, and adjust SPEED to 60 or 50 Hz.
Connect load and adjust GAIN clockwise until stable.

Electronic governor adjustment/calibration adjustment

⚠ Contact with rotating machinery can cause severe personal injury or death.

Tools: Tachometer or frequency meter, Screwdriver

Check actuator linkage does not bind through full travel; ensure terminals 7 and 8 are jumpered.
Attach tachometer to engine or frequency meter to generator if control panel lacks one.
Set Controller GAIN adjustment to second mark from zero.
Disconnect governor rod from throttle lever.
Place Run/Stop/Remote switch in Run position to start genset.
Adjust right stop screw on mechanical governor to obtain 72 Hz (2160 r/min) for 60 Hz gensets or 62 Hz (1860 r/min) for 50 Hz gensets.
Adjust left stop screw to just take up slack, then tighten locknut without binding shaft.
Stop genset, attach governor rod to throttle lever, start, and adjust Controller SPEED screw for 60 Hz or 50 Hz.
Connect full rated load; if genset cannot manage load, shorten governor rod one-half turn and repeat; tighten locknuts.
Connect 1/4 rated load; turn GAIN screw clockwise until actuator hunts, then back off until stable.
Stop genset, wait 30 seconds for turbo coast down if equipped, restart, and check for speed overshoot.
Restart genset and check frequency and stability under various loads.
Stop genset and remove tachometer or frequency meter if attached.

Fan Belt Adjustment adjustment

Loosen alternator bolt passing through elongated slot in mounting bracket.
Slide alternator until fan belt tension is 60 lbs (267 N).
Tighten alternator mounting bolt to lock alternator in place.
Check tension and repeat if necessary.

Voltage adjust potentiometer R21 adjustment

⚠ Contact with high voltage can cause severe personal injury or death.

Tools: Screwdriver

Loosen locking nut of R21 on control front panel and adjust R21 to mid-range.
Start genset and operate to bring temperature to normal.
With no load, turn Phase Selector switch to read output voltage/current.
Adjust R32 on voltage regulator for approximate desired voltage.
Fine-adjust voltage with R21; tighten locking nut carefully without changing setting.
Move Phase Selector switch to Off, stop genset, and set control for standby readiness.

Voltage regulator adjustment adjustment

⚠ Contact with high voltage can cause severe personal injury or death.

Tools: Insulated screwdriver, Accurate voltmeter

Open control panel doors and set S1, S2, S3 per correct stability range and mode.
With AC meter option use panel meter; without it connect accurate voltmeter to regulator TB1-2 and TB1-3.
Start genset and operate to bring temperature to normal.
Using insulated screwdriver, turn R32 potentiometer to increase or decrease no-load voltage to proper setting.
Stop genset, close control doors, and set control for operation readiness.

Control switch check diagnostic

Tools: Ohmmeter

Remove battery B+ cable.
Place ohmmeter across switch contacts.
Open and close switch while observing ohmmeter; normally open should show infinite open and continuity closed; normally closed opposite.

Fuel solenoid check diagnostic

Tools: Jumper wire

Remove harness B+ lead connection from fuel solenoid and jumper separate B+ connection to terminal.
Injection pump should click.
If no click is heard, replace fuel solenoid.

Relay check diagnostic

Tools: Voltmeter, 12 VDC source

Connect 12 VDC across relay coil terminals; relay should activate if coil is okay.
Connect 12 VDC to one side of relay contacts.
Connect voltmeter between other side of contacts and 12-volt source; 12 volts when relay energized indicates contact is okay.

Solenoid check diagnostic

Tools: Voltmeter, Jumper wires

Apply battery positive (B+) to terminal marked S.
Jumper a ground wire to solenoid ground bracket; solenoid should activate.
If contacts are good, 12 VDC should be read between terminal 1 and ground; voltage drop across contact should not exceed one volt.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Voltage reconnection

Voltage	Phase	Connection	Leads	Notes
208 VAC		Switch S1 position 1	stator T7 and T8	Transformer TX1 primary H1-H3
240 VAC		Switch S1 positions 2 and 3	stator T7 and T8	Transformer TX1 primary H3-H5

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Common questions

What size generator is the Cummins/Onan DGAB?

The Cummins/Onan DGAB is rated 20 kW standby (25.0 kVA).

What engine is in the Cummins/Onan DGAB?

The Cummins/Onan DGAB is powered by the Cummins/Onan 4A2.3 engine.

What fuel does the Cummins/Onan DGAB use?

The Cummins/Onan DGAB runs on 2-D Diesel.

What is the oil capacity of the Cummins/Onan DGAB?

The Cummins/Onan 4A2.3 engine in the Cummins/Onan DGAB has an oil capacity of 8.5 liters.

What is the cooling system capacity of the Cummins/Onan DGAB?

The Cummins/Onan DGAB cooling system holds 11.5 liters (3.0 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

What voltages is the Cummins/Onan DGAB available in?

The Cummins/Onan DGAB is offered in 12 V, 1 and 3-phase.

What battery does the Cummins/Onan DGAB use?

The Cummins/Onan DGAB uses 1 battery, 12 V each, 530 CCA, group 31, per the manufacturer specification sheet. The starting system is 12 V DC.

What alternator does the Cummins/Onan DGAB use?

The Cummins/Onan DGAB uses a YD alternator. It has 4 poles.

Which oil filter part number does the Cummins/Onan DGAB take?

The Cummins/Onan DGAB uses oil filter part number 51592.

Troubleshooting

Symptoms & remedies

Symptom	Cause	Remedy
PRE HI ENGINE TEMP lamp lights. Engine continues to operate.	Indicates engine has begun to overheat and engine temperature has risen to approximately 202°F (94°C).	If generator is powering non-critical and critical loads and cannot be shutdown, use the following: Reduce load if possible by turning off non-critical loads; Check air inlets and outlets and remove any obstructions to airflow; Open doors or windows in generator area to increase ventilation. If engine can be stopped, follow procedure in step 3.
Green RUN lamp lights following engine start-up.	Indicates all engine systems are normal.	No corrective action required.
HI ENG TEMP lamp lights. Engine shuts down.	Indicates engine has overheated (engine temperature has risen above 222°F/106°C) or coolant level is low (sets with coolant level sensor).	Allow engine to cool down completely before proceeding with the following checks: Check coolant level and replenish if low. Look for possible coolant leakage points and repair if necessary; Check for obstructions to cooling airflow and correct as necessary; Check for a slipping fan belt and tighten if loose; Reset control and restart after locating and correcting problem. Contact an authorized dealer or distributor if none of the above.
PRE LO OIL PRES lamp lights. Engine continues to operate.	Indicates engine oil pressure has dropped to 20 psi (138 kPa).	If generator is powering critical loads and cannot be shut down, wait until next shutdown period and then follow step 5 procedure. If engine can be stopped, follow procedures in step 5.
LO OIL PRES lamp lights. Engine shuts down	Indicates engine oil pressure has dropped to 14 psi (97 kPa).	Check oil level, lines and filters. If oil system is okay but oil level is low, replenish. Reset control and restart. Contact an authorized dealer or distributor if oil pressure is not in the range of 30 to 55 psi (206 to 379 kPa).
OVERCRANK lamp lights and engine stops cranking. or Engine runs, shuts down, and LO OIL PRES lamp lights.	Indicates possible fuel system problem.	Check for empty fuel tank, fuel leaks, or plugged fuel lines and correct as required; Check for dirty fuel filter and replace if necessary (see MAINTENANCE section); Check for dirty or plugged air filter and replace if necessary (see MAINTENANCE section); Refer to Step 5; Reset the control and restart after correcting the problem. Contact an authorized dealer or distributor for service if none of the above.

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Cummins/Onan DGAB troubleshooting guide (25 entries) →

Parts

Part #	Description	Qty	System
122-0550	Filter, Oil	1	Oil filter	Amazon eBay $21.84 NAPA $18.20
122-0712	Oil Filter		Oil filter	Amazon eBay $7.99 KuduParts $11.00
132-0276	Impeller kit w/cover & gasket		Impeller	Amazon eBay
132-0317	Sea Water Pump Impeller		Impeller	Amazon eBay
149-1758	Fuel Filter Element		Fuel filter	Amazon eBay $26.88 NAPA $41.51
193-0244	Sender, Oil Pressure (E1)	1	Sensor	Amazon eBay
309-0169	Switch, Low Oil Pressure	1	Sensor	Amazon eBay
333-0220	Glow Plug (12 Volt)	1	Glow plug	Amazon eBay
511-0147-14	Water Pump Belt		Belt	Amazon eBay NAPA $5.35
ES-1179-2	FAN BELT	1	Belt	Amazon eBay
FS1245	Fuel Filter		Fuel filter	Amazon eBay
FS1343	Standard Air Cleaner		Air filter	Amazon eBay
LS-1028-2	DIPSTICK, OIL FILTER, AND FILL CAP (Figure 4-6)	1	Oil filter	Amazon eBay
110-3719	Short block	1	Service part / kit	eBay
718-1067	Screw. Hex Head	1	Service part / kit	Amazon eBay
C-1089	CRANKCASE BREATHER (Figure 4-7)	1	Service part / kit	Amazon eBay
ES-1178-2	BATTERY CONNECTIONS (Figure 4-4)	1	Service part / kit	Amazon eBay
ES-1789-1	10-Light Control		Service part / kit	Amazon eBay
M-1753	EXHAUST AND FUEL SYSTEM CHECKS (Figure 4-1)	1	Service part / kit	Amazon eBay
TB21	TERMINAL BLOCK	1	Service part / kit	Amazon Amazon Amazon eBay eBay eBay NAPA $224.81 FridayParts $57.30
sa377	Resonator	1	Service 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.

Available documents

Operator's manual — 934-0125 Onan DGAB DGAC DGAD DGAE Diesel Genset Operators manual (08-1990)b (Onan)Parts manual — 0932-0112 Onan Post-Sale Literature Index (07-1998) (Cummins/Onan)Parts manual — 934-0236 Onan DGAB DGAC DGAD (Spec F) DGAE (Spec C) DL4 DL6 (Spec C-F) DLT (Spec A-C) A41 A61 (Spec E) A61T (Spec B) (08-2011) (Cummins/Onan)Service manual — 934-0125 Onan DGAB DGAC DGAD DGAE Diesel Genset Operators manual (08-1990) (Cummins/Onan)Service manual — 934-0502 Onan DGAB DGAC DGAD DGAE 4A2 6A3 6AT3 Diesel Genset & Detector Service manual (03-1991) (Onan)Service manual — 934-0502 Onan DL4 DL6 DL6T QSA3 QSA4 QSA6 Diesel Genset & Detector Service manual (03-1991) (Onan)

This page was generated from the 6 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.

Cummins/Onan DGAB Generator Set

Service parts for the DGAB

Oil system

Electrical

Specifications

Engine

Maintenance & consumables

Service intervals

Service specifications

Recommended fluids

Fault codes

Procedures

Voltage reconnection

Common questions

Troubleshooting

Symptoms & remedies

Repair guides

Parts

Available documents