Service parts for the GEAB
Grouped by system, with how many of each the parts manual calls for.
Oil system
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | Natural Gas, Propane |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 12 kW |
| Prime power | 10 kW |
| Oil capacity | 4.0 L |
| Voltage options | 12 V |
| Phase | Single Phase |
| Rated current | 65 A |
| Power factor | 0.8 |
| Battery cranking | 325 CCA |
| Battery voltage | 12 V |
| Coolant capacity | 11.5 L |
Maintenance & consumables
for the Cummins/Onan 4-cyl.| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | 200 hr | |||
| Fuel filter | — | ||||
| Oil filter | Oil Filter | 928-0129 | Amazon eBay | ||
| Battery | — | 90 hr | |||
| Belt | — | 500 hr | |||
| Coolant | 11.0 L | — | 90 hr | ||
| Coolant filter | — | ||||
| Oil | — | 200 hr | |||
| Spark plug | — | 365 hr |
Common questions
What is the power rating of the Cummins/Onan GEAB?
The Cummins/Onan GEAB is rated 12 kW standby.
Which engine powers the Cummins/Onan GEAB?
The Cummins/Onan GEAB is powered by the Cummins/Onan 4-cyl. engine.
What kind of fuel does the Cummins/Onan GEAB run on?
The Cummins/Onan GEAB runs on Natural Gas, Propane.
What's the oil capacity on a Cummins/Onan GEAB?
The Cummins/Onan 4-cyl. engine in the Cummins/Onan GEAB has an oil capacity of 4.5 liters.
What is the cooling system capacity of the Cummins/Onan GEAB?
The Cummins/Onan GEAB cooling system holds 11.5 liters (3.0 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.
What is the prime power rating of the Cummins/Onan GEAB?
The Cummins/Onan GEAB is rated 10 kW prime (25 kVA), against 12 kW standby.
What voltages is the Cummins/Onan GEAB available in?
The Cummins/Onan GEAB is offered in 12 V, Single Phase-phase.
What battery does the Cummins/Onan GEAB use?
The Cummins/Onan GEAB uses 12 V each, 325 CCA, per the manufacturer specification sheet.
What oil filter does the Cummins/Onan GEAB use?
The Cummins/Onan GEAB uses oil filter part number 928-0129.
Troubleshooting
6Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| PRE HET/LOP lamp lights. Engine continues to operate. | Indicates engine has begun to overheat and engine temperature has risen to approximately 205°F (97°C) or coolant level is low. | A. Reduce load if possible by turning off non-critical loads. b. Check air inlets and outlets and remove any obstructions to airflow. |
| HI ENG TEMP lamp lights. Engine shuts down. | Indicates engine has overheated (engine temperature has risen above 215°F/102°C) or coolant level is low. | A. Check coolant level and replenish if low. Look for possible coolant leakage points and repair if necessary. b. Check for obstructions to cooling airflow and correct as necessary. c. Check for a slipping fan belt and tighten if loose. d. Reset control and restart after locating and correcting problem. Contact an authorized service center if none of the above. |
| LO OIL PRES lamp lights. Engine shuts down. | Indicates engine oil pressure has dropped to 30 psi (207 kPa). | NOTE: See also step 5. |
| OVERCRANK lamp lights and engine stops cranking. | Indicates possible fuel system problem. | A. Check for empty fuel tank (LPG Vapor), fuel leaks, or plugged fuel lines and correct as required. b. Check for dirty fuel filter and replace if necessary (see Maintenance section). c. Check for dirty or plugged air filter and replace if necessary (see Maintenance section). d. Reset the control and restart after correcting the problem. Contact an authorized service center for service if none of the above. |
| Engine runs and then shuts down, OVERSPEED lamp lights. | Contact an authorized service center for service. | |
| SWITCH OFF lamp flashes. | Indicates Run/Stop/Remote switch is in the Stop position which will prevent automatic starting if an automatic transfer switch is used. Move the Run/Stop/Remote switch to the Remote position for automatic starting. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Cummins/Onan GEAB troubleshooting guide (22 entries) →
Parts
5| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 928-0129 | Oil Filter | 2 | Oil filter | Amazon eBay |
| FS-1176s | Crankcase Oil and Filter | Gas mixer | Amazon eBay | |
| LS1169s | FILTER | 1 | Oil filter | Amazon eBay |
| 613-6670 | OUTLINE DRAWING | Service part / kit | Amazon eBay | |
| 928-0608 | Manual, Onan Installation | 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
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.