Service parts for the GGLB
Grouped by system, with how many of each the parts manual calls for.
Prices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | natural gas |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 150 kW |
| Standby kVA | 188 |
| Prime power | 150 kW |
| Controller | PowerCommand 2100 |
| Oil capacity | 7.6 L |
| Voltage options | 120/208 V, 139/240 V, 220/380 V, 240/415 V, 277/480 V, 120/240 V, 347/600 V |
| Phase | three phase reconnectable / three phase non-reconnectable / single phase non-reconnectable |
| Power factor | 1.0 |
| Battery voltage | 12-volt, negative ground V |
| Coolant capacity | 22.3 L |
| Max ambient | 50 °C |
| Dimensions (L×W×H) | 2496×1016×1422 mm |
| Dry weight | 1157 kg |
| Wet weight | 1213 kg |
Engine
| Oil capacity | 7.6 L |
|---|---|
| Coolant capacity | 22.3 L |
| Displacement | 8.1 L |
| Aspiration | Turbocharged and CAC |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the General Motors GM8.1L-HO| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil filter | Filter, Oil (Fleetguard) (Not Shown) | LF16109 | eBay NAPA $3.59 | ||
| Coolant | 122oF (50oC) ambient radiator cooling system | 22.3 L | — | ||
| Oil | 8.0 qt (7.6 L) | 7.6 L | — |
Service specifications
17| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Other | AC Waveform Total Harmonic Distortion | <5% total no load to full linear load; <3% for any single harmonic | % | |
| Other | Maximum Coolant Static Head | 10.0 (3.0) | ft (m) | |
| Other | Telephone Harmonic Factor (THF) | <3 | ||
| Other | Telephone Influence Factor (TIF) | <50 | per NEMA MG1-22.43 | |
| Power | BMEP at Rated Load (natural gas, standby) | 200.0 (1379.0) | psi (kPa) | |
| Power | BMEP at Rated Load (propane, standby) | 187 (1289) | psi (kPa) | |
| Power | Regenerative Power | 15.00 | kW | |
| Pressure | Max Back Pressure (exhaust) | 20.0 (5.0) | in H2O (kPa) | |
| Pressure | Maximum Air Cleaner Restriction | 6.0 (1.5) | in H2O (kPa) | |
| Pressure | Maximum Coolant Friction Head | 2.0 (13.8) | psi (kPa) | |
| Speed | Overspeed Limit | 2400 ±50 | rpm | |
| Speed | Piston Speed | 1310.0 (6.7) | ft/min (m/s) | |
| Speed | Random Frequency Variation | ±0.5 | % | |
| Temperature | Exhaust Temperature (natural gas) | 1215.0 (657.2) | oF (oC) | |
| Temperature | Exhaust Temperature (propane) | 1185 (640.5) | oF (oC) | |
| Voltage | Random Voltage Variation | ±1.0 | % | |
| Voltage | Voltage Regulation, No Load to Full Load | ±1.0 | % |
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 | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Fuel | Natural gas is standard; LP vapor, LP liquid, and dual fuel optional | Minimum operating pressure 5.0 in. H2O (1.2 kPa); maximum operating pressure 13.6 in. H2O (3.4 kPa) |
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
How many kW is the Cummins/Onan GGLB?
The Cummins/Onan GGLB is rated 150 kW standby (188.0 kVA).
What engine does the Cummins/Onan GGLB use?
The Cummins/Onan GGLB is powered by the General Motors GM8.1L-HO engine.
What fuel type does the Cummins/Onan GGLB take?
The Cummins/Onan GGLB runs on natural gas.
How much oil does the Cummins/Onan GGLB take?
The General Motors GM8.1L-HO engine in the Cummins/Onan GGLB has an oil capacity of 7.6 liters.
How much coolant does the Cummins/Onan GGLB hold?
The Cummins/Onan GGLB cooling system holds 22.3 liters (5.9 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.
What is the dry weight of the Cummins/Onan GGLB?
The Cummins/Onan GGLB has a dry weight of 1157 kg (2550 lb).
What voltage does the Cummins/Onan GGLB produce?
The Cummins/Onan GGLB is offered in 120/208 V, 139/240 V, 220/380 V, 240/415 V, 277/480 V, 120/240 V, three phase reconnectable / three phase non-reconnectable / single phase non-reconnectable-phase.
Which oil filter part number does the Cummins/Onan GGLB take?
The Cummins/Onan GGLB uses oil filter part number LF16109.
Troubleshooting
6Fault codes
| Code | Meaning |
|---|---|
| 121 | Speed Signal Lost |
| 135 | Oil Pressure Sensor High |
| 141 | Oil Pressure Sensor Low |
| 143 | Pre-Low Oil Pressure Sensor |
| 144 | Coolant Temperature Sensor High |
| 145 | Coolant Temperature Sensor Low |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Cummins/Onan GGLB troubleshooting guide (53 entries) →
Parts
9| Part # | Description | Qty | System | |
|---|---|---|---|---|
| A028Z105 | Sender, Low Coolant | 1 | Sender | Amazon eBay |
| A029A407 | Gasket, Mixer to Adapter | 1 | Gasket | eBay |
| LF16109 | Filter, Oil (Fleetguard) (Not Shown) | 1 | Oil filter | eBay NAPA $3.59 |
| A026D979 | Converter, Catalytic | 1 | Service part / kit | eBay |
| A026E804 | Muffler | 1 | Service part / kit | eBay |
| A026F055 | Muffler | Service part / kit | eBay | |
| A026H167 | Regulator, Fuel / Regulator, Fuel (Vapor NG/LP) | 1 | Service part / kit | eBay |
| A026H173 | Regulator, Fuel | 1 | Service part / kit | eBay |
| A026H952 | Control, Fuel | 1 | Service part / kit | 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 3 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.