Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 10 kW |
| Standby kVA | 12 |
| Prime power | 8 kW |
| Oil capacity | 3.8 L |
| Alternator | Northern Lights NL378 |
| Voltage options | 12 V |
| Phase | Single |
| Rated current | 10 A |
| Circuit breaker | 10 A |
| Battery group | 100 amp hrs |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Coolant capacity | 3 L |
| Dimensions (L×W×H) | 1113×476×821 mm |
| Dry weight | 293 kg |
Maintenance & consumables
for the Yanmar 3TNE78A-ADCL| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Northern Lights brand | 24-27302 | 100 hr | Amazon eBay PartsGeek | |
| Fuel filter | Northern Lights brand | 129100-55650 | 200 hr | PartsGeek FridayParts $9.70 | |
| Oil filter | Service CC 30 weight oil | — | 100 hr | find | |
| Belt | V-belt | — | 2400 hr | find | |
| Oil | Service CC 30 weight oil | — | 100 hr |
Common questions
What is the power rating of the Northern Lights NL378?
The Northern Lights NL378 is rated 10 kW standby (12.9 kVA).
What engine does the Northern Lights NL378 use?
The Northern Lights NL378 is powered by the Yanmar 3TNE78A-ADCL engine.
What fuel does the Northern Lights NL378 use?
The Northern Lights NL378 runs on Diesel.
What alternator does the Northern Lights NL378 use?
The Northern Lights NL378 uses a Northern Lights NL378 alternator.
What fuel filter does the Northern Lights NL378 use?
The Northern Lights NL378 uses fuel filter part number 129100-55650.
What air filter does the Northern Lights NL378 use?
The Northern Lights NL378 uses air filter part number 24-27302.
Troubleshooting
2Symptoms & remedies
| Symptom | Remedy |
|---|---|
| Temperature gauge shows temperature above 205°F (97°C) | Shut off the engine immediately. Use the Trouble Shooting Guide in this manual to isolate the cause of the overheat. |
| Temperature gauge shows temperature within normal range but shutdown is activated | Check the engine crankcase oil level. If the oil level is low, fill with recommended lubricating oil and restart. Watch the oil pressure gauge carefully and shut off the engine if it does not show a normal reading (20-60 PSI) after a few seconds of operation. If the oil level is normal, DO NOT restart the engine. Call your dealer for assistance. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
66| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 102103-55520 | O-Ring | 1 | Seal | PartsGeek FridayParts $25.99 |
| 104200-59170 | Gasket | 1 | Gasket | PartsGeek |
| 119600-34800 | Oil Pressure Switch | 1 | Sensor | PartsGeek |
| 119810-01780 | Oil Seal | 1 | Seal | PartsGeek |
| 119810-42001 | Coolant Pump | 1 | Pump | PartsGeek FridayParts $72.00 |
| 119810-55650 | Element | 1 | Fuel filter | eBay $11.89 PartsGeek |
| 119813-12110 | Intake Manifold Gasket | 1 | Gasket | PartsGeek |
| 119813-13110 | Exhaust Manifold Gasket | 1 | Gasket | PartsGeek |
| 119818-01330 | Cylinder Head Gasket | 1 | Gasket | PartsGeek |
| 119818-53000 | Nozzle Assembly | 1 | Injector | PartsGeek |
| 119820-44560 | Hose, Radiator Inlet | 1 | Hose | PartsGeek |
| 119831-42290 | Drive Belt | 1 | Belt | PartsGeek FridayParts $14.50 |
| 119865-11310 | Bonnet Gasket | 1 | Gasket | PartsGeek |
| 121000-13201 | Gasket Manifold to Muffler | 1 | Gasket | PartsGeek |
| 121250-44901 | Temperature Switch 110°C | 1 | Sensor | PartsGeek FridayParts $13.50 |
| 121460-39450 | Pressure Switch | 1 | Sensor | PartsGeek |
| 121850-51960 | O-Ring | 1 | Seal | PartsGeek |
| 124160-11340 | SEAL, VALVE STEM | 2 | Seal | PartsGeek FridayParts $360.00 |
| 124240-01883 | Gasket | 1 | Gasket | PartsGeek |
| 124465-44950 | Gasket | 1 | Gasket | PartsGeek |
| 124950-11340 | SEAL, VALVE STEM | 2 | Seal | PartsGeek |
| 129001-32001 | Oil Pump Assembly | 1 | Pump | PartsGeek FridayParts $85.00 |
| 129100-52100 | Fuel Feed Pump | 1 | Pump | PartsGeek FridayParts $25.99 |
| 129129-77350 | O-Ring | 1 | Seal | PartsGeek |
| 129150-32020 | Gasket | 1 | Gasket | PartsGeek |
| 129150-35041 | Gasket | 1 | Gasket | PartsGeek |
| 129150-35111 | Gasket | 1 | Gasket | PartsGeek |
| 129150-42020 | Cooling Water Pump Gasket | 1 | Gasket | PartsGeek |
| 129150-42320 | O-RING | 1 | Seal | PartsGeek |
| 129150-49811 | Gasket | 1 | Gasket | PartsGeek FridayParts $128.00 |
| 129150-77511 | Gasket | 1 | Gasket | PartsGeek |
| 129155-49800 | Thermostat | 1 | Thermostat | PartsGeek FridayParts $16.00 |
| 129155-52020 | Gasket | 1 | Gasket | PartsGeek |
| 129619-12210 | Hose | 1 | Hose | PartsGeek |
| 129619-12520 | Housing | 1 | Air filter | PartsGeek |
| 129795-01800 | Oil Seal | 1 | Seal | PartsGeek |
| 129795-49551 | Gasket | 1 | Gasket | PartsGeek |
| 171301-49010 | Hose, Radiator Inlet | 1 | Hose | PartsGeek |
| 171301-49020 | Hose, Radiator Outlet | 1 | Hose | PartsGeek |
| 22-41016 | Oil Pressure Sender - Single Station | 1 | Sensor | PartsGeek |
| 22-45201 | Temperature Sender 250°F Standard Ground | 1 | Sensor | PartsGeek |
| 22190-080002 | Seal Washer | 1 | Seal | PartsGeek |
| 22190-220002 | Seal Washer | 1 | Seal | PartsGeek |
| 23414-100000 | Gasket | 2 | Gasket | PartsGeek |
| 24-07301 | Oil filter | 1 | Oil filter | PartsGeek |
| 24-27301 | Air filter element | 1 | Air filter | Amazon eBay $44.91 PartsGeek |
| 24-27302 | Air filter element | 1 | Air filter | Amazon eBay PartsGeek |
| 24-50012 | Fuel filter element | 1 | Fuel filter | Amazon eBay PartsGeek |
| 24-55650 | Spin-on fuel filter | 1 | Fuel filter | PartsGeek |
| 24-S50002 | Primary fuel filter | 1 | Fuel filter | PartsGeek |
| 24311-000120 | O-Ring | 3 | Seal | PartsGeek |
| 24311-000160 | O-Ring | 2 | Seal | PartsGeek |
| 24311-000320 | O-RING, 1AP32.0 | 1 | Seal | PartsGeek |
| 24311-240100 | O-Ring | 1 | Seal | PartsGeek |
| 24341-000240 | O-Ring | 1 | Seal | PartsGeek |
| 24341-000280 | O-Ring | 1 | Seal | PartsGeek |
| 24341-000500 | O-Ring, 1A S-50.0 | 1 | Seal | PartsGeek |
| 41-01012 | 74" Hose 5/16" ID Push-On | 1 | Hose | PartsGeek |
| 719800-53100 | Fuel Injector | 1 | Injector | PartsGeek FridayParts $158.60 |
| 719810-01650 | Rear Main Seal Assembly | 1 | Seal | PartsGeek |
| 719989-51310 | Injection Pump | 1 | Pump | PartsGeek |
| 719989-92600 | Gasket Set | 1 | Gasket | PartsGeek |
| 977770-01212 | Liquid Gasket | 1 | Gasket | PartsGeek |
| 15-01001 | Sealing Washer | 1 | Service part / kit | PartsGeek |
| 22-40018 | Circuit Breaker 10 Amp | 1 | Service part / kit | PartsGeek |
| 22-42047 | Relay, SPDT 12V 50A | 1 | Service part / kit | PartsGeek |
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
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 50% | 1.8 | 6.5 |
| Prime | 75% | 2.7 | 10.0 |
| Prime | 100% | 3.6 | 13.2 |
| Standby | 50% | 1.5 | 5.5 |
| Standby | 75% | 2.25 | 8.25 |
| Standby | 100% | 3.0 | 11.0 |