Service parts for the NL773LW4
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredFuel system
1 requiredBelts
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | diesel |
|---|---|
| Frequency | 50.0 Hz |
| Standby power | 9 kW |
| Prime power | 9 kW |
| Emissions | EPA Tier IV |
| Controller | S-1B |
| Oil capacity | 4.9 L |
| Alternator | PX-309K2 |
| Voltage options | 120 V, 240 V, 37 V, 75 V |
| Phase | 1 Ph |
| Rated current | 75 A |
| Power factor | 1.0 PF |
| Dimensions (L×W×H) | 965×520×797 mm |
| Dry weight | 252 kg |
Engine
| Oil capacity | 5.0 L |
|---|---|
| Displacement | 1.13 L |
| Aspiration | Naturally aspirated |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Northern Lights L773L| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Breathing | RE529956 | Amazon eBay | ||
| Fuel filter | Large spin-on fuel filter. Flexible fuel lines routed to fuel manifold for easy tank connectivity. | 24-52020 | Amazon eBay $24.71 NAPA $15.34 | ||
| Oil filter | Full flow, spin-on oil filter with bypass. | 24-02001 | Amazon eBay $23.45 NAPA $9.09 | ||
| Battery | — | ||||
| Belt | 40-08605 | eBay | |||
| Coolant | — | ||||
| Oil | 5 qt. (4.9 ltr) oil capacity for better lubrication. | 5.0 qt | — | ||
| Spark plug | — |
Recommended fluids
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Fuel | ULTRA LOW SULFUR FUEL ONLY | Label required near fuel tank fill port per U.S. EPA regulations. |
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 Northern Lights NL773LW4?
The Northern Lights NL773LW4 is rated 9 kW standby.
Which engine powers the Northern Lights NL773LW4?
The Northern Lights NL773LW4 is powered by the Northern Lights L773L engine.
Is the Northern Lights NL773LW4 diesel or gas?
The Northern Lights NL773LW4 runs on diesel.
What is the oil capacity of the Northern Lights NL773LW4?
The Northern Lights L773L engine in the Northern Lights NL773LW4 has an oil capacity of 5.0 liters.
What is the dry weight of the Northern Lights NL773LW4?
The Northern Lights NL773LW4 has a dry weight of 252 kg (555 lb).
What voltages is the Northern Lights NL773LW4 available in?
The Northern Lights NL773LW4 is offered in 120 V, 240 V, 37 V, 75 V, 1 Ph-phase.
What alternator does the Northern Lights NL773LW4 use?
The Northern Lights NL773LW4 uses a PX-309K2 alternator.
Which oil filter part number does the Northern Lights NL773LW4 take?
The Northern Lights NL773LW4 uses oil filter part number 24-02001.
What fuel filter fits the Northern Lights NL773LW4?
The Northern Lights NL773LW4 uses fuel filter part number 24-52020.
What air filter fits the Northern Lights NL773LW4?
The Northern Lights NL773LW4 uses air filter part number RE529956.
Parts
93| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 025100016 | Seal Washer | 1 | Seal | Amazon eBay |
| 050209107 | Oil Seal | 1 | Seal | Amazon eBay FridayParts $44.63 |
| 052109078 | O-ring, Relief Valve | 1 | Seal | Amazon eBay |
| 052109113 | O-ring | 2 | Seal | Amazon eBay |
| 068115200 | Tube | 1 | Hose | Amazon eBay |
| 110996800 | Gasket | 1 | Gasket | Amazon eBay |
| 140546020 | Filter Joint | 1 | Gasket | Amazon eBay |
| 185046210 | Alternator Assembly | 1 | Alternator | Amazon eBay FridayParts $79.00 |
| 24-02001 | Oil Filter | 1 | Oil filter | Amazon eBay $23.45 NAPA $9.09 |
| ONL773LW4 | General Policy | 1 | Lockout tagout | Amazon eBay |
| RE529956 | Breathing | 1 | Air filter | Amazon eBay |
| 010109235 | Bolt | 20 | Service part / kit | Amazon eBay |
| 010109238 | Plug | 2 | Service part / kit | Amazon eBay |
| 010109340 | Bolt | 6 | Service part / kit | Amazon eBay |
| 010700845 | Bolt | 2 | Service part / kit | Amazon eBay |
| 010810840 | Bolt | 4 | Service part / kit | Amazon eBay |
| 010810845 | Bolt | 2 | Service part / kit | Amazon eBay |
| 011310612 | Bolt | 1 | Service part / kit | Amazon eBay |
| 011510840 | Bolt | 2 | Service part / kit | Amazon eBay |
| 012110620 | Stud M6 x 1.0 x 20 mm | 2 | Service part / kit | Amazon eBay |
| 012110635 | Stud | 1 | Service part / kit | Amazon eBay |
| 012110660 | Stud | 1 | Service part / kit | Amazon eBay |
| 015140408 | Screw | 1 | Service part / kit | Amazon eBay |
| 015140425 | Screw | 2 | Service part / kit | Amazon eBay |
| 020109075 | CON ROD NUT | 6 | Service part / kit | Amazon eBay |
| 020210010 | Nut | 1 | Service part / kit | Amazon eBay |
| 020800018 | Nut | 1 | Service part / kit | Amazon eBay |
| 026100010 | Washer | 1 | Service part / kit | Amazon eBay |
| 027100010 | Spring washer | 1 | Service part / kit | Amazon eBay |
| 030300816 | Spring Pin | 1 | Service part / kit | Amazon eBay |
| 030309005 | Spring Pin | 2 | Service part / kit | Amazon eBay |
| 030500512 | Dowel Pin | 2 | Service part / kit | Amazon eBay |
| 030500612 | Dowel Pin | 6 | Service part / kit | Amazon eBay |
| 030500616 | Dowel Pin | 2 | Service part / kit | Amazon eBay |
| 030501025 | Dowel Pin | 2 | Service part / kit | Amazon eBay |
| 030509020 | Dowel Pin | 1 | Service part / kit | Amazon eBay |
| 034100508 | Key | 1 | Service part / kit | Amazon eBay |
| 036500021 | Snap Ring | 6 | Service part / kit | Amazon eBay |
| 036509005 | Snap Ring | 1 | Service part / kit | Amazon eBay |
| 040126210 | Bearing | 2 | Service part / kit | Amazon eBay |
| 040306203 | Bearing | 1 | Service part / kit | Amazon eBay |
| 042303015 | Bearing | 1 | Service part / kit | Amazon eBay |
| 064100045 | Expansion Plug | 1 | Service part / kit | Amazon eBay |
| 064210015 | Expansion Plug, 15 mm | 1 | Service part / kit | Amazon eBay |
| 064210025 | Expansion Plug, 25 mm | 1 | Service part / kit | Amazon eBay |
| 064210035 | Expansion Plug, 35 mm | 2 | Service part / kit | Amazon eBay |
| 064210040 | Expansion Plug, 40 mm | 2 | Service part / kit | Amazon eBay |
| 110101520 | Cylinder Block Assembly - (includes keys #2- 21) | 1 | Service part / kit | Amazon eBay |
| 110156400 | Bearing Holder Assembly (includes keys #6 & #7) | 1 | Service part / kit | Amazon eBay |
| 110156410 | Bearing Holder Assembly (includes keys #6 & #7) | 1 | Service part / kit | Amazon eBay |
| 110156420 | Bearing Holder Assembly (includes keys #6 & #7) | 1 | Service part / kit | Amazon eBay |
| 110701110 | Oil Pan | 1 | Service part / kit | Amazon eBay |
| 110756490 | Dipstick Tube | 1 | Service part / kit | Amazon eBay |
| 115017461 | Piston Kit; S.T.D. | 3 | Service part / kit | Amazon eBay |
| 115026340 | Connecting Rod Assembly (includes keys #20 - #22) | 3 | Service part / kit | Amazon eBay FridayParts $79.00 |
| 115107901 | Ring Kit; S.T.D. | 3 | Service part / kit | Amazon eBay |
| 115176150 | Connecting Rod Bolt | 6 | Service part / kit | Amazon eBay |
| 115256830 | Crankshaft Assembly (includes keys #2 - 4 & #24) | 1 | Service part / kit | Amazon eBay FridayParts $510.50 |
| 115276180 | Crankshaft Gear | 1 | Service part / kit | Amazon eBay |
| 115326231 | Piston Pin | 3 | Service part / kit | Amazon eBay |
| 115356720 | Flywheel Assembly (includes key #28) | 1 | Service part / kit | Amazon eBay |
| 115376130 | Ring Gear | 1 | Service part / kit | Amazon eBay |
| 115396552 | Crankshaft Pulley | 1 | Service part / kit | Amazon eBay |
| 120116160 | Tappet | 6 | Service part / kit | Amazon eBay FridayParts $179.99 |
| 120456222 | Push Rod | 6 | Service part / kit | Amazon eBay FridayParts $98.50 |
| 140036220 | Relief Valve Assembly | 1 | Service part / kit | Amazon eBay FridayParts $68.50 |
| 165296142 | Idle Gear Shaft Assembly | 1 | Service part / kit | Amazon eBay FridayParts $185.00 |
| 185446217 | Plate, complete | 1 | Service part / kit | Amazon eBay |
| 185446218 | Stator, complete | 1 | Service part / kit | Amazon eBay |
| 185446219 | Flywheel, complete | 1 | Service part / kit | Amazon eBay |
| 185446220 | Clamp | 1 | Service part / kit | Amazon eBay |
| 185716200 | Plate | 1 | Service part / kit | Amazon eBay |
| 198416270 | Dipstick | 1 | Service part / kit | Amazon eBay |
| 198466010 | Blank Plug | 4 | Service part / kit | Amazon eBay |
| 198466030 | Plug | 4 | Service part / kit | Amazon eBay |
| 198466050 | Blank Plug | 1 | Service part / kit | Amazon eBay |
| 198486770 | Bushing | 1 | Service part / kit | Amazon eBay |
| 198517125 | Bushing | 3 | Service part / kit | Amazon eBay FridayParts $33.86 |
| 198517572 | Bearing; Upper S.T.D. (formerly #198517571 & 198517571) | 3 | Service part / kit | Amazon eBay |
| 198517576 | Bearing; Upper U.S. 0.25 mm (formerly #198517574 & 198517575) | 3 | Service part / kit | Amazon eBay |
| 198517579 | Bearing; Upper U.S. 0.50 mm (formerly #198517577 & 198517578) | 3 | Service part / kit | Amazon eBay |
| 198517582 | Bearing; Lower S.T.D. (formerly #198517580 & 198517581) | 3 | Service part / kit | Amazon eBay |
| 198517586 | Bearing; Lower U.S. 0.25 mm (formerly #198517584 & 198517585) | 3 | Service part / kit | Amazon eBay |
| 198517589 | Bearing; Lower U.S. 0.50 mm (formerly #198517587 & 198517588) | 3 | Service part / kit | Amazon eBay |
| 198517592 | Bush; S.T.D. (formerly #198517591) | 1 | Service part / kit | Amazon eBay |
| 198517596 | Bush; U.S. 0.25 (formerly #198517595) | 1 | Service part / kit | Amazon eBay |
| 198517599 | Bush; U.S. 0.50 (formerly #198517598) | 1 | Service part / kit | Amazon eBay |
| 198517602 | Bearing; S.T.D. | 6 | Service part / kit | Amazon eBay |
| 198517606 | Bearing; U.S, 0.25 (formerly #198517604 & 198517605) | 6 | Service part / kit | Amazon eBay |
| 198517609 | Bearing; U.S. 0.50 (formerly #198517607 & 198517608) | 6 | Service part / kit | Amazon eBay |
| 198736050 | Drain Cock | 1 | Service part / kit | Amazon eBay |
| 199236510 | Collar | 1 | Service part / kit | Amazon eBay |
| D-4652 | EXHAUST ELBOW | 32 [1.25] | 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.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 0.93 | 3.52 | |
| Prime | 50% | 0.51 | 1.93 |
| Prime | 100% | 0.72 | 2.72 |
Available documents
Spec sheet — B147 NL773LW4 (Northern Lights)Spec sheet — S147 NL773LW4 spec sheet V1 (Northern Lights)Spec sheet — S148 NL773LW4E spec sheet V1 (Northern Lights)Parts manual — P773-4 (Northern Lights)
This page was generated from the 4 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.