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Northern Lights M773LW3G (9/7 kW) Generator

Northern Lights Northern Lights M773LW3G (9/7 kW) · NL-M773LW family: specifications, its industrial/tractor base engine, cross-referenced parts and where to buy them.

🚜 Base engine likely

The Northern Lights M773LW3G uses a Lugger L773-class block that matches the Shibaura S773L industrial diesel (77×81 mm / 1.131 L). Internal service parts often cross to Shibaura S773L industrial numbers; NL marinizing parts keep Northern Lights numbers. source

1130 ccdisplacement
77×81 mmbore × stroke
3-cylcylinders
from 2010year range (approx)
📋 Full specifications 4 🚜 Industrial / tractor base 🔧 Aftermarket 3

Parts by section · 64 assemblies

The exploded parts diagrams for the Northern Lights M773LW3G (9/7 kW), grouped by system. Open a figure for its callout part numbers and per-variant quantities.

Body

Fig 1 — 6 7 8 9 (5-2)Fig 5 — B-9826 (1-6)Fig 6 — B-9826A (1-7)Fig 7 — Fig. 1-4 (1-8)Fig 8 — Fig. 1-5 (1-9)Fig 9 — 773 1-6a (1-10)Fig 19 — Fig. 3-2 (3-6)Fig 61 — M773LW3 / PX309K2 from to S/N xxxx-46362C (7-3)

Cooling

Fig 16 — Coolant Recovery Tank (3-0)Fig 20 — Coolant Pump and Thermostat Housing (3-7)Fig 21 — Raw Water Pump and Mounting (3-8)Fig 22 — Raw Water Pump Assembly (3-9)Fig 23 — Radiator and Guard, Aluminum (3-11)

Crankshaft & Pistons

Fig 4 — Crankshaft Assembly (1-5)

Electrical

Fig 35 — Marine Units (5-1)Fig 36 — B+ System Marine Units (5-3)Fig 37 — Marine Units (5-5)Fig 38 — B+ System Marine Units (5-7)Fig 39 — Marine Units (5-9)Fig 40 — B+ System Marine Units (5-11)Fig 41 — Marine Units (5-13)Fig 42 — B+ System Marine Units (5-15)Fig 43 — Small Frame Alternators and Starter (5-17)Fig 44 — Medium Frame Alternators 24 V/ 40 Amp & 24V/ 35 Amp (5-18)Fig 45 — NL773alt&starter (5-19)Fig 46 — S-1 Control Panel 12 & 24 Volt (5-20)Fig 47 — B+ Electrical Systems (5-21)Fig 48 — Series 1-B Start-Stop Control Panel 12 & 24 Volt (5-22)Fig 49 — B+ Electrical Systems (5-23)Fig 50 — VDO Ocean Line Black Bezel Gauges (5-24)Fig 51 — VDO Viewline Black Bezel Gauges (5-25)Fig 52 — VDO Viewline Black Bezel Gauges (5-26)Fig 53 — VDO Ocean Line Black Bezel Gauges (5-27)Fig 54 — VDO Viewline Black Bezel Gauges (5-28)Fig 55 — VDO Viewline Black Bezel Gauges (5-31)Fig 56 — Standard Small Frame Alternators (5-32)Fig 57 — Optional Medium Frame Alternators (5-33)

Engine Block & Head

Fig 2 — Cylinder Block Assembly (1-1)Fig 3 — Cylinder Block Assembly (1-3)

Fuel

Fig 24 — Injection Pump and Lines (4-1)Fig 25 — Governor and Timing Gear Case (4-3)Fig 26 — Governor Housing and Timing Gear Case (4-5)Fig 27 — Fuel Filter and Piping (4-7)Fig 28 — NL773LW3 All (4-8)Fig 29 — M773LW3 Up to S/N xxxx-46361C (4-9)Fig 30 — B-9827 (4-10)Fig 31 — B-9827 (4-11)Fig 32 — D-5044 (4-12)Fig 33 — Fig. 4-10 (4-14)Fig 34 — Fig. 4-11 (4-15)

Generator

Fig 60 — Industrial Applications - 308 Frame Generators (7-1)

Inlet & Exhaust

Fig 13 — Air Filter and Housing (2-0)Fig 14 — Air Filter and Housing (2-1)Fig 15 — Exhaust Manifold & Muffler (2-2)Fig 17 — Exhaust Manifold and Heat Exchanger (3-3)Fig 18 — Expansion Tank & Exhaust Manifold M773L (3-5)Fig 64 — Marine Application - with Dry Exhaust (8-1)

Miscellaneous

Fig 58 — Gasket Kits (6-0)Fig 63 — Marine Application (8-0)

Transmission & Mounting

Fig 59 — Marine Applications Up to S/N xxxx-46361C (7-0)Fig 62 — "Gem Series" Marine Unit From S/N xxxx-54637 (7-5)

Valve Train

Fig 10 — Rocker Arm Assembly (1-11)Fig 11 — Rocker Arm Cover (1-12)Fig 12 — Rocker Arm Cover & Intake (1-13)
📚 Manuals & Sources
Specs— none yet
Operator's Manual— none yet
Service / Workshop Manual— none yet
Parts Catalog / List
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Category
Generator
Engine family
NL-M773LW
Year range (approx)
from 2010
Cylinders
3
Bore × stroke
77 × 81 mm
Displacement
1130 cc
Max rpm
1800
Continuous rpm
1500