The Northern Lights 843 engine line groups 5 variant designations. Parts and fitment are pooled here so a cross-reference found on one variant surfaces for the whole family.
| Part # | Description | Category |
|---|---|---|
| 24-22009 | Element, Air Filter | Air filter |
| 24-23100 | Air cleaner element | Air filter |
| 24-23102 | Air Filter Element | Air filter |
| 24-27302 | Element | Air filter |
| 24-28602 | Air Filter Element | Air filter |
| 314531127 | Element (marked #314531065) | Air filter |
| RE529956 | Breathing | Air filter |
| 185046210 | Alternator Assembly | Alternator |
| 185046320 | Alternator, 12 Volt 40 Amp Standard Ground | Alternator |
| 22-40278 | Alternator (24V/40A Standard Ground) | Alternator |
| 22-40333 | Alternator (12V/51A ISO Ground) | Alternator |
| 22-42032 | Alternator, 12 Volt 40 Amp Isolated Ground | Alternator |
| 22-71052 | Alternator (24V/35A ISO Ground) | Alternator |
| 22-78100 | High output alternator (40A iso ground) 12V w/ adj. regulator | Alternator |
| 185446277 | Regulator Assembly | Avr |
| 22-40334 | D.C. Voltage Regulator 12 Volt | Avr |
| DST-100-2FAK | AVR (DST-100-2FAK) for 12 & 4 lead generators | Avr |
| O843K | Battery connections. | Battery connections |
| 080109067 | Drive Belt (M843JK) | Belt |
| 40-02003 | Drive Belt | Belt |
| 40-02005 | Drive Belt | Belt |
| 40-08601 | Drive Belt | Belt |
| 185416480 | Brush | Brush |
| 185416490 | Brush Assembly | Brush |
| 185416500 | Brush Holder Assembly | Brush |
| 22-68304 | Brush assembly | Brush |
| 39-70006 | Molded Plastic Case | Case |
| 27-38008 | SS Exhaust Elbow | Elbow |
| 00-32007 | Gas/Water Separator | Fuel filter |
| 130306190 | Fuel Filter Assembly | Fuel filter |
| 130336020 | Secondary fuel filter | Fuel filter |
| 24-50002 | Primary fuel filter (Racor) complete unit | Fuel filter |
| 24-50012 | Primary fuel filter element | Fuel filter |
| 24-50013 | Primary Fuel Filter/Separator | Fuel filter |
| 24-50014 | Fuel filter | Fuel filter |
| 24-52020 | Fuel Filter | Fuel filter |
| FF5114 | Fuel | Fuel filter |
| NL843NW3 | #24-52020 | Fuel filter |
| 052100280 | Gasket (Marine application only, formerly #054109013) | Gasket |
| 052109064 | Gasket | Gasket |
| 052109065 | Gasket | Gasket |
| 054109013 | Gasket | Gasket |
| 11-12005 | Oil Fill Neck Gasket | Gasket |
| 11-13101 | Gasket, Thermostat Cover | Gasket |
| 11-18602 | Gasket, Thermostat Cover | Gasket |
| 11-28101 | Gasket | Gasket |
| 11-31902 | Gasket | Gasket |
| 11-33101 | Exhaust Manifold Gasket | Gasket |
| 11-331101 | Gasket, Exhaust Manifold/ Expansion Tank | Gasket |
| 110996820 | Gasket, Oil Pan | Gasket |
| 111147491 | Head Gasket t=1.3 mm | Gasket |
| 111147501 | Head Gasket t=1.4 mm | Gasket |
| 111147991 | Head Gasket t = 1.5 | Gasket |
| 111996401 | Gasket, Head Cover | Gasket |
| 111996410 | Gasket, Rocker Arm Cover | Gasket |
| 111996420 | Gasket, Rocker Arm Cover | Gasket |
| 120996140 | Gasket, Rocker Arm Bracket | Gasket |
| 130326051 | Gasket | Gasket |
| 130516069 | Gasket | Gasket |
| 130516101 | Gasket | Gasket |
| 130996070 | Gasket | Gasket |
| 130996130 | Gasket | Gasket |
| 131296255 | Gasket | Gasket |
| 131426200 | Gasket | Gasket |
| 131426230 | Gasket | Gasket |
| 135996451 | Gasket | Gasket |
| 135996530 | Gasket | Gasket |
| 135996550 | Gasket | Gasket |
| 135996590 | Gasket, Exhaust Manifold | Gasket |
| 135996680 | Gasket | Gasket |
| 135996900 | Gasket | Gasket |
| 135996950 | Gasket, Air Intake Mounting | Gasket |
| 140546020 | Filter Joint | Gasket |
| 140996260 | Gasket | Gasket |
| 140996270 | Gasket, Valve Assembly | Gasket |
| 145546490 | Gasket | Gasket |
| 145996360 | Gasket | Gasket |
| 145996370 | Gasket | Gasket |
| 145996460 | Gasket | Gasket |
| 145996670 | Gasket | Gasket |
| 145996680 | Gasket | Gasket |
| 145996681 | Gasket, Coolant Pump Set Plate | Gasket |
| 165996351 | Gasket | Gasket |
| 165996361 | Gasket | Gasket |
| 165996510 | Gasket, Gear Case Cover | Gasket |
| 165996540 | Gasket, Front Plate | Gasket |
| 165996550 | Gasket, Timing Gear Case | Gasket |
| 165996610 | Gasket, Gear Case Cover | Gasket |
| 195906831 | Gasket Kit - NL only (includes keys #1 - 41) | Gasket |
| 29-03100 | Gasket Kit - Marine (includes all keys) | Gasket |
| 29-03102 | Gasket Kit (Marine, includes all keys) | Gasket |
| 314990030 | Gasket, Elbow | Gasket |
| 185366060 | Glow Plug, 12 Volt | Glow plug |
| 185366100 | Glow Plug, 24 Volt | Glow plug |
| 185366220 | Glow Plug, 12 Volt | Glow plug |
| 068115250 | Tube | Hose |
| 068209156 | Vent Hose | Hose |
| 135597150 | Hose | Hose |
| 135597720 | Hose | Hose |
| 140606710 | Drain Hose (Marine application only) | Hose |
| 145536051 | Hose | Hose |
| 145536600 | Hose, Radiator Inlet | Hose |
| 145536630 | Hose, Radiator Outlet | Hose |
| 18-12003 | Hose | Hose |
| 18-12006 | Hose 5/16" ID x 26" Polyvinyl | Hose |
| 18-13107 | Formed Hose | Hose |
| 18-13108 | Hose 3/4" ID x 18-1/2" | Hose |
| 18-13109 | Overflow Hose 5/16" ID x 25" | Hose |
| 18-15408 | Hose Assembly 1/4” ID x 15” | Hose |
| 18-22001 | Hose, Air Intake (Molded) | Hose |
| 18-22002 | Hose 1-3/4" ID x 2-1/4" | Hose |
| 18-23102 | Air Intake Hose | Hose |
| 18-51902 | Hose 1/4" ID x 15" push-on | Hose |
| 18-52205 | Hose 1/4"ID x 13" | Hose |
| 18-52207 | Hose 1/4" ID x 24" push-on | Hose |
| 18-53109 | Hose Assembly 1/4" ID x 15" with 90°, 5/16 JIC x 5/16 JIC | Hose |
| 18-53112 | Hose Assembly 1/4" ID x 15" 5/16 JIC Both Ends | Hose |
| 18-53114 | Hose Assembly 1/4" ID x 14-1/2" | Hose |
| 18-53115 | Hose Assembly 1/4" ID x 22" | Hose |
| 18-65008 | Hose Assembly 1/4" ID x 24" with 90°, 1/4 JIC x 1/4 JIC | Hose |
| 18-72004 | Oil Drain Hose | Hose |
| 27-12003 | Hose, 5/16" x 26" Polyurethane | Hose |
| 41-01013 | Hose, 5/16" ID | Hose |
| 25-11216 | Impeller | Impeller |
| 25-12009 | Impeller (includes key #15) | Impeller |
| 25-12060 | Impeller | Impeller |
| 131406360 | Injector Assembly | Injector |
| 131406480 | Injector Assembly | Injector |
| 131416170 | Nozzle | Injector |
| W673-2 | Manual | Manual |
| 140406310 | Suction Filter | Oil filter |
| 140516130 | Lube oil filter | Oil filter |
| 140517020 | Oil Filter Assembly | Oil filter |
| 24-02002 | Oil Filter | Oil filter |
| 24-03100 | Lube oil filter | Oil filter |
| 24-78400 | NL Oil Filter | Oil filter |
| LF3311 | Lube | Oil filter |
| NL843NW2 | Engine capacity with new oil filter is | Oil filter |
| 00-32000 | Water Lift Type Muffler | Service part / kit |
| 00-70083 | GROMMET, 1-1/8” ID x 1-7/8” OD PENETRATION PLATE | Service part / kit |
| 00-70146 | Grommet, siphon break | Service part / kit |
| 00-75714 | BOLTING ASSEMBLY, SHORT, STAINLESS STEEL | Service part / kit |
| 040106203 | Bearing | Service part / kit |
| 040126210 | Bearing | Service part / kit |
| 042309013 | Bearing | Service part / kit |
| 05-70001 | CORNER CASTING | Service part / kit |
| 05-72003 | BOLTING ASSEMBLY, LONG, STAINLESS STEEL | Service part / kit |
| 05-73127 | EXTRUSION, VERTICAL | Service part / kit |
| 05-73128 | EXTRUSION, HORIZONTAL, ENDS | Service part / kit |
| 05-73129 | EXTRUSION, HORIZONTAL, SIDES | Service part / kit |
| 05-73131 | RIGHT SIDE PANEL ASSEMBLY | Service part / kit |
| 05-73132 | LEFT SIDE PANEL ASSEMBLY | Service part / kit |
| 05-73133 | REAR PANEL ASSEMBLY | Service part / kit |
| 05-73134 | FRONT PANEL ASSEMBLY | Service part / kit |
| 05-73136 | TOP PANEL ASSEMBLY | Service part / kit |
| 05-78010 | Sound Enclosure Assembly Instructions | Service part / kit |
| 05-78022 | PENETRATION PANEL ASSEMBLY | Service part / kit |
| 05-78636 | JUNCTION BOX SUPPORT BRKT COVER ASSEMBLY | Service part / kit |
| 06-73105 | Service side forward panel assembly | Service part / kit |
| 06-73106 | Service side aft assembly | Service part / kit |
| 06-73111 | Junction box bridge cover assembly | Service part / kit |
| 06-73132 | Left side bottom valence assembly | Service part / kit |
| 06-73161 | Rear panel assembly | Service part / kit |
| 06-73162 | Right side bottom valence assembly | Service part / kit |
| 06-73163 | Non-service side panel assembly | Service part / kit |
| 06-73165 | Front bottom valence assembly | Service part / kit |
| 06-73167 | Front panel assembly | Service part / kit |
| 110666060 | Vent Filter | Service part / kit |
| 12-00000 | #10-32 MACHINE SCREW x 1/2” LONG, STAINLESS STEEL | Service part / kit |
| 12-00776 | M8 x 20 18-8, S/S hex head capscrew | Service part / kit |
| 120116160 | Tappet | Service part / kit |
| 120456222 | Push Rod | Service part / kit |
| 120456231 | Push Rod | Service part / kit |
| 130516084 | Diaphragm | Service part / kit |
| 135406230 | Muffler Element | Service part / kit |
| 14-00032 | #10-32 NYLOCK HEX NUT, STAINLESS STEEL | Service part / kit |
| 140036220 | Relief Valve Assembly | Service part / kit |
| 15-00705 | M8 lock washer, S/S | Service part / kit |
| 15-11000 | M8 flat washer, S/S | Service part / kit |
| 15-70002 | #10 FLATWASHER, USS STAINLESS STEEL | Service part / kit |
| 185206084 | Solenoid, 12 Volt Standard Ground | Service part / kit |
| 185206192 | Solenoid, 12 Volt Isolated Ground | Service part / kit |
| 185206202 | Solenoid, 24 Volt Isolated Ground | Service part / kit |
| 185446218 | Stator, complete | Service part / kit |
| 185446272 | Bearing | Service part / kit |
| 185446274 | Bearing | Service part / kit |
| 185446276 | Rectifier Assembly | Service part / kit |
| 185816340 | Solenoid | Service part / kit |
| 198466060 | Plug | Service part / kit |
| 198486770 | Bushing | Service part / kit |
| 198517191 | Bush; S.T.D. (formerly #198517190) | Service part / kit |
| 198517195 | Bush; U.S. 0.25 (formerly #198517194) | Service part / kit |
| 198517198 | Bush; U.S. 0.50 (formerly #198517197) | Service part / kit |
| 198517221 | Bush; S.T.D. (formerly #198517220) | Service part / kit |
| 198517225 | Bush; U.S. 0.25 (formerly #198517224) | Service part / kit |
| 198517228 | Bush; U.S. 0.50 (formerly #198517227) | Service part / kit |
| 198736050 | Drain Cock | Service part / kit |
| 20-12002 | Heat Exchanger Element | Service part / kit |
| 21-12008 | Filler Cap | Service part / kit |
| 21-12013 | Filler Cap | Service part / kit |
| 22-42047 | Relay, 12 Volt SPDT | Service part / kit |
| 22-70250 | Circuit Breaker 50A 240VAC | Service part / kit |
| 22-70260 | Circuit Breaker 60A 240VAC | Service part / kit |
| 22-70300 | Circuit Breaker 100A 240VAC | Service part / kit |
| 22-72026 | Kit, harness addition | Service part / kit |
| 23-78003 | REAR PANEL RETAINING BRACKET | Service part / kit |
| 23-78007 | TOE BRACKET | Service part / kit |
| 23-78016 | NYLON KEEPER BLOCKS | Service part / kit |
| 25-12004 | Repair Kit | Service part / kit |
| 25-12062 | Wear Plate | Service part / kit |
| 25-12064 | Bearing | Service part / kit |
| 27-18301 | Siphon Break | Service part / kit |
| 27-31213 | Dry Exhaust - Critical Residential | Service part / kit |
| 27-31904 | Dry Exhaust Flex | Service part / kit |
| 27-32014 | SS Exhaust Elbow | Service part / kit |
| 27-33110 | KIT, WET EXHAUST OUTLET TUBE | Service part / kit |
| 31-70001 | Adapter, Oil Drain | Service part / kit |
| 340460170 | RW Pump Drive Gear | Service part / kit |
| 36-72003 | Drain Valve | Service part / kit |
| 37-41003 | 24 Volt Bulb (not shown) | Service part / kit |
| 37-41004 | 12 Volt Bulb (not shown) | Service part / kit |
| 38-08420 | Standard Spare Parts Kit - HE | Service part / kit |
| 38-08426 | World Class Spare Parts Kit - HE | Service part / kit |
| 38-08430 | Standard Spare Parts Kit - KC | Service part / kit |
| 38-08436 | World Class Spare Parts Kit - HE (KC series row as printed) | Service part / kit |
| 38-08607 | Heat Exchanged Kit #38-08607 | Service part / kit |
| 55-73138 | PLUG, BASE PAN MOUNTING FOOT POCKET | Service part / kit |
| 55-78066 | SOUND FOAM, PENETRATION PLATE OPTION | Service part / kit |
| 130506140 | Feed Pump Assembly | Pump |
| 131017590 | Injection Pump Assembly | Pump |
| 131017591 | Injection Pump Assembly | Pump |
| 145017350 | Coolant Pump Assembly | Pump |
| 145017780 | Coolant Pump Assembly (includes keys #2 - 5) | Pump |
| 145017800 | Coolant Pump Assembly (includes keys #2 - 5) | Pump |
| 25-12057 | Raw Water Pump | Pump |
| 26-71003 | Electric Fuel Pump 12V | Pump |
| 26-71004 | Electric Fuel Pump 24V | Pump |
| 340460141 | RW Pump Drive Gear | Pump |
| 36-72002 | Hand Pump | Pump |
| 025100008 | Seal Washer, Air Bleed Screw | Seal |
| 025100012 | Seal Washer - Industrial | Seal |
| 025100016 | Seal Washer | Seal |
| 052100100 | O-Ring | Seal |
| 052100120 | O-ring | Seal |
| 052100150 | O-Ring | Seal |
| 052100400 | O-ring | Seal |
| 052109076 | O-ring | Seal |
| 052109078 | O-ring, Relief Valve | Seal |
| 052109108 | O-ring, Governor Shaft | Seal |
| 052109110 | O-ring | Seal |
| 052109113 | O-ring | Seal |
| 052300400 | O-ring | Seal |
| 052300700 | O-ring, Gear Case Cover | Seal |
| 052400400 | O-Ring | Seal |
| 06-73110 | Seal bar assembly | Seal |
| 120406050 | Valve Guide Seal - Exhaust | Seal |
| 120406070 | Valve Guide Seal - Intake | Seal |
| 131226180 | O-ring | Seal |
| 16-13101 | O-ring | Seal |
| 16-70001 | O-ring | Seal |
| 16-90001 | O-ring | Seal |
| 198636160 | Oil Seal, Front | Seal |
| 198636170 | Oil Seal | Seal |
| 25-12017 | Spline Seal | Seal |
| 25-12031 | O-Ring | Seal |
| 25-12065 | Lip Seal | Seal |
| 25-12066 | Mechanical Seal | Seal |
| 25-12067 | O-Ring | Seal |
| 55-73174 | Sound foam, snorkel receiver seal | Seal |
| 185246011 | Oil pressure unit | Sensor |
| 22-10003 | Coolant Level Switch Gauge, Isolated Ground | Sensor |
| 22-40236 | Oil Pressure Switch | Sensor |
| 22-40358 | Temperature Switch 95°C | Sensor |
| 22-41016 | Oil Pressure Sender | Sensor |
| 22-42014 | Switch, High Exhaust Temperature 205°F | Sensor |
| 22-42055 | Sender, Water Temperature - Single Station | Sensor |
| 22-42070 | Switch, High Exhaust Temperature & Harness Assembly | Sensor |
| 22-42803 | Oil Pressure Sender | Sensor |
| 22-44810 | Sender, Water Temperature - Single Station | Sensor |
| 22-72010 | Overspeed Switch | Sensor |
| 37-12005 | Low water level switch | Sensor |
| 37-78405 | Low oil level switch | Sensor |
| 385720110 | Temperature Switch 95°C | Sensor |
| 385720230 | PERKINS WATER TEMPERATURE SENSOR | Sensor |
| 185086551 | Starter 12 Volt | Starter |
| 22-42079 | Starter, 12 Volt Isolated Ground | Starter |
| 22-42081 | Starter, 24 Volt Standard Ground | Starter |
| 22-42082 | Starter, 24 Volt Isolated Ground | Starter |
| 145206022 | Thermostat | Thermostat |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.