Northern Lights NL844W3 Parts Manual

P844-3

For Models: L844D, M844W3,

M844LW3, NL844W3,

NL844LW3, and M20CRW3

PARTS CATALOG

Marine Generators | Marine Diesel Engines | Land-Based Generators

— CALIFORNIA —

Proposition 65 Warning:

Diesel engine exhaust and some of its constitu-

ents are known to the State of California to cause

cancer, birth defects, and other reproductive harm.

Northern Lights

4420 14th Avenue N.W. Seattle, WA 98107 Tel: (206) 789-3880 Fax: (206) 782-5455

Printed in U.S.A. PART NO.: P844-3 04/08

PARTS CATALOG

for Models L844D, M844w3, M844lw3,

NL844w3, NL844lw3, and M20crw3

Please read thoroughly before aempting to use this manual:

Table of Contents ........................................................................................................................................... 1

Model Designation & Serial Numbers .............................................................................................................. 2

Reading a Parts Page ...................................................................................................................................... 3

Table of Contents

GROUP 1 - ENGINE

Cylinder Block Assembly ..........................0 - 3

Crankshaft Assembly ................................ 4 - 7

Camshaft & Oil Pump .................................... 8

Cylinder Head ........................................ 9 - 11

Rocker Arm Cover & Assembly ............. 12 - 13

GROUP 2 - INTAKE & EXHAUST SYSTEM

Air Filter & Housing ................................. 0 - 1

Air Intake & Filter ......................................... 2

Air Filter & Mounting - Industrial ................... 3

Exhaust Manifold & Mufer - Industrial .......... 4

GROUP 3 - COOLING

Heat Exchanger & Exhaust Manifold ......... 0 - 1

Expansion Tank KC & Exhaust Manifold ... 2 - 3

Coolant Pump ..........................................4 - 6

Raw Water Pump & Mounting ........................ 7

Raw Water Pump Assembly ............................ 8

Radiator & Guard ................................. 10 - 11

GROUP 4 - FUEL SYSTEM

General Arrangement ............................... 0 - 7

Governor & Timing Gear Case .................. 8 - 9

Fuel Filter & Piping ............................. 10 - 11

Fuel Line Connection ...........................12 - 13

Fuel Injector ................................................ 14

Fuel Feed Pump .......................................... 15

Throttle Assembly ....................................... 16

GROUP 5 - ELECTRICAL SYSTEM

12 & 24 Volt Engine ............................... 0 - 13

Starter Mounting & Flywheel Housing ...14 - 15

Relay Board & Circuit Breaker ..................... 16

Starting Motor Assembly .............................. 17

Alternator & Mounting ......................... 18 - 20

Control Panels ...................................... 21 - 26

Belt Guard Assembly ............................ 27 - 28

GROUP 6 - GASKET SETS

Gasket Sets ....................................................1 - 2

GROUP 7 - GEAR AND ADAPTER SETS

Gear Attaching Parts .....................................0 - 1

GROUP 8 - FRAME & MOUNTING

Front Engine Mounting ...................................... 0

Base Frame Assemblies ............................. 1 - 3

GROUP 9 - ACCESSORIES

GROUP 9 - & OPTIONAL EQUIPMENT

PTO ............................................................. 0

Electric Clutch .............................................. 1

Oil Drain Kits .......................................... 2 - 3

Coolant Recovery Tank .................................. 4

Remote Expansion Tank ................................. 5

Low Water Level Switch ................................ 6

Low Coolant Level Switch ............................. 7

Proprietary Information

This publication is the sole property of Alaska Diesel Electric, Inc.

It may not be reproduced in whole or part without the expressed written permission of Alaska Diesel Electric, Inc.

P844-3 04/08

1

MODEL DESIGNATION

MODELS INCLUDED

This manual covers the operating instructions for:

L844D, M844W3, M844LW3, M20CRW3, NL844W3, and NL844LW3.

Model Numbers

Model numbers give the unit's application, block model, aspiration, and RPM:

L - M - NL 844 L W

L - Lugger Propulsion engine M - Northern Lights Marine generator set NL - Northern Lights Industrial generator set

Lugger Propulsion engine with an 844 base

L 844D

M 844W3

M 844LW3

=

engine, Tier III.

Northern Lights marine diesel generator set

=

with an 844 engine and a generator with a special winding, Tier III.

Northern Lights marine diesel generator with

=

an 844 engine, long stroke, special winding generator,Tier III.

Model number of engine block Bore Cylinders 84 mm 4

M 20CRW3

NL 844LW3

Designates a

Long Stroke

engine.

Northern Lights 20 kW commercial grade

=

marine diesel generator with a generator with a special winding, Tier III.

Northern Lights industrial diesel generator set

=

with an 844L engine and a radiator, Tier III.

Designates a

winding in

the generator.

Serial Numbers

Your set has three serial numbers: 1 an engine number stamped on the block, 2 a generator plate and, 3 a generator set plate. Use the serial number on the generator set plate when ordering parts or in correspondence. The generator set plate is found on the service side of the generator and resembles the drawings below.

P844-3 04/08

2

READING A PARTS PAGE

IMPORTANT:

Before selecting parts, be sure that you are choosing parts from the correct page.

Check the model designation at the page top.

Do not use this illustration for parts purchasing.

1

ELECTRICAL SYSTEM

ALTERNATOR ASSEMBLY: M - NL844

4

6

5

KEY PART NUMBER QTY. DESCRIPTION SERIALNUMBER

0 185046210 1 Alternator Assembly 1 185446219 1 Flywheel, complete 2 185446217 1 Plate, complete 3 185716200 1 Plate 4 185446218 1 Stator, complete 5 040126210 2 Bearing 6 020210010 1 Nut 7 027100010 1 Spring washer 8 026100010 1 Washer 9 185446220 1 Clamp 10 015140408 1 Screw 11 015140425 2 Screw 12 199236510 1 Collar -

7 8

10

3

2

9

13

P844 06/96

5-2

14

1211

REFERENCES:

1. Grouping section title. 7. Quantity of parts used.

2. Model designation of equipment that uses parts 8. Description of each component part.

listed on this page. 9. Serial number of unit the part ts.

3. Title and description of assembly. 10. Assembly or kit designated by Key 0 or ••/•.

4. Drawing numbers that correspond to key 11. Grouping index number.

column numbers for parts identication. 12. Page number within the grouping index.

5. Key column for locating parts shown on drawing. 13. Manual title.

6. Part number. 14. Page publication date.

NOTE: a Arrows always point toward the front of the engine.

P844-3 04/08

3

GROUP 1 – ENGINE

Cylinder Block Assembly 844

Marine Application Only

Industrial Application Only

844cylblock

P844-3 04/08

1 - 0

GROUP 1 – ENGINE

Cylinder Block Assembly 844

KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER

1 110101480 1 Cylinder Block Assembly - Marine (includes keys #2-22) -

110101470 1 Cylinder Block Assembly - Industrial 3 064210025 2 Expansion Plug 25 mm 4 064210040 5 Expansion Plug 40 mm 5 198466010 3 Plug 6 198466020 2 Plug 8 198466030 4 Plug 9 165296220 1 Idle Gear Shaft Assembly 10 198466020 2 Plug 11 198517222 1 Bush; Standard 198517226 1 Bush; Undersize 0.25 mm 198517229 1 Bush; Undersize 0.50 mm 12 040106203 1 Bearing 13 064100045 1 Expansion Plug, 45 mm 14 042309018 1 Needle Bearing 15 042309017 1 Needle Bearing 16 030500612 2 Dowel Pin 17 030500616 2 Dowel Pin 18 030501025 2 Dowel Pin 19 030309005 2 Spring Pin 20 012110820 3 Stud M8 x 1.25 x 20 mm 21 012110635 1 Stud M6 x 1.0 x 35 mm 22 012110660 1 Stud M6 x 1.0 x 60 mm 23 110996860 1 Gasket 24 198636170 1 Oil Seal 00-02004 ** Wear Sleeve; Repair Type 25 198736050 1 Drain Cock 26 140546020 1 Filter Joint 27 24-03100 1 Oil Filter 28 120116160 8 Tappet 29 120456250 8 Push Rod 30 140036220 1 Relief Valve Assembly 31 052109078 1 O-ring 32 068105250 1 Tube 33 198486770 1 Bushing 34 110707731 1 Oil Pan - Marine 110707751 1 Oil Pan - Industrial 35 010109235 30 Bolt 36 110756070 1 Dipstick Tube 37 052109113 2 O-ring 38 011310612 1 Bolt 39 198416320 1 Dipstick 40 052109076 1 O-ring 41 140986630 1 Oil Pipe 42 140406360 1 Suction Filter 43 011310612 2 Bolt 44 18-72004 1 Drain Hose 47 21-00003 1 Cap 48 025100012 2 Seal Washer - Industrial 49 010411212 2 Plug M12 x 1.25 - Industrial -

* -

(includes keys #2-22) -

*Marine Application Only **As required

P844-3 04/08

1 - 1

GROUP 1 – ENGINE

Cylinder Block Assembly 844L, M20CRW

Marine Application Only

Industrial Application Only

844cylblock

P844-3 04/08

1 - 2

GROUP 1 – ENGINE

Cylinder Block Assembly 844L, M20CRW

KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER

1 110101300 1 Cylinder Block Assembly - Marine (includes keys #2-22) -

110101320 1 Cylinder Block Assembly - Industrial 110101460 1 Cylinder Block Assembly - Commercial 3 064210025 2 Expansion Plug 25 mm 4 064210040 5 Expansion Plug 40 mm 5 198466010 3 Plug 6 198466020 2 Plug 8 198466030 4 Plug 9 165296220 1 Idle Gear Shaft Assembly 10 198466920 2 Plug - Marine & Industrial 198466020 2 Plug - Commercial 11 198517222 1 Bush; Standard 198517226 1 Bush; Undersize 0.25 mm 198517229 1 Bush; Undersize 0.50 mm 12 040106203 1 Bearing 13 064100045 1 Expansion Plug 14 042309018 1 Needle Bearing 15 042309017 1 Needle Bearing 16 030500612 2 Dowel Pin 17 030500616 2 Dowel Pin 18 030501025 2 Dowel Pin 19 030309005 2 Spring Pin 20 012110820 3 Stud M8 x 1.25 x 20 mm 21 012110635 1 Stud M6 x 1.0 x 35 mm 22 012110660 1 Stud M6 x 1.0 x 60 mm 23 110996860 1 Gasket 24 050209083 1 Oil Seal - Marine & Industrial 198636170 1 Oil Seal - Commercial 00-02004 ** Wear Sleeve; Repair Type 25 198736050 1 Drain Cock 26 140546020 1 Filter Joint 27 24-03100 1 Oil Filter 28 120116160 8 Tappet 29 120456310 8 Push Rod 30 140036220 1 Relief Valve Assembly 31 052109078 1 O-ring 32 068105250 1 Tube 33 198486770 1 Bushing 34 110707731 1 Oil Pan - Marine & Commercial 110707751 1 Oil Pan - Industrial 35 010109235 30 Bolt 36 110756070 1 Dipstick Tube 37 052109113 2 O-ring 38 011310612 1 Bolt 39 198416320 1 Dipstick 40 052109076 1 O-ring 41 140986630 1 Oil Pipe 42 140406360 1 Suction Filter 43 011310612 2 Bolt 44 140607330 1 Drain Hose 47 398430620 1 Cap 48 025100012 2 Seal Washer - Industrial 49 010411212 2 Plug M12 x 1.25 - Industrial -

* -

(includes keys #2-22) -

*Marine & Commercial Applications Only **As required

P844-3 04/08

1 - 3

GROUP 1 – ENGINE

Crankshaft Assembly 844

P844-3 04/08

1 - 4

844crankshaft

GROUP 1 – ENGINE

Crankshaft Assembly 844

KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER

1 115256630 1 Crankshaft Assembly (includes keys #2 - 5) -

2 115276200 1 Gear 3 034100508 1 Key 4 030509020 1 Dowel Pin 6 110156250 1 Bearing Holder Assembly 7 010109406 8 Bolt 8 030500612 8 Dowel Pin 9 110156171 1 Bearing Holder Assembly 10 110156181 1 Bearing Holder Assembly 11 110156191 1 Bearing Holder Assembly 12 198517232 4 Bearing; Standard 198517236 4 Bearing; Undersize 0.25 mm 198517239 4 Bearing; Undersize 0.50 mm 13 198517242 4 Bearing; Standard 198517246 4 Bearing; Undersize 0.25 mm 198517249 4 Bearing; Undersize 0.50 mm 14 199266200 2 Thrust Washer 15 011511075 3 Bolt 16 010700865 2 Bolt 17 115107970 4 Ring Kit; Standard 18 115017541 4 Piston Kit; Standard 19 115326220 4 Piston Pin 20 036500028 8 Snap Ring 21 115026251 4 Connecting Rod Assembly 22 198517265 4 Bushing 23 115176140 8 Connecting Rod Bolt 24 020109120 8 Nut 25 198517252 8 Bearing; Standard 198517256 8 Bearing; Undersize 0.25 mm 198517259 8 Bearing; Undersize 0.50 mm 26 199266210 1 Thrust Washer 27 115397620 1 Pulley (Marine) 115396870 1 Pulley (Industrial) 28 020109086 1 Nut 29 115357050 1 Flywheel Assembly 30 115376040 1 Ring Gear

(109 Teeth) -

31 010109341 6 Bolt 32 40-02003 1 Drive Belt 40-02005 1 Drive Belt

(with 12V/ 35A alternator) - (with 12V/ 51A , 24V/ 35A, and 24V/ 40A alternators) -

(includes keys #7 - 8) -

(includes keys #7 - 8) - (includes keys #7 - 8) - (includes keys #7 - 8) -

(includes keys #22 - 24) -

(includes key #30) SAE #7-1/2 -

P844-3 04/08

1 - 5

GROUP 1 – ENGINE

Crankshaft Assembly 844L & M20CRW3

P844-3 04/08

1 - 6

844crankshaft

GROUP 1 – ENGINE

Crankshaft Assembly 844L & M20CRW3

KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER

1 115256750 1 Crankshaft Assembly (includes keys #2 - 4) -

2 115276200 1 Gear 3 034100508 1 Key 4 030509020 1 Dowel Pin 6 110156360 1 Bearing Holder Assembly 7 010109406 8 Bolt 8 030500612 8 Dowel Pin 9 110156370 1 Bearing Holder Assembly 10 110156380 1 Bearing Holder Assembly 11 110156390 1 Bearing Holder Assembly 12 198517232 4 Bearing; Standard 198517236 4 Bearing; Undersize 0.25 mm 198517239 4 Bearing; Undersize 0.50 mm 13 198517242 4 Bearing; Standard 198517246 4 Bearing; Undersize 0.25 mm 198517249 4 Bearing; Undersize 0.50 mm 14 199266200 2 Thrust Washer 15 011511075 3 Bolt 010109667 3 Bolt 16 010700860 2 Bolt 17 115107970 4 Ring Kit; Standard 18 115017491 4 Piston Kit; Standard 19 115326220 4 Piston Pin 20 036500028 8 Snap Ring 21 115026330 4 Connecting Rod Assembly 22 198517265 4 Bushing 23 115176140 8 Connecting Rod Bolt 24 020109120 8 Nut 25 198517252 8 Bearing; Standard 198517256 8 Bearing; Undersize 0.25 mm 198517259 8 Bearing; Undersize 0.50 mm 26 199266210 1 Thrust Washer 27 115397620 1 Pulley (Marine) 115396870 1 Pulley (Industrial) 115396860 1 Pulley (Commercial) 28 020109086 1 Nut 29 115357470 1 Flywheel Assembly 30 115376160 1 Ring Gear

(126 Teeth) -

31 010109341 6 Bolt 32 40-08401 1 Drive Belt 40-08404 1 Drive Belt

(with 12V/ 35A alternator) - (with 12V/ 51A, 24V/ 35A, and 24V/ 40A alternators) -

(includes keys #7 - 8) -

(includes keys #7 - 8) - (includes keys #7 - 8) - (includes keys #7 - 8) -

(includes key #17) -

(includes keys #22 - 24) -

(includes key #30) SAE #7-1/2 -

P844-3 04/08

1 - 7

GROUP 1 – ENGINE

Camshaft & Oil Pump

camshaft844

KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER

1 120026320 1 Camshaft Assembly (includes keys #2 - 6) -

2 120016050 1 Cam Gear 3 034100508 1 Key 4 120736081 1 Gear 5 199216230 3 Spacer 6 040109057 1 Bearing 7 125256120 1 Slider 8 199566750 1 Plate 9 011310612 2 Bolt 10 165026230 1 Idler Gear Assembly 11 199266270 1 Thrust Washer 12 198217760 1 Spring 13 140166250 1 Rotor - 14 140116220 1 Oil Pump Cover 15 199286150 1 Shim, t=0.10 199286160 1 Shim, t=0.15 199286170 1 Shim, t=0.20 199286180 1 Shim, t=0.50 16 198216720 1 Spring 17 199236540 1 Collar 18 036800010 1 Snap Ring 19 165166640 1 Front Plate (844 & 844L Marine & Propulsion) 165166630 1 Front Plate (844 & 844L Industrial) 165166650 1 Front Plate (844L Commercial) 20 165996540 1 Gasket 21 011310612 2 Bolt -

(includes key #12) -

P844-3 04/08

1 - 8

GROUP 1 – ENGINE

Cylinder Head 844

cylhead844

KEY PART NUMBER QTY DESCRIPTION SERIAL #

1 111011430 1 Cylinder Head Assembly (Marine & Propulsion, includes keys #2 -12, & 20) -

111011420 1 Cylinder Head Assembly

(Industrial, includes keys #2-12, & 20) -

2 064210018 7 Expansion Plug, 18 mm 3 064210030 2 Expansion Plug, 30 mm 4 064210025 6 Expansion Plug, 25 mm 5 064210010 3 Expansion Plug, 10 mm 6 120166350 4 Intake Valve 7 120176360 4 Exhaust Valve 8 120406070 4 Valve Guide Seal - Intake 9 198216700 8 Spring 10 120186080 8 Retainer 11 120226070 16 Keeper 12 120406050 4 Valve Guide Seal - Exhaust 13 120216041 8 Cap 14 199236680 1 Spacer

(Marine) -

15 111147510 1 Head Gasket; t = 1.2 mm 111147520 1 Head Gasket; t = 1.3 mm 16 111136480 14 Head Bolt 17 111136490 4 Head Bolt 18 195816340 2 Lifting Eye 195816030 1 Lifting Eye

(Marine & Propulsion) - (Industrial)

19 011510816 1 Bolt 20 110136400 4 Valve Seat, Intake 21 011510830 1 Bolt

(Marine & Propulsion) -

P844-3 04/08

1 - 9

GROUP 1 – ENGINE

Cylinder Head 844L

cylhead844L

KEY PART NUMBER QTY DESCRIPTION SERIAL #

1 111011270 1 Cylinder Head Assembly (Marine, includes keys #2 -12, 20, & 22) -

111011290 1 Cylinder Head Assembly

(Industrial, includes keys #2-12, 20, & 22) -

2 064210018 7 Expansion Plug, 18 mm 3 064210030 2 Expansion Plug, 30 mm 4 064210025 6 Expansion Plug, 25 mm 5 064210010 3 Expansion Plug, 10 mm 6 120166350 4 Intake Valve 7 120176360 4 Exhaust Valve 8 120406070 4 Valve Guide Seal - Intake 9 198216700 8 Spring 10 120186080 8 Retainer 11 120226070 16 Keeper 12 120406050 4 Valve Guide Seal - Exhaust 13 120216041 8 Cap 14 199236680 1 Spacer

(Marine) -

15 111147751 1 Head Gasket; t = 1.1 mm 111147761 1 Head Gasket; t = 1.2 mm 111147771 1 Head Gasket; t = 1.3 mm 16 111136480 14 Head Bolt 17 111136490 4 Head Bolt 18 195816340 2 Lifting Eye 195816030 1 Lifting Eye

(Marine) - (Industrial)

19 011510816 1 Bolt 20 110136400 4 Valve Seat, Intake 21 011510830 1 Bolt

(Marine) -

22 110136435 4 Valve Seat, Exhaust -

P844-3 04/08

1 - 10

GROUP 1 – ENGINE

Cylinder Head M20CRW3

cylhead844L

KEY PART NUMBER QTY DESCRIPTION SERIAL #

1 111011520 1 Cylinder Head Assembly (Marine, includes keys #2 -12, 20, & 22) -

2 064210018 7 Expansion Plug, 18 mm 3 064210030 2 Expansion Plug, 30 mm 4 064210025 6 Expansion Plug, 25 mm 5 064210010 3 Expansion Plug, 10 mm 6 120166350 4 Intake Valve 7 120176360 4 Exhaust Valve 8 120406070 4 Valve Guide Seal - Intake 9 198216700 8 Spring 10 120186080 8 Retainer 11 120226070 16 Keeper 12 120406050 4 Valve Guide Seal - Exhaust 13 120216041 8 Cap 15 111147751 1 Head Gasket; t = 1.1 mm 111147761 1 Head Gasket; t = 1.2 mm 111147771 1 Head Gasket; t = 1.3 mm 16 111136480 14 Head Bolt 17 111136490 4 Head Bolt 18 195816200 2 Lifting Eye 19 011510816 1 Bolt 20 110136400 4 Valve Seat, Intake 22 110136435 4 Valve Seat, Exhaust -

P844-3 04/08

1 - 11

GROUP 1 – ENGINE

Rocker Arm Assembly

rockerarmcover844

KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER

1 120036950 1 Rocker Arm Assembly (Marine & Propulsion, includes keys 2-7, 16, & 17) -

120036960 1 Rocker Arm Assembly 120036830 1 Rocker Arm Assembly

(Industrial, includes keys 2-7, 16, &17) - (Commercial, includes keys 2-7, 16, & 17)

2 120356131 4 Rocker Arm - Intake 3 120356141 4 Rocker Arm - Exhaust 4 199486220 8 Screw 5 020109076 8 Nut 6 120316201 1 Rocker Arm Shaft 7 198217170 3 Spring 8 011310635 2 Bolt 9 012109044 4 Stud Bolt 10 023100010 4 Nut 11 1 Oil Pressure Switch 12 140606720 1 Oil Pipe 140607020 1 Oil Pipe

(844) - (844L & M20CRW3) -

(see Electrical) -

13 140996260 4 Gasket 14 198486780 1 Banjo Bolt 15 120996130 1 Gasket 16 052109076 1 O-ring 17 199280300 6 Shim 18 198487590 1 Banjo Bolt

(tapped 1/8 NPT) -

P844-3 04/08

1 - 12

GROUP 1 – ENGINE

Rocker Arm Cover

rockercover844

KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER

1 111217650 1 Rocker Arm Cover (844- 844L Marine & Propulsion) -

111217710 1 Rocker Arm Cover 111217620 1 Rocker Arm Cover

(844 - 844L Industrial) - (844L Commericial) -

2 111996401 1 Gasket -

 3 110666210 1 Bafe -

4 110666060 1 Breather Element 5 015600406 6 Screw 6 140996270 4 Gasket 7 024600010 4 Cap Nut 8 198436010 1 Cap 9 052100400 1 O-ring 10 110566080 1 Valve, Breather 11 011100408 4 Bolt 12 011310660 3 Bolt 13 011310640 2 Bolt -

P844-3 04/08

1 - 13

GROUP 2 – INTAKE & EXHAUST SYSTEM

Air Filter and Housing

L844

A-10547 / C-5534

KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER

1 10-28104 1 Connector, Air Inlet -

2 135996950 1 Gasket, Air Intake Mounting 3 12-01131 2 Capscrew, Hex Head M6 x 1.0 x 20 mm 4 15-99131 2 Wave Washer M6 S/S 5 18-22002 1 Hose 1-3/4" ID x 2-1/4" 6 19-01028 2 Hose Clamp #28 7 10-28106 1 Front Cover, Air Filter Housing 8 28-28103 1 Plate, Housing Separater 9 24-28102 1 Element, Air Filter 10 24-28103 1 Screen, Air Filter Retaining 11 10-28103 1 Rear Cover, Air Filter Housing 12 12-09132 4 Capscrew, Hex Head M6 x 1.0 x 85 mm S/S 13 15-99131 4 Wave Washer M6 S/S 14 23-22001 1 Bracket, Air Filter Support 15 12-09751 4 Capscrew, Hex Head M8 x 1.25 x 16 mm S/S 16 15-99707 4 Wave Washer M8 S/S 17 18-28103 1 Hose, Air Intake 18 19-01028 1 Hose Clamp #28 Extended Band S/S -

P844-3 04/08

2 - 0

GROUP 2 – INTAKE & EXHAUST SYSTEM

Air Filter and Housing

M844 & M844L

A-10262, A-10312 / C-5444

KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER

1 10-22004 1 Connector, Air Inlet -

2 135996950 1 Gasket, Air Intake Mounting 3 12-01131 2 Capscrew, Hex Head M6 x 1.0 x 20 mm 4 15-99131 2 Wave Washer M6 S/S 5 18-22002 1 Hose 1-3/4" ID x 2-1/4" 6 19-01028 2 Hose Clamp #28 7 10-22006 1 Front Cover, Air Filter Housing -

 8 28-22001 1 Plate,AirFilterBafe

9 24-22009 1 Element, Air Filter 10 24-22011 1 Screen, Air Filter Retaining 11 10-22003 1 Rear Cover, Air Filter Housing 12 12-09132 4 Capscrew, Hex Head M6 x 1.0 x 85 mm S/S 13 15-99131 4 Wave Washer M6 S/S 14 23-22001 1 Bracket, Air Filter Support 15 12-09751 4 Capscrew, Hex Head M8 x 1.25 x 16 mm S/S 16 15-99707 4 Wave Washer M8 S/S 17 18-22001 1 Hose, Air Intake (Molded) 18 19-01028 1 Hose Clamp #28 19 19-70028 1 Cushion Clamp #28 20 12-01102 1 Capscrew, Hex Head M6 x 1.0 x 16 mm S/S 21 15-01134 1 Flat Washer, M6 S/S -

(844) -

P844-3 04/08

2 - 1

GROUP 2 – INTAKE & EXHAUST SYSTEM

Air Intake & Filter M20CRW3, NL844, & NL844L

844K2airintake

KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER

1 135566550 1 Intake Manifold (NL844, NL844L) -

135566470 1 Intake Manifold

(M20CRW3) -

2 135996950 1 Gasket 3 011310620 2 Bolt 4 24-28401 1 Air Filter

(M20CRW3) -

5 19-00036 1 Hose Clamp -

P844-3 04/08

2 - 2

GROUP 2 – INTAKE & EXHAUST SYSTEM

Air Filter & Mounting NL844 & 844L

844aircleaner

KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER

1 135016300 1 Air Cleaner Assembly (includes keys #13-16) -

2 19-00036 2 Hose Clamp #36 3 135597830 1 Hose 4 135976600 1 Bracket 5 135976420 1 Bracket 6 195816100 1 Lifting Eye 7 011510820 2 Bolt 8 011510816 4 Bolt 9 011510825 1 Bolt 10 026100008 3 Washer 11 011510825 2 Bolt 12 011510820 1 Bolt 13 135326197 1 Housing 14 24-27302 1 Element 15 135326199 1 Cover Assembly 16 314531163 1 Valve -

P844-3 04/08

2 - 3

GROUP 2 – INTAKE & EXHAUST SYSTEM

Exhaust Manifold & Mufer

Industrial

KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER

•• 135046320 1 MuferAssembly(includes keys #1- 4) -

1 135617500 1 Exhaust Manifold -

 2 135406230 1 MuferElement -

3 135996900 1 Gasket 4 011300612 10 Capscrew, Hex Head with Washer M6 x 1.0 x 12 mm 5 135656140 1 Exhaust Pipe 6 135996550 1 Gasket 7 011310625 3 Capscrew, Hex Head with Washer M6 x 1.0 x 25 mm 8 12-00056 2 Capscrew, Socket Head M8 x 1.25 x 25 9 135996780 1 Gasket 10 12-34801 ** Capscrew, Hex Head M8 x 1.25 x 70 mm 11 012100875 ** Stud M8 x 1.25 x 75 mm 12 15-00704 2 Lock Washer, Hi-Collar M8 13 14-00711 ** Hex Nut M8 x 1.25 14 27-33103 1 Exhaust Elbow 1-1/2 NPT, Female 135606340 1 Exhaust Elbow, Plain 15 314410020 1 Clamp 16 15-00701 2 Flat Washer M8 17 15-00702 1 Lock Washer M8 18 14-00711 1 Hex Nut M8 x 1.25 19 12-00718 1 Capscrew, Hex Head M8 x 1.25 x 65 mm -

**As required

P844-3 04/08

2 - 4

GROUP 2 – INTAKE & EXHAUST SYSTEM

Notes

P844-3 04/08

2 - 5

GROUP 3 – COOLING SYSTEM

Heat Exchanger & Exhaust Manifold

P844-3 04/08

3 - 0

A-6256, A-6509 / D-2415

GROUP 3 – COOLING SYSTEM

Heat Exchanger & Exhaust Manifold

KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER

1 10-38101 1 Exhaust Manifold/Expansion Tank -

2 20-18101 1 Heat Exchanger Element 3 27-32003 1 Wet Exhaust Elbow 135616233 1 Wet Exhaust Elbow 4 145536370 2 End Cap 5 28-13101 1 Cover Plate 6 21-12007 1 Filler Cap 7 145206022 1 Thermostat

(7 PSI) -

(82° C) -

8 11-38101 1 Gasket 9 11-31902 1 Gasket

(can use #314990030) -

10 00-13101 1 Spring 11 00-71001 1 Nameplate, “Northern Lights” 00-71000 1 Nameplate, "Lugger" 12 18-13107 1 Hose 13 18-13108 1 Hose 3/4" ID x 18-1/2" 14 18-13109 1 Hose 5/16" ID x 25" 15 21-13102 1 Union 3/4 Hose Barb x 3/4 Hose Barb 16 198436140 1 Plug, Socket Head 1/2 NPT 17 145986150 1 Connector, Male 1/2 BSPT x 3/4 Hose Barb 18 19-00048 2 Hose Clamp #48 19 19-00040 2 Hose Clamp #40 20 19-00012 3 Hose Clamp #12 21 21-31003 ** Hex Head Plug 3/8 NPT 22 12-00701 8 Capscrew, Hex Head M8 x 1.25 x 110 mm 23 12-01138 4 Capscrew, Hex Head M6 x 1.0 x 110 mm 24 12-00712 3 Capscrew, Hex Head M8 x 1.25 x 25 mm 25 15-00008 4 Flat Washer M6 26 15-00701 12 Flat Washer M8 27 11-13101 1 Gasket 28 19-00024 2 Hose Clamp #24 29 13-00710 1 Stud M8 x 1.25 x 20 x 25 mm 30 14-00711 1 Hex Nut M8 x 1.25 31 21-10002 1 Drain Cock 1/4 NPT -

(stainless steel) - (cast iron) -

(L844 only) -

-

(35 mm OAL) -

**As required

P844-3 04/08

3 - 1

GROUP 3 – COOLING SYSTEM

Expansion Tank & Exhaust Manifold M844 & M844L

Keel Cooled Applications

P844-3 04/08

3 - 2

A-6420, A-6510 / D-2460

GROUP 3 – COOLING SYSTEM

Expansion Tank & Exhaust Manifold M844 & M844L

Keel Cooled Applications

KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER

1 10-38101 1 Exhaust Manifold/Expansion Tank 2 20-12019 2 End Cap 3 28-13101 1 Cover Plate 4 21-12007 1 Filler Cap 5 145206022 1 Thermostat 6 11-38101 1 Gasket 7 00-13101 1 Spring 8 00-71001 1 Decal, “Northern Lights” 9 21-10002 1 Drain Cock 1/4 NPT -

 10 18-13109 1 Hose,Overow5/16"IDx25" -

11 19-02044 2 Hose Clamp #44 12 21-31003 1 Plug, Hex Head 3/8 NPT 13 12-00701 8 Capscrew, Hex Head M8 x 1.25 x 110 mm 14 12-01138 4 Capscrew, Hex Head M6 x 1.0 x 110 mm 15 15-00008 4 Flat Washer M6 16 15-00701 8 Flat Washer M8 17 11-13101 1 Gasket 18 21-51900 1 Plug, Socket Head 1/8 NPT 19 145536050 1 Hose 20 21-12205 2 Male Connector 3/8 NPT x 1/2 HB 21 19-00006 2 Hose Clamp #6 22 11-31902 1 Gasket 23 27-31921 1 Adapter, Dry Exhaust Straight 1-1/2 NPT 27-32007 1 Elbow, Dry Exhaust 24 00-12000 1 Heat Shield 00-32008 1 Lagging

(7 PSI) -

(82° C) -

(M-844L & M20CR, CRW) -

(M20CR, CRW only) -

(used with Straight Adapter - M20CR, CRW only) -

(used with Dry Elbow) -

P844-3 04/08

3 - 3

GROUP 3 – COOLING SYSTEM

Coolant Pump – Industrial Applications NL844 & 844L

P844-3 04/08

3 - 4

P844waterpump

Northern Lights NL844W3 Parts Manual

Specifications and Main Features

Frequently Asked Questions

User Manual