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Our offices are closed for Labor Day. Orders placed online will be processed on Tuesday 9/3/2025.

Our offices are closed for Labor Day. Orders placed online will be processed on Tuesday 9/3/2025.

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Genuine Northern Lights Parts for M673 and M673D Generators

Northern Lights M673 and M673D Generator Parts

As an Authorized Northern Lights Dealer, we have a huge inventory of genuine parts for Northern Lights M673 and M673D generators, all covered by a 6-month factory warranty.

If you do not see the part you are looking for, please use our quote request form or call us at 888.687.0539: our knowledgeable inside sales staff will gladly assist you.

NL-00-02009
Hassle-Free Return Item

REAR MAIN SEAL & WEAR SLEEVE KIT - M643 / M673 / M753

$254.26

NL-00-78216

SPRING RECEPTACLE - M643 / M643K / M643M / NL643 (1064 STEEL, ZINC PLATED)

$1.17

NL-010109235
Restocking Fee Applies

HEX HEAD CAP SCREW - M643 / M643K / M643M (M6 X 1.0 X 14 MM, WITH LOCK WASHER)

$2.81

NL-011310620
Hassle-Free Return Item

HEX HEAD CAP SCREW - M16C / M20CL / M20CR / M20CR2 (WITH LOCK WASHER)

$2.76

NL-011310635
Hassle-Free Return Item

HEX HEAD CAP SCREW - M16C / M20CL / M20CR (M6 X 1.0 X 35 MM, WITH LOCK WASHER)

$9.97

NL-011310650

CAP SCREW - M16C / M20CL / M20CR / M673

$23.38

NL-012110620
Hassle-Free Return Item

STUD - M643 / M643K / M643M / NL643 (M6 X 1.0 X 20 MM)

$2.48

NL-023100006
Hassle-Free Return Item

HEX HEAD NUT - M16C / M20CL / M20CR / M20CR2 (M6 X 1.0, FLANGED)

$2.81

NL-025100012

SEALING WASHER - M643 / M673 (M12, BONDED)

$16.31

NL-025100016
Hassle-Free Return Item

SEALING WASHER - M673 / M753 / M844D / M844LW2 (BONDED M16)

$16.45

NL-034100508

WOODRUFF KEY - M643 / M643K / M643M / NL643 (8 MM X 5 MM)

$3.02

NL-052100400
Hassle-Free Return Item

O-RING - M643 / M643K / M643M / NL643

$2.11

NL-111316280
Restocking Fee Applies

CYLINDER BLOCK INSERT - M643 / M643K / M643M / NL643

$29.30

NL-115016960

PISTON - M673 / M673L / NL673 / NL673L (STANDARD, WITH RINGS)

$221.14

NL-115107400
Hassle-Free Return Item

RING SET - M673L / M673 / M673D (STANDARD)

$156.98

NL-115176130

CONNECTING ROD BOLT - M643 / M673

$95.81

NL-115396780

CRANKSHAFT PULLEY - M643L / M673LD3

$131.25

NL-12-00712

HEX HEAD CAP SCREW - M643 / M643K / M643M / NL643 (M8 X 1.25 X 25 MM)

$0.51

NL-12-00718

HEX HEAD CAP SCREW - M643 / M673 (M8 X 1.25 X 65 MM)

$2.34

NL-12-00751

HEX HEAD CAP SCREW - M643 / M673 (M8 X 1.25 X 16 MM)

$0.84

NL-12-01131
Hassle-Free Return Item

CRANKSHAFT HEXAGON HEAD M6X1.0 X 20MM - 643 / NL643 / M643

$0.19

NL-12-09712
Hassle-Free Return Item

HEX HEAD CAP SCREW - M30C / M30CW / M33C (M8 X 1.25 X 25 MM, STAINLESS STEEL)

$1.17

NL-130326051
Hassle-Free Return Item

SEALING WASHER - M643 / M643K / M643M / NL643 (M14, ALUMINUM)

$8.38

NL-130516069
Hassle-Free Return Item

SEALING WASHER - M643 / M643K / M643M / NL643

$15.58

NL-131426180
Hassle-Free Return Item

SEALING WASHER - M643 / M643K / M643M / NL643 (M10, COPPER)

$15.87

NL-131426190
Hassle-Free Return Item

SEALING WASHER - M643 / M643K / M643M / NL643 (M6, COPPER)

$0.98

NL-131507010
Hassle-Free Return Item

INJECTION LINE - M673

Surplus Item - Special Pricing

$23.47

NL-131507020
Restocking Fee Applies

INJECTION LINE - M673

$44.82

NL-131507030
Hassle-Free Return Item

INJECTION LINE - M673

$41.09

NL-14-00711
Hassle-Free Return Item

HEX HEAD NUT - M16C / M20CL / M20CR / M20CR2 (M8 X 1.25)

$0.14

NL-14-01131
Hassle-Free Return Item

HEX HEAD NUT - M643 / M643K / M643M / NL643 (M6 X 1.0)

$0.05

NL-145536461
Hassle-Free Return Item

RAW WATER PUMP DISCHARGE HOSE - M643 / M673

$57.71

NL-15-00040
Hassle-Free Return Item

SNUBBING WASHER - M673 / M673L / NL673 / NL673L (2.88 X .531 X .125)

$14.98

NL-15-00701
Hassle-Free Return Item

FLAT WASHER - M643 / M643K / M643M / ML643 (M8)

$0.09

NL-15-00702
Hassle-Free Return Item

LOCK WASHER - M643 / M643K / M643M / NL643 (M8, HELICAL)

$0.14

NL-15-01132
Hassle-Free Return Item

LOCK WASHER - M643 / M643K / M643M / NL643 (M6, HELICAL)

$0.05

NL-19-00036
Hassle-Free Return Item

HOSE CLAMP - M673

$5.71

NL-195906592

GASKET SET - M643 / M673

Surplus Item - Special Pricing

$364.19

NL-198517103
Hassle-Free Return Item

MAIN BEARING - M673 / M673D / M673L / M643 / M753K / M753W (STANDARD)

$14.47

NL-198517112
Hassle-Free Return Item

MAIN BEARING - M673 / M673D / M673L / M643 / M753K / M753W (STANDARD, LOWER 1/2)

$14.47

NL-198517332

MAIN BEARING - M673 / M673D / M673L / M643 (STANDARD)

$13.69

NL-198517342

MAIN BEARING - M673 / M673D / M673L / M643 (STANDARD)

$13.50

NL-198636080
Hassle-Free Return Item

REAR MAIN SEAL (W/O SLEEVE) - M673LD2

$84.71

NL-198736050

DRAIN COCK - M643 / M673 (BRASS, 1/4" BSPT)

$46.86

NL-198996090
Hassle-Free Return Item

INSERT GASKET - M643 / M643K / M643M / NL643

$14.42

NL-25-12013
Hassle-Free Return Item

RAW WATER PUMP END COVER - M673 / M673D (76 MM, 6 HOLES)

$32.44

NL-25-12033
Hassle-Free Return Item

HEXAGONAL HEAD CAP SCREW - M673L3 (M4X0.7 X 10MM S/S)

$0.42

NL-33-83100
Hassle-Free Return Item

CENTERBONDED MOUNT - M643 / M643K / M643M / NL643 (100 LB)

$40.29

NL-33-83105
Hassle-Free Return Item

PLATEFORM MOUNT - M643 / M643K / M643M / NL643 (120 LB)

$114.01

NL-340460170
Hassle-Free Return Item

RAW WATER PUMP DRIVE GEAR - M673 / M673D

$307.62

NL-36-72002

HAND PUMP - M643 / M673

$114.92

NL-T434929
Hassle-Free Return Item

OIL PAN - M643 / M673 / M673D / M673L (MARINE)

$292.95

888.640.4791 (U.S.)|225.706.4858 (Int.)

Monday-Friday 7am-5pm CST
8784 S. Choctaw Dr. Baton Rouge, LA 70815
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