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Our offices are closed for Labor Day. Orders placed online will be processed on Tuesday 9/2/2025.

Our offices are closed for Labor Day. Orders placed online will be processed on Tuesday 9/2/2025.

Northern Lights Water Pumps and Heat Exchangers for 844 Series Generators

Our broad selection of Northern Lights Water Pumps and Heat Exchangers are sure to help with your M844 Generator needs.

If you do not see the Northern Lights 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.


RETAINING SPRING - M753W2 / NL753W2 (THERMOSTAT)

$12.46

GASKET - M16C / M20CL / M20CR / M20CR2 (THERMOSTAT COVER)

$9.97

FRESH WATER PUMP KIT - M843N / M844 / M844L (MARINE)

Mounting Gasket and Cap Included

$267.78

THERMOSTAT - M16C / M753K / M773LW2 (180°F/82°C)

$30.34

END CAP - M16C / M20CL / M20CR / M20CR2 (HEAT EXCHANGER)

$68.72

INLET HOSE - M843JK / M843NK / M843NW2 / M843NW3 (FRESH WATER PUMP, MOLDED)

$45.34

HEAT EXCHANGER MANIFOLD EXPANSION PLUG ASSEMBLY - M843 / M773

Surplus Item - Special Pricing

$229.32

HEAT EXCHANGER ASSEMBLY, WHITE CU-NI - M864K / M864W / M844 / M844K

$2,271.51

HEAT EXCHANGER ELEMENT, CU-NI - M844 / M844K / M844LK2 / M844LW2

$791.10

REPAIR KIT - L844D / M844K / M844LK (FOR RAW WATER PUMPS 25-12057 & 25-15405)

$373.76

RAW WATER PUMP - M753K / M753W / M753W2 / NL753K

$693.29

IMPELLER KIT - M16C / M20CL / M20CR / M20CR2 (WITH O-RING)

From $46.30

WEAR PLATE - M753K / M753W / M753W2 / NL753K (SEA WATER PUMP)

$20.58

END COVER - M753K / M753W / M753W2 / NL753K (SEA WATER PUMP)

$47.42

BEARING - M16C / M20CL / M20CR / L984 (SEA WATER PUMP)

$11.28

SEAL - M753K / M753W / M753W2 / NL753K (SEA WATER PUMP, LIP TYPE)

$28.78

MECHANICAL SEAL - M643 / M643K / M643M / NL643 (SEA WATER PUMP, GREEN)

$64.47

COVER O-RING - M16C / M753K / L844D / L984 (SEA WATER PUMP)

$1.92

RAW WATER PUMP DRIVE GEAR - M844K2 / M844W2

$297.18

FRESH WATER PUMP - M843N / M843NK / M843NW (INDUSTRIAL)

$276.76

GASKET - M16C / M20CL / M20CR / M20CR2 (THERMOSTAT COVER, 42 MM ID)

$4.19

GASKET - M20CR2 / M20CRW2 / L844D / M843JK (FRESH WATER PUMP)

$7.61