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SKU:
NLT2T03349
Ships for free in 2–4 business days.
Fuel Lift Pump for Northern Lights M643 M673 M753 M843 / M16C M20CR Marine Generators
$53.79
In Stock
$53.79
Sale price
$53.79
Regular price
This fuel lift/feed pump is for compatible Northern Lights M643, M673, M753, M843 and related M16C/M20CR marine-generator engine applications.
Estimated delivery between
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
| Brand / Equipment | Compatible Models / Engines | Fitment Notes |
|---|---|---|
| Northern Lights | M643, NL643, M673 | Marine generator families |
| Northern Lights | M753, M843 | Marine generator families |
| Marine / industrial | M16C, M20CR, M20CR2 references | Verify engine manufacturer/serial and pump configuration |
Product Overview
Northern Lights documentation confirms M643, M673, M753 and M843 as established marine generator families. A lift pump on these diesel systems supplies fuel from the tank/filter side to the engine injection equipment and helps the system maintain prime.
A weak lift pump can cause hard starting after sitting, air in the fuel system, loss of power at higher load, or repeated need to hand-prime. Northern Lights model suffixes can denote different engine versions, so the pump should be matched by genset model, engine serial and the original pump configuration.
Key Features & Performance
- Low-pressure diesel fuel supply for compatible marine generator sets
- Applications include Northern Lights M643, M673, M753 and M843 families
- Supports priming and steady fuel delivery to the injection system
Product Details
- Component: Fuel lift / feed pump
- Application: Diesel marine generator / industrial engine
What to Verify Before Ordering
Confirm generator model suffix, engine serial number, mounting pattern and fuel-port orientation before ordering.
Frequently Asked Questions
What does the lift pump do on a marine generator?
It moves fuel through the low-pressure supply side so the injection system receives a steady, air-free fuel supply.
Why verify the model suffix?
Northern Lights used multiple engine versions across generator generations, and similar model numbers can use different service parts.