Fuel Pump with Base for Cummins N14 M11 ISM11 QSM11 | 3090942 3417677
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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.
- Cummins N14 Engine
- Cummins M11 Engine
- Cummins ISM11 Engine
- Cummins QSM11 Engine
Product Overview
Long cranking, low supply pressure, power loss under load, or fuel drain-back can point to a worn gear-driven pump once filters, lines, tank pickup, shutoff controls, and air leaks are checked. This assembly replaces the pump and base used on compatible heavy-duty Cummins engines.
Engine CPL and pump configuration matter. Confirm the stamped pump number, mounting base, drive, ports, timing or calibration requirements, and engine serial number before service.
This is a high-quality aftermarket replacement or service part and is not manufactured or supplied by the original equipment brand. The names below identify compatible applications only.
Key Features & Performance
- Pump-and-base assembly for select Cummins heavy-duty engines
- Supports fuel supply on N14 and M11-derived applications
- Cross-references common 3090942 and 3417677 families
- Replacement option for worn, leaking, or low-output mechanical pumps
Replaces Part Numbers
- Cummins 3090942
- Cummins 3090942RX
- Cummins 3417674
- Cummins 3417677
Common Uses
- Replacing a confirmed low-output engine-driven fuel pump
- Correcting external pump leakage or housing damage
- Repairing hard starting or power loss after supply-side diagnosis
Technical Specifications
- Product Type: Mechanical fuel pump with mounting base
- Engine Families: Cummins N14, M11, ISM11, QSM11
- Fuel: Diesel
- Replacement Type: Aftermarket
Installation & Fitment
- Use the engine serial number and CPL to confirm the correct pump
- Clean the fuel system and replace restricted filters before installation
- Prime and bleed the system according to Cummins service information
- Check supply pressure, leaks, and engine operation with proper diagnostic equipment
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown. Always verify the original part number, measurements, connections, and equipment configuration before purchase.
Frequently Asked Questions
Q: Does low power always mean the fuel pump is bad? A: No. Filters, suction leaks, tank restrictions, injectors, boost faults, and electronic controls can create similar symptoms.
Q: Why is the engine serial number important? A: Cummins configurations vary by CPL and build, even within the same engine family.
Q: Is professional installation recommended? A: Yes. Heavy-duty diesel fuel systems require correct priming, cleanliness, pressure testing, and service procedures.
Part Summary
keywords: Cummins 3090942 fuel pump, 3417677 pump replacement, N14 fuel pump with base, M11 diesel fuel pump, ISM11 low fuel pressure, QSM11 fuel supply pump, Cummins hard start pump, aftermarket Cummins fuel pump
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.