Excavator Engine Parts

4010077 Fuel Pump Check Valve for Cummins ISX QSX15

Q: What numbers are documented for 4010077?

Primary Cummins Part Number: 4010077. Formatted Distributor Alias: 4010077CUM. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 4010077 before ordering?

Match the complete part number, compare the connector or mounting arrangement with the product photos, and confirm the machine or engine model and serial range. Send clear photos of the original unit when requesting a quote.

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OEM / reference4010077

SpecificationFuel Pump Check Valve

Catalog ID51049625

Fuel-system check valve identified by Cummins 4010077 for ISX, QSX and QSX15 applications. A Cummins QSX15 parts catalogue lists 4010077 as a check valve, and independent exact-number records identify its fuel-pump function. The old page's 24V claim was deleted because this is a mechanical valve, not a voltage-rated electrical component.

Product Type: Fuel Pump Check Valve
Product Brand: EexcavaStart
Operation: Mechanical one-way valve
Electrical Rating: Not applicable
Condition: New replacement part

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Part-number relationships

Relationship	Reference family	Number
Primary Cummins Part Number	Fuel-pump check valve	4010077
Formatted Distributor Alias	Same part with distributor suffix	4010077CUM

Product fitment guide

Part numbers and compatible models

Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.

Part identification

Reference numbers

Primary number

4010077

Formatting alias

4010077CUM

Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.

Product summary

Fuel Pump Check Valve

Category: Excavator Engine Parts
Catalog ID: 51049625
Photo views: 1

Before ordering

Confirm these details

Match the complete part number on the original component.
Compare connectors, mounting points and visible dimensions with the product photos.
Confirm the exact machine or engine model and serial range before ordering.

Machine fitment

Compatible model references

3 model references

Published engine families: Cummins ISX / QSX / QSX15
Published system: High-pressure fuel-pump circuit
Fitment limitation: Confirm engine serial and fuel-pump arrangement

Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.

Quick fitment answers

Common questions about 4010077

Which machines use 4010077?

Recorded compatible model references include Published engine families: Cummins ISX / QSX / QSX15, Published system: High-pressure fuel-pump circuit, Fitment limitation: Confirm engine serial and fuel-pump arrangement. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 4010077?

Formatting aliases for the same number: 4010077CUM.

How do I confirm 4010077 before ordering?

Match the complete part number on the original component. Compare connectors, mounting points and visible dimensions with the product photos. Confirm the exact machine or engine model and serial range before ordering. Send clear photos of the original unit and connector layout when requesting a quote.

Continue comparing verified references from the same system.

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