Excavator Engine Parts

490B-31000A Engine Oil Pump for Xinchai 490 4D27G31

Q: What numbers are documented for 490B-31000A?

Primary Equipment Part Number: 490B-31000A. Cataloged Related Pump Number - Verify Individually: 490B-31004. Cataloged Related Pump Number - Verify Individually: 495B-31000A. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 490B-31000A 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.

490B-31000A Engine Oil Pump for Xinchai 490 4D27G31, OEM/reference 490B-31000A, Gear-Driven Engine Lubrication Oil Pump, product view 1

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OEM / reference490B-31000A

SpecificationGear-Driven Engine Lubrication Oil Pump

Catalog ID73565783

Product Type: Engine Lubrication Oil Pump
Product Brand: EexcavaStart
Drive Type: Gear driven
Mounting: Stud-mounted pump body
Condition: New replacement oil pump

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Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.

Quotation details: MOQ, availability, lead time, item condition (new or remanufactured) and warranty coverage must be confirmed in your quotation before ordering.

Part-number relationships

Relationship	Reference family	Number
Primary Equipment Part Number	Xinchai engine oil pump	490B-31000A
Cataloged Related Pump Number - Verify Individually	Xinchai oil-pump family reference	490B-31004
Cataloged Related Pump Number - Verify Individually	Xinchai 495-family pump reference	495B-31000A

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

490B-31000A

Related assembly

490B-31004
495B-31000A

Formatting aliases are the same number written differently. Cross-references require a specification and fitment check; they do not by themselves confirm direct interchangeability. Related assemblies and remanufactured numbers are separate relationship types.

Product summary

Gear-Driven Engine Lubrication Oil Pump

Category: Excavator Engine Parts
Catalog ID: 73565783
Photo views: 2

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

Cataloged engine family: Xinchai 490 / 4D27G31
Cataloged engine variants: A490BPG / C490BPG / 490BPG
Equipment type: Industrial forklift

Fitment / evidence notes

Fitment limitation: Confirm engine suffix, gear, studs and oil ports

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 490B-31000A

Which machines use 490B-31000A?

Recorded compatible model references include Cataloged engine family: Xinchai 490 / 4D27G31, Cataloged engine variants: A490BPG / C490BPG / 490BPG, Equipment type: Industrial forklift. Recorded fitment/evidence notes: Fitment limitation: Confirm engine suffix, gear, studs and oil ports. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 490B-31000A?

Related assembly numbers (not direct interchanges): 490B-31004, 495B-31000A.

How do I confirm 490B-31000A 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.

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