Excavator Engine Parts

456-3509 Common-Rail Injector for CAT C9.3 336F 340F Excavators

Q: What numbers are documented for 456-3509?

Primary Equipment Part Number: 456-3509. Remanufactured Alternative: 20R-5075. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 456-3509 before ordering?

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

EexcavaStart packaging illustration · Not a photograph of this exact part. Exact-unit photo availability is not confirmed; send your original part number and unit photos with your inquiry.

OEM / reference456-3509

SpecificationCommon-Rail Fuel Injector

Catalog ID79826479

Product Type: Common-Rail Fuel Injector
Engine Platform: CAT C9.3
Calibration: Confirm engine arrangement and injector code
Gallery Representation: EexcavaStart neutral packaging illustration; exact product photo available on request

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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	CAT common-rail injector reference	456-3509
Remanufactured Alternative	CAT Reman CR350/C9 injector; separate service number	20R-5075

Product fitment guide

Part numbers and compatible models

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

Part identification

Reference numbers

Primary number

456-3509

Remanufactured number

20R-5075

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

Common-Rail Fuel Injector

Category: Excavator Engine Parts
Catalog ID: 79826479
Illustration views: 1

Before ordering

Confirm these details

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

Machine fitment

Compatible model references

2 model references

CAT excavators: 336F / 336F XE / 340F and listed long-reach/LN variants
Additional CAT equipment: D6/D6T/D7E, 725/725C, 966M/972M, 973K and listed grader/scraper families

Fitment / evidence notes

Fitment limitation: Confirm CAT serial prefix, C9.3 arrangement and injector calibration

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 456-3509

Which machines use 456-3509?

Recorded compatible model references include CAT excavators: 336F / 336F XE / 340F and listed long-reach/LN variants, Additional CAT equipment: D6/D6T/D7E, 725/725C, 966M/972M, 973K and listed grader/scraper families. Recorded fitment/evidence notes: Fitment limitation: Confirm CAT serial prefix, C9.3 arrangement and injector calibration. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 456-3509?

Remanufactured references: 20R-5075.

How do I confirm 456-3509 before ordering?

Match the complete part number on the original component. Compare connectors, mounting points and visible dimensions with your original unit and the recorded specifications. 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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