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 the product photos, and confirm the machine or engine model and serial range. Send clear photos of the original unit when requesting a quote.

Brand illustration · Exact product photo available on request.

OEM / reference456-3509

SpecificationCommon-Rail Fuel Injector

Catalog ID79826479

456-3509 is a common-rail injector for selected C9.3 engine arrangements, including 336F and 340F excavator families. Remanufactured number 20R-5075 is a separate service alternative. Confirm the serial prefix, engine arrangement and injector code. The displayed EexcavaStart package is a catalog illustration, not a photograph of the supplied product.

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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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 the original photos 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. Related assemblies and remanufactured numbers are not presented as direct interchanges.

Product summary

Common-Rail Fuel Injector

Category: Excavator Engine Parts
Catalog ID: 79826479
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

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 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, 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 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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