Part-number relationships
| Relationship | Reference family | Number |
|---|---|---|
| Primary Equipment Part Number | CAT fuel-injector reference | 326-4756 |
| Remanufactured Alternative | CAT Reman injector; not the same new-part number | 10R-7951 |
Excavator Engine Parts
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.
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.
| Relationship | Reference family | Number |
|---|---|---|
| Primary Equipment Part Number | CAT fuel-injector reference | 326-4756 |
| Remanufactured Alternative | CAT Reman injector; not the same new-part number | 10R-7951 |
Product fitment guide
Quickly compare the reference number and recorded machine applications. Use photos of your original unit and the checklist before ordering.
Part identification
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
Before ordering
Machine fitment
1 model reference
Fitment / evidence notes
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
Recorded compatible model references include CAT excavators: 311D LRR / 312D / 312D L / 313D / 314D CR / 314D LCR / 320D / 320D L. Recorded fitment/evidence notes: Fitment limitation: Confirm CAT serial prefix, engine arrangement and injector calibration. Confirm the complete part number and machine serial range before ordering.
Remanufactured references: 10R-7951.
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.
Continue comparing verified references from the same system.