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 Cat Part Number | Official fuel-injector O-ring identity | 125-8274 |
| Same-number Formatting Variant | Search alias only | 1258274 |
| Related Fuel-System Seal - Not Interchangeable | Manufacturer record lists it as frequently bought together | 114-8718 |
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
3 model references
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 Official Cat Engine Families: 3114 / 3116 / 3126, Representative Cat Excavators: 320B / 322 / 322B / 325 / 325B / M318 / M320, Other Official Applications: Selected loaders, graders, tractors, compactors, pavers and other equipment listed by Cat. Recorded fitment/evidence notes: Fitment Limitation: Confirm 125-8274, 7.59 mm ID, seal position, engine arrangement and machine serial. Confirm the complete part number and machine serial range before ordering.
Formatting aliases for the same number: 1258274. Related assembly numbers (not direct interchanges): 114-8718.
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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