Part-number relationships
| Relationship | Reference family | Number |
|---|---|---|
| Primary Manufacturer Part Number | Fuel valve nozzle | 4W-7017 |
| Formatted Alias | Same number without separator | 4W7017 |
| Remanufactured Alternative | Manufacturer-listed nozzle assembly | 0R-3421 |
6 product photos · Select a thumbnail to change the main view.
Excavator Engine Parts
Fuel-injection valve nozzle identified by part number 4W-7017 for 3406B and 3406C engines, including supported 245, 245B and 245D excavator applications. The official catalog lists 0R-3421 as a remanufactured nozzle-assembly alternative, not as a formatting alias. Confirm the engine arrangement and original nozzle number before ordering.
Fitment status: Verified · Checked 2026-07-28Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
| Relationship | Reference family | Number |
|---|---|---|
| Primary Manufacturer Part Number | Fuel valve nozzle | 4W-7017 |
| Formatted Alias | Same number without separator | 4W7017 |
| Remanufactured Alternative | Manufacturer-listed nozzle assembly | 0R-3421 |
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Product fitment guide
Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.
Part identification
Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.
Product summary
Before ordering
Machine fitment
4 model references
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 Engine family: Cat 3406B / 3406C, Excavators: Cat 245 / 245B / 245D, Additional official applications: 621E / 621F / 623E / 623F / 627E / 627F / 980C / 980F / 980F II, Fitment limitation: Confirm engine arrangement and stamped nozzle number. Confirm the complete part number and machine serial range before ordering.
Formatting aliases for the same number: 4W7017. Remanufactured references: 0R-3421.
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.
Continue comparing recovered references from the same system.