Part-number relationships
| Relationship | Reference family | Number |
|---|---|---|
| Primary Hitachi Part Number | Pump-device gear-shaft reference | 3055594 |
Excavator Hydraulic Spare Parts
3055594 Hydraulic Pump Gear Shaft for Hitachi EX120-5 EX130H-5
4 product photos · Swipe on mobile, or hover and select a thumbnail.
OEM / reference3055594
SpecificationHydraulic Pump Gear Shaft
Catalog ID51144576
Hydraulic-pump gear shaft identified by Hitachi reference 3055594. The Hitachi EX120-5 family parts catalog lists 3055594 as SHAFT; GEAR inside the pump device and publishes it for EX120-5, EX120SS-5, EX120-5HG, EX120-5LV, EX120-5X, EX120-5E, EX120-5Z, EX130H-5 and EX130K-5 variants. Four exact owned photographs show one consistent splined gear shaft and shoulder profile. A John Deere part uses the same digits, so brand and pump application must be confirmed and the number alone must not be used to assume interchangeability. Compare spline count, gear diameter, shaft length, shoulders, pump device, machine variant and serial number before ordering.
- Product Type
- Hydraulic-pump gear shaft
- Catalog Nomenclature
- SHAFT; GEAR
- Location
- Pump device gear section
- Spline / Gear / Dimensions
- Confirm against the removed shaft and pump parts catalog
- Condition
- New replacement gear shaft
Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
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
Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.
Product summary
Hydraulic Pump Gear Shaft
- Category
- Excavator Hydraulic Spare Parts
- Catalog ID
- 51144576
- Photo views
- 4
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
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
Common questions about 3055594
Which machines use 3055594?
Recorded compatible model references include Published excavator family: Hitachi EX120-5 / EX120SS-5 / EX120-5HG / EX120-5LV / EX120-5X, Published excavator variants: Hitachi EX120-5E / EX120-5Z / EX130H-5 / EX130K-5, Assembly: Hydraulic pump device gear section, Fitment limitation: Confirm brand, pump device, spline, dimensions, machine variant and serial. Confirm the complete part number and machine serial range before ordering.
What numbers are documented for 3055594?
No alternate number is listed for 3055594. Send the original nameplate for an alternate-number check.
How do I confirm 3055594 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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