Part-number relationships
| Relationship | Reference family | Number |
|---|---|---|
| Primary Part Number | Exact identity retained from the supplied application catalog | AT257258 |
Excavator Alternators
John Deere AT257258 Alternator for 250C Articulated Dump Truck
Brand illustration · Exact product photo available on request.
OEM / referenceAT257258
SpecificationAlternator
Catalog ID91001039
The supplied John Deere application catalog identifies AT257258 as an alternator assembly. The source set contains 23 supporting catalog rows. Recorded machine applications include 250C Articulated Dump Truck, 300C Articulated Dump Truck, 350C and 400C Articulated Dump Trucks, B25B Articulated Dump Truck, B25C Articulated Dump Truck, B30B Articulated Dump Truck. Confirm the complete part number, electrical rating, terminals, mounting arrangement and machine serial range against the original unit before ordering.
- Product Type
- Alternator
- Supply Brand
- EexcavaStart
- Equipment Brand
- John Deere
- Catalog Classification
- Alternator
- Application Records
- 23
- Condition
- New replacement part
- Gallery Representation
- EexcavaStart neutral packaging illustration; exact product photo available on request
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
Alternator
- Category
- Excavator Alternators
- Catalog ID
- 91001039
- Photo views
- 1
Before ordering
Confirm these details
- Confirm voltage and rated amperage against the original alternator label.
- Compare mounting ears, pulley type and pulley-groove count.
- Check plug shape, terminal position and regulator connection.
- Verify the engine model and machine serial range before ordering.
Machine fitment
Compatible model references
2 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 AT257258
Which machines use AT257258?
Recorded compatible model references include Machine models: 250C Articulated Dump Truck / 300C Articulated Dump Truck / 350C and 400C Articulated Dump Trucks / B25B Articulated Dump Truck / B25C Articulated Dump Truck / B30B Articulated Dump Truck / B30C Articulated Dump Truck / B35C and B40C Articulated Dump Trucks / B40B Articulated Dump Truck, Fitment limitation: Confirm the exact part number, electrical rating, terminal layout, mounting and machine serial range before shipment. Confirm the complete part number and machine serial range before ordering.
What numbers are documented for AT257258?
No alternate number is listed for AT257258. Send the original nameplate for an alternate-number check.
How do I confirm AT257258 before ordering?
Confirm voltage and rated amperage against the original alternator label. Compare mounting ears, pulley type and pulley-groove count. Check plug shape, terminal position and regulator connection. Send clear photos of the original unit and connector layout when requesting a quote.