Part-number relationships
| Relationship | Reference family | Number |
|---|---|---|
| Primary Part Number | Exact identity retained from the supplied application catalog | 1-6903 |
Excavator Starter Motors
1-6903 Starter Motor for Case IH PT225 PT270 PTA251
Brand illustration · Exact product photo available on request.
OEM / reference1-6903
SpecificationStarter Motor
Catalog ID91000590
Primary reference 1-6903 is listed as a starter motor for Case IH equipment. The source set contains 27 supporting catalog rows. Recorded machine applications include PT225, PT270, PTA251, PTA270, PTA280, PTA297. Confirm the complete part number, electrical rating, terminals, mounting arrangement and machine serial range against the original unit before ordering.
- Product Type
- Starter Motor
- Supply Brand
- EexcavaStart
- Equipment Brand
- Case IH
- Catalog Classification
- Starter Motor
- Application Records
- 27
- 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
Starter Motor
- Category
- Excavator Starter Motors
- Catalog ID
- 91000590
- Photo views
- 1
Before ordering
Confirm these details
- Confirm voltage and power rating against the original starter nameplate.
- Compare mounting-hole pattern, flange position and overall body orientation.
- Confirm pinion tooth count and rotation where those values are specified.
- Verify the engine model and machine serial range before ordering.
Machine fitment
Compatible model references
3 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 1-6903
Which machines use 1-6903?
Recorded compatible model references include Machine models 1: PT225 / PT270 / PTA251 / PTA270 / PTA280 / PTA297 / PTA310 / PTA325 / ST220 / ST225, Machine models 2: ST250 / ST251 / ST270 / ST280 / ST310 / ST320 / ST325 / ST350 / STEIGER, 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 1-6903?
No alternate number is listed for 1-6903. Send the original nameplate for an alternate-number check.
How do I confirm 1-6903 before ordering?
Confirm voltage and power rating against the original starter nameplate. Compare mounting-hole pattern, flange position and overall body orientation. Confirm pinion tooth count and rotation where those values are specified. Send clear photos of the original unit and connector layout when requesting a quote.