Part-number relationships
| Relationship | Reference family | Number |
|---|---|---|
| Primary Part Number | Exact identity retained from the supplied application catalog | 2Y-1920 |
Excavator Starter Motors
Caterpillar 2Y-1920 Starter Motor for 120B 140B 225
Brand illustration · Exact product photo available on request.
OEM / reference2Y-1920
SpecificationStarter Motor
Catalog ID91000775
The supplied Caterpillar application catalog identifies 2Y-1920 as a starter motor assembly. The source set contains 21 supporting catalog rows. Recorded machine applications include 120B, 140B, 225, 621E, 621R, 621S; recorded engine references include 3306. 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
- Caterpillar
- Catalog Classification
- Motor Gp-Elec -C
- Application Records
- 21
- 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
- 91000775
- 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
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 2Y-1920
Which machines use 2Y-1920?
Recorded compatible model references include Machine models 1: 120B / 140B / 225 / 621E / 621R / 621S / 930 / 930R / 930T / 966C, Machine models 2: 966R / D4D / D4E / D5B / D5E / D6C / D6D / D6D SR / D6E / D6E SR, Engine models: 3306, 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 2Y-1920?
No alternate number is listed for 2Y-1920. Send the original nameplate for an alternate-number check.
How do I confirm 2Y-1920 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.