Starter Motors
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Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
Quotation details: MOQ, availability, lead time, item condition (new or remanufactured) and warranty coverage must be confirmed in your quotation before ordering.
| Relationship | Reference family | Number |
|---|---|---|
| Primary Cat Part Number | Official 12V heavy-duty starter identity | 3E-1865 |
| Same-number Formatting Variant | Search alias only | 3E1865 |
| Official Cat Reman Alternative | Remanufactured alternative; not a formatting alias | 0R-9271 |
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. Cross-references require a specification and fitment check; they do not by themselves confirm direct interchangeability. Related assemblies and remanufactured numbers are separate relationship types.
Product summary
Before ordering
Machine fitment
2 model references
Fitment / evidence notes
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 Official Cat track-type tractors: D3C / D3C II / D4C / D4C II / D5C, Official Cat track loaders and toolcarriers: 931C / 931C II / 935C / 935C II / IT12. Recorded fitment/evidence notes: Fitment limitation: Confirm 3E-1865, 12 V, mounting arrangement, terminal layout and machine serial range before shipment. Confirm the complete part number and machine serial range before ordering.
Formatting aliases for the same number: 3E1865. Remanufactured references: 0R-9271.
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.
