Excavator Starter Motors
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Cat identifies 350-8694 as a 24-volt, 115-amp heavy-duty electric starting motor with an SAE No. 3 nose housing and marine approval. The official compatible-model record lists C7, C9, C11, C13, C13B, C15 and C18 industrial-engine families, G3406/G3408/G3412 gas engines, 3516B and selected generator-set, loader and haul-truck applications. Eight selected owned photographs show the same 50MT-style starter from the pinion, mounting, body and terminal sides. Confirm 350-8694, 24 V, 115 A, nose housing, pinion and terminal layout before ordering.
Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
| Relationship | Reference family | Number |
|---|---|---|
| Primary Cat Part Number | Official 24V heavy-duty starter identity | 350-8694 |
| Same-number Formatting Variant | Search alias only | 3508694 |
| Official Cat Reman Alternative | Remanufactured alternative; not a formatting alias | 10R-9815 |
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. Related assemblies and remanufactured numbers are not presented as direct interchanges.
Product summary
Before ordering
Machine fitment
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
Recorded compatible model references include Official Cat industrial engines: C7 / C9 / C11 / C13 / C13B / C15 / C18 / 3516B, Official Cat gas and generator engines: G3406 / G3408 / G3408C / G3412 / G3412C / C175-16 / C175-20, Additional official Cat equipment: Selected 966/972 loaders, 725C articulated trucks and 793/794/795/796/798 haul-truck families, Fitment limitation: Confirm 350-8694, 24 V, 115 A, SAE No. 3 nose housing, pinion, 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: 3508694. Remanufactured references: 10R-9815.
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.
