Excavator Starter Motors
5 product photos · Swipe on mobile, or hover and select a thumbnail.
Cummins 3283329 is a 12V clockwise starter with a 10-tooth pinion for published Cummins B-Series 3.9L and 5.9L engine applications, including 4BT3.9 and 6BT5.9 families. The official Cummins Starter Cross Reference lists Bosch 120488294 in the Bosch column for 3283329. Six independently reachable exact-number pages passed live revalidation, and five owned 1000 x 1000 photographs show one consistent three-hole starter and matching 10-tooth pinion geometry. Published replacement output values vary from 2.5kW through 3.2kW, so rated power is not presented as a verified specification. Confirm 3283329, 12V, tooth count, rotation, flange, terminals, engine CPL and equipment serial before shipment.
Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
| Relationship | Reference family | Number |
|---|---|---|
| Primary Equipment Part Number | Cummins | 3283329 |
| Official Manufacturer Cross-Reference | Bosch column in Cummins catalog | 120488294 |
| Published Related Starter Family - Verify Complete Unit | Cummins | 3283330 / 3604648 / 3901365 |
| Published Cross-Reference - Verify Complete Unit | Bosch-family catalogs | 0001367079 / 0001362332 / 0001362319 / 0001362321 |
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 Cummins engine family: B-Series 3.9L and 5.9L, Cummins engine model: 4BT3.9 / 4B, Cummins engine model: 6BT5.9 / 6B, Fitment limitation: Confirm 3283329, 12V, 10 teeth, rotation, flange, terminals, CPL and serial. Confirm the complete part number and machine serial range before ordering.
Manufacturer number: 120488294. Related assembly numbers (not direct interchanges): 3283330 / 3604648 / 3901365.
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.
