Part-number relationships
| Relationship | Reference family | Number |
|---|---|---|
| Primary Cummins Part Number | Eight-rib accessory-drive belt | 3289930 |
| Published Cross-Reference | Same 8PK1750-class belt | 3955378 |
| Dimensional Designation | Eight ribs, nominal 1750 mm | 8PK1750 |
Excavator Engine Parts
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Eight-rib accessory-drive belt identified by Cummins 3289930 and published replacement 3955378. The exact owned belt clearly carries 3289930; the old imported SKU and title mistyped it as 3288930. Cross-reference catalogues publish an 8PK1750-class belt for 6CTA8.3, ISC/ISL/ISLe and QSL applications. Confirm engine serial and accessory layout.
Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.
| Relationship | Reference family | Number |
|---|---|---|
| Primary Cummins Part Number | Eight-rib accessory-drive belt | 3289930 |
| Published Cross-Reference | Same 8PK1750-class belt | 3955378 |
| Dimensional Designation | Eight ribs, nominal 1750 mm | 8PK1750 |
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
2 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 Published engine families: Cummins 6CTA8.3 / ISC / ISL / ISLe / QSL, Fitment limitation: Confirm engine serial, accessory drive and printed code. Confirm the complete part number and machine serial range before ordering.
No alternate number is listed for 3289930. Send the original nameplate for an alternate-number check.
Match the complete part number on the original component. Compare connectors, mounting points and visible dimensions with the product photos. Confirm the exact machine or engine model and serial range before ordering. Send clear photos of the original unit and connector layout when requesting a quote.
Continue comparing verified references from the same system.