
Gear accessory drive
Gear accessory drive
Application: EMD accessory drive assemblies
Part of our Gear product line
The Gear Accessory Drive is identified by EMD Part No. 8141909. EMD parts references identify 8141909 as Gear Accessory Drive, and specialist EMD parts references list it as an accessory-drive gear. No reliable DLW cross-reference was established for this specific EMD part in the sources reviewed. :contentReference[oaicite:20]{index=20}
How This Part Works
The Gear Accessory Drive is a gear used in the EMD accessory-drive arrangement. It provides the specified toothed drive interface within the accessory drive.
Signs It's Time to Replace
- Gear-tooth wear: abnormal wear on the teeth should be assessed
- Pitting: pitting on gear surfaces should be investigated
- Scoring: grooves or scoring can affect gear engagement
- Tooth damage: chipped, cracked, or broken teeth should be evaluated
- Abnormal gear noise: changes in operating noise can indicate gear or drive deterioration
Apex identifies the Gear Accessory Drive by EMD Part No. 8141909. The specific EMD reference helps customers source the accessory-drive gear and distinguish it from other EMD accessory-drive components.
See all Gear parts →- Engine Compatibility
- EMD 645 & EMD 710 Series
- Applications
- Locomotive · Marine · Power Generation
- Quality Standard
- ISO 9001:2015 Certified · OEM Grade

