Key — Woodruff key (Shaft to impeller)
EMD Part No.: 103909DLW Part No.: 20310092
Key — Woodruff key (Shaft to impeller)
Application: EMD water pump assemblies
Part of our Water pump product line
The Key — Woodruff key (Shaft to impeller) is identified by EMD Part No. 103909 and DLW Part No. 20310092. EMD water-pump parts references specifically identify 103909 as the Woodruff Key — Shaft to Impeller, while the corresponding DLW reference is 20310092. EMD parts listings also identify 103909 as a Woodruff key. The component should be identified using the correct EMD and DLW part numbers and the applicable water-pump configuration.
How This Part Works
The Key — Woodruff key (Shaft to impeller) is a mechanical key used at the shaft-to-impeller connection within the water-pump assembly. It provides the keyed connection between the water-pump shaft and impeller so that rotational drive can be transmitted between the two components. The key is distinct from the Woodruff key used at the shaft-to-drive-gear connection, which is identified separately as EMD 108627 and DLW 20310109.
Signs It's Time to Replace
- Key wear: abnormal wear at the Woodruff key can affect the shaft-to-impeller connection
- Deformation: a bent, distorted, or otherwise deformed key should be assessed before reuse
- Keyway wear: abnormal wear or damage in the mating shaft or impeller keyway should be inspected
- Surface damage: scoring, cracking, or other visible damage can affect the key's serviceability
- Loose shaft-to-impeller connection: abnormal movement at the keyed connection should prompt inspection of the key and mating keyways
Apex focuses on EMD engine components and water-pump system parts for EMD applications. The Key — Woodruff key (Shaft to impeller) is identified by the specific EMD Part No. 103909 and DLW Part No. 20310092, allowing customers to source the component using established EMD and DLW references. Its specific identification as the shaft-to-impeller Woodruff key helps distinguish it from the separate shaft-to-drive-gear Woodruff key used in the EMD water-pump drive arrangement.
See all Water pump parts →- Engine Compatibility
- EMD 645 & EMD 710 Series
- Applications
- Locomotive · Marine · Power Generation
- Quality Standard
- ISO 9001:2015 Certified · OEM Grade
OEM GradeExport QualityReady Stock
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