
Valve — Needle
Valve — Needle
Application: EMD 645 and 710 cylinder test valve assemblies
Part of our Cylinder test valve product line
The Valve — Needle is identified by EMD Part No. 8024846 and DLW Part No. 16210062. EMD parts references identify 8024846 as the Needle Valve used in the Cylinder Test Valve assembly, with the same EMD part number listed for EMD 645 and 710 applications. DLW Part No. 16210062 is the corresponding reference.
How This Part Works
The Valve — Needle is the needle-valve component within the EMD cylinder test valve assembly. It operates within the valve body to provide the specified valve function during cylinder testing and maintenance procedures.
Signs It's Time to Replace
- Valve leakage: leakage through the needle-valve arrangement can indicate wear or damage to the valve or sealing surfaces
- Needle or seating-surface wear: deterioration of the valve's working surfaces can affect proper valve operation
- Sticking or restricted movement: abnormal movement of the needle valve should be investigated
- Visible damage: scoring, deformation, or other physical damage should be assessed
- Thread damage: damaged threaded areas can affect proper installation and adjustment
Apex focuses on EMD engine components and cylinder test-valve parts for EMD applications. The Valve — Needle is identified by EMD Part No. 8024846 and DLW Part No. 16210062 and is documented for both EMD 645 and 710 cylinder test-valve applications. This precise part-number identification helps customers source the correct needle valve rather than a generic valve component.
See all Cylinder test valve parts →- Engine Compatibility
- EMD 645 & EMD 710 Series
- Applications
- Locomotive · Marine · Power Generation
- Quality Standard
- ISO 9001:2015 Certified · OEM Grade





