FLOAT NEEDLE VALVE size 175 ZENITH NDX/NDIX
$ 22.9
Part number: ST4074
Made in: Italy
Zenith NDX/NDIX Float Needle Valve Size 175 MPN 1572
This genuine float needle valve controls fuel entry into the carburetor float chamber. As the float rises, the valve closes against its seat to maintain the correct fuel level for stable operation of the main circuit, progression, and enrichment circuits.
Size 175 — MPN 1572 A worn, contaminated, or poorly sealing valve can allow excessive fuel level, flooding, rich running, fuel leakage, or unstable calibration. A valve that does not open freely can restrict fuel replenishment and contribute to fuel starvation during sustained demand. This replacement is intended for Zenith NDX and NDIX carburetors; verify the original valve’s dimensions and interface before installation.
This replacement part is suitable for carburetor service and restoration work where the original component is worn, damaged, or missing.
Reference/MPN: 1572.
Technical role: Float needle valve, size 175, regulates fuel entry into Zenith NDX/NDIX carburetor float chambers; MPN 1572.
Service relevance: Replacement addresses a worn or poorly sealing valve that may contribute to flooding, fuel leakage, rich running, or restricted fuel replenishment.
What Is Included
- Genuine Zenith float needle valve, size 175
- Sealing washer
- Made in Italy.
Important Fitment Note
Verify that your carburetor is a Zenith NDX or NDIX model and compare the original valve with MPN 1572 and size 175. Check the threaded body, inlet geometry, sealing washer arrangement, needle-to-seat interface, and overall valve profile against the removed part. Do not rely on carburetor family alone; confirm the marking, thread, seat style, and geometry before fitting.
What you see is what you get
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