Take full control of your fuel flow with the Universal Parts M10x1.25 Manual Fuel Valve Petcock. A robust alternative to temperamental vacuum-style petcocks, this manual valve threads directly into standard M10x1.25 tank bungs and gives you a simple, reliable On/Off lever to prevent carburetor flooding and fuel leaks during storage. Ideal for vintage mopeds, motorized bicycle builds, pit bikes, and small engines.
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M10x1.25 Male Thread: Standard metric thread for a secure, leak-free connection to integrated tank bungs or fuel manifolds
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Built-In Micron Screen Strainer: Captures sediment and debris before it reaches your carburetor, protecting against clogs
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Manual On/Off Lever: Tactile click-into-position action — easy to verify fuel status even with riding gloves on
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Zinc-Alloy Body and O-Ring: Fuel-resistant construction designed to withstand long-term exposure to ethanol-blended gasoline without degradation
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6mm Barbed Outlet: Fits standard 1/4" fuel line
Features
- M10x1.25 male thread — secure, leak-free connection to standard tank bungs
- Built-in micron screen strainer — captures sediment before it reaches the carburetor
- Manual On/Off lever — tactile click-into-position, easy to verify with gloves on
- Zinc-alloy body — fuel-resistant, withstands ethanol-blended gasoline
- 6mm barbed fuel outlet — fits standard 1/4" fuel line
Specifications
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Mounting Thread: M10x1.25 (Male)
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Outlet Diameter: 6mm (fits 1/4" fuel line)
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Valve Type: Manual (On / Off)
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Total Length: Approx. 55mm (excluding filter screen)
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Body Material: Zinc alloy
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MPN / SKU: 129-2
Mechanic’s Note: Do not over-tighten the threaded mount — this can crush the internal gasket or strip the tank bung. Use a small amount of fuel-resistant thread sealant or a fresh crush washer for a vapor-tight seal.
California Prop 65 Warning: www.p65warnings.ca.gov
Model Fitment
Universal fit for M10x1.25 tank bungs across a wide range of small-engine platforms:
| Vehicle Category |
Common Applications |
| Vintage Mopeds |
Select Motobecane, Peugeot, and Puch models with M10 bungs |
| Motorized Bicycles |
Standard 49cc, 66cc, and 80cc 2-stroke frame-mount engine kits |
| Off-Road & Pit Bikes |
Small-displacement Chinese pit bikes and youth ATVs |
| Small Engines |
Generators, pressure washers, and tillers requiring an M10 fuel tap |