Humvee HMMWV Fuel Tank Vent Valve | NSN 4820-01-210-3488 | P/N 346-786

Humvee HMMWV M998 Fuel Tank Vent Valve | NSN 4820-01-210-3488 | P/N 346-786

Replace a faulty or damaged fuel tank vent component with this genuine Humvee HMMWV Fuel Tank Vent Valve. Designed for military fuel system applications, this OEM valve helps maintain proper fuel tank venting and pressure regulation, supporting reliable vehicle operation and fuel system performance.

This vent valve is commonly used on HMMWV and Hummer H1 fuel tank assemblies and is ideal for maintenance, repair, restoration, and fleet support operations.

Product Specifications

• Part Number: 346-786
• NSN: 4820-01-210-3488
• Item Name: Fuel Tank Vent Valve
• Manufacturer: OEM Military Supplier
• Condition: Military Surplus OEM
• Application: Fuel Tank Vent System

Vehicle Compatibility

• HMMWV M998
• HMMWV M1025
• HMMWV M1038
• HMMWV M1097
• Hummer H1
• Other compatible HMMWV fuel tank applications

Features & Benefits

• Genuine OEM military fuel system component
• Designed to maintain proper fuel tank venting
• Helps regulate tank pressure during operation
• Direct replacement for compatible fuel tank assemblies
• Ideal for restoration and preventative maintenance
• Military-grade construction for long service life

Applications

Used in the fuel tank venting system of HMMWV and Hummer H1 vehicles. Proper vent valve operation helps maintain correct fuel tank pressure and supports efficient fuel system performance.

Important Note

Please verify the part number and application prior to ordering. Review all photos carefully to ensure compatibility with your specific vehicle configuration.