Genuine 16121116966 Fuel Tank Sending Unit O-Ring

Fuel Tank Sending Unit O-Ring for BMW

This Genuine fuel tank sending unit O-ring, part number 16121116966, is a direct sealing component for BMW fuel pump and sending unit service. It is used to help maintain a secure seal at the tank opening on select BMW 528e, 535i, 635CSi, and other classic models.

Key Features

• Genuine replacement fuel tank sending unit O-ring
• Part number 16121116966 for accurate ordering and service matching
• Used as a pump seal at the fuel tank sending unit opening
• Compatible with select BMW 5 Series, 6 Series, and 7 Series applications
• Supports sealing during fuel pump or sender maintenance

Detailed Description

Built for BMW fuel system sealing service, this Genuine O-ring is specified for pump seal applications on select 1977-1989 BMW models. It is commonly used during fuel tank sending unit or fuel pump access work where a proper seal is needed to help prevent vapor or fuel seepage at the tank interface. The part number 16121116966 is the reference to use when matching the correct seal for these classic BMW applications.

Compatible With 1977-1978 BMW 530i, N/A; 1979-1981 BMW 528i, N/A; 1982-1988 BMW 528e, N/A; 1983-1984 BMW 533i, N/A; 1985-1986 BMW 735i, N/A; 1985-1987 BMW 535i, N/A; 1985-1989 BMW 635CSi, N/A; 1985 BMW 524td, N/A; 1987-1988 BMW M6, N/A; and 1988 BMW M5, N/A.

What It Helps Address

• Fuel odor around the tank sending unit opening
• Seepage at the fuel pump or sender seal area
• Seal deterioration during fuel system service
• Improper sealing after sender or pump removal
• Maintenance on aging BMW fuel tank components

Installation Notes and Tips

Inspect the sealing surface before installation and clean the tank opening thoroughly. Replace the O-ring whenever the fuel pump or sending unit is removed to help restore a proper seal. Verify the application by model year and use part number 16121116966 to confirm the correct BMW seal before reassembly.

Quality Assurance

Genuine OE-style replacement part for BMW fuel system sealing service. This part cross-references with BMW 16121116966 for the same application.