Cooper Standard 310040885 5/16″ Nylon Fuel System Block-Off – Dorman 800-330 Replacement – 5 Pack

Cooper Standard 310040885 5/16″ Fuel System Block-Off – Dorman 800-330 Replacement

Need to cap an unused 5/16″ fuel or vapor connection without replacing the entire fuel line?

The 310040885 provides a practical replacement solution for applications using the Dorman 800-330 style fuel-system block-off. This nylon quick-connect component is designed for automotive fuel-system repair and service applications where an unused fuel or vapor port needs to be securely blocked.

Instead of replacing an entire fuel line or assembly, this small replacement component can help complete the repair quickly and economically.

Why Buy the 310040885?

• Direct replacement for Dorman 800-330 applications
• Designed for 5/16″ fuel-system connections
• Nylon construction for automotive fuel-system applications
• Useful for blocking unused fuel or vapor ports
• Helps avoid replacing an entire fuel-line assembly
• Excellent for repairs, restorations, and custom fuel-system work
• OEM supplier-quality component
• Convenient 5-piece pack
• Excellent alternative to more expensive individual replacement components

COMMON APPLICATIONS

The 310040885 is best suited for applications requiring a 5/16″ fuel-system block-off or cap.

Common uses include:

• Fuel-line repair
• Fuel-system service
• Blocking unused fuel ports
• Blocking unused fuel-vapor ports
• Fuel-line modifications
• Custom fuel-system installations
• Classic-car restoration
• Performance vehicle builds
• Automotive repair-shop applications
• Replacement of damaged or missing fuel-system connectors

NOT A VEHICLE-SPECIFIC FITMENT

This component should be selected based on the existing connector and fuel-system configuration rather than solely by year/make/model.

Always compare the existing connector and confirm the 5/16″ application before ordering.

This product is an application-based fuel-system component and should not be selected solely by vehicle year, make, or model. Confirm the existing connector, size, and fuel-system application before ordering.

Dorman 800-330 is provided as a cross-reference for identification purposes.