Mahle GS33712 Fuel Line

Fuel Rail Supply Line for Ford Super Duty

The Mahle GS33712 is a stainless steel fuel line built for high-pressure fuel delivery in select Ford Super Duty applications. It is specified as an OEM standard replacement with a 32-inch overall length, 0.119-inch inside diameter, and 0.260-inch outside diameter.

Compatible with 2011-2018 Ford F-250 Super Duty and 2011-2018 Ford F-350 Super Duty high pressure fuel rail supply tube applications, this part also fits 2019 Ford F-250 Super Duty and 2019 Ford F-350 Super Duty steel fuel line applications. The GS33712 is a direct-fit fuel rail supply line solution for diesel fuel system service where correct routing and pressure capacity matter.

Key Features

• Mahle Fuel Line, part number GS33712
• Stainless steel construction for fuel system durability
• OEM standard grade for direct replacement service
• 32-inch overall length with 17 mm fitting and 1.5 mm thread pitch
• 0.119-inch inside diameter and 0.260-inch outside diameter
• Maximum pressure rating of 29,000
• Includes fuel rail supply line

Product Details

Mahle Fuel Line GS33712 is engineered as a fuel rail supply line for Ford Super Duty trucks that use a high-pressure steel fuel line configuration. Mahle is known for sealing and engine management components used by OEMs and technicians worldwide, and this fuel line follows that OE-focused approach with stainless steel construction and standard-grade specifications. If you are replacing a worn, corroded, or leaking supply tube on a Ford F-250 Super Duty or Ford F-350 Super Duty, the GS33712 provides the correct dimensions and fitting style for the listed applications.

This part cross-references Ford BC3Q-9E964-BA and BC3Z-9E964-A for the same application.

Common Issues This Part Can Address

• Fuel seepage from a damaged high-pressure supply tube
• Corrosion on the original steel fuel line
• Incorrect line length or fitting mismatch during repair
• Restricted fuel delivery caused by a compromised line
• Service replacement for a worn fuel rail supply tube

Installation Notes and Tips

Verify the fitting size, thread pitch, and line routing against the original part before installation. Confirm the vehicle application by year and fuel system configuration, especially on 2011-2018 Ford F-250 Super Duty and Ford F-350 Super Duty models. Clean the connection points and inspect adjoining fuel system components for wear or contamination before installing the new line.

Quality Assurance

Mahle supplies OEM-standard fuel system components trusted by technicians and vehicle manufacturers. GS33712 is built to match the listed Ford Super Duty applications with stainless steel construction and fuel system-specific dimensions for service replacement use.