Delphi FT4123 Fuel Transfer Unit - Left or Right

Fuel Transfer Unit Overview

The Delphi FT4123 fuel transfer unit is an in-tank gas fuel delivery component built for specific Volkswagen and Audi applications. It uses a plastic housing, nylon hose material, and a male blade terminal layout with a square connector shape for a direct-style fuel system service part.

Compatible With 2004 Volkswagen R32, right, and 2000-2002 Audi TT Quattro, left. The FT4123 is a fuel transfer unit for gas applications and uses a female quick-connect outlet design with two outlets.

Key Features

• In-tank fuel transfer unit for gas fuel systems
• Plastic housing with nylon hose material
• Female quick-connect outlet design with two outlets
• Male blade terminals with a square connector shape
• Resistance range listed at 26.0 ohms empty and 134.0 ohms full
• Delphi FT4123 fuel transfer unit for targeted OE-style service

Detailed Description

Delphi FT4123 is engineered as an in-tank fuel transfer unit for select Volkswagen and Audi fuel systems. The unit is configured for gas applications and includes a plastic housing, nylon hose material, and a two-terminal blade connection. Its outlet design uses female quick-connect fittings, and the resistance values are listed at 26.0 ohms empty and 134.0 ohms full. This part cross-references Volkswagen/Audi OE numbers 8L9 919 673 G and 8L9 919 673 J for the same application.

Fits 2004 Volkswagen R32, right, and 2000-2002 Audi TT Quattro, left. Use the FT4123 when replacing a fuel transfer unit that matches the listed connector, outlet, and in-tank configuration. Delphi FT4123 is backed by Delphi's long history as a Tier 1 fuel system supplier with extensive OE fuel technology experience.

Common Replacement Issues

• Fuel delivery problems caused by a worn in-tank transfer unit
• Electrical connection issues at the blade terminal interface
• Outlet connection mismatch on the fuel module assembly
• Incorrect resistance readings from the fuel level transfer circuit

Installation Notes

Verify the vehicle application, position, connector shape, terminal count, and outlet style before installation. Confirm that the in-tank configuration matches the original part and compare the resistance specifications to the removed unit. Position-specific fitment is listed for the applications shown, so match the part to the correct side before service.

Quality Assurance

Delphi has supplied fuel delivery components to global vehicle manufacturers for more than 80 years and holds extensive OE fuel technology patents. The FT4123 reflects that OE-focused engineering background for fuel system replacement work.