Spectra LO203 Direct Injection High Pressure Fuel Pump O-Ring

Spectra LO203 Fuel Pump O-Ring

The Spectra LO203 direct injection high pressure fuel pump O-ring is a replacement sealing component for select Audi direct injection fuel systems. It is built to match or exceed original equipment performance standards for the applications listed below.

Key Features

• Direct injection high pressure fuel pump O-ring for fuel system sealing
• OE-style replacement for Audi direct injection applications
• Manufactured with Spectra engineering and quality control processes
• Fits a wide range of Audi A4, A5, A6, Q5, Q7, S4, S5, and related models
• Part number LO203 for catalog and service reference

Detailed Description

Use the Spectra LO203 when servicing the high pressure fuel pump seal on compatible Audi direct injection engines. This O-ring helps maintain a proper seal at the pump interface, which is critical for fuel pressure retention and clean operation in direct injection systems. This part cross-references Standard Ignition GDR601 for the same application. The LO203 is listed for applications including 2005-2015 Audi A4, 2005-2015 Audi A4 Quattro, 2008-2015 Audi A5 Quattro, 2006-2014 Audi A6, and 2009-2015 Audi Q5.

What It Helps Address

• Fuel seepage at the high pressure fuel pump seal
• Loss of sealing integrity during fuel pump service
• Hard starting caused by a compromised pump seal
• Fuel odor from a leaking direct injection pump connection
• Pressure loss at the pump-to-engine sealing point

Installation Notes and Tips

Inspect the pump bore and sealing surface before installation. Clean all mating surfaces thoroughly and replace the O-ring during fuel pump service to avoid reusing a worn seal. Verify the application by year, make, and model before ordering. Fits 2005-2015 Audi A4, N/A; Fits 2005-2015 Audi A4 Quattro, N/A; Fits 2008-2015 Audi A5 Quattro, N/A; Fits 2006-2014 Audi A6, N/A; Fits 2009-2015 Audi Q5, N/A.

Quality Assurance

Spectra states that its engineering, manufacturing technology, and quality control are used to produce direct injection high pressure fuel pump O-rings that meet or exceed original equipment performance for the listed applications.