Standard Ignition RY-494 Fuel Pump Relay

Fuel Pump Relay for Volkswagen and Audi

Standard Ignition RY-494 is a 12-volt fuel pump relay built for select Volkswagen and Audi applications. It uses a 4-terminal blade design with a square connector shape and a 40 amp amperage rating for direct relay replacement in fuel delivery circuits.

Key Features

• Fuel pump relay for air and fuel delivery systems
• 12-volt electrical design
• 40 amp amperage rating
• 4 blade terminals with male terminal gender
• Square connector shape for the listed applications
• Contents: relay
• Standard Ignition RY-494

Detailed Description

This Standard Ignition RY-494 fuel pump relay is used in a wide range of Volkswagen Passat, Jetta, GTI, EuroVan, Cabrio, Corrado, Golf, and Audi A3, A4, TT, and A8 Quattro applications. It is also listed for 2009 Volkswagen Passat w/ Mexico Emissions, 2006 Volkswagen Jetta Code No. 433 under hood, and 2007 Audi A8 Quattro to VIN 4E-7-007 957 with 40 amp requirements. This part cross-references Davico Mfg 19447 for the same application.

Standard Ignition RY-494 is specified for vehicles that use a 4-terminal relay layout, including 2006-2008 Volkswagen Passat, 1999-2001 Volkswagen Jetta, and 1987 Volkswagen Golf with 4 blade terminals. It also appears in 2000-2006 Audi TT and TT Quattro, 2002-2005 Audi A4 and A4 Quattro, and 2006-2008 Audi A3 and A3 Quattro fitments.

What It Is Used For

• Fuel pump relay failure causing no-start conditions
• Intermittent fuel pump operation
• Fuel delivery loss while driving
• Relay-related stalling or crank-no-start symptoms
• Electrical switching issues in the fuel pump circuit

Installation Notes and Tips

Verify the relay cavity, terminal count, connector shape, and amperage rating before installation. Match the vehicle notes exactly, including under-hood placement, emissions package, VIN breakpoints, and 4-terminal requirements where listed. Confirm the relay is being replaced in a 12-volt system and inspect the socket for heat damage or loose terminals before installing the new relay.

Quality Assurance

Standard Ignition supplies this relay as a direct electrical replacement for the listed applications. The part number RY-494 is referenced across multiple interchange listings, supporting identification during service and repair.