Standard Ignition RY-584 Diesel Glow Plug Relay

Diesel Glow Plug Relay for Volkswagen Jetta

Standard Ignition RY-584 is a 12-volt diesel glow plug relay built for controlled glow plug operation in diesel starting systems. It is a direct-fit electrical relay for 1993-1998 Volkswagen Jetta applications with a 4-terminal configuration.

Key Features

• Diesel glow plug relay function for 12-volt systems
• 40 amp amperage rating for glow plug circuit control
• 4 male blade terminals with square connector shape
• Male connector design with 4 connector cavities
• Relay only construction
• Standard Ignition RY-584 replacement part

Product Details

Standard Ignition RY-584 is an emission control relay used to manage glow plug power delivery during diesel engine startup. It is specified with a 40 A amperage rating, 12 V electrical system compatibility, and a square 4-terminal connector layout. This part cross-references Four Seasons 20287 for the same application. For Volkswagen Jetta diesel service, RY-584 provides the relay function needed to switch current to the glow plug circuit in the correct electrical format.

Common Problems This Part May Address

• Hard diesel starting in cold weather
• Glow plugs not receiving power at key-on
• Intermittent glow plug relay operation
• Extended crank time on Volkswagen Jetta diesel models
• Electrical relay failure in the glow plug circuit

Installation Notes and Tips

Fits 1993-1998 Volkswagen Jetta, N/A. Verify the 4-terminal connector style, male blade terminals, and 12-volt system before installation. Compare the original relay connector shape and terminal layout to confirm proper replacement. Standard Ignition RY-584 is not listed with a mounting bracket.

Quality Assurance

Standard Ignition is a recognized aftermarket source for electrical and emission control components. RY-584 is built to match the specified relay function and connector configuration for the listed Volkswagen Jetta diesel applications.