Hitachi GLP2104 Diesel Glow Plug Relay

Hitachi GLP2104 Diesel Glow Plug Relay

The Hitachi GLP2104 diesel glow plug relay is built for vehicles that need reliable cold-start control and stable electrical performance under demanding underhood conditions. It is a direct-fit emission control relay for select Volkswagen diesel applications, including Golf, Jetta, and Beetle models.

Use the GLP2104 when you need a replacement glow plug relay that matches the vehicle’s original electrical function and fitment requirements. This part number is also referenced as 132104 and 038907281A for the same application.

Key Features

• Diesel glow plug relay for emission control systems
• Built with quality components for underhood temperature and vibration exposure
• Direct replacement fitment for select Volkswagen diesel models
• Hitachi part number GLP2104 for accurate catalog matching
• Cross-reference part numbers: 132104, 038907281A

Fitment Details

• Fits 2005 Volkswagen Golf, N/A. Availability note: Available to Order; To Chassis/VIN 1J-54033 907.
• Fits 2002-2005 Volkswagen Jetta, N/A.
• Fits 2002-2004 Volkswagen Golf, N/A.
• Fits 2002-2003 Volkswagen Beetle, N/A.

What This Relay Helps Address

• Hard starting during cold weather
• Glow plug circuit relay failure
• Intermittent glow plug operation
• Diesel starting delays after key-on
• Electrical control issues in the glow plug system

Installation Notes and Tips

Verify the part number, vehicle year, and chassis/VIN note before ordering. For 2005 Volkswagen Golf applications, confirm the chassis/VIN break listed in the fitment data. Inspect the glow plug circuit, connectors, and related wiring before installing the replacement relay.

Quality Assurance

Hitachi positions this relay as a quality-component replacement for diesel glow plug control in demanding engine-bay conditions. The GLP2104 is built to support the original relay function on the listed Volkswagen Golf, Jetta, and Beetle diesel applications.