HomeEmission Control > RelaysHitachi GLP2104 Diesel Glow Plug Relay
Part #: GLP2104

Hitachi GLP2104 Diesel Glow Plug Relay

⚙️ 21 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Volkswagen, Beetle, Golf, and Jetta
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Reliable Diesel Glow Plug Relay for Volkswagen Vehicles

The Hitachi GLP2104 diesel glow plug relay is designed to ensure efficient glow plug operation in select Volkswagen models. This relay supports the proper functioning of the glow plugs, which are essential for cold starts in diesel engines.

  • Manufacturer: Hitachi
  • Part Number: GLP2104
  • Category: Emission Control > Relays
  • Compatible with Volkswagen Beetle, Golf, and Jetta diesel models
  • Ensures reliable glow plug circuit control

Product Details and Specifications

The Hitachi GLP2104 diesel glow plug relay is engineered to meet the specific electrical requirements of Volkswagen diesel engines. This relay controls the power supply to the glow plugs, allowing them to heat up quickly and maintain the necessary temperature for optimal engine starting performance. Designed with precision, the GLP2104 supports emission control by enabling efficient combustion during cold starts. Its compatibility with Volkswagen Beetle, Golf, and Jetta models ensures a proper fit and function within these vehicles' diesel systems.

Applications and Problem Resolution

This diesel glow plug relay is used primarily in the glow plug circuit of Volkswagen diesel engines. It addresses several common issues, including:

  • Difficulty starting the engine in cold weather
  • Glow plug circuit failure or intermittent operation
  • Extended glow plug activation times
  • Engine misfires related to glow plug malfunction
  • Emission control system irregularities due to faulty relay

Installation Notes and Tips

When installing the Hitachi GLP2104 relay, ensure the vehicle’s ignition is off and the battery is disconnected to prevent electrical shorts. Verify compatibility with your Volkswagen Beetle, Golf, or Jetta diesel model before installation. Properly secure the relay in its designated socket and check all electrical connections for corrosion or damage. After installation, test the glow plug system to confirm correct operation.

Quality Assurance and Warranty

Hitachi manufactures the GLP2104 diesel glow plug relay to meet stringent quality standards. While specific warranty details are not provided here, Hitachi products typically undergo rigorous testing to ensure durability and reliable performance in emission control applications.

BrandHitachi
Part NumberGLP2104
ManufacturerHitachi

This part fits 21 vehicles. Search below:

YearMakeModelSubmodelBody TypeLitersCylindersFuel TypePositionNotes
2005VolkswagenGolfTDIHatchback1.9LL4DIESELN/AAvailability: Available to Order; To Chassis/VIN 1J-54033 907
2005VolkswagenJettaGLS TDIWagon1.9LL4DIESELN/AAvailability: Available to Order
2005VolkswagenJettaGL TDIWagon1.9LL4DIESELN/AAvailability: Available to Order
2004VolkswagenGolfGLS TDIHatchback1.9LL4DIESELN/AAvailability: Available to Order
2004VolkswagenGolfGL TDIHatchback1.9LL4DIESELN/AAvailability: Available to Order
2004VolkswagenJettaTDIWagon1.9LL4DIESELN/AAvailability: Available to Order
2003VolkswagenBeetleGLSHatchback1.9LL4DIESELN/AAvailability: Available to Order
2003VolkswagenBeetleGLSConvertible1.9LL4DIESELN/AAvailability: Available to Order
2003VolkswagenBeetleGLHatchback1.9LL4DIESELN/AAvailability: Available to Order
2003VolkswagenBeetleGLConvertible1.9LL4DIESELN/AAvailability: Available to Order
2003VolkswagenGolfGLSHatchback1.9LL4DIESELN/AAvailability: Available to Order
2003VolkswagenGolfGLHatchback1.9LL4DIESELN/AAvailability: Available to Order
2003VolkswagenJettaTDIWagon1.9LL4DIESELN/AAvailability: Available to Order
2003VolkswagenJettaTDISedan1.9LL4DIESELN/AAvailability: Available to Order
2002VolkswagenBeetleSportHatchback1.9LL4DIESELN/AAvailability: Available to Order
2002VolkswagenBeetleGLSHatchback1.9LL4DIESELN/AAvailability: Available to Order
2002VolkswagenBeetleGLHatchback1.9LL4DIESELN/AAvailability: Available to Order
2002VolkswagenGolfGLSHatchback1.9LL4DIESELN/AAvailability: Available to Order
2002VolkswagenGolfGLHatchback1.9LL4DIESELN/AAvailability: Available to Order
2002VolkswagenJettaTDIWagon1.9LL4DIESELN/AAvailability: Available to Order
2002VolkswagenJettaTDISedan1.9LL4DIESELN/AAvailability: Available to Order

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

038907281A132104

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.