Bremi
Bremi Glow Plug

Bremi 25039 Diesel Glow Plug

Brand Bremi 25039
Product line Bremi Glow Plug
Fits Mercedes-Benz · 9 vehicles

Diesel glow plug. Provides reliable cold-start heating for diesel engines.

Bremi Glow Plug. Brand-specific ignition hardware for diesel applications.

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Bremi Glow Plug for Mercedes-Benz Diesel

The Bremi 25039 diesel glow plug is a direct-fit ignition hardware component for select Mercedes-Benz diesel engines. It is specified for 1975-1981 Mercedes-Benz 300D and 1980-1981 Mercedes-Benz 300TD applications with 11V operation, 16A current draw, a 5mm connection, 21mm hex, and 18mm thread.

Key Features

  • Bremi Glow Plug line for diesel engine starting support
  • 11V electrical specification with 16A current draw
  • 5mm connection for the listed Mercedes-Benz applications
  • 21mm hex and 18mm thread dimensions
  • Fits 1975-1981 Mercedes-Benz 300D, N/A
  • Fits 1980-1981 Mercedes-Benz 300TD, N/A

Detailed Description

Part number 25039 is a Bremi diesel glow plug built for the Mercedes-Benz 300D and Mercedes-Benz 300TD diesel platforms listed above. The Bremi Glow Plug product line focuses on ignition hardware for diesel cold-start systems, and this unit matches the stated voltage, amperage, connection size, hex size, and thread dimensions for the confirmed fitment. This part cross-references Bosch (e.g., 0250201039) for the same application.

Common Issues This Part Can Address

  • Hard starting in cold weather on diesel engines
  • Extended cranking before the engine fires
  • Uneven or incomplete preheating in the combustion chamber
  • Glow plug replacement for worn or failed diesel starting components

Installation Notes and Tips

Verify the vehicle’s electrical system and glow plug circuit before installation. Match the 11V specification, 5mm connection, 21mm hex, and 18mm thread to the removed part or service data for the listed Mercedes-Benz 300D and 300TD applications. Use proper torque and clean thread engagement to reduce the risk of damage during service.

Quality Assurance

Bremi manufactures ignition components for diesel applications, and part number 25039 is cataloged with exact fitment data for the listed Mercedes-Benz diesel models.

This part fits 9 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1981Mercedes-Benz300DN/A11V; 16A; 5mm Connection; 21mm Hex; 18mm Thread; Bremi Glow Plug
1981Mercedes-Benz300TDN/A11V; 16A; 5mm Connection; 21mm Hex; 18mm Thread; Bremi Glow Plug
1980Mercedes-Benz300DN/A11V; 16A; 5mm Connection; 21mm Hex; 18mm Thread; Bremi Glow Plug
1980Mercedes-Benz300TDN/A11V; 16A; 5mm Connection; 21mm Hex; 18mm Thread; Bremi Glow Plug
1979Mercedes-Benz300DN/A11V; 16A; 5mm Connection; 21mm Hex; 18mm Thread; Bremi Glow Plug
1978Mercedes-Benz300DN/A11V; 16A; 5mm Connection; 21mm Hex; 18mm Thread; Bremi Glow Plug
1977Mercedes-Benz300DN/A11V; 16A; 5mm Connection; 21mm Hex; 18mm Thread; Bremi Glow Plug
1976Mercedes-Benz300DN/A11V; 16A; 5mm Connection; 21mm Hex; 18mm Thread; Bremi Glow Plug
1975Mercedes-Benz300DN/A11V; 16A; 5mm Connection; 21mm Hex; 18mm Thread; Bremi Glow Plug