Glow Plugs

Glow Plugs

Glow plugs are heating elements of known resistance. They are introduced in the pre-combustion chamber in such a way that when heated the glow plug comes into contact with the cold fuel-air mixture pumped by the fuel injection system, the temperature increases, enabling the cold engine to achieve compression ignition.

Pencil-type Glow Plugs

Pencil-type Glow Plogs are much more efficient than Coil Type Glow Plugs. Depending on the alloying elements in the heating element, a Pencil-type Glow Plug attains the operating temperature of 8500C between 4 to 40 seconds.


Bosch Glow Plugs are available for a wide range of diesel engines using Indirect Injection and are made by using state-of-the-art technology from Bosch, Germany. Bosch Glow Plugs are manufactured using superior, patented Dual Coil technology that ensures quick glow with minimum current from the battery.

Quick start

Bosch Glow Plugs ensure quick starts all the time and in all climatic conditions, because they can attain the required temperature in minimum time. Depending on the type of glow plug, Bosch Glow Plugs attain temperatures of 8500C, in anywhere between 4 to 60 seconds.

Long Life

All Bosch Glow Plugs are nickel-coated which gives corrosion resistance tp the plugs, which in turn increases the life of the plugs.

Energy Saving

Bosch Glow Plugs use the patented Bosch Dual Coil technology for vehicles which require quick-start glow plugs. This Dual Coil technology enables the plug to provide the required temperature with minimum time and with minimum amount of current from the battery.


Bosch Glow Plugs have post-glow capability, which helps in a more complete and quieter combustion of the diesel fuel during the warm-up phase. The engine runs more smoothly right from the start and exhaust emission are considerably reduced.

Glow Control Unit

The Glow Control Unit is a modern electronic device that combines the functions of Glow Indicator, Glow Resistor and Glow Insulator.

  • Reverse polarity, short circuit and high-voltage protection
  • Reduces battery drainage, enhancing life of the glow plug
  • If engine operating temperature is not attained, automatically switches off supply to glow plug