Glow Plugs

Glow Plugs
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  1. NGK Y1010AS / 97618 Glow Plug Sheathed
    £13.81 £11.51
  2. NGK Y1001J1 / 93034 Glow Plug Sheathed
    £9.39 £7.82
  3. NGK CZ267 / 90900 Glow Plug Ceramic
    £25.96 £21.63
  4. NGK CZ167 91063 Glow Plug Ceramic 7 Volt
    £21.76 £18.13
  5. NGK Y8003J / 90784 Glow Plug Sheathed
    £6.12 £5.10
  6. NGK Y-810 / 6929 Glow Plug Sheathed Y810
    £13.92 £11.60
  7. NGK Y-719RS1 / 6900 Glow Plug Sheathed Y719RS1
    £12.76 £10.63
  8. NGK Y-741U / 5065 Glow Plug Sheathed Y741U
    £6.59 £5.49
  9. NGK Y-605J / 4309 Glow Plug Sheathed Y605J
    £10.30 £8.58
  10. NGK Y-203 / 2532 Glow Plug Sheathed Y203
    £12.76 £10.63
  11. NGK Y-519J / 2500 Glow Plug Sheathed Y519J
    £13.04 £10.87
  12. NGK Y-106V / 6926 Glow Plug Sheathed Y106V
    £8.29 £6.91
  13. NGK CZ203 / 94339 Glow Plug Ceramic
    £35.04 £29.20
  14. Denso DG-653 Glow Plug DG653 4.4 V
    £14.41 £12.01
  15. Denso DG-661 Glow Plug DG661 11 V
    £26.50 £22.08
  16. Denso DG-621 Glow Plug DG621 4.4 V
    £10.88 £9.07
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Glow Plugs

Glow plugs are vital for efficient engine start-up; they emit heat in the combustion chamber to help your engine to start. 

Your vehicle needs up to ten glow plugs depending on make and model. 

Spark plugs are the equivalent car parts for petrol engines.  While petrol combusts with a spark, diesel combusts with hot, high-pressure air.

It is recommended that you check your glow plugs before winter, either annually or approximately every 50,000 miles.  Find your replacements using our car part finder before you get caught out one cold, wintery morning on your work commute.

If you need to replace one glow plug, replace them all so that their lifespans are equal.


How do I know that my glow plugs need to be replaced?

  • Engine start-up is slow.
  • You notice bulges, cracks, melting or other deformation of your glow plugs.
  • When you start your vehicle, your exhaust fumes are white.


Why do my glow plugs need to be replaced?

  • There is an issue with your fuel system or electric wiring.

Your glow plugs:

  • Are low-quality.
  • Are not intended for your vehicle.
  • Are mechanically damaged.
  • Have been used repeatedly over a number of years.


How do I replace my glow plugs?

Locate your glow plugs on top of the cylinder head and remove the wires from beneath the engine’s valve covers.  When you release the wires, you’ll need to detach a small nut that bonds each wire to a glow plug using a wrench and loosen each glow plug with a ratchet.  Secure replacements with a ratchet and re-attach the wires and nuts with a wrench.


Glow plug brands stocked by DIY Car Service Parts