Astra H Spark Plugs
Replacement spark plugs — fitment, symptoms & live UK prices.
Fits Astra H — check your reg/VIN to confirm
From £10.05 · 6 live listings on eBay
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Spark Plugs Set 4x fits VAUXHALL ASTRA H, J 1.4 1.6 1.8 2004 on Denso 1214016
£10.05View ›
4x Opel Astra H 1.8 Genuine Bosch Super Plus Spark Plugs
£10.92View ›
4x Opel Astra H 1.8 Genuine Bosch Super Plus Spark Plugs
£10.92View ›
4x Opel Astra H 1.6 Genuine Bosch Super Plus Spark Plugs
£10.92View ›
Spark Plugs Set 4x fits VAUXHALL ASTRA G, H, J 1.4 1.6 1.8 2.0 2000 on Bosch New
£12.94View ›
Spark Plugs Set 4x fits VAUXHALL ASTRA G, H, J 1.4 1.6 1.8 2.0 2000 on Bosch New
£17.02View ›
Will it fit my Astra H?
Petrol only. Gap, heat range and thread length are engine-specific — the wrong plug can misfire or, in the worst case, contact the piston.
Tip: filter by your reg on eBay's compatibility check, or match the part number stamped on your old unit.
Signs your Astra H spark plugs needs replacing
- Misfire or rough idle
- Poor economy or sluggish acceleration
- Difficulty starting
- Engine warning light, misfire code
Fitting it yourself
Usually one of the easier jobs — coil packs off, plugs out with a spark plug socket. Don't over-tighten into an alloy head.
Torque: Typically 20–30 Nm depending on plug/head — over-tightening can strip the thread.
See Spark Plugs prices on eBayMore Astra H parts
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