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NGK Spark Plug
173171

NGK Spark Plug
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5 purchases during last 48 hours
Please enter your vehicle registration and location to check product suitability and availability.

NGK Spark Plug
173171

£3.59

+ Extra 10% off when you spend £30
Use code: MOTORING10

Only £3.41 with Motoring Club premium

NGK Spark Plug

Spark plugs ignite the air/fuel mixture of a spark ignition engine and play a vital role in producing maximum power whilst keeping fuel consumption and emissions to a minimum.As a general rule, spark plugs should be checked during services and replaced as necessary but check with your vehicle manufacturer's service schedule as some higher-end spark plugs have a longer life.Over time spark plug electrodes can wear down, crack, corrode and become coated in deposits, causing misfires. If the car is running rough, replacing the spark plugs is an inexpensive first step that will usually solve the problem.There are a variety of plug types made to suit different vehicle designs and models. Spark plugs for your car must be the proper size and shape to fit the head opening, and reach the correct depth into the cylinder.

If you need to return an item we'll happily offer a refund as long as this is within 28 days of delivery, in its original packaging and you have proof of purchase.

There are several easy ways to return your item(s):

  • FREE in-store returns*
  • by post

You can return an item for FREE to a Retail store, but if you choose to return by post you'll need to cover the cost of postage.  However, if the item you're returning is faulty we'll refund the postage once we've received the item and checked the fault.  

For more information on our Returns Information, including our Courier service, please visit: Returns Information | Halfords UK

Print a returns note form here.

* Please don’t forget your proof of purchase. We may need to verify the serial number on your receipt against the serial number on the item being returned.