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NGK PTR5A-10 Platinum Spark Plug (5055)
RRP. £7.91£5.11SAVE £2.80 (35%)
NGK PTR5A-10 Spark Plug – Stock No. 5055
This NGK platinum spark plug delivers reliable ignition, clean combustion, and long service life. The fine platinum centre electrode needs less voltage to spark, which helps cold starts and stable idling. It resists wear better than standard copper plugs, so performance stays consistent for longer intervals.
It is a resistor-type plug to reduce electrical noise that can affect the radio or ECU. The preset 1.0 mm gap suits many modern petrol engines set up for this specification. Always check your vehicle’s handbook or use our vehicle lookup to confirm fitment.
- Platinum centre electrode for stable spark and longer life
- Resistor design to minimise electrical interference
- Tapered seat for a secure, gas-tight fit
| Part Number | PTR5A-10 |
| NGK Stock Number | 5055 |
| Part Category | 686 – Spark Plug |
| GTIN | 087295150559 |
| Plug Type | Platinum, resistor |
| Heat Range (NGK) | 5 |
| Thread Diameter | 14 mm |
| Reach (thread length) | 19 mm |
| Seat Type | Tapered |
| Hex Size | 16 mm |
| Spark Gap | 1.0 mm (preset) |
| Centre Electrode | Platinum tip |
| Ground Electrode | Nickel alloy |
Fitment guidance
This plug suits petrol engines that specify NGK PTR5A-10 with a 14 mm thread, 19 mm reach, and tapered seat. It is commonly found across various mainstream applications using a heat range 5 platinum resistor plug. Use the site’s vehicle lookup or check the Vehicle Fitment tab to confirm exact compatibility.
The price displayed is for a single plug, please add the desired amount to your basket.
Additional Information
| Weight | 0.05 kg |
|---|---|
| Dimensions | 10 × 3 × 3 cm |
| Brand |
NGK-5055 Confirmed Fitment
Please note, this information is a combination of supplier provided compatibility data and our workshop expertise. While every effort has been made to ensure the accuracy of this information Progressive Parts Ltd are not liable for abnormalities or inaccurate data. Customers are wholly responsible for checking fitment for their vehicle. More information is available from our Terms & Conditions
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Stock at Progressive Parts
Delivery timescales are given as estimates in good faith, but cannot be taken as precise or exact information. We highly advise against booking installation/workshop time or engaging in preparatory work until you've received and inspected the goods.
What do our stock statuses mean?
1+ IN STOCK in green stock is readily available in one of our warehouses for express delivery (at the time of viewing).
LOW STOCK in green means we're running low! 1 or 2 left on the shelf so act fast. Over evenings, weekends and bank holidays this stock can move quickly so please bear this in mind.
0 IN STOCK in blue means our primary warehouse does not have unallocated stock, but our UK partners do. Often these can be shipped quickly and efficiently. You'll be notified via the Track My Order page if further delays are unavoidable.
MADE TO ORDER in blue means we've partnered with a supplier which primarily makes their products to order. It's not on our shelf, but your order goes into production immediately.
0 IN STOCK in orange means everybody we work with is unfortunately out of stock. Stock is not available in the UK. The best course of action is to place an order to create an allocation from the next batch arriving.
OUT OF STOCK in red. This product is unavailable to order, for whatever reason we're unable to obtain stock or there is an issue with supply/lead times.
We're tuners too!
Our staff are car enthusiasts, we understand the need for speed... This includes getting your orders out the door as quickly and securely as possible!
In some instances, extended lead times are unavoidable. This is as labour-intensive and frustrating for us as it is for you, please know we are doing our best to facilitate your modification goals. Abuse of our staff or systems will not be tolerated.
Thank you, Team PP
In the words of the Vehicle Standards Agency (VCA), type approval provides "confirmation that production and samples of a design will meet specified performance standards".
For emissions components this encompasses noise, emissions and balanced back pressure, which have a strong influence on maintaining engine performance (power), and fuel efficiency. Type approval ensures that an aftermarket component will reach, or exceed the performance standard of the corresponding OE part.
Type-approval then, is a certain guarantee that an end user will receive a product of OE equivalent performance attributes.
Products on the Progressive Parts website that meet this approval will be clearly marked or labelled EC or ECE approved.