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NGK IKR9J8 Iridium Spark Plug (93311)
RRP. £23.02£14.90SAVE £8.12 (35%)
NGK IKR9J8 Iridium Spark Plug – Stock No. 93311
This NGK iridium spark plug is built for reliable ignition under high load and high temperature. The fine-wire iridium tip needs less voltage to spark, which helps cold starts and keeps the spark stable at high rpm and under boost. A colder NGK heat range 9 helps control combustion temperatures on tuned engines, reducing the risk of knock and misfire.
Use one heat range colder than stock only when needed. Too cold for your setup can lead to fouling in daily driving.
| Part number | IKR9J8 |
| NGK stock number | 93311 |
| Category | 686 – Spark Plug |
| GTIN | 87295933114 |
| Design | Iridium centre, resistor type |
| Centre electrode | Fine-wire iridium (approx. 0.6 mm) |
| Ground electrode | Nickel alloy with platinum pad |
| Heat range (NGK) | 9 (colder than standard) |
| Thread diameter | M12 |
| Thread pitch | 1.25 |
| Reach (thread length) | 26.5 mm |
| Hex size | 14 mm |
| Seat type | Flat seat with gasket |
| Projection | Projected insulator |
| Resistor | Yes |
| Pre-set gap | 0.8 mm |
| Terminal | Solid terminal nut |
- Strong, consistent spark at high boost and high rpm.
- Colder heat range supports tuned engines and track use.
- Long service life from iridium and platinum-tipped electrodes.
Fitment guidance
Often chosen for modern turbo petrol engines that use M12 long-reach iridium plugs and need a colder heat range for tuning. Please use our vehicle lookup to confirm fitment, or see the Vehicle Fitment tab for full details.
Important: Always check the required heat range and gap for your engine and tune. Adjust gap only if the manufacturer or tuner specifies it. Install on a cold engine and torque to the engine maker’s spec.
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-93311 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
500 / 595 / 695 1.4 (312.AXD1A) (312 A1.000) | 135hp
Petrol 1368cc | Hatchback | 2008 - 2025
500 / 595 / 695 1.4 (312.AXF11, 312.AXF1A, 312.AXD1A) (312 A1.000/312 A3.000/312 B4.000) | 160hp
Petrol 1368cc | Hatchback | 2008 - 2025
500 / 595 / 695 1.4 (312.AXF11, 312.AXF1A) (312 A3.000/312 B3.000) | 180hp
Petrol 1368cc | Hatchback | 2008 - 2025
500 / 595 / 695 1.4 (312.AXF1A, 312.AXD1A) (312 A3.000) | 140hp
Petrol 1368cc | Hatchback | 2010 - 2025
500 / 595 / 695 1.4 (312.AXT1A) (312 A1.000/312 A9.000) | 190hp
Petrol 1368cc | Hatchback | 2008 - 2025
500 / 595 / 695 1.4 (312.AXY11, 312.AXY1A) (312 B4.000) | 145hp
Petrol 1368cc | Hatchback | 2016 - 2025
500 / 595 / 695 1.4 (312.AXZ11) (312 B3.000) | 165hp
Petrol 1368cc | Hatchback | 2016 - 2025
500 / 595 / 695 1.4 (312.AYB11, 312.AYB1A) (312 B6.000) | 163hp
Petrol 1368cc | Hatchback | 2016 - 2025
500C / 595C / 695C 1.4 (312.AXD1A) (312 A1.000) | 135hp
Petrol 1368cc | Convertible | 2008 - 2025
500C / 595C / 695C 1.4 (312.AXF11, 312.AXF1A) (312 A3.000) | 180hp
Petrol 1368cc | Convertible | 2010 - 2025
500C / 595C / 695C 1.4 (312.AXF1A, 312.AXD1A) (312 A1.000/312 A3.000/312 B4.000) | 160hp
Petrol 1368cc | Convertible | 2011 - 2025
500C / 595C / 695C 1.4 (312.AXF1A, 312.AXF11, 312.AXD1A) (312 A1.000/312 A3.000) | 140hp
Petrol 1368cc | Convertible | 2009 - 2025
500C / 595C / 695C 1.4 (312.AXY1A, 312.AXY11) (312 B4.000) | 145hp
Petrol 1368cc | Convertible | 2016 - 2025
500C / 595C / 695C 1.4 (312.AXZ1A) (312 B3.000) | 165hp
Petrol 1368cc | Convertible | 2016 - 2025
GRANDE PUNTO 1.4 (199.AXN1B) (199 A8.000) | 155hp
Petrol 1368cc | Hatchback | 2007 - 2010
GRANDE PUNTO 1.4 ESSEESSE / SUPERSPORT (199.AXX1B) (199 A8.000) | 180hp
Petrol 1368cc | Hatchback | 2008 - 2010
PUNTO 1.4 SUPERSPORT (199.AXX1B) (955 A8.000) | 180hp
Petrol 1368cc | Hatchback | 2012 - 2025
PUNTO EVO 1.4 (199.AXX1B) (955 A8.000) | 163hp
Petrol 1368cc | Hatchback | 2009 - 2012
GIULIETTA (940_) 1.4 BiFuel (940FXA1A, 940FXT1A) (198 A4.000) | 120hp
Petrol/Liquified Petroleum Gas (LPG) 1368cc | Hatchback | 2011 - 2017
GIULIETTA (940_) 1.4 TB (940.FYA1A) (940 C2.000) | 150hp
Petrol 1368cc | Hatchback | 2014 - 2018
GIULIETTA (940_) 1.4 TB (940FXA1A, 940FXT1A) (198 A4.000/940 B7.000) | 120hp
Petrol 1368cc | Hatchback | 2010 - 2020
GIULIETTA (940_) 1.4 TB (940FXB1A, 940FXB11) (940 A2.000) | 170hp
Petrol 1368cc | Hatchback | 2010 - 2018
GIULIETTA (940_) 1.4 TB (940FXF1A) (940 A6.000) | 116hp
Petrol 1368cc | Hatchback | 2010 - 2016
GIULIETTA (940_) 1.4 TB (940FXG1A) (955 A8.000) | 163hp
Petrol 1368cc | Hatchback | 2010 - 2018
GIULIETTA (940_) 1.4 TB (940FXN1A, 940FXU1A) (940 B1.000/940 B8.000) | 105hp
Petrol 1368cc | Hatchback | 2011 - 2017
MITO (955_) 1.4 Bifuel (955.AXG1A) (198 A4.000) | 120hp
Petrol/Compressed Natural Gas (CNG) 1368cc | Hatchback | 2016 - 2018
MITO (955_) 1.4 Bifuel (955AXG1A) (198 A4.000) | 120hp
Petrol/Liquified Petroleum Gas (LPG) 1368cc | Hatchback | 2009 - 2016
MITO (955_) 1.4 MultiAir (955AXN1B) (940 A2.000) | 170hp
Petrol 1368cc | Hatchback | 2009 - 2018
MITO (955_) 1.4 TB (955.AYB11, 955.AXB1B) (955 B1.000) | 140hp
Petrol 1368cc | Hatchback | 2013 - 2018
MITO (955_) 1.4 TJet (955AXA1B) (199 A8.000) | 155hp
Petrol 1368cc | Hatchback | 2008 - 2011
MITO (955_) 1.4 TJet (955AXG1A) (198 A4.000) | 120hp
Petrol 1368cc | Hatchback | 2008 - 2013
MITO (955_) 1.4 Turbo MultiAir (955AXM1A, 955AXR11) (955 A2.000/955 A7.000) | 135hp
Petrol 1368cc | Hatchback | 2009 - 2014
MITO (955_) 1.4 Turbo MultiAir (955AXS1B, 955AXS11) (955 A8.000) | 163hp
Petrol 1368cc | Hatchback | 2009 - 2018
DELTA 1.4 (198 A4.000) | 120hp
Petrol 1368cc | Hatchback | 2011 - 2025
DELTA 1.4 16V (198 A7.000) | 140hp
Petrol 1368cc | Hatchback | 2011 - 2025
500L (351_, 352_) 1.4 (199LYF1B) (940 B7.000) | 120hp
Petrol 1368cc | Hatchback | 2013 - 2025
500L (351_, 352_) 1.4 LPG (199LYF1B) (940 B7.000) | 120hp
Petrol/Liquified Petroleum Gas (LPG) 1368cc | Hatchback | 2014 - 2025
500X (334_) 1.4 (334AXC1B, 334AXC11) (552 63 624) | 140hp
Petrol 1368cc | SUV | 2014 - 2025
500X (334_) 1.4 (334AXC1B) (552 63 624) | 136hp
Petrol 1368cc | SUV | 2014 - 2025
500X (334_) 1.4 4x4 (334AXF22) (552 63 623) | 163hp
Petrol 1368cc | SUV | 2015 - 2018
500X (334_) 1.4 4x4 (334AXF22) (552 63 623) | 170hp
Petrol 1368cc | SUV | 2015 - 2025
500X (334_) 1.4 LPG (334AXL1B) (552 77 701) | 120hp
Petrol/Liquified Petroleum Gas (LPG) 1368cc | SUV | 2017 - 2018
BRAVO II (198_) 1.4 16V (198AXS1B) (198 A7.000) | 140hp
Petrol 1368cc | Hatchback | 2010 - 2014
BRAVO II (198_) 1.4 T-Jet (198AXF1B) (198 A1.000) | 150hp
Petrol 1368cc | Hatchback | 2007 - 2014
BRAVO II (198_) 1.4 T-Jet (198AXG1B) (198 A4.000) | 120hp
Petrol 1368cc | Hatchback | 2007 - 2014
DOBLO Cargo (263_) 1.4 (198 A4.000) | 120hp
Petrol 1368cc | Box Body/MPV | 2011 - 2023
DOBLO Cargo (263_) 1.4 Natural Power (198 A4.000) | 120hp
Petrol/Compressed Natural Gas (CNG) 1368cc | Box Body/MPV | 2010 - 2023
DOBLO Platform/Chassis (263_) 1.4 (198 A4.000) | 120hp
Petrol 1368cc | Platform/Chassis | 2011 - 2023
DOBLO Platform/Chassis (263_) 1.4 Natural Power (198 A4.000) | 120hp
Petrol/Compressed Natural Gas (CNG) 1368cc | Platform/Chassis | 2010 - 2023
GRANDE PUNTO (199_) 1.4 T-Jet (199AXM1A, 199BXM1A, 199BXN1A) (198 A4.000) | 120hp
Petrol 1368cc | Hatchback | 2007 - 2025
LINEA (323_, 110_) 1.4 T-Jet (323AXC1A) (198 A4.000) | 120hp
Petrol 1368cc | Saloon | 2007 - 2025
PUNTO (199_) 1.4 Turbo Multi Air (955 A2.000) | 135hp
Petrol 1368cc | Hatchback | 2012 - 2025
PUNTO EVO (199_) 1.4 16V (199AXW1A) (955 A2.000) | 135hp
Petrol 1368cc | Hatchback | 2009 - 2012
TIPO Estate (356_, 357_) 1.4 (356WXF1B) (940 B7.000) | 120hp
Petrol 1368cc | Estate | 2016 - 2020
TIPO Estate (356_, 357_) 1.4 LPG (356WXF1B) (940 B7.000) | 120hp
Petrol/Liquified Petroleum Gas (LPG) 1368cc | Estate | 2016 - 2020
TIPO Hatchback (356_, 357_) 1.4 (356HXF1B) (940 B7.000) | 120hp
Petrol 1368cc | Hatchback | 2016 - 2020
TIPO Hatchback (356_, 357_) 1.4 LPG (356HXF1B) (940 B7.000) | 120hp
Petrol/Liquified Petroleum Gas (LPG) 1368cc | Hatchback | 2016 - 2020
TIPO Saloon (356_, 357_) 1.4 LPG (356SXF1B) (940 B7.000) | 120hp
Petrol/Liquified Petroleum Gas (LPG) 1368cc | Saloon | 2016 - 2020
COMPASS (MP, M6, MV, M7) 1.4 MultiAir 4x4 (552 63 623/EAQ) | 170hp
Petrol 1368cc | SUV | 2017 - 2025
RENEGADE SUV (BU, B1, BV) 1.4 (552 63 624/EAM) | 140hp
Petrol 1368cc | SUV | 2014 - 2018
RENEGADE SUV (BU, B1, BV) 1.4 4x4 (552 63 623/EAM) | 170hp
Petrol 1368cc | SUV | 2014 - 2018
DELTA III (844_) 1.4 16V (844.AXL1A) (198 A7.000) | 140hp
Petrol 1368cc | Hatchback | 2010 - 2014
COMBO Box Body/MPV (X12) 1.4 (B05) (A 14 FC) | 120hp
Petrol 1368cc | Box Body/MPV | 2012 - 2025
COMBO Box Body/MPV (X12) 1.4 CNG (B05) (A 14 FC) | 120hp
Petrol/Compressed Natural Gas (CNG) 1368cc | Box Body/MPV | 2012 - 2025
COMBO Tour (X12) 1.4 (C26, D26, E26, C06) (A 14 FC) | 120hp
Petrol 1368cc | MPV | 2012 - 2025
COMBO Tour (X12) 1.4 CNG (C26, D26, E26, C05) (A 14 FC) | 120hp
Petrol/Compressed Natural Gas (CNG) 1368cc | MPV | 2012 - 2025
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.