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NGK SIZKBR8B8HG Laser Iridium Spark Plug (91874)
£13.93 Original price was: £13.93.£9.88Current price is: £9.88.
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Estimated dispatch: 1-4 weeks
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NGK SIZKBR8B8HG Spark Plug – Stock No. 91874
This NGK high-performance iridium spark plug is designed for reliable ignition under hard use. It delivers a strong, consistent spark for smoother idle, clean combustion, and dependable power. Built for modern turbo petrol engines and tuned applications, it resists fouling and maintains its gap over a long service life.
Why choose this plug
- Iridium centre electrode for a sharp, stable spark and long life
- Platinum-tipped ground electrode for durability and consistent gap
- Resistor design to reduce electrical noise that can affect the ECU
- Heat range 8 for performance and high-load conditions
| Part Number | SIZKBR8B8HG |
| NGK Stock Number | 91874 |
| GTIN | 87295918746 |
| Category | 686 – Spark Plug |
| Thread Diameter | M14 x 1.25 |
| Reach (thread length) | 26.5 mm |
| Hex Size | 16 mm (bi-hex) |
| Seat Type | Flat seat with gasket |
| Heat Range | 8 (NGK scale) |
| Resistor | Yes |
| Centre Electrode | Iridium tip |
| Ground Electrode | Platinum pad |
| Factory Gap | 0.8 mm (check and adjust only if specified by the vehicle manufacturer) |
| Terminal Type | Solid terminal |
| Tip Projection | Projected |
Fitment guidance
Use the vehicle lookup on our site or check the Vehicle Fitment tab to confirm compatibility with your engine.
Installation notes: Always install on a cold engine. Apply no anti-seize unless specified by the manufacturer. Torque to the vehicle’s specification (typical NGK guidance for M14 gasket seat is 18-25 Nm). Re-check coil connections after fitting.
The price displayed is for a single plug, please add the desired amount to your basket.
| Weight | 0.05 kg |
|---|---|
| Dimensions | 10 × 3 × 3 cm |
| Brand |
NGK-91874 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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3 (F30, F80) M3 (S55 B30 A) | 431hp
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3 (F30, F80) M3 Competition (S55 B30 A) | 450hp
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4 Coupe (F32, F82) M4 CS (S55 B30 A) | 460hp
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6 Convertible (F12) M6 (S63 B44 B) | 560hp
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6 Convertible (F12) M6 Competition (S63 B44 B) | 600hp
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6 Coupe (F13) M6 (S63 B44 B) | 560hp
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6 Coupe (F13) M6 Competition (S63 B44 B) | 575hp
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6 Coupe (F13) M6 Competition (S63 B44 B) | 600hp
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6 Gran Coupe (F06) M6 (S63 B44 B) | 560hp
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6 Gran Coupe (F06) M6 Competition (S63 B44 B) | 600hp
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6 Gran Coupe (F06) M6 Competition (S63 B44 B) | 575hp
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Petrol 2979cc | SUV | 2015 - 2018
X5 (F15, F85) M (S63 B44 B) | 575hp
Petrol 4395cc | SUV | 2014 - 2018
X6 (F16, F86) M (S63 B44 B) | 575hp
Petrol 4395cc | SUV | 2014 - 2019
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C3 AIRCROSS II Van (2C_, 2R_) PureTech 82 (HNZ (EB2DT)) | 110hp
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C3 II (SC_) 1.2 THP 110 (HNZ (EB2DT)) | 110hp
Petrol 1199cc | Hatchback | 2014 - 2016
C3 III (SX) 1.2 THP 110 (SXHNPS, SXHNZT, SXHNZ6) (HNP (EB2ADT)/HNV (EB2DTM)/HNZ (EB2DT)) | 110hp
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C3 III Van (SX_, SY_) PureTech 110 (HNZ (EB2DT)) | 110hp
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C4 CACTUS 1.2 THP 110 (HNP (EB2ADT)/HNV (EB2DTM)/HNZ (EB2DT)) | 110hp
Petrol 1199cc | Hatchback | 2014 - 2025
C4 CACTUS Van (0B_, 0P_) PureTech 110 (HNP (EB2ADT)/HNZ (EB2DT)) | 110hp
Petrol 1199cc | Hatchback Van | 2019 - 2025
C4 CACTUS Van (0B_, 0P_) PureTech 130 (HNY (EB2DTS)) | 131hp
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C4 GRAND PICASSO II (DA_, DE_) 1.2 THP 130 (HNY (EB2DTS)) | 130hp
Petrol 1199cc | MPV | 2014 - 2025
C4 II (NC_) 1.2 THP 110 (NCHNZ6, NCHNV6) (HNV (EB2DTM)/HNZ (EB2DT)) | 110hp
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C4 PICASSO II 1.2 THP 130 (HNY (EB2DTS)) | 130hp
Petrol 1199cc | MPV | 2014 - 2025
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Petrol 1199cc | MPV | 2018 - 2025
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Petrol 1199cc | Hatchback | 2014 - 2015
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Petrol 1199cc | Convertible | 2014 - 2015
DS4 (NX_) 1.2 THP 130 (HNY (EB2DTS)) | 130hp
Petrol 1199cc | Hatchback | 2014 - 2015
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DS 3 Convertible (SB_) 1.2 THP 110 (HNP (EB2ADT)/HNZ (EB2DT)) | 110hp
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Petrol 1199cc | Hatchback | 2015 - 2018
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Petrol 1199cc | Hatchback | 2013 - 2019
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Petrol 1199cc | MPV | 2016 - 2025
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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.