Legendary Brands. Serious Performance.
-44%
NGK ILFR6A Laser Iridium Spark Plug (3588)
RRP. £17.64£9.95SAVE £7.69 (44%)
NGK ILFR6A Laser Iridium Spark Plug – Stock 3588
The NGK ILFR6A is a high-quality iridium spark plug designed for reliable ignition and long service life. Its fine-wire iridium tip needs less voltage to spark, helping cold starts, smooth idle and consistent performance. A platinum pad on the ground electrode reduces wear, so the gap stays stable for longer.
This plug suits petrol engines that use a 14 mm long-reach, gasket-seat design with NGK heat range 6. It is factory set to the correct gap for the intended engines. Always confirm fitment and gap with your vehicle’s specification.
- Stable spark under load for clean combustion and response
- Long-lasting materials help maintain performance over time
- Resistor design for reduced electrical noise and ECU-friendly operation
| Part Number | ILFR6A |
| NGK Stock Number | 3588 |
| Part Category | 686 – Spark Plug |
| GTIN | 087295135884 |
| Centre Electrode | Fine-wire iridium |
| Ground Electrode | Nickel with platinum pad |
| Resistor | Yes |
| Heat Range (NGK) | 6 |
| Thread Diameter | 14 mm |
| Thread Pitch | 1.25 |
| Reach (Thread Length) | 19 mm |
| Hex Size | 16 mm |
| Seat Type | Flat seat with gasket |
| Design | Projected tip, single ground electrode |
| Factory Gap | Preset – use vehicle spec to confirm |
| Typical Torque (M14 gasket seat) | 18 – 25 Nm |
Fitment guidance
This plug fits engines designed for a 14 mm, long-reach (19 mm), gasket-seat iridium plug with heat range 6. Use the site’s vehicle lookup to confirm compatibility, or check the Vehicle Fitment tab for full details.
Note: Always install on a cool engine. Use a torque wrench and do not overtighten. Adjusting the gap on fine-wire iridium plugs is not recommended unless specified by the vehicle manufacturer.
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-3588 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
C-CLASS (W203) C 180 Kompressor (203.046) (M 271.946) | 143hp
Petrol 1796cc | Saloon | 2002 - 2007
C-CLASS (W203) C 200 CGI Kompressor (203.043) (M 271.942) | 170hp
Petrol 1796cc | Saloon | 2003 - 2007
C-CLASS (W203) C 200 Kompressor (203.042) (M 271.940) | 163hp
Petrol 1796cc | Saloon | 2002 - 2007
C-CLASS (W203) C 230 Kompressor (203.040) (M 271.948) | 192hp
Petrol 1796cc | Saloon | 2004 - 2007
C-CLASS Coupe (CL203) C 160 Kompressor (203.730) (M 271.921) | 122hp
Petrol 1796cc | Coupe | 2002 - 2008
C-CLASS Coupe (CL203) C 180 Kompressor (203.746) (M 271.946) | 143hp
Petrol 1796cc | Coupe | 2002 - 2008
C-CLASS Coupe (CL203) C 200 CGI Kompressor (203.743) (M 271.942) | 170hp
Petrol 1796cc | Coupe | 2003 - 2008
C-CLASS Coupe (CL203) C 200 Kompressor (203.742) (M 271.940) | 163hp
Petrol 1796cc | Coupe | 2002 - 2008
C-CLASS Coupe (CL203) C 220 (M 271.940) | 163hp
Petrol 1796cc | Coupe | 2002 - 2008
C-CLASS Coupe (CL203) C 230 Kompressor (203.740) (M 271.948) | 192hp
Petrol 1796cc | Coupe | 2002 - 2008
C-CLASS T-Model (S203) C 180 Kompressor (203.246) (M 271.946) | 143hp
Petrol 1796cc | Estate | 2002 - 2007
C-CLASS T-Model (S203) C 200 CGI Kompressor (203.243) (M 271.942) | 170hp
Petrol 1796cc | Estate | 2003 - 2007
C-CLASS T-Model (S203) C 200 Kompressor (203.242) (M 271.940) | 163hp
Petrol 1796cc | Estate | 2002 - 2007
C-CLASS T-Model (S203) C 230 Kompressor (203.240) (M 271.948) | 192hp
Petrol 1796cc | Estate | 2004 - 2007
CLC-CLASS (CL203) CLC 180 Kompressor (203.746) (M 271.946) | 143hp
Petrol 1796cc | Coupe | 2008 - 2011
CLK (C209) CLK 200 CGI (209.343) (M 271.942) | 170hp
Petrol 1796cc | Coupe | 2003 - 2009
CLK (C209) CLK 200 Kompressor (209.341) (M 271.955) | 184hp
Petrol 1796cc | Coupe | 2006 - 2009
CLK (C209) CLK 200 Kompressor (209.342) (M 271.940) | 163hp
Petrol 1796cc | Coupe | 2002 - 2009
CLK Convertible (A209) CLK 200 CGI (209.343) (M 271.942) | 170hp
Petrol 1796cc | Convertible | 2003 - 2010
CLK Convertible (A209) CLK 200 Kompressor (209.441) (M 271.955) | 184hp
Petrol 1796cc | Convertible | 2006 - 2010
CLK Convertible (A209) CLK 200 Kompressor (209.442) (M 271.940) | 163hp
Petrol 1796cc | Convertible | 2003 - 2010
CLS (C219) CLS 55 AMG (M 113.990) | 476hp
Petrol 5439cc | Coupe | 2005 - 2006
CLS (C219) CLS 55 AMG (219.376) (M 113.990) | 476hp
Petrol 5439cc | Coupe | 2005 - 2010
E-CLASS (W211) E 200 Kompressor (211.041) (M 271.956) | 184hp
Petrol 1796cc | Saloon | 2006 - 2008
E-CLASS (W211) E 200 Kompressor (211.042) (M 271.941) | 163hp
Petrol 1796cc | Saloon | 2002 - 2008
E-CLASS (W211) E 200 NGT (211.042) (M 271.941) | 163hp
Petrol/Compressed Natural Gas (CNG) 1796cc | Saloon | 2004 - 2008
E-CLASS (W211) E 55 AMG Kompressor (211.076) (M 113.990) | 476hp
Petrol 5439cc | Saloon | 2002 - 2008
E-CLASS T-Model (S211) E 200 Kompressor (211.241) (M 271.956) | 184hp
Petrol 1796cc | Estate | 2006 - 2009
E-CLASS T-Model (S211) E 200 T Kompressor (211.242) (M 271.941) | 163hp
Petrol 1796cc | Estate | 2003 - 2009
E-CLASS T-Model (S211) E 55 T AMG Kompressor (M 113.990) | 476hp
Petrol 5439cc | Estate | 2005 - 2006
E-CLASS T-Model (S211) E 55 T AMG Kompressor (211.276) (M 113.990) | 476hp
Petrol 5439cc | Estate | 2003 - 2009
G-CLASS (W463) G 55 AMG (463.270, 463.271) (M 113.993) | 476hp
Petrol 5439cc | Closed Off-Road Vehicle | 2004 - 2006
G-CLASS (W463) G 55 AMG (463.270, 463.271) (M 113.993) | 507hp
Petrol 5439cc | Closed Off-Road Vehicle | 2008 - 2012
G-CLASS (W463) G 55 AMG (463.270, 463.271) (M 113.993) | 500hp
Petrol 5439cc | Closed Off-Road Vehicle | 2006 - 2012
S-CLASS (W220, V220) S 55 AMG Kompressor (220.074, 220.174) (M 113.991) | 500hp
Petrol 5439cc | Saloon | 2002 - 2005
S-CLASS Coupe (C215) CL 55 AMG Kompressor (215.374) (M 113.991) | 500hp
Petrol 5439cc | Coupe | 2002 - 2006
SL (R129) 55 AMG (M 113.985) | 354hp
Petrol 5439cc | Convertible | 2000 - 2001
SL (R230) 55 AMG (230.472) (M 113.995) | 517hp
Petrol 5439cc | Convertible | 2006 - 2012
SL (R230) 55 AMG (230.474) (M 113.992) | 476hp
Petrol 5439cc | Convertible | 2001 - 2002
SL (R230) 55 AMG Kompressor (230.474) (M 113.992) | 500hp
Petrol 5439cc | Convertible | 2002 - 2012
SLK (R171) 200 Kompressor (171.442) (M 271.944) | 163hp
Petrol 1796cc | Convertible | 2004 - 2011
SLR (R199) 5.4 (199.376) (M 155.980) | 626hp
Petrol 5439cc | Coupe | 2004 - 2025
SLR (R199) 5.4 (199.376) (M 155.980) | 626hp
Petrol 5439cc | Coupe | 2004 - 2025
SLR (R199) 5.4 722 Edition (M 155.980) | 650hp
Petrol 5439cc | Coupe | 2006 - 2025
SLR Roadster (R199) 5.4 (M 155.980) | 626hp
Petrol 5439cc | Convertible | 2007 - 2025
SLR Roadster (R199) 5.4 (M 155.980) | 650hp
Petrol 5439cc | Convertible | 2006 - 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.