NGK BPR6EIX Iridium IX Spark Plug (6637)
Original price was: £23.64.£13.41Current price is: £13.41.
NGK BPR6EIX Iridium IX Spark Plug – Stock No. 6637
The NGK BPR6EIX is a performance-focused iridium spark plug designed for clean, reliable ignition. It uses a fine iridium centre tip to reduce misfires, improve cold starts, and keep performance consistent over a long service life. The projected design helps place the spark in a better position in the combustion chamber, aiding throttle response and smooth running.
Why choose this plug
- Fine 0.6 mm iridium tip for a strong, stable spark
- Resistor design reduces electrical noise that can affect the ECU
- Projected nose helps drivability and idle quality
- Trivalent plating resists corrosion and seizing in the cylinder head
| Specification | Value |
|---|---|
| Part Number | BPR6EIX |
| NGK Stock Number | 6637 |
| GTIN | 087295166376 |
| Category | 686 – Spark Plug |
| Thread Diameter | 14 mm |
| Thread Reach | 19 mm |
| Seat Type | Flat seat with gasket |
| Hex Size | 20.8 mm (13/16 in) |
| Heat Range | 6 (NGK scale) |
| Resistor | Yes |
| Insulator Projection | Projected |
| Centre Electrode | Iridium alloy, 0.6 mm fine tip |
| Ground Electrode | Nickel alloy, tapered cut |
| Plating | Trivalent anti-corrosion |
| Preset Gap | 0.8 mm (check and set to your vehicle spec) |
Important: Always confirm fitment using the site’s vehicle lookup or check the Vehicle Fitment tab. Set the spark plug gap and installation torque to your vehicle manufacturer’s specification.
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-6637 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
UK Shipping
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DELIVERY INFORMATION
International Shipping
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DELIVERY INFORMATION
Returns
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Stock at Progressive Parts
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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.
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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.
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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.