NGK BPR6EF Spark Plug (4665)
Original price was: £7.39.£3.46Current price is: £3.46.
NGK BPR6EF Spark Plug – Stock No. 4665
A reliable, resistor-type spark plug with a projected tip for clean ignition and steady performance. It suits many older petrol engines that use a long-reach, gasket-seat M14 plug. Always confirm fitment with the vehicle lookup or the Vehicle Fitment tab.
This plug helps start the engine cleanly, burn fuel more efficiently, and keep idle smooth. It is a robust nickel copper-core design for consistent spark and good heat control.
- Steady spark for smoother idle and better throttle response
- Resistor design reduces electrical noise that can affect the ECU or audio
| Part Number | BPR6EF |
| NGK Stock Number | 4665 |
| GTIN | 087295146651 |
| Category | 686 – Spark Plug |
| Thread Size | M14 x 1.25 |
| Seat Type | Gasket (flat seat) |
| Reach (thread length) | 19 mm |
| Hex Size | 20.8 mm (13/16 in) |
| Heat Range | 6 (medium) |
| Design | Projected tip, resistor |
| Centre Electrode | Nickel alloy with copper core |
| Ground Electrode | Nickel steel |
| Factory Gap | 0.8 mm (adjust if the manufacturer specifies) |
| Terminal | Standard terminal nut (check coil/lead type) |
Fitment Guidance
Fits many petrol engines that require an M14, 19 mm reach, gasket-seat, projected-tip resistor plug. Use our vehicle lookup to confirm fitment, or check the Vehicle Fitment tab for full details.
Note: Always set the gap to the vehicle manufacturer’s spec and torque to the correct value to avoid damage.
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-4665 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
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Stock at Progressive Parts
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1+ IN STOCK in green stock is readily available in one of our warehouses for express delivery (at the time of viewing).
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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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Products on the Progressive Parts website that meet this approval will be clearly marked or labelled EC or ECE approved.