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NGK BCPR6EY Nickel Spark Plug (1146)
Original price was: £7.96.£3.76Current price is: £3.76.
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NGK BCPR6EY Spark Plug – Stock 1146
The NGK BCPR6EY is a reliable, OE-quality spark plug for everyday performance. It uses a projected tip and a V-grooved ground electrode to help ignite the mixture cleanly. This improves cold starts, idle stability, and throttle response. The copper core pulls heat away from the tip, keeping the plug stable under load. The built-in resistor cuts electrical noise that can affect the radio or ECU.
- Clean, consistent spark for smooth running
- Good cold-start performance and stable idle
- Durable nickel electrode with copper core for heat control
Fitment guidance
Suited to petrol engines that specify NGK BCPR6EY or an equivalent with 14 mm thread, 19 mm reach, NGK heat range 6, and a gasket seat. This pattern is common in many engines using a 13/16 in (20.8 mm) plug. Use the site’s vehicle lookup to confirm fitment, or check the Vehicle Fitment tab for full details.
Technical specifications
| Part number | BCPR6EY |
| NGK stock number | 1146 |
| Category | 686 – Spark Plug |
| GTIN | 087295111468 |
| Thread diameter | 14 mm |
| Thread pitch | 1.25 |
| Reach (thread length) | 19 mm (3/4 in) |
| Hex size | 20.8 mm (13/16 in) |
| Seat type | Flat seat with gasket |
| Heat range | 6 (NGK scale) |
| Resistor | Yes |
| Insulator projection | Projected tip |
| Centre/ground electrode | Nickel alloy, single ground with V-groove |
| Core material | Copper core |
| Factory gap | 0.8 mm (adjust if the engine spec differs) |
| Tightening torque | 18-25 Nm (14 mm gasket seat) |
| Tightening angle (new gasket) | 1/2 – 2/3 turn after finger tight |
Always check the vehicle manufacturer’s specification for heat range, reach, and gap before installation.
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-1146 Confirmed Fitment
Our team haven't provided any fitment data for this product yet, please get in touch or check back later!
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.