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NGK B7HS Standard Spark Plug (5110)
Original price was: £5.83.£2.65Current price is: £2.65.
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NGK B7HS Spark Plug – Stock No. 5110
The NGK B7HS is a reliable, nickel-alloy spark plug for engines needing a short-reach M14 plug without a resistor. It delivers a consistent spark for easy starting, smooth idle and clean running. The NGK 7 heat range suits many classic two-stroke and small-capacity engines that run at sustained higher temperatures.
Always match thread size, reach, seat type, heat range and resistor type to your engine. Set the gap to the vehicle maker’s spec.
Key benefits
- Stable ignition for better starting and throttle response
- Durable nickel electrode for long service life
- Short-reach, gasket-seat design for many classic applications
- Non-resistor type for systems that specify no suppression
| Specification | Detail |
|---|---|
| Part Number | B7HS |
| NGK Stock Number | 5110 |
| Part Category | 686 – Spark Plug |
| GTIN | 087295151105 |
| Thread size | M14 x 1.25 |
| Reach (thread length) | 12.7 mm |
| Seat type | Flat seat – gasket |
| Hex size | 20.8 mm (13/16 in) |
| Heat range | 7 (NGK scale) |
| Resistor | No (non-resistor) |
| Centre electrode | Nickel alloy |
| Ground electrode | Standard, single |
| Projection | Non-projected |
| Terminal type | Solid terminal nut (SAE) |
| Factory gap | 0.7 mm (adjust to OE spec) |
| Typical torque | 25-30 Nm (14 mm, gasket seat) |
| Installation (new plug) | Finger tight, then 1/2 – 2/3 turn |
Compatibility guidance
Common on many classic air-cooled motorcycles and scooters, and small two-stroke marine/outboard engines that take an M14 short-reach, gasket-seat, non-resistor plug. Use our vehicle lookup to confirm fitment, or check the Vehicle Fitment tab for full details.
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-5110 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.
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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.