NGK Spark Plug BP4HS/BP4H Plugs [Box 10]

NGK Spark Plug BP4HS/BP4H Plugs [Box 10] are a crucial component for every engine and play a vital role in producing maximum power while keeping fuel consumption and emissions to a minimum. NGK, as one of the largest manufacturers in the world of spark plugs, understands the importance of spark plug design. With every year, the range of NGK spark plugs grows to accommodate the demands of modern engines.

This spark plug design takes into consideration physical dimensions, combustion chamber shape, cooling abilities, and fuel and ignition systems. In addition, changes in fuelling systems and the fuel itself have meant some special features have been adopted at the ‘firing end’ of the spark plug. These spark plugs have increased service life and are often specified because of their superior ignition qualities.

To combat the ‘cold fouling’ effect that can occur in some engines using unleaded fuels, specially arranged ground electrodes are sometimes used. It is not uncommon to find two, three, or four ground electrode arrangements in new vehicles. NGK engineers work closely with engine and vehicle manufacturers to produce the ideal spark plug type for each application. Additionally, NGK employs the very latest production technology to ensure that every aspect is catered for – performance, economy, and value.

The NGK Spark Plug BP4HS/BP4H Plugs [Box 10] heat range selection is a complex task, with many factors to take into account, and NGK engineers make specific recommendations for each engine and their use. These spark plugs have a wider range than ordinary plugs, making them suitable for both high speed and low speed driving.

The NGK Spark Plug BP4HS/BP4H Plugs [Box 10] utilize copper wire, which is the secret to their wide heat range. Copper's superior heat conductivity dissipates heat quicker, cooling the electrode tip and insulator tip, preventing hot spots that could cause pre-ignition. With the exception of a couple of older applications, all the spark plugs in this motorcycle catalogue employ copper core technology.

NGK Spark Plug BP4HS/BP4H Plugs [Box 10] are designed to give optimum performance under a high range of conditions. These standard spark plugs with copper cored centre electrodes provide a wide heat range and superior heat conductivity, making them a top choice for motorcycle maintenance.