Spark Plug NGK B7HS copper M14x1,25, wrench width 20.8mm
- Short thread
- Similar to BOSCH W4AC / W5AC / DENSO W22FS-U
- This product fits on almost all products – see our Spark Plug Guide here
The 98% pure copper core delivers increased heat dissipation for more reliable starts and reduced risk of overheating. While cold-rolled threads prevent cross-threading and damage to cylinder heads and a trivalent plating eliminates the need for anti-seize. Complete with a high-grade alumina silicate ceramic.
The spark plug is an absolute key component in a vehicle with a petrol engine. To a decisive degree, the spark plug determines the optimum performance and safe functioning of the engine.
The task of the spark plug is to guide the high voltage created by the ignition coil to the combustion chamber and to ignite the compressed fuel-air mix with the electrical sparks between the electrodes.
Installation Instructions for your new NGK Spark Plug from NGK:
Confirm with manufacturers specifications on the thread reach of the spark plug
Clean surface around gasket seat / spark plug hole to remove any dirt
Insert spark plug and tighten until finger tight and the gasket touches the cylinder head
Use a Spark Plug Wrench or correct spark plug socket to then tighten a further half to two-thirds of a turn to fully seat