NGK Genuine BP6ES Spark Plug - silver/white

Product Information

Therefore, it would be best to get a complete match according to the required specifications when replacing your car’s old or faulty spark plugs. What spark plug is hotter, 8 or 9? These spark plugs are also designed with thread size, reach diameter, and capacity to deliver optimum engine performance and efficiency like their BPR6ES counterpart. You can consider one of them if you’re looking for a replacement for your BPR6ES. Is it OK to mix spark plug types? In other words, the BPR6ES spark plug is more suitable in high-performance engines that generate a lot of heat due to its ability to prevent overheating. So, if your car’s engine is built to run with BPR6ES spark plugs and you replace them with BPR5ES, you may experience fouling, misfiring, overheating, etc. NGK BPR5ES and BPR4ES spark plugs are both manufactured by NGK. The two spark plugs are built with several similarities in many ways. However, they also have a couple of vital differences just like BP5ES Vs. BPR5ES. Through extensive research & development NGK has developed a range of spark plugs specifically aimed at the horticultural market

Champion RN11YC4, Denso W16EPR-U, and Bosch WR7DC spark plugs are some of the close substitutes for the BPR6ES spark plug. Therefore, it is crucial to hold onto the spark plug specifications recommended by your vehicle’s manufacturer to keep it running efficiently. Final Words The proper gap for the BPR5ES spark plug is 0.028 in – 0.030 in (0.70 mm – 0.80 mm). It is essential to state that the gap is a significant factor that determines the performance and efficiency of a spark plug. Generally, both the BPR5ES and the BPR6ES spark plugs are sold with a standard manufacturer’s warranty. However, the period and terms of the warranty will largely depend on the supplier in some cases. What Is The Difference Between NGK BPR5ES And BPR4ES?

That chart also gives a good rundown on understanding heat range and optimum plug for your application to ensure plug does not foul up (combustion heat too cold for plug to self clean) and at the other end of the scale where combustion temps are too high for the plug and it gets so hot it is pre-igniting the charge before the plug fires causing pinging and the resultant destructive damage that can cause.

Trivalent plating is the silver finish on NGK plugs that is specifically developed to prevent corrosion of the bare metal threads and metal surfaces of the spark plug, whilst allowing dry fitment without the need for anti-seize compounds during services. I fail then to understand at all why Bosch would recommend using a resistor plug in a W126 application - you are just asking for trouble. Generally, the BPR5ES spark plugs come with several advantages. Nevertheless, ensure to consult your vehicle’s manufacturer’s manual to ascertain the best spark plug for you. What is a substitute for BPR6ES?

Does it matter which spark plug?

ago under guidance of a local Mercedes Authorised Repair/service Centre the owner "who is also an old school Mercedes fanatic" told me the best now plug to run in our engines is "Beru Ultra-X UX79" Part # 0 002 335 600