Champion RN11YC4, Denso W16EPR-U, and Bosch WR7DC spark plugs are some of the close substitutes for the BPR6ES spark plug. BPR5ES spark plug is used to combat vehicle engine issues that are fuel-related. The spark plug provides faster ignition, as well as enhanced fuel efficiency, smoother acceleration, and minimal emissions. 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? TheBPR5ES spark plugis one of NGK’s popular spark plug models. Being a key player in the automotive industry, NGK produces some of the best spark plugs for a wide range of vehicles and motorcycles.

Although NGK BP6ES and BPR6ES spark plugs are manufactured by NGK, the two models come with some discrepancies like the case of BPR5ES 11 Vs. BPR5ES. The heat range is the main difference between the two spark plugs. Champion RC12YC and Denso W16EX-U are equivalent to BPR5ES. However, inasmuch as these spark plugs are equivalent with respect to their heat range and physical dimensions, they also have slight differences. The plug also has a resistor built into the ceramic insulator that helps to minimize electromagnetic interference and noise. The BPR6ES high-quality materials and durable construction style provide exceptional performance and extended service life. Firstly, the heat range is one of the main differences between the BPR5ES and BPR4ES spark plugs. While the BPR5ES spark plug has a heat range of 5, the BPR4ES spark plug is built with a heat range of 4. In other words, the BPR5ES can dissipate more heat than its BPR4ES counterpart.Therefore, it would be best to use the BPR5ES for better performance, especially in a case where you’re battling a fouling issue. 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? Both spark plugs are designed with an alumina ceramic insulator that enables them to withstand high temperatures and helps to provide good electrical insulation. However, the BPR6ES insulator is slightly longer than that of the BPR5ES spark plug. Copper Core

If the gap (distance) between the center and side electrodes is too small, you will most likely experience a weak spark, thereby leading to poor engine performance. Does it matter which spark plug? 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. 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. Spark plugs with projected tips can focus the spark further, thereby enabling the plug to swiftly ignite the air-fuel mixture and deliver an efficient performance. What happens if you run a hotter spark plug?

Final Words

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. Another notable difference between the BPR5ES and BPR4ES spark plugs is their electrode design. The BPR5ES plug has a U-groove electrode that helps to enhance ignition and minimize fouling. On the other hand, the BPR4ES is built with a standard electrode design.

The NGK Standard Spark Plug is constructed from durable material that is corrosion and abrasion resistant. The spark plug insulators are made of 99 percent pure alumina silicate, allowing for longer insulator noses for reduced fouling. This spark plug features a triple gasket sealing process that eliminates fuel leakage. It also includes a solid copper core that provides superior heat dissipation and conductivity. This spark plug has resistor that is produced with a glass and carbon mixture, which is fired to ensure superior performance and durability. It has corrugated ribs that prevent flashover and cold rolled threads to inhibit damage to the cylinder head. Typically, using the spark plug recommended by your vehicle’s manufacturer for your engine is best. If you are not sure of the spark plug to use, ensure to consult your owner’s manual or an expert auto technician. FAQs What spark plug is the same as BPR5ES?End result in any sigificant increase in resistance on our system is a stuffed Ignition Control Module (EZL) Through extensive research & development NGK has developed a range of spark plugs specifically aimed at the horticultural market BERU Ultra X and Ultra X Platinum ? the spark plugs for x-tremely high demands. | Federal-Mogul Global Aftermarket