fits model: Crf250r. make: Honda. year: 2010–2016.

( Brand: Honda Pack ), ( Manufacturer Part Number: 31912-KRN-731 ), ( Part Type: Spark Plug ), ( Country/region Of Manufacture: Japan )
The 31908-krn-a41 and 31912-krn-731 are high-quality spark plugs specifically designed for Honda CRF250R models from 2010 to 2016. These spark plugs, manufactured by NGK, are part of the R0451B-8 and R0409B-9 series respectively.
The 31908-krn-a41 is an Iridium IX spark plug, featuring a fine Iridium center electrode that ensures superior ignitability and longer life. Iridium is a durable and corrosion-resistant material, which makes this spark plug ideal for high-performance engines like the CRF250R. The R0451B-8 series spark plug has a heat range of NGK's standard "hot" and is well-suited for typical riding conditions.
The 31912-krn-731 is a Copper Plus spark plug, featuring a copper center electrode and a nickel alloy ground electrode. Copper spark plugs are known for their excellent performance and durability, making them a popular choice for many motorcycle enthusiasts. The R0409B-9 series spark plug has a heat range of NGK's standard "cold" and is well-suited for cooler engine temperatures and colder climates.
Both spark plugs are designed to deliver reliable ignition for consistent engine performance and improved fuel efficiency. They are also easy to install, thanks to the convenient gapped electrode design.
In summary, the 31908-krn-a41 and 31912-krn-731 are high-quality spark plugs that offer excellent performance and durability for Honda CRF250R models from 2010 to 2016. Whether you prefer the superior ignitability and longer life of the Iridium IX spark plug or the excellent performance and durability of the Copper Plus spark plug, these NGK spark plugs will help keep your CRF250R running at its best.
Pros of buying a (31908-krn-a41 Honda Spark Plug CRF250R 2010-2016 R0451B-8 and 31912-krn-731 R0409B-9 pack by NgK:1. Reliable brand: NgK is a well-known and trusted manufacturer of spark plugs, with a reputation for producing high-quality products that are reliable and durable.
2. Compatibility: These spark plugs are specifically designed for the Honda CRF250R model from 2010 to 2016, so they are guaranteed to fit and work properly in your bike.
3. Improved performance: Using high-quality spark plugs can help improve your bike's performance by ensuring that it is running at optimal efficiency.
4. Longer lifespan: NgK spark plugs are known for their long lifespan, which can save you money in the long run by reducing the need for frequent replacements.
Cons of buying a (31908-krn-a41 Honda Spark Plug CRF250R 2010-2016 R0451B-8 and 31912-krn-731 R0409B-9 pack by NgK:1. Cost: High-quality spark plugs like these can be more expensive than cheaper alternatives, so they may not be the best option for budget-conscious riders.
2. Installation: Installing spark plugs can be a relatively straightforward process, but it may require some tools and knowledge, which some riders may not have.
Conclusion: If you are looking for a reliable and high-quality spark plug for your Honda CRF250R, the NgK (31908-krn-a41 and 31912-krn-731) pack is a great option. While they may be more expensive than cheaper alternatives, the improved performance and longer lifespan can help save you money in the long run. If you are not comfortable installing spark plugs yourself, it may be worth considering having a professional do it for you to ensure that it is done correctly.
Recommendation: I would recommend buying the NgK (31908-krn-a41 and 31912-krn-731) pack for your Honda CRF250R, as they are a reliable and high-quality option that can help improve your bike's performance and longevity. If you are not comfortable installing the plugs yourself, consider having a professional do it to ensure that it is done correctly.
31908-krn-a41. Genuine Honda spark plug for crf 250r R0451B-8.