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I recently replaced my old spark plug with the NGK Spark Plug Stock # 4629, and I couldn’t be more satisfied with the results. NGK is a well-known brand, and they really deliver when it comes to quality. This plug fit my engine perfectly, and the difference was noticeable right away. The engine starts quicker and more reliably than before, with a smooth idle and consistent performance. Whether I’m using it in my mower, generator, or other small engines, the NGK plug ensures a strong, clean burn, improving overall efficiency. I've found that it also helps reduce emissions, which is a nice bonus if you're environmentally conscious. The installation was super easy, and the plug comes pre-gapped, so I didn’t have to make any adjustments. Overall, this is a solid, dependable spark plug that keeps my engines running smoothly. Plus, it’s affordable and long-lasting, so you’re getting great value for your money. If you’re looking for a high-quality spark plug that won’t let you down, the NGK 4629 is definitely worth considering. Highly recommended! Read more

I have been a user of this model and brand for over 30 years. They are top notch. Don't mess with a good thing. Read more