The Microgard Premium Diesel Fuel Filter 33579 is designed for maximum protection for GM trucks. This high-quality fuel filter has a 14.00 micron rating and is specifically designed for performance and custom fitment. Made in the USA, this fuel filter offers superior filtration and durability, ensuring the longevity of your vehicle's engine. With its outer diameter bottom of 2.176 inches, this filter is a reliable choice for maintaining the fuel system of your truck.