The Mechanical Fuel Injector is a high-quality part made by Bosch, designed specifically for Mack engines. With the manufacturer part number 0-432-191-272 and OE/OEM part number 736GB421M3, this fuel injector is guaranteed to fit and function properly. Made in the United States, this diesel fuel injector ensures reliable and efficient fuel delivery for your vehicle. Trust in this product to keep your engine running smoothly and effectively.