There is no one definitive answer to this question as the cost of a front bumper on a 2003 Silverado can vary depending on a variety of factors. For example, the material the bumper is made from (steel, aluminum, plastic, etc.), the quality of the bumper, and the company you purchase it from can all affect the cost. Additionally, installation costs will vary depending on the complexity of the installation and the experience of the installer.
That said, on average, the cost of a front bumper on a 2003 Silverado is likely to be between $200 and $500. This range takes into account the variety of factors that can affect the cost, as well as the fact that prices can vary significantly from one company to the next. If you are looking for a high-quality bumper made from durable materials, you can expect to pay more than if you were to go for a budget option. However, it is important to remember that you get what you pay for, and a cheap bumper may not be as durable or effective as a more expensive option.