Fitment: Throttle Valve Body fits for Chevrolet Express 1500 5.7L 1998-2000 Replacement part numbers: for 337-05224, 33705224, 17113389, 17096143, 17097213, 17096255 Improve driving performance: Improve acceleration response sensitivity, enhance power output, and improve fuel economy Precise adaptation model: specially designed for the 1998-2000 Chevrolet Express 1500 5.7L, it can directly replace the original part 17113389 without additional modification during installation. Every product has quality inspection before leaving the factory.Customer satisfaction is our tireless pursuit.We will show you a sincere attitude and satisfactory solution., Manufacturer: Forcitory