Power up your Ford International Medium or Heavy Duty truck with the reliable Wilson alternator, part number 90-01-4058. Designed to fit a range of models from 1988 to 1999, this alternator ensures a proper fit and dependable performance. It boasts a robust 100-amp output, compatible with 12V systems, to keep your truck's engine running smoothly. Crafted with precision in Mexico, this alternator features a durable matte finish that stands up to the rigors of heavy use. It is backed by a 1-year manufacturer warranty for added peace of mind. The Wilson brand is synonymous with quality, making this alternator an excellent choice for your vehicle's electrical needs.