ACDelco Professional New Alternators are manufactured with all new components, and are the high quality replacement ideal for many vehicles on the road today. Key components are lubricated to help ensure improved performance and long life reliability even in the toughest conditions. Alternators have regulators that are computer tested for voltage stability, terminal function, and electronic circuit board integrity. These premium aftermarket replacement components are manufactured to meet your expectations for fit, form, and function. Vehicle Fitment: CadillacEscalade hevyAstro lazer K Pickup xpress -10 Pickup ilverado 2500 ilverado 3500 uburban 2001Tahoe MCCK Pickup immy afari avana ierra 2500 ierra 3500 onoma uburban ukon 2001Yukon Denali 2000IsuzuHombre 1997OldsmobileBravada