Alternator Replacement for Chevy Silverado 1500 2005 2006 V6 4.3L V8 5.3L 6.0L Fits Avalanche 1500 2005 2006 Sierra 1500 1500 HD 2005 2006 Classic 2007 Sierra 1500 Classic Cadillac Escalade Escalade ESV EXT
✔️ 12V, 145A, CW rotation, 6-Groove pulley, 57mm OD, Single-pack
This aftermarket alternator replacement is designed to fit a wide range of GM trucks and SUVs from 2005-2007, including Silverado 1500, Avalanche 1500, Sierra 1500 and Classic, Cadillac Escalade and Escalade ESV/EXT. It comes as a single unit with a 2-pin plug for straightforward installation, restoring reliable charging for your vehicle’s electrical system.
✅ 12V output, 145A max rating
✅ Clockwise rotation (CW) to match factory wiring
✅ 6-groove pulley, 57mm OD for proper belt alignment
✅ 2-pin plug connector included for easy install
✅ New replacement with multiple reference numbers included
💡 What is an alternator replacement used for in GM trucks and how do you know you need it?
Here's a handy guide to help you decide if replacement makes sense.
- Restores proper charging for GM electrical systems and battery health- Keeps lights, radios, and accessories running smoothly to avoid voltage drop
- Prevents unexpected battery drain and startup issues on aging vehicles
- Provides a reliable upgrade when OEM units fail or wear out