AUTO 8495-3N Alternator Replacement | 2003-2009 Chevrolet/GMC 8500

AUTO 8495-3N Alternator Replacement

Direct-fit replacement alternator engineered to OEM specifications for AUTO 8495-3N. Built to deliver the charging performance, durability, and consistent operation you expect from your original equipment unit — at a fraction of the dealership cost.

Vehicle Fitment

Engineered to fit the following vehicles, model years 2003-2009:

• Chevrolet — 8500
• GMC — 8500

Always verify fitment by year, make, model, engine, and trim before installing.

Cross-Reference

Replaces: AUTO 8495-3N

Key Features & Benefits

• Direct OEM-Style Fit — Built to OE specifications for plug-and-play installation; no modifications required.
• Stable Charging Output — Maintains correct voltage across electrical loads for headlights, HVAC, infotainment, and accessories.
• Heavy-Duty Construction — Heat-resistant housing, sealed bearings, and high-quality diodes for long service life.
• Bench-Tested for Reliability — Each unit is tested for output and consistent performance before shipment.
• OE Quality Without OE Pricing — Premium-grade replacement at a budget-friendly price.

Installation Tips

• Disconnect the negative battery terminal before beginning installation.
• Inspect the serpentine belt and tensioner; replace if worn or glazed.
• Torque all mounting bolts to manufacturer specification.
• After installation, verify charging voltage at the battery (typically 13.8–14.7V at idle with accessories on).

Warranty & Shipping

Backed by our return policy and ships fast from Interlight. Free shipping on qualifying orders.