A-NAFTULY Alternator for Chevy/GMC 1996–2002 100A ADR0089 — High‑Output, Direct-Fit

A-NAFTULY Alternator ADR0089 is a high-output, direct-fit 100A replacement designed for 1996–2002 Chevy and GMC V6/V8 trucks and SUVs to restore charging performance reliably.

If your Suburban, Tahoe, Silverado, Blazer, Astro, Yukon or other GM vehicle from 1996–2002 shows alternator-related symptoms — dimming lights, battery drain, or warning lights — this 100 amp, 12-volt unit is built as a direct OE-style swap to get you back on the road. The ADR0089 (also referenced as 40012098) is engineered with upgraded copper windings, improved insulation and calibrated rotors to deliver stable electrical output and faster starts compared with worn factory units.

Which vehicles and engines does this alternator fit?

This alternator is compatible with a wide range of Chevy and GMC models from 1996 through 2002, including light-duty trucks, SUVs and vans with 4.3L, 5.0L, 5.7L, 6.5L and 7.4L engines. Always verify your OEM part number or compare mounting, pulley and electrical plug before purchase.

• Fits Chevy/GMC C/K 1500/2500/3500, Suburban, Silverado, Tahoe, Yukon, Blazer, S10, Sonoma
• Also fits vans and utility models: Astro, Savana, Express, Safari
• Compatible engine sizes: 4.3L, 5.0L, 5.7L, 6.5L, 7.4L V6/V8 variants
• Confirm replaceable OEM numbers such as ADR0089 and 40012098 before ordering

What are the electrical specifications and physical features?

The unit delivers 100 amps at 12 volts with a clockwise rotation and a 6-groove clutch pulley. It uses insulated copper windings and factory-style mounting points to match the original alternator form, fit and function.

• Output: 100A, Voltage: 12V, Rotation: CW (clockwise)
• Pulley: 6-groove clutch pulley compatible with serpentine belt systems
• Design: IR/IF (internal regulator) electrical architecture
• Construction: upgraded copper windings and improved insulation to reduce heat and power loss

How easy is installation and what tests does it pass?

This alternator is manufactured to OE-style specifications for a bolt-in replacement that uses the same mounting points and electrical connectors as factory units. Each unit undergoes no-load and load testing to check charging performance and durability prior to shipping.

• Direct replacement: OE-standard design for straightforward swap-out installation
• Pre-shipment tests: no-load and load electrical verification to ensure performance
• Includes one alternator and protective packaging; installation guidance provided
• Backed by an 18-month warranty and seller support for fitment or defects

Who is this product for? If you own a late‑1990s to early‑2000s Chevy, GMC, Isuzu or Cadillac truck, SUV or van and are facing charging problems, this A-NAFTULY ADR0089 alternator is intended for DIY mechanics and professional installers who want a robust, high-output replacement without modifying the vehicle. It’s suited for drivers needing reliable alternator performance for long drives, towing, or restoring a vehicle to dependable daily use. Before placing an order, verify vehicle year, engine size and OEM part number to ensure correct fitment.