A-NAFTULY Alternator Replacement 100A 12V for Chevy GMC 1996-2002 — ADR0089 High-Output, Direct-Fit

High-output A-NAFTULY alternator ADR0089 (40012098) — a direct-fit 100A, 12V replacement built to restore charging performance on many 1996–2002 Chevy, GMC, Isuzu and Cadillac V6/V8 trucks and SUVs.

This premium aftermarket alternator is engineered to match OE fit and function while offering upgraded internal components for more reliable starts and consistent electrical output. It fits a wide range of C/K, Suburban, Tahoe, Blazer, Astro, Silverado, Yukon, Escalade and other GM-family vehicles with 4.3L through 7.4L engines from 1996 to 2002. Designed with pure copper windings, calibrated rotor and stator, and improved insulation, the ADR0089 aims to reduce heat and electrical loss compared with worn or low-quality units.

Which vehicles and engines does this A-NAFTULY alternator fit?

This alternator is intended for many GM and related models from 1996–2002. Before ordering, confirm compatibility with your exact year, model, engine displacement and OEM part number to ensure correct fitment.

• Compatible models: Chevy C/K 1500/2500/3500, Suburban, Silverado, Tahoe, Blazer, Astro, S10, Express, Sonoma
• Also fits: GMC Sierra, Yukon, Savana, Safari, Jimmy; Isuzu and Cadillac Escalade applications
• Engine coverage: 4.3L, 5.0L, 5.7L, 6.5L, 7.4L V6/V8 engines (1996–2002)
• Confirm OEM cross-reference: ADR0089, 40012098 and related numbers listed in product details

How does the ADR0089 improve charging and reliability?

Internal upgrades focus on electrical efficiency and thermal management so the alternator produces steadier voltage under load and during start-up. Improved insulation and pure copper windings reduce power loss and help prevent shorts and premature wear.

• Rated output: 100 Amp at 12 Volt for robust accessory support
• Construction: pure copper wire with calibrated rotor and stator for stable output
• Heat control: enhanced external insulating coating to dissipate heat and reduce losses
• Pulley: clockwise rotation (CW) with 6-groove clutch pulley for OEM belt compatibility

Is installation straightforward and what testing does it pass?

The unit is manufactured to OE standards for direct replacement and should bolt in using existing mounting points and connectors. Each alternator undergoes no-load and load testing as part of quality control to help ensure reliable operation out of the box.

• OE standard design for direct-fit replacement—no modification expected
• Passed no-load and load quality tests to verify performance before shipping
• Includes one alternator in protective packaging plus a welcome guide and warranty info
• 18-month limited warranty and seller support for installation or defects

How do I confirm this alternator replaces my OEM part number?

Cross-referencing the listed OEM numbers with your vehicle’s original alternator or parts guide is the fastest way to verify match. Many common part numbers are replaced by ADR0089, but double-checking prevents returns and fitment issues.

• Primary cross-reference: ADR0089 and 40012098
• Additional numbers: 8104636510, 110-8206, 334-2454, 10480167 and many more as listed in product details
• Check your vehicle’s under-hood label or service manual to confirm exact part number
• Contact support with your VIN or alternator stamping if uncertain

Who is this for? Owners, mechanics and DIY enthusiasts who need a reliable, high-output alternator designed to directly replace worn or failed units on GM-family trucks and SUVs from 1996 to 2002. This part is suited for vehicles carrying heavy electrical loads—accessories, towing, or older charging systems—where a tested, OE-form alternator with upgraded internals offers better day-to-day dependability. Always confirm vehicle compatibility and OEM cross-reference before purchase.