ACDelco Gold 335-1068 105A Alternator for GM Trucks & SUVs — All-New, Tested Replacement

This ACDelco Gold alternator is a complete new-unit replacement engineered to match the original equipment’s fit and electrical output while upgrading internal components for extended life. Every internal part is brand-new and lubricated where needed, and the assembly undergoes computer testing for voltage stability, terminal function, and circuit-board integrity. Constructed with an aluminum case and ISO-guided manufacturing, it’s designed to meet the demands of heavy-duty use and to restore charging performance on compatible vehicles.

Which vehicles does this alternator fit?

This unit covers a range of GM and related models from the mid-1990s to early 2000s, offering a direct replacement for many trucks and SUVs. Confirming fit by year, model, engine, and original part number is recommended before purchase to ensure compatibility.

• Cadillac Escalade 1999–2000
• Chevrolet Astro, Blazer, CK/1500–3500 pickups, Express, S-10, Silverado, Suburban, Tahoe (various years 1996–2002)
• GMC CK pickups, Jimmy, Safari, Savana, Sierra, Sonoma, Yukon, Yukon Denali (1996–2002 variations)
• Isuzu Hombre and Oldsmobile Bravada models (late 1990s)

How does this alternator handle heavy use and harsh conditions?

The 335-1068 uses greased key components and improved internal engineering to reduce wear and maintain consistent output under load. Its aluminum case helps dissipate heat, and ACDelco’s computer testing verifies voltage regulation and electronic integrity before the unit ships.

• Amperage rating: 105 A for robust charging capacity
• Greased internals for longer operational life in severe conditions
• Aluminum housing for thermal management and corrosion resistance
• Rigorous voltage and circuit-board testing to prevent electrical faults

What quality assurances and testing does ACDelco provide?

This alternator is manufactured to ISO-guided quality standards and undergoes multi-point computer testing to confirm function and reliability. Each unit is also inspected to detect manufacturing defects in materials and workmanship before it reaches the customer.

• 100% new components—no rebuilt or reman parts
• Computer-tested for voltage stability and terminal function
• Electronic circuit board integrity checks ensure reliable regulation
• Engineered enhancements to match form, fit, and function of OE units

How simple is installation and what should I check before swapping?

Installation follows standard alternator replacement steps, but confirming vehicle fitment and matching mounting, pulley type, and electrical connectors is essential. If your vehicle has additional electrical accessories or an upgraded stereo, verify that the 105 A output meets your system needs.

• Verify OEM part number or cross-reference 88877278/335-1068
• Match mounting points, pulley style, and electrical plug configuration
• Disconnect battery before removal and reconnect after verifying belt tension
• Test charging voltage after installation to confirm correct operation

Who is this for: This ACDelco Gold alternator is aimed at technicians, DIYers, and fleet managers restoring charging reliability on late‑1990s to early‑2000s GM vehicles and similar models. If you need a like‑for‑like replacement with new internals, ISO-guided manufacturing, and a tested voltage regulator for dependable charging, the 335-1068 (88877278) provides a professional aftermarket option engineered to meet original equipment expectations.