ACDelco Gold 335-1068 105 Amp Alternator – New GM, Chevrolet, Cadillac, GMC & Isuzu Replacement

Technical Specifications

Note: The supplied specifications do not establish the pulley groove count, electrical connector type, or precise voltage rating. Confirm these details against the vehicle’s original equipment before purchasing.

ACDelco Part Numbers and Replacement Identification

This alternator is identified by the following manufacturer part numbers:

• ACDelco Gold: 335-1068
• ACDelco / GM Reference: 88877278

These numbers are useful when comparing replacement alternators or identifying the correct part for your vehicle.

Always confirm that the replacement matches the original alternator’s electrical output, mounting configuration, pulley, and connector.

Reliable 105 Amp Charging Performance

Your vehicle’s alternator generates electrical power while the engine is running and helps recharge the battery after starting.

A properly functioning alternator supports essential electrical systems, including:

• Engine management and ignition electronics
• Fuel injection systems
• Headlights and exterior lighting
• Heating and air conditioning
• Power windows and door locks
• Factory audio systems
• Trailer-related electrical accessories
• Battery charging during normal operation

The ACDelco Gold 335-1068 provides a rated 105 Amp output intended for compatible factory charging systems.

For trucks and SUVs equipped with towing accessories or additional electrical equipment, confirming adequate alternator capacity is especially important.

100% New Construction – Not Remanufactured

One of the primary benefits of the ACDelco Gold 335-1068 is its new construction.

Rather than rebuilding a previously used alternator, ACDelco manufactures this unit with new components designed to meet applicable replacement-part specifications.

This approach helps provide consistent component quality and avoids relying on previously worn internal parts.

For owners maintaining older GM trucks, SUVs, and vans, a newly manufactured alternator can be an attractive alternative to a remanufactured replacement.

Computer-Tested Voltage Regulation

Proper voltage regulation is essential to maintaining a healthy automotive electrical system.

Excessively low charging voltage can leave the battery undercharged, while excessive voltage can damage electrical components.

ACDelco states that its Professional New alternators undergo computer-based testing of regulator voltage stability, terminal function, and electronic circuit board integrity.

These quality-control procedures are designed to identify defects and help ensure dependable electrical performance.

Designed for Durability in Demanding Conditions

Many vehicles covered by the ACDelco Gold 335-1068 application list are older trucks, vans, and SUVs that may still be used for commuting, hauling, towing, and commercial work.

The alternator features lubricated internal components designed to support long-term reliability.

Its aluminum housing provides a durable structure while helping manage weight and operating temperatures.

ACDelco also advertises engineering improvements to internal components and manufacturing processes intended to deliver dependable replacement performance.

Common Symptoms of a Failing Chevrolet or GMC Alternator

A failing alternator may cause:

• Battery warning light illuminated on the dashboard
• Dim or flickering headlights
• Repeated dead battery problems
• Difficulty restarting after driving
• Unusual whining or grinding noises
• Intermittent electrical accessory operation
• Low or inconsistent charging voltage
• Engine stalling after the battery becomes discharged

These symptoms can also result from weak batteries, corroded battery cables, poor grounds, worn serpentine belts, and damaged charging-system wiring.

Before replacing the alternator, test the battery and charging system to confirm the source of the problem.

For additional automotive electrical troubleshooting and DIY repair information, visit My Pro Street Online.

ACDelco Gold vs. GM Genuine Parts Alternators

ACDelco Gold and GM Genuine Parts are different product lines.

ACDelco Gold components are premium aftermarket replacements designed for a wide range of compatible vehicles.

GM Genuine Parts components are marketed as original equipment replacement parts engineered to GM OE specifications.

The ACDelco Gold 335-1068 offers premium aftermarket construction, computer-tested electrical components, and 100% new manufacturing.

For owners of older Chevrolet and GMC vehicles, this makes it a practical replacement option when the original alternator has failed.

Installation Recommendations

Before installing the ACDelco Gold 335-1068 alternator, disconnect the negative battery terminal and follow the applicable vehicle service procedure.

Compare the new alternator with the original assembly, checking mounting points, electrical connectors, pulley alignment, and output rating.

Inspect the serpentine belt, belt tensioner, battery terminals, and charging-system wiring during replacement.

After installation, verify charging-system performance using appropriate diagnostic equipment.

If the vehicle continues to experience charging problems, inspect the battery, grounds, cables, and charging-system controls before assuming the replacement alternator is defective.

Why Choose the ACDelco Gold 335-1068 Alternator?

The ACDelco Gold 335-1068 offers a premium aftermarket replacement solution for select Chevrolet, GMC, Cadillac, Isuzu, and Oldsmobile vehicles.

With its 105 Amp rated output, 100% new construction, computer-tested voltage regulation, aluminum housing, and manufacturer-advertised quality-control processes, this alternator is designed to restore dependable charging-system performance.

Whether you’re maintaining a Chevrolet Tahoe, restoring a GMC C/K pickup, or repairing an older GM van or SUV, the ACDelco Gold 335-1068 provides a replacement option backed by ACDelco’s established automotive parts engineering.

Shop replacement alternators and automotive electrical components at Pro Street Online. Find the correct charging-system replacement and keep your vehicle running reliably.