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ACDelco 335 1040 Professional Alternator Review

3

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Average

Revainrating 3.5 out of 5  
Rating 
3.7
🔋 Starters & Alternators, 🏎️ Performance Car Parts & Accessories

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Description of ACDelco 335 1040 Professional Alternator

All components are 100% NEW to provide improved performance. Key components are greased to ensure long term reliability in harsh conditions. NEW units are manufactured under the guidelines of ISO Quality Standards to ensure consistent quality. ACDelco Professional NEW Alternators are computer tested for voltage stability, terminal function, and electronic circuit board integrity. Engineering enhancements to internal components provide the latest, most efficient unit for your vehicle.

Reviews

Global ratings 3
  • 5
    2
  • 4
    0
  • 3
    0
  • 2
    0
  • 1
    1

Type of review

Revainrating 5 out of 5

So far so good in terms of starters and alternators

Last 2 alternators I've tried here from other suppliers, different brands failed after a little over a year, either the bearing or the regulator failed the building . Thought I'd try a factory GM alternator and see if it lasts as long as the original one, 20+ years.

Pros
  • great product
Cons
  • not bad

Revainrating 5 out of 5

It's hard to go wrong with a brand new ACDelco part

On some work I have found that the positive battery cable has continuity to ground. I traced it and found an internal short in my old alternator. Instead of buying an aftermarket rectifier that fits an old used alternator, I spent a little more and got a brand new OEM one. The voltage is now stable and slightly increased. The old alternator was still charging and I might not have even noticed the problem if I hadn't done other work on the car. I ordered this alternator for a Camaro 90 and up…

Pros
  • . Satisfied so far
Cons
  • Update available

Revainrating 1 out of 5

ONLY BUY IF YOU WANT IT RETURNED!

Base model 1992 Chevrolet Caprice sedan with 5.0 V8. (without police/taxi package). The part was purchased to replace a generator that failed more than 100 miles from home. (sounded like rocks and a cat in a blender). Ordered this and paid extra for overnight delivery. Took the car to a trusted mechanic. When I started the car the battery light was on. The engine began to stall and run rough. I had to rev the engine to keep it running. The interior lights flicker. The force will "splash" and…

Pros
  • Best in its niche
Cons
  • I will add later