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ACDelco Gold 335-1086 Alternator

4.4 4.4 out of 5 stars 993 ratings

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  • 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
  • Manufactured to meet or exceed strict quality requirements
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ACDelco Gold 335-1086 Alternator
ACDelco Gold 335-1086 Alternator
Recommendations
Alternator Replacement New for 99-07 Chevrolet Silverado 1500, 02-06 Avalanche Express 1500, 02-04 Cadillac Escalade, 99-07 GMC Sierra 1500, 03-06 Envoy, 00-04 Yukon 4.3 5.3 6.0 8.1L, 40012204 ADR0290
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105Amp New Alternator Replacement for Cadillac Chevy C Truck Tahoe Silverado 1500 2500 3500 4.3 4.8 5.3 6.0L 2000 2001 2002 2003 2004 335-1086 8247 10464455 ADR0215 40012139 0464455 88877296 8247N
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A-Premium Alternator Compatible with Chevrolet/Chevy, Cadillac, GMC Vehicle Models, 4.3L 4.8L 5.0L 5.3L 5.7L 6.0L 6.5L 6.6L 8.1L, 12V 105A CW 6-Groove Pulley, Replace# 8247N 10480388 10464438 19244727
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160 Amp New Alternator Replacement for 07-14 Cadillac Escalade 6.0 6.2L, 07-13 Chevy Silverado 1500 4.3 4.8 5.3L, 07-14 Tahoe 5.3L,07-13 GMC Sierra 1500 4.3 4.8 5.3L,07-14 Yukon 6.2L ADR0369 400-12253
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New Alternator for 2000-2002 Cadillac Escalade Chevy Avalanche Express Suburban Silverado Tahoe GMC Savana Sierra Yukon XL, ADR0217 10464405 10464443 400-12172 321-1749 8237 8274
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Price$127.78$93.69$82.99$82.99$111.99$99.00
Delivery
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Wednesday, Apr 3
Customer Ratings
Easy to install
4.4
4.8
5.0
5.0
Value for money
3.9
3.2
3.0
4.9
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From the manufacturer

Good Maintenance Practices

There is a cooling fan in most alternators to keep it from overheating. Making sure that the fan is clean will help the fan and alternator run properly.

It is also important that all electrical connections are kept clean and firmly attached, which will make sure the battery is being properly charged by the alternator.

Signs of Wear and Troubleshooting

Engine doesn’t turn over or start.

Loss of battery power.

Some loss of electrical power (dimming headlight, etc.).

Grinding or squeaking noise.

Alternator warning light illuminates.


ACDelco Professional

The Professional category of high-quality aftermarket auto parts and products covers most GM vehicles as well as many other makes and models (varies by product line). Most of the current ACDelco line falls into this category, which is a high-quality alternative to GM OE products.

FAQs

Q: Can I be assured that the unit will last, especially in extreme weather?

A: Yes. These alternators are designed to withstand a wide range of weather conditions.

Q: Do all alternators supply the same amperage?

A: No. Some vehicles require more amperage than others depending on the amount of electronics that need to be operated. Consult the vehicle information for proper application.

Product Description

ACDelco Professional New Alternators are manufactured with all new components, and are the high quality replacement ideal for many vehicles on the road today. Key components are lubricated to help ensure improved performance and long life reliability even in the toughest conditions. Alternators have regulators that are computer tested for voltage stability, terminal function, and electronic circuit board integrity. These premiums aftermarket replacement components are manufactured to meet your expectations for fit, form, and function.

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
For warranty information about this product, please click here [PDF ]

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ACDelco Gold 335-1086 Alternator


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What's in the box

  • Alternator
  • Product guides and documents

    Looking for specific info?

    Customer reviews

    4.4 out of 5 stars
    4.4 out of 5
    993 global ratings

    Customers say

    Customers like the performance, fit, quality and value of the auto part. For example, they mention that it works okay, fits perfectly and charges the battery. They appreciate the value for money. Opinions are mixed on noise and charging.

    AI-generated from the text of customer reviews

    77 customers mention57 positive20 negative

    Customers like the performance of the auto part. They say it works okay, is easy to return and reorder, and has zero issues.

    "Installed with minimal hassle and has been working well for several months." Read more

    "It works great. Easy to install." Read more

    "Still working and charging, HOWEVER, there should be an option during purchase to be able to return the core for money back or a returned core charge..." Read more

    "the alternator is not working appropiately, is not charging correctly, my truck dies after 15 min. the voltage keeps dropping...." Read more

    58 customers mention52 positive6 negative

    Customers like the fit of the auto part. For example, they say it fits perfectly, works well, and is easy to install. Some mention that the B+ terminal is tight and the bearings are quiet.

    "Alternator fit as indicated. Fixed low voltage, battery not charging issue on dash. Replaced in the driveway...." Read more

    "Fast delivery. Part fit vehicle and east installation...." Read more

    "Perfect fit for my 2001 Silverado.And the price was affordable." Read more

    "This alternator fit perfectly on my 2001 Suburban 5.3 . Looks identical to the original part, works good." Read more

    57 customers mention45 positive12 negative

    Customers like the quality of the auto part. They say it's an original product, built great, and works well. Customers also mention that it looks brand new and should last a long time.

    "...Pros:Seems well built. Brand new-not a poorly re-manufactured unit like most other units at and above this price...." Read more

    "This alternator fit perfectly on my 2001 Suburban 5.3 . Looks identical to the original part, works good." Read more

    "great product and good price." Read more

    "...Michigan this is a professional series that is built in China and is sub par compared to the real acdelco from Michigan...." Read more

    42 customers mention42 positive0 negative

    Customers appreciate the value of the auto part. They mention it's a great brand and price, and has saved them a lot of money. Some say that the service and price are good.

    "Perfect fit for my 2001 Silverado.And the price was affordable." Read more

    "...It is a great price and it arrived the next day with free ground shipping. 2002 chevy silverado 4.8...." Read more

    "...to replace my alternator on my truck, this was the one I needed, price was great...." Read more

    "Easy to install replaced the one in my 2000 chevy silverado, great value for the money" Read more

    39 customers mention39 positive0 negative

    Customers find the installation of the auto part to be easy. They mention that the bolts slide properly into place and there are no problems months after installation.

    "Installed with minimal hassle and has been working well for several months." Read more

    "It works great. Easy to install." Read more

    "...Once you've worked it out, I found that it's easier to get the new one in if you take a hammer and gently work the little sleeves in the front..." Read more

    "This was a perfect replacement for my Chevy Silverado. Easy Install...." Read more

    19 customers mention17 positive2 negative

    Customers like the replacement. They say it's a direct replacement for the original alternator, works as expected, and is easy to install. Some customers also mention that the alternator is brand new and has never been installed.

    "This was a perfect replacement for my Chevy Silverado. Easy Install...." Read more

    "...for the 5.3 vortec but take it this way, its a OEM replacement part, its new, and it beats all auto parts stores prices...." Read more

    "...This new alternator is brand new, works great, and should last a long time. Just wish I would have purchased this one in the first place." Read more

    "...if it had been opened before, but as far as I could tell, the alternator was brand new and had never even been installed...." Read more

    36 customers mention11 positive25 negative

    Customers are mixed about the noise of the auto part. Some mention that it works great without making a noise, while others say that it makes a whining noise like a wind up toy.

    "...of 2022 and was working fine for about 2-3 months then the whining came back and recently it’s been screeching when I turn on my truck I’m looking..." Read more

    "Works well but does make a whining noise like you’re hiding a supercharger under the hood. More noticeable at lower RPM’s." Read more

    "...I heard other complain about noise. Mine does not make noise. over 1000 miles and works as it should...." Read more

    "Noisy, voltage fluctuates have to rev engine to get it to be normal" Read more

    25 customers mention10 positive15 negative

    Customers are mixed about the charging of the auto part. Some mention that it charges fine, while others say that it starts flaking out and intermittently not charging.

    "Alternator fit as indicated. Fixed low voltage, battery not charging issue on dash. Replaced in the driveway...." Read more

    "...It pushes about 14v and started charging the battery immediately." Read more

    "...and all of the sudden my car started telling me that my battery wasn't charging and slowed down...." Read more

    "...So far now whining from it and it does charge my interstate battery very well but I'm just waiting for the china crap to go out...." Read more

    2005 Silverado 2500 Diesel - Perfect fit - Mounting instructions below
    5 Stars
    2005 Silverado 2500 Diesel - Perfect fit - Mounting instructions below
    Straight drop in for my 2005 Duramax diesel. Immediately was charging at 14.4 volts. Keep in mind there are bushings that the mounting bolts go through and they will most likely need to be pushed back out to make room for the new alternator to drop right in. If you go to drop in your new alternator and it appears too tight or won't fit in - DO NOT HAMMER IT OR FILE DOWN THE ALTERNATOR... just make a little press. Take a look at my pictures above, I just used a long spare bolt & nut and found a socket large enough to fit over the outside of the bushing but small enough to rest on the mounting cradle. I then pushed the bolt though the socket and attached the nut on the other end (see pics). I then took an open ended wrench on each end and tightened the bolt until the bushing moved forward and was flush with the mounting cradle. There are only two bushings and they are both up front. After this the alternator dropped right in and I bolted it up. When you tighten the bolts on the new alternator, the bushings will move forward and fit snug on the new alternator making a tight and aligned fit. I hope this helps!
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    5.0 out of 5 stars 2005 Silverado 2500 Diesel - Perfect fit - Mounting instructions below
    Reviewed in the United States on December 22, 2022
    Straight drop in for my 2005 Duramax diesel. Immediately was charging at 14.4 volts. Keep in mind there are bushings that the mounting bolts go through and they will most likely need to be pushed back out to make room for the new alternator to drop right in. If you go to drop in your new alternator and it appears too tight or won't fit in - DO NOT HAMMER IT OR FILE DOWN THE ALTERNATOR... just make a little press. Take a look at my pictures above, I just used a long spare bolt & nut and found a socket large enough to fit over the outside of the bushing but small enough to rest on the mounting cradle. I then pushed the bolt though the socket and attached the nut on the other end (see pics). I then took an open ended wrench on each end and tightened the bolt until the bushing moved forward and was flush with the mounting cradle. There are only two bushings and they are both up front. After this the alternator dropped right in and I bolted it up. When you tighten the bolts on the new alternator, the bushings will move forward and fit snug on the new alternator making a tight and aligned fit. I hope this helps!
    Images in this review
    Customer image Customer image Customer image Customer image
    Customer imageCustomer imageCustomer imageCustomer image
    5 people found this helpful
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    Top reviews from other countries

    Translate all reviews to English
    PIERRE LAMONTAGNE
    5.0 out of 5 stars Installation de l’alternateur ac Delco
    Reviewed in Canada on February 14, 2024
    ian arthur price
    5.0 out of 5 stars work perfectly
    Reviewed in Canada on February 18, 2024
    Daniel E Lopez
    5.0 out of 5 stars AC DELCO ALTERNATOR 335 1086
    Reviewed in Canada on November 25, 2023
    Amazon Customer
    5.0 out of 5 stars Perfect replacement
    Reviewed in Canada on January 22, 2020
    Erv
    1.0 out of 5 stars Perfect Fit! but now the voltage is fluctuating.
    Reviewed in Canada on February 20, 2023
    Customer image
    Erv
    1.0 out of 5 stars Perfect Fit! but now the voltage is fluctuating.
    Reviewed in Canada on February 20, 2023
    2001 Silverado, 5.3L. Fits perfect, quiet, and puts out 14.5 Volts. Driven with it about 200 miles, works like the original did. Good buy!

    5/28/2023 - Update - Well I though the alternator was great, seems about a week ago whenever using signals, windows, brakes, almost any electical accessory, my voltmeter now bounces up and down in my guage cluster. I have load tested the battery, and checked voltage, which is bouncing up and down a few volts. I have check all grounds and bulbs, which are all good. Never had this with any other alternator. HMMMM maybe I should have bought at the local parts store, then I could get an exchange. Not even 6 months old.....not to impressed!
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