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ACDelco

ACDelco Gold 38159 Drive Belt Tensioner Assembly with Pulley

  • Based on 1,613 reviews
Condition: New
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This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026

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Availability: Only 6 left in stock, order soon!
Fulfilled by Amazon
Arrives Saturday, Nov 15
Order within 4 hours and 36 minutes
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Features

  • Designed to keep drive belt at proper tension
  • Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
  • Premium aftermarket replacement part
  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Description

ACDelco Gold (Professional) 90 Degree Molded Accessory Drive Belt Tensioner Assemblies are the high quality alternative to Original Equipment (OE) parts. These 90 degree molded belt tensioner assemblies are very important in optimal operation of the accessory belt drive system. The tensioner maintains the correct amount of tension on the belt throughout operation. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.

Brand: ACDelco


Belt Style: mechanical drive belt


Item Weight: 1 Pounds


Color: Aluminum w/ Black Pulley


Manufacturer: ACDelco


Manufacturer: ‎ACDelco


Brand: ‎ACDelco


Model: ‎ACDelco - Automatic Belt (B) (38159)


Item Weight: ‎1 pounds


Product Dimensions: ‎8.8 x 4.8 x 3.6 inches


Item model number: ‎38159


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎88996998


OEM Part Number: ‎88996998


Date First Available: October 10, 2007


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Nov 15

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews

    • 07 Escalade Ext
Doing well, brought this one since parts store only had ones with little 1/4 socket holder. Which broke when tried to pull the tensioner back to put AC belt back on, but had no issues with this one just like factory one which had a bad bearing trying to get stuck. Was simple to install though and way better quality than the 1/4 rachet tensioners for sure ... show more
Reviewed in the United States on October 3, 2025 by Zack
    • Durable
Good quality and durable
Reviewed in the United States on October 11, 2025 by Amazon Customer
    • Better then the others, well made
I have tried the cheap tensioners on here, This AC Delco holds up and is obviously well made in comparison, do yourself a favor and get this one..
Reviewed in the United States on September 7, 2025 by John
    • Real Deal
Review Image by Amazon Customer Amazon Customer
Review Image by Amazon Customer Amazon Customer
It’s the OEM replacement at half the price of your local parts stores Chicom version. Mine had 260k and had just started to develop slight slack in the bearing. Decided to replace it while I had the belt off.
Reviewed in the United States on August 27, 2025 by Amazon Customer Amazon Customer
    • A/C Belt Tensioner
This tensioner is the factory OEM part. It fit perfectly on my Suburban. My application was a 1/2-ton 2002 Chevrolet Suburban LS, 4WD with the 5.3L flex-fuel (up to E-85) engine option. You can tell your vehicle is flex-fuel if there is a "Z" in the 8th position of your VIN: 1GNFK16Z02J14xxxx for example. If you are ordering this part, chances are your engine makes a clattering noise with the A/C on and may also snap the A/C serpentine belt. There have been several TSB's on this issue and an inumerable number of web postings. The clattering may happen at all RPM's or just a range of them. This is the TSB number with the latest information. #03-01-38-019A - (Sep 3, 2004) Here it is in a nutshell. The system is experiencing liquid slugging of the compressor. Several things may cause this occur. One, if someone servicing the system put in way too much oil. This is probably the least likely reason. Two, if you are low on refrigerant, you can get insufficient scavaging of oil out of the compressor as well as the possibility of freezing the evaporator over such that the refrigerant isn't boiled off before it gets back to the compressor on the suction side. The low pressure cut-out switch SHOULD prevent this from happening but that's another item to look at. My low-pressure switch was showing signs of oil seepage and I replaced it. The local flippin' dealer charged me $64 for one. Buy it on-line. Save a bundle. Three, possibly too much refrigerant can cause slugging. Don't use one of those re-charge in a can with one pressure gauge on top. You can easily overcharge the system and not know it even when you follow the directions and even having the factory shop manual with the pressure-temperature charts. Ask me how I know. I also, NOW own a proper set of refrigerant gauges so you can monitor both the high and low pressure. Either get the gauges or have a shop verify the system is charged properly. If system is charged properly and the clatter still persists, the compressor is bad and replace it. Don't waste your time on anything else. If your system has been open for more than a few hours, you should replace the accumulator/drier as well since the desiccant is probably saturated. I didn't replace my accumulator/drier since my system was only open long enough to replace one tube and the compressor. It works just fine. If you're unsure about the maintenance on the system it might be a good idea to replace the accumulator/drier since they are not that expensive. My compressor began to exhibit this behavior at about 160,000 miles. The compressor my vehicle used was the Denso compressor and I bought it at Amazon as well: Denso 471-0316 New Compressor with Clutch. On my OEM compressor, there was a label on the face of the compressor pulley identifying it as a Denso. The schrader valve on my tube was leaking so I bought this from Amazon too: ACDelco 15-33179 Air Conditioner Evaporator Tube ... show more
Reviewed in the United States on January 14, 2013 by Jonathan D. Williams
    • Works
Came with a gates instructions. This is 8$ less than the gates brand and it looks to be a gates product
Reviewed in the United States on September 2, 2025 by Todd M
    • Fit like OEM on 2006 Silverado
It fit perfect and looked like OEM. It has been on a 2006 Silverado, with 5.3L engine, for a little over 2 months and maybe 4,000 miles and is still working. I replaced the belt at the same time that I replaced the tensioner.
Reviewed in the United States on June 30, 2025 by A
    • Works good.
Thanks
Reviewed in the United States on August 15, 2025 by Ernie L.

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