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ACDelco Professional 38103 Drive Belt Tensioner Assembly with Pulley

4.6 4.6 out of 5 stars 1,403 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
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Purchase options and add-ons

  • 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
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ACDelco Professional 38103 Drive Belt Tensioner Assembly with Pulley
ACDelco Professional 38103 Drive Belt Tensioner Assembly with Pulley
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AUQDD 38103 Belt Tensioner (For 4.3L/5.0L/5.7L/7.4L) Fit For 99-00 Escalade /96-05 Chevy Astro Blazer 96-99 C1500 K1500 Express Silverado 1500 Tahoe /96-05 GMC Jimmy Sonoma 96-99 Savana Sierra Yukon
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X AUTOHAUX Idler Pulley for Chevrolet Express Silverado 1500 2500 3500 for GMC Savana Sierra 36299 Idler Pulleys with Bolt 17 mm 0.67" Insert Dust Shield Retainer Spacer Steel Rubber Black
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ACDelco Gold 38321 Drive Belt Tensioner Assembly with Pulley
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Price$32.66$24.99$26.99$23.31$17.49$95.16
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 Monday, Apr 1
Customer Ratings
Easy to install
4.7
4.4
4.3
Value for money
4.3
3.9
4.1
Sold By
Amazon.com
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From the manufacturer

Certainty Starts Here

THREE TIERS OF A PREMIUM PORTFOLIO

GM OE

ACDelco Gold

ACDelco Silver

GM ORIGINAL EQUIPMENT

GM Genuine Parts and ACDelco Original Equipment are the true OE parts installed during production or validated by General Motors for GM vehicles. These maintenance, repair, powertrain and collision components are designed and engineered to meet rigorous standards set by General Motors.

GOLD

ACDelco Gold parts are the high-quality alternative to OE parts. These parts are manufactured to meet expectations for fit, form and function, making them a smart choice for General Motors vehicles and many makes and models, including special applications.

SILVER

ACDelco Silver parts are high-quality, high-value options for General Motors vehicles, as well as for most makes and models.

Our History

OUR HISTORY – OUR ROOTS EMPOWER US

ACDelco has been at the forefront of automotive innovation since the birth of GM in 1908. Since then, we’ve helped a woman fly around the world and a man traverse the surface of the moon.

However, our history isn’t half as promising as our future. We continue forward with GM Genuine Parts by our side. From the assembly line to the finish line, we’re building innovation and improvement on a foundation of GM Original Equipment.

GM Genuine Parts and ACDelco are proud to work together as the only source for true General Motors Original Equipment and aftermarket parts – past, present and future.

Product 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.

Product information

Technical Details

Additional Information

Warranty & Support

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Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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ACDelco Professional 38103 Drive Belt Tensioner Assembly with Pulley


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Customer reviews

4.6 out of 5 stars
4.6 out of 5
1,403 global ratings

Customers say

Customers like the quality, fit and value of the auto part. For example, they mention it's well made, fits perfectly and is great value for money. Opinions are mixed on the squeaking.

AI-generated from the text of customer reviews

45 customers mention33 positive12 negative

Customers like the quality of the auto part. They say it's well-made, and of a high quality. Some say it looks like a great quality product, but they were unable to use it. Overall, most are satisfied with the quality and performance of the product.

"Good product" Read more

"Seems to be a good quality part but box was opened and was indeed a gates tensioner, not acdelco." Read more

"...This tensioner has a similar quality to the OEM one I had and it helped me tremendously to regain the tension needed for my new belt...." Read more

"...about 5 years ago with a cheap AAP part, it did it's job but quality was missing...." Read more

39 customers mention33 positive6 negative

Customers like the fit of the auto part. For example, they say it fits perfectly on a Chevy Silverado 2004 4.3l and is the best price.

"...350.. arrived early and undamaged in original packaging.. stock oem fits perfect.." Read more

"installed this on my 1998 c1500 a few months back perfect fit and working great I would recomend this part . cheaper here then on rock auto !" Read more

"Fit perfectly seems to be good but won't know for a while." Read more

"Installed on 1998 Chevy 7.4 liter. Fits just like it should. Good quality, but not as good as OEM...." Read more

36 customers mention36 positive0 negative

Customers are satisfied with the performance of the auto part. They mention that it works well, handles tension well, and is a solid performer. Some say that the OEM equipment is always good.

"This belt tensioner came with the bolt included, and it’s been working perfectly for the last 10k miles" Read more

"Purchased for 1999 Chevy S10 LS 4×4, works great, just like the original." Read more

"Worked great" Read more

"installed this on my 1998 c1500 a few months back perfect fit and working great I would recomend this part . cheaper here then on rock auto !" Read more

27 customers mention27 positive0 negative

Customers find the installation of the auto part to be easy and fast. They mention that it comes with Gates instructions and is a direct fit.

"Easy to install. Took about 15 minutes. Thought it was value for my money but now I’m having same problem I had with the old one...." Read more

"Half the price of parts store...lots of tension in that spring...install is a breeze" Read more

"Easy to take off and bolt on! Stopped the squeaking the belt was making." Read more

"Easy to install, part is a perfect fit." Read more

17 customers mention17 positive0 negative

Customers appreciate the value of the auto part. They say it has OEM fitment and quality.

"Good part inexpensive" Read more

"Half the price of parts store...lots of tension in that spring...install is a breeze" Read more

"A well made, high quality AC Delco part at a reasonable price. Thank you!..." Read more

"...consistently out performs aftermarket parts, and the cost is closely aligned with aftermarket. I highly recommend OEM in all repairs" Read more

16 customers mention8 positive8 negative

Customers are mixed about the squeaking of the auto part. Some mention that it eliminates the Squealing belt and is easy to install, while others say that it just gave and is making that screeching noise once more.

"Solved my noise issue." Read more

"Been on a little over a month and the bearings are making noise. I'll get a new one from NAPA." Read more

"Easy to take off and bolt on! Stopped the squeaking the belt was making." Read more

"...When I turned the engine on to test the new tensioner the new one started squeaking worse then the one I replaced. Not happy with it." Read more

8 customers mention3 positive5 negative

Customers are mixed about the tension of the auto part. Some mention that it has the right tension and has a new bolt, while others say that it didn't have enough tension and destroyed 2 belts.

"...Wish I had kept the old one. This doesn't have enough spring tension. I can move it with my hand with the belt in place...." Read more

"...I know a good one from a bad one. This one has the right tension and has a new bolt. Very Happy." Read more

"...Another issue is that the tensioner is either a faulty part, or something else is wrong with my vehicle...." Read more

"...probably about six months had to buy a new one because it wouldn’t hold tensions on the belt...." Read more

Speed and quality
5 Stars
Speed and quality
Perfect fit 2013 Chevy Silverado 1500 4.3
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Top reviews from the United States

Reviewed in the United States on July 15, 2023
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5.0 out of 5 stars Speed and quality
Reviewed in the United States on January 26, 2024
Perfect fit 2013 Chevy Silverado 1500 4.3
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Top reviews from other countries

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Michael
5.0 out of 5 stars Works, seems solid, feels like OEM
Reviewed in Canada on November 3, 2023
Victor arturo ramirez
5.0 out of 5 stars Igual a la original
Reviewed in Mexico on October 23, 2022
Matt Davis
5.0 out of 5 stars Fit perfectly
Reviewed in Canada on June 26, 2022
MDiaz
5.0 out of 5 stars Si son piezas originales
Reviewed in Mexico on May 28, 2021
Regis Cloutier
5.0 out of 5 stars Just like OEM!
Reviewed in Canada on July 21, 2021