Search  for anything...
ACDelco

ACDelco Gold 38158 Drive Belt Tensioner Assembly with Pulley, Aluminum w/ Black Pulley

  • Based on 2,581 reviews
Condition: New
Checking for the best price...
$39.34 Why this price?
Save $28.44 was $67.78

Buy Now, Pay Later

As low as $9 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Oct 6
Order within 9 hours and 19 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

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


Material: Aluminum


Belt Style: serpentine belt


Compatible Devices: Vehicles


Item Weight: 16 ounces


Brand Name: ACDelco


Number of Items: 1


Manufacturer: ACDelco


Unit Count: 1 Count


Warranty Description: Limited Lifetime Warranty (Parts Only). Please seefor more details.


Global Trade Identification Number: 54


UPC: 021625584454


Included Components: Drive Belt Tensioner


Item Type Name: Drive Belt Tensioner


Style Number: 38158


Part Number: 88929140


Compatible Devices: Vehicles


Item Weight: 16 ounces


Belt Style: serpentine belt


Color: Aluminum w/ Black Pulley


Material Type: Aluminum


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 6

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Very smooth, very quiet operation, just like factory
Review Image by steve fuller
Review Image by steve fuller
I will only buy GM original parts or ACDelco for my 2005 Z71 crewcab. I’ve been down the fraction of the price, can’t pronounce the name parts from Amazon and will not go down that road ever again. OEM is the only way to go. Especially on a part like this that is constantly moving and needs to last 60,000 to 120,000 miles. My previous one (OEM) was on there 116,000 miles. I’ll take that again. So I’ll pay the extra and not repeat this and have to buy another one in a few thousand miles. ACDelco Gold is the ticket. This thing fit perfectly, and zero noise. Smooth as glass operation. My old one was rubbing on the tensioner arm, making a scraping sound.. wore out. The new one looks purty under there. And works great. Always buy OEM, GM original parts or ACDelco only. You won’t be sorry, but trust me. ... show more
Reviewed in the United States on May 28, 2026 by steve fuller
    • Quality part
Fit perfectly on 2006 GMC Sierra 1500 5.3 liter
Reviewed in the United States on June 12, 2026 by Clint McCord
    • Quality tensioner
Quality replacement for factory tensioner no difficulties to install.
Reviewed in the United States on May 25, 2026 by Mav
    • Works okay. 07/08 5.3 Vortec Silverado
07/08 5.3 Vortec, Silverado. Easy fast install. Feels heavy duty. OEM at a fair price. So far okay. Pulley is identical in material as the original when vehicle was purchased new. It is non metallic but very sturdy. The old pulley still looked brand new.
Reviewed in the United States on December 5, 2025 by Tig
    • Exact fit,good tension
Great price,the pulley feels kinda cheap,but so far so good,no squeaks.
Reviewed in the United States on December 24, 2025 by Bill Davis
    • Great replacement
Work perfectly for gmc 2001 1500
Reviewed in the United States on April 7, 2026 by khoi
    • Fits like OEM
Review Image by Visionz
Feels and looks like OEM. This item was a breeze to install and had a much smoother operation than my old one that i had been neglecting to change. It gives the engine a cleaner look and eliminated the slight squeal that the old one was starting to make.
Reviewed in the United States on November 21, 2025 by Visionz
    • Pulley
Good fit
Reviewed in the United States on May 24, 2026 by Elias Perez

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...