Search  for anything...
ACDelco

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

  • Based on 2,390 reviews
Condition: New
Checking for the best price...
$26.00 Why this price?

Buy Now, Pay Later

As low as $6 / 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, Apple Pay, and PayTomorrow. 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 refund/replacement until Jan 31, 2026

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: Only 6 left in stock, order soon!
Fulfilled by Amazon
Arrives Apr 27 – Apr 28
Order within 9 hours and 45 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


Item Weight: 1 Pounds


Color: Aluminum w/ Black Pulley


Manufacturer: ‎ACDelco


Brand: ‎ACDelco


Model: ‎Drive Belt Tensioner


Item Weight: ‎1 pounds


Product Dimensions: ‎8.8 x 4.8 x 3.6 inches


Item model number: ‎38158


Is Discontinued By Manufacturer: ‎No


Exterior: ‎Machined


Manufacturer Part Number: ‎88929140


OEM Part Number: ‎88929140


Date First Available: October 10, 2007


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Apr 27 – Apr 28

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

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Encountered No Issues
This part was easy to install and fit perfectly in my vehicle.
Reviewed in the United States on October 31, 2025 by Walt
    • Good product. Works as advertised
Good Delco part that arrived in a reasonable amount of time. Worked as advertised
Reviewed in the United States on July 18, 2025 by Mary Kate
    • Fits!
2005 silverado 5.3 - this is the one you want. Just like oem, easy install. Can't go wrong
Reviewed in the United States on October 18, 2025 by Matthew Ouellette
    • Great part at a good price
Do yourself a favor and get the genuine OEM parts from AC Delco I went to two different auto parts stores to get their "cheaper" in house parts and when I installed them the bearing inside the pulley would still rattle and squeal. Autozones Duralast is garbage so is the murry brand or whatever the sell at O'Reilly they also sell AC Delco but at a hyper inflated price. I got the AC Delco tensioner on here (amazon) along with an idler pulley they were sent over night and at my door before I woke up this morning and at less than half of the price of the auto parts stores. I changed the parts out in about 20-30 minutes it would be the third time ive changed the tensioner in a week im a pro now but definitely worth getting your parts on amazon again don't buy duralast or any other parts from your local parts store get them here ... show more
Reviewed in the United States on April 22, 2024 by Miguel corona
    • Fits perfectly
Received on time
Reviewed in the United States on May 2, 2025 by Robert Hatcher
    • Nice tensioner
Fits perfect
Reviewed in the United States on October 26, 2025 by Amazon Customer
    • Belt Tensioner
Great. Fast Delivery to NZ.
Reviewed in the United States on October 24, 2025 by stu littlejohn
    • a
works awesome great quality
Reviewed in the United States on September 26, 2025 by Kevin Nuding

Can't find a product?

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