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ACDelco

ACDelco Gold 38001 (88909582) Idler Pulley

  • Based on 2,529 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Oct 22
Order within 6 hours and 21 minutes
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Features

  • Helps keep the drive belt properly aligned and routed.Material:steel
  • 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) Accessory Drive Belt Pulleys are a high quality alternative to Original Equipment (OE) parts. When the accessory pulleys are rotated due to drive belt motion, they cause the accessory drive belt to activate. 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.

Manufacturer: ‎ACDelco


Brand: ‎ACDelco


Model: ‎ACDelco - Idler Pulley (B) (38001)


Item Weight: ‎10.2 ounces


Product Dimensions: ‎3.6 x 3.6 x 2 inches


Item model number: ‎38001


Exterior: ‎Machined


Manufacturer Part Number: ‎88909582


OEM Part Number: ‎88909582


Date First Available: October 10, 2007


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Oct 22

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.

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Top Amazon Reviews

    • Smooth Performance and Excellent Build Quality
This ACDelco Gold idler pulley is top‑notch. Installation was straightforward, and it fit perfectly without any adjustments. The bearing runs smooth and quiet, eliminating the squeak I was dealing with before. The construction feels solid, with durable materials that inspire confidence it will last for years. I’ve put a few hundred miles on since replacing it, and the belt tracks perfectly with no wobble or noise. It’s clear this part is engineered to OEM standards, and I appreciate the reliability ACDelco delivers. If you’re looking for a dependable replacement pulley that installs easily and performs flawlessly, this one is a great choice. Highly recommend! ... show more
Reviewed in the United States on November 20, 2025 by Mike Howell
    • Works just fine.
Bought this for my 2005 mustang gt 4.6. Fits perfectly and works great. Same quality as the local auto parts store but a little cheaper if you don’t mind waiting a couple of days. I wasn’t in a hurry at all so worked out perfectly for me. Would recommend.
Reviewed in the United States on March 1, 2026 by Josh Alexander
    • Great product
Great item, works perfectly and easy to install,A++++++
Reviewed in the United States on June 17, 2026 by Customer
    • Seems like a genuine part
Did great and quite for a daily/long distance drive vehicle. Had no issues with it after 10k miles and would buy it again if my serpentine belt layout wasn’t modified now.
Reviewed in the United States on February 5, 2026 by Zane martin
    • Works well
Works well, same size / perfect fit. I also purchased a bodeman to replace the lower idler pulley. I think the bodeman is a little nicer / bearings seem a little smoother, but that was not available for this when I purchased. Thus 4 stars for this instead of 5.
Reviewed in the United States on August 22, 2026 by joe
    • Acdelco quality part
Chasing a noise from the bad Caldone power steering pump purchased, I let the internet convince me it might be a pulley, so I bought one. The pulley is good quality but wasn’t the problem.
Reviewed in the United States on April 7, 2026 by The Consumer
    • OEM part for a good price arrived quickly
What I received was an original OEM part. For my 1999 Chevy S10 it fit perfectly, functioned flawlessly and took just 5 minutes to install. I found this part in the local part stores for 50 to 100% more money so I received good value for an OEM part from Amazon and it came right to my door in two days (quicker if needed). Note for some applications: your OEM pulley may come with a keeper washer that holds the bolt in place. This old keeper washer can be pulled off with pliers and discarded. It must have been some assembly aid when your rig came off the assembly line and it not essential for function - pull it off and throw it away if you find one in your case. For my 1999 Chevy S10, torque was 35 to 37 foot pounds. The Amazon 'fit guide' has been very reliable in my experience. Thanks to Amazon for supplying the right part for a fair price and delivering it to my door. ... show more
Reviewed in the United States on June 8, 2025 by pje
    • Excelente
Este producto cumplió con las expectativas, quedó bien en Chevy S10 1998, el producto decía que no era nuevo y venía en caja abierta pero en realidad cuando llegó estaba nuevo y en un precio casi regalado en comparación de comprarlo en AutoZone
Reviewed in the United States on September 11, 2026 by juan

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