Best Car Idler Pulleys of 2025

"I found that it didn't fit my idler pulley for my 95 K3500 350SBC, but it worked perfectly for my tensioner pulley. It operates quietly, and since it's an OEM bearing, I expect it to last another 130,000 miles and 30 years without issues."

"As always with ACDelco, this is a perfect product! I've been using their pulleys and numerous parts for decades, and I've always been satisfied with their quality."

"I bought a pair for my 2010 F150 5.4L, and they fit perfectly. They are just as well made as the original OEM parts—solid and smooth operation. Definitely a premium part worth the extra cost!"

"I purchased this to replace my worn-out idler pulley and it was a perfect fit and function. It arrived on time and in great condition."

"For my 2004 GMC Sierra 1500, it came just as pictured, but I found it lacked some original components. The pulley has a wobble that made it feel cheap, but the affordable price was a plus."

"I replaced the idler pulley on my Ford Taurus, and it was easy to install and fits perfectly. I've had no issues with it at all and would definitely recommend this product!"

"I had no issues with this item. It fits and functions perfectly."

"As a direct OEM replacement for my 2008 Yukon Denali, I replaced the tensioner pulley along with this idler pulley while changing the serpentine and A/C belts at 126K miles. This idler pulley is a quality part and the price was great on Amazon. However, I noticed the wrong size indicated in the listing: it claims to be 5.2 x 5.2 x 1.5 inches, which is incorrect. It's actually a bit over 3.5 inches in diameter, just like my original pulley. The installation was straightforward with a 15mm socket and a 3/8 ratchet. Just remember to torque it to 30 ft lbs when reinstalling the belt. In summary, it's a great part at a great price, despite the confusing size listing."

"This is a nice OEM quality part. I prefer not to use a cheap bearing that might fail."

"I found this pulley to be compatible with my 5.0 and 5.8 Ford trucks, keeping the original-sized belt."

"Using this as a 6 rib pulley for my performance car, I was impressed with the quality."

"After replacing the pulley that came with my A/C pump delete bracket, I noticed metal shavings were an issue, but I'm glad I got this one as a replacement."

"This pulley worked perfectly as a replacement for my Ford truck. The original lasted 142,000 miles, and now I'm back on the road!"

"Although I had to buy a smaller belt after changing my plans, I found the installation to be straightforward and am satisfied with the quality."

“I noticed my original bearing was a bit worn out, so I decided to get this new one to replace it alongside the water pump for my 95 F150 5.8. Shipping was prompt, and I'll update my feedback if it doesn't perform as expected.”

“This bearing works perfectly for my 2010 Dodge Nitro and is the same size as the previous one.”

“I was dealing with a terrible whining noise in my 2007 Commander, which turned out to be due to this bearing breaking down after 170k miles. It was an easy fix, and now my motor runs quietly again.”

“I’m quite frustrated. The product description claimed it was made in the USA, but when it arrived, the package clearly stated it was made in China. I paid a premium thinking I was getting a domestic product, which is very disappointing. However, I believe it will function well.”

"I ordered this pulley for my '04 Impala SS because my old one had seized up. I was impressed that it arrived quickly through Prime. The quality materials are evident, and it spins smoothly. I feel confident about its performance."

"My boyfriend's car had an awful squeaky noise. After replacing the tensioner pulley, the noise is gone, and now it just rumbles like his ‘93 Mustang should!"

"I got my 2003 Jaguar X-Type back on the road with this part. While the installation was a challenge, I watched some YouTube videos and created my own tension bar. Overall, I would recommend this part if your drive belt system is causing issues."

"I found this product to be a great fit and performance for my wife's 2014 Acura RDX. After replacing the idler pulley, the belt and idler are now nice and quiet. Just make sure to use the right serpentine belt tool for installation!"

"This idler pulley has been really good for me. While I know there are better options out there, I'm satisfied with its performance. It's fairly priced and looks good too. I would consider buying it again!"

"I replaced my squeaking pulley with this one, and it was a direct replacement. It arrived right on time and works perfectly!"

“I had a failed AC compressor on my truck, and since I'm on a tight budget, I decided to use this pulley as a replacement for a different one. After replacing the belt with a shorter one to bypass the old pulley on my 2003 F150, it worked great!”

“The installation was extremely easy for me. I just needed a 15mm socket and I was all set! No more squeaks and the belt stays on the pulley perfectly. I installed it on an LS6 C5 Corvette, but I believe it fits many other LS engine applications.”

“I was very pleased with this product, it has a great price and I didn’t have to buy the whole tensioner. Overall, I am very satisfied with my purchase.”

"I found that it fit perfectly on my 2005 Liberty Sport 3.7L. It seems to be well made and is just as good as the old one which melted after the AC compressor locked up. I would buy this pulley again if needed, but the lack of measurements in the description was frustrating."

"Installation on my '05 Silverado 2500HD 6.0L was a breeze. Now it runs nice and quiet!"

"This pulley was a perfect replacement for the drive belt wheel on my '97 V6 Mustang. It works flawlessly!"

"I had a squealing idler pulley and this was the perfect replacement part to fix my truck."

"I didn't realize how bad my part was, so I was glad I ordered this with everything else."

"This is working great on my 2010 Ram 1500 5.7 Litre. It eliminated the crazy whine I had before!"