SKU: 23885989052

Accessory Drive Belt Idler Pulley (75mm) - BMW / E8x 135i / E9x 335i / E84 X1 / N55

Sale price$27.00 Regular price$30.00
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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9

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Description

Accessory Drive Belt Idler Pulley (75mm) - BMW / E8x 135i / E9x 335i / E84 X1 / N55The drive belt idler pulley works in conjunction with the tensioner pulley tensioner assembly to maintain tension on the belt as well as guide the belt. Idler pulleys are also used to achieve ideal belt routing around the engine drive accessories such as the power steering pump, water pump, A C compressor, and alternator. The idler pulley is an often overlooked maintenance item but it is just as important as the belt tensioner itself. In most cases it

The drive belt idler pulley works in conjunction with the tensioner pulley/tensioner assembly to maintain tension on the belt as well as guide the belt. Idler pulleys are also used to achieve ideal belt routing around the engine drive accessories such as the power steering pump, water pump, A/C compressor, and alternator.

The idler pulley is an often overlooked maintenance item but it is just as important as the belt tensioner itself. In most cases it is recommended to replace the idler pulley at the same time as the belt tensioner.

Drive Belt Idler Pulley Failure Symptoms
  • Visible wear or grooves on pulley
  • Belt squealing
  • Chirping or grinding sounds coming from pulley bearing
  • Odd or uneven belt wear
  • Misalignment of pulley when compared to mounting surface



Part #'s

11-28-7-578-674 / 11 28 7 578 674 / 11287578674


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SKU: 23885989052

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4.0 ★★★★★
Based on 7 reviews
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soma
Cuba, US
★★★★★ 4
Very spacious and beautiful
Size: 23.6 Inch, Color: White, Size: 23.6 Inch, Color: White
A lot of my books fit on here and there’s still more room left if I wanted to buy more books. It’s a simple looking bookshelf but it’s really pretty. It’s also sturdy the only reason I gave it a 4 stars instead of 5 was because it comes with its own plastic screw anchors and they are crap. The shelves were wobbly when we installed them using the plastic screw anchors that came with the packaging. My dad set mine up and luckily he had a bunch of his own so he switched them out with better screw anchors. Once we made that switch it was perfect, there was no wobble or shaking at all. So that’s my only piece of advice. Besides for the screw anchors everything else is perfect
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Reviewed in the United States on August 25, 2024
B
Verified Purchase
BWW
Lake Worth, US
★★★★★ 5
Easy to install
Size: 23.6 Inch, Color: White
Super easy to install. I use different wall anchors. The anchors like all anchors that come with shelves are not great. The shelves look very clean on the wall.
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Reviewed in the United States on March 31, 2026
V
Verified Purchase
Vinnae
Pawtucket, US
★★★★★ 5
Easy to install
Size: 23.6 Inch, Color: White, Size: 23.6 Inch, Color: White
This product exceeded my expectations. The installation process was incredibly straightforward—even for someone with little to no experience—and the instructions were clear and easy to follow. Once installed, it feels very sturdy and secure, with no wobbling or shifting at all. You can tell it’s well-designed and made with quality materials. I also appreciated how quickly I was able to set everything up without needing any extra tools or help. Overall, it’s a reliable, user-friendly product that I would absolutely recommend to anyone looking for something dependable and easy to install. Drill is required though.
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Reviewed in the United States on March 30, 2026
M
Verified Purchase
Mac
Natrona Heights, US
★★★★★ 5
It holds up weight
Size: 23.6 Inch, Color: White
Nice boards. I will order again
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Reviewed in the United States on April 4, 2026
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Verified Purchase
Dania La Rosa
Waukegan, US
★★★★★ 1
Don't buy
Size: 23.6 Inch, Color: White
The shelf is very flimsy and not sturdy at all. It feels unstable and poorly made. Definitely not worth the money, I wouldn’t recommend wasting your time or money on this product.
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Reviewed in the United States on February 22, 2026

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