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Engines and Components Belts and Pulleys

Mercedes-Benz

Drive Belt Idler Pulley

$52.00 $49.50 Save $2.50

SKU: MB1772020019

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
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Easy — 1–2 hours

Overview

The Mercedes-Benz Drive Belt Idler Pulley is a Genuine Mercedes replacement part manufactured in Germany. This smooth idler pulley works with the tensioner assembly to maintain belt tension and guides the belt around engine accessories.
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The Genuine Mercedes Drive Belt Idler Pulley (Part # 1772020019) is a direct replacement component designed to maintain proper accessory drive belt tension and routing. This smooth pulley plays a crucial role alongside the tensioner assembly to ensure the belt operates efficiently around power steering pumps, water pumps, A/C compressors, and alternators. Manufactured in Germany, this part is a Genuine Mercedes-Benz component, ensuring it meets the strict quality standards set by the manufacturer. The drive belt idler pulley is often overlooked but is critical for the proper functioning of the accessory drive system. It is recommended to replace the idler pulley concurrently with the belt tensioner during routine maintenance. Symptoms of a failing idler pulley can include visible wear or grooves on the pulley surface, belt squealing, chirping or grinding sounds from the pulley bearing, uneven belt wear, or a noticeable misalignment of the pulley relative to its mounting surface. These signs indicate that the pulley may need replacement to prevent further issues with the accessory drive system. This idler pulley is compatible with a wide range of Mercedes-Benz models, including various AMG GT, GLC, E-Class, G-Class, SL-Class, and S-Class variants from approximately 2015 through 2025. Specific fitment details should always be confirmed with the vehicle's VIN.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandMercedes-Benz
Part NumberMB1772020019
CategoryEngines and Components

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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