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          Gates 36434 - Accessory Drive Belt Idler Pulley

          MPN: 36434
          The Gates 36434 Accessory Drive Belt Idler Pulley ensures optimal engine performance by maintaining proper belt tension. Crafted for durability and easy installation.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $45.95
          In stock

          Product Overview

          The Gates Accessory Drive Belt Idler Pulley part number 36434 is an essential component for maintaining optimal engine performance in your Mercedes-Benz. Designed to replace worn or damaged pulleys, this high-quality idler pulley ensures that the belt drive system operates efficiently, preserving the proper tension needed for various engine components. Crafted from premium-grade materials, the Gates Idler Pulley is built to last, meeting or exceeding OEM specifications, which means you can trust it to provide a perfect fit for your vehicle, specifically for those requiring part number 2782020519. The idler pulley features smooth operation, significantly reducing vibration and noise, which helps to prevent belt slip and ensures the smooth functioning of critical components like the alternator, power steering pump, and air conditioning compressor. Choose Gates 36434 for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Gates 36434 is equivalent to or replaces the following part numbers: ACDelco 36434, Goodyear 50079, Litens 900665A, Mercedes-Benz 2782020519, NAPA Belts/Hose 36434, Tendeco 900665.

          Vehicle Compatibility

          • Mercedes-Benz GLE63 AMG 5.5 V8 (2017–2019)
          • Mercedes-Benz GLE63 AMG S 5.5 V8 (2017–2019)
          • Mercedes-Benz CLS63 AMG S 5.5 V8 (2017–2018)
          • Mercedes-Benz CLS550 4.7 V8 (2016–2018)
          • Mercedes-Benz GLS550 4.7 V8 (2016–2019)
          • Mercedes-Benz G63 AMG 5.5 V8 (2016–2019)
          • Mercedes-Benz S550 4.7 V8 (2014–2019)
          • Mercedes-Benz SL550 4.7 V8 (2014–2019)
          • Mercedes-Benz E550 4.7 V8 (2014–2016)
          • Mercedes-Benz S63 AMG 5.5 V8 (2014–2017)

          This may also fits other applications. Please use the vehicle selector tool to verify fitment.

          Why Shop at eEuroparts.com?

          • Proven Expertise: Over 25 years of experience with European vehicles means we know your car inside and out.
          • Exclusive Kits That Fitâ„¢ - complete repair solutions with no guesswork
          • Fitment Confidence: Our accurate cataloging ensures you get the right part the first time.
          • Fast, Reliable Shipping: Orders ship quickly from our U.S.-based warehouses.
          • Transparent Pricing: Competitive prices with no hidden fees or surprise charges.
          • Established Trust: Serving the European auto community since 2000.

          Frequently Asked Questions

          What does the Gates 36434 Accessory Drive Belt Idler Pulley do?

          The idler pulley plays a crucial role in the belt drive system of your vehicle, maintaining the proper tension of the accessory drive belt. This ensures that the alternator, power steering pump, and air conditioning compressor operate smoothly and efficiently.

          How do I know if my Accessory Drive Belt Idler Pulley needs replacement?

          Common symptoms indicating the need for replacement include unusual noises during engine operation, visible wear on the pulley, and issues with belt slippage. If you notice these signs, it may be time to replace your idler pulley to ensure optimal engine performance.

          Can I install the Gates 36434 myself?

          Yes, the installation of the Gates 36434 Accessory Drive Belt Idler Pulley can be performed as a DIY project. However, ensure you have the proper tools and follow safety precautions to avoid any potential issues.

          What are the symptoms of a faulty Accessory Drive Belt Idler Pulley?

          Common symptoms of a failing idler pulley include excessive noise from the engine bay, visible damage or wear on the pulley, and belt slippage that may cause accessory components to malfunction. Proper inspection is essential to prevent further engine issues.

          Why should I choose Gates for my Accessory Drive Belt Idler Pulley needs?

          Gates is a trusted brand known for high-quality automotive components that meet OEM standards. Order Gates 36434 today for a factory-correct replacement that restores safety and performance.

          Note: All information on this page and in the FAQ is for general reference only. Verify fitment and consult a professional as needed. eEuroparts.com is not responsible for incorrect part selection or installation.

            • eEuroparts SKU
              291331
            • Weight
              0.33 lbs
            • Dimensions (L x W x H)
              3.5 x 1.875 x 3.5 in
            • Barcode
              00072053073171
            • Manufacturer Part #
              36434
          • Brand
            Gates
          • Manufacturer
            Gates
          • MPN
            36434
          • Part Type
            Accessory Drive Belt Idler Pulley
          • OE Part Numbers
            2782020519
          • Cross Reference Numbers
            36434, 50079, 900665A, 900665
          • Features
            Bearing Bore Inside Diameter : 17
            Contact Surface : V-Ribbed Grooved
            Contents : Pulley, Bolt, Dust Shield, Retainer
            Grade Type : OE Exact
            Material : Thermoplastic
            Pulley 1 Flanged : Yes
            Pulley 1 Groove Quantity : 6
            Pulley 1 Outside Diameter (mm) : 65
            Pulley 1 Width (mm) : 25
            Pulley Quantity : 1
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2020Mercedes-BenzSL550Base (4.7 V8 GAS)Position: Grooved Pulley
          2019Mercedes-BenzGLE63 AMG4Matic (5.5 V8 GAS)Position: Grooved Pulley
          2019Mercedes-BenzGLE63 AMG S4Matic (5.5 V8 GAS)Position: Grooved Pulley
          2019Mercedes-BenzGLS5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2019Mercedes-BenzGLS63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2019Mercedes-BenzSL550Base (4.7 V8 GAS)Position: Grooved Pulley
          2019Mercedes-BenzSL63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2018Mercedes-BenzCLS5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2018Mercedes-BenzCLS550Base (4.7 V8 GAS)Position: Grooved Pulley
          2018Mercedes-BenzCLS63 AMG S4Matic (5.5 V8 GAS)Position: Grooved Pulley
          2018Mercedes-BenzG63 AMGBase (5.5 V8 GAS)Position: Upper, Notes: W/65mm Dia. Pulley
          2018Mercedes-BenzGLE63 AMG4Matic (5.5 V8 GAS)Position: Grooved Pulley
          2018Mercedes-BenzGLE63 AMG S4Matic (5.5 V8 GAS)Position: Grooved Pulley
          2018Mercedes-BenzGLS5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2018Mercedes-BenzGLS63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2018Mercedes-BenzSL550Base (4.7 V8 GAS)Position: Grooved Pulley
          2018Mercedes-BenzSL63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2017Mercedes-BenzCLS5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2017Mercedes-BenzCLS550Base (4.7 V8 GAS)Position: Grooved Pulley
          2017Mercedes-BenzCLS63 AMG S4Matic (5.5 V8 GAS)Position: Grooved Pulley
          2017Mercedes-BenzE550Base (4.7 V8 GAS)Position: Grooved Pulley
          2017Mercedes-BenzG63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2017Mercedes-BenzGLE63 AMG4Matic (5.5 V8 GAS)Position: Grooved Pulley
          2017Mercedes-BenzGLE63 AMG S4Matic (5.5 V8 GAS)Position: Grooved Pulley
          2017Mercedes-BenzGLS5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2017Mercedes-BenzGLS63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2017Mercedes-BenzMaybach S5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2017Mercedes-BenzS5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2017Mercedes-BenzS550Base (4.7 V8 GAS)Position: Grooved Pulley
          2017Mercedes-BenzS63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2017Mercedes-BenzSL550Base (4.7 V8 GAS)Position: Grooved Pulley
          2017Mercedes-BenzSL63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2016Mercedes-BenzCLS5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2016Mercedes-BenzCLS550Base (4.7 V8 GAS)Position: Grooved Pulley
          2016Mercedes-BenzCLS63 AMG S4Matic (5.5 V8 GAS)Position: Grooved Pulley
          2016Mercedes-BenzE550Base (4.7 V8 GAS)Position: Grooved Pulley
          2016Mercedes-BenzE63 AMG S4Matic (5.5 V8 GAS)Position: Grooved Pulley
          2016Mercedes-BenzG63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2016Mercedes-BenzGL5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2016Mercedes-BenzGL63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2016Mercedes-BenzGLE63 AMG4Matic (5.5 V8 GAS)Position: Grooved Pulley
          2016Mercedes-BenzGLE63 AMG S4Matic (5.5 V8 GAS)Position: Grooved Pulley
          2016Mercedes-BenzS5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2016Mercedes-BenzS550Base (4.7 V8 GAS)Position: Grooved Pulley
          2016Mercedes-BenzS63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2016Mercedes-BenzSL550Base (4.7 V8 GAS)Position: Grooved Pulley
          2016Mercedes-BenzSL63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2016Mercedes-BenzSLK55 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2015Mercedes-BenzCLS5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2015Mercedes-BenzCLS550Base (4.7 V8 GAS)Position: Grooved Pulley
          2015Mercedes-BenzCLS63 AMG S4Matic (5.5 V8 GAS)Position: Grooved Pulley
          2015Mercedes-BenzE550Base (4.7 V8 GAS)Position: Grooved Pulley
          2015Mercedes-BenzE63 AMG4Matic (5.5 V8 GAS)Position: Grooved Pulley
          2015Mercedes-BenzE63 AMG S4Matic (5.5 V8 GAS)Position: Grooved Pulley
          2015Mercedes-BenzG63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2015Mercedes-BenzGL5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2015Mercedes-BenzGL63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2015Mercedes-BenzML63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2015Mercedes-BenzS5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2015Mercedes-BenzS550Base (4.7 V8 GAS)Position: Grooved Pulley
          2015Mercedes-BenzS63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2015Mercedes-BenzSL550Base (4.7 V8 GAS)Position: Grooved Pulley
          2015Mercedes-BenzSL63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2015Mercedes-BenzSLK55 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzCL5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzCL63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzCLS5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzCLS550Base (4.7 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzCLS63 AMG4Matic (5.5 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzCLS63 AMG S4Matic (5.5 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzE5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzE550Base (4.7 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzE63 AMG4Matic (5.5 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzE63 AMG S4Matic (5.5 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzG63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzGL450Base (4.7 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzGL5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzGL63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzML550Base (4.7 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzML63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzS5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzS550Base (4.7 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzS63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzSL550Base (4.7 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzSL63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2014Mercedes-BenzSLK55 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2013Mercedes-BenzCL5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2013Mercedes-BenzCL63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2013Mercedes-BenzCLS5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2013Mercedes-BenzCLS550Base (4.7 V8 GAS)Position: Grooved Pulley
          2013Mercedes-BenzCLS63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2013Mercedes-BenzE5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2013Mercedes-BenzE550Base (4.7 V8 GAS)Position: Grooved Pulley
          2013Mercedes-BenzE63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2013Mercedes-BenzG63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2013Mercedes-BenzGL450Base (4.7 V8 GAS)Position: Grooved Pulley
          2013Mercedes-BenzGL5504Matic (4.7 V8 GAS)Position: Grooved Pulley
          2013Mercedes-BenzGL63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          2013Mercedes-BenzML550Base (4.7 V8 GAS)Position: Grooved Pulley
          2013Mercedes-BenzML63 AMGBase (5.5 V8 GAS)Position: Grooved Pulley
          There are more vehicles this part is compatible with. Check if it fits your vehicle.
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          Warranty Overview

          At eEuroparts, we stand behind the quality of the products we sell. Every part we offer is backed by a warranty designed to give you peace of mind and protect your investment.

          Standard Warranty – Most Parts

          • Coverage: 2 years or 24,000 miles (whichever comes first) from purchase date.

          • Protection: Defects in materials or workmanship under normal personal use.

          • Eligibility: Applies only to the original purchaser and the vehicle where the part was first installed.

          • Exclusions:

            • Wear-and-tear items (brake pads, filters, bulbs, wipers, etc.)

            • Commercial, fleet, rideshare, off-road, or racing use

            • Improper installation, misuse, accidents, or modifications

          • Not Covered: Labor, shipping, towing, or incidental costs.

          Bison Performance Warranty – Our House Brand

          • Coverage: Limited Lifetime Warranty for as long as you own your vehicle.

          • Applies To: All products sold under the Bison Performance label.

          • Premium Protection: Goes beyond our standard warranty — if it’s a Bison product, the 2-year/24k mile limit is replaced with lifetime coverage.

          • Exclusions: Same as the standard warranty (normal wear, commercial use, improper installation, etc.).

          • What’s Included: Replacement of the defective product (labor and shipping excluded).

          Warranty Claim Requirements

          To keep claims fast and fair, we require:

          • Proof of purchase (invoice or order confirmation).

          • Photos or videos showing the defective part, order number, date, VIN, and odometer reading.

          • Diagnostic reports or part returns for non-visible issues may be requested.

          • Claims must be truthful, properly documented, and reflect normal consumer use.

          Buy With Confidence: We back our products because we believe in their quality, with a transparent, customer-first warranty process you can trust. And with Bison Performance products, you’ll enjoy Limited Lifetime protection—an assurance few brands can match.

          For full details and exclusions, please see our complete Warranty Terms & Conditions.

          This summary is for convenience only. For full warranty coverage details, exclusions, and requirements, see our official Warranty Terms & Conditions. In case of conflict, the full policy governs.

          Return Policy Overview

          Most parts can be returned within 30 days of delivery if unused, uninstalled, and in original packaging.
          To start a return, contact customer support via Chat or Contact Us.

          • Restocking fee: Up to 20% may apply for certain orders (buyer’s remorse, order errors, or special-order items)

          • Refunds: Issued to your original payment method within 3–5 business days after inspection

          • Exchanges: Not automatic — please return and reorder

          • Replacements: May be approved for incorrect or defective items reported within 7 days

          Not returnable:

          • Used or installed parts

          • Electrical components

          • Opened filter kits, gaskets, or contaminated items

          • Final sale or custom orders

          Important Notes:

          • Return shipping is your responsibility unless we made a verified error

          • Fitment is the customer’s responsibility (we can assist, but do not guarantee)

          • Country of origin may vary and is not grounds for return

          For complete details, please see our full Return Policy.


          This Returns summary is provided for convenience only. All returns, refunds, and exchanges are subject to the complete Returns Policy. In the event of any conflict, the full policy governs.

          Fast, Reliable Shipping — Straight to Your Door

          We ship most orders the same day when placed before 2 PM CST (Monday–Friday). Our main warehouse is just east of Nashville, TN, and we also ship from multiple locations nationwide to get your order to you as quickly as possible.

          • We use trusted carriers like UPS, FedEx, and USPS.

          • Tracking info is emailed to you as soon as your order ships.

          • Delivery estimates at checkout are based on carrier data, but not guaranteed.

          Need help with a shipment?

          If your order is missing, damaged, or incorrect, just let us know within 5 days of delivery. We’ll walk you through the quick claim process — including a few photos to help us make things right.

          For complete details, please see our full Shipping Policy.


          This Shipping summary is provided for convenience only. Delivery times, carrier terms, fees, restrictions, risk of loss, and other details are governed by our complete Shipping Policy. In the event of any conflict, the full policy governs.

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