DAYCO 89649 Slack Automatic Belt Tensioner 036687822819

( Brand: Dayco ), ( Manufacturer Part Number: 89649 ), ( Part Type: Belt ), ( Product Type: Engine ), ( UPC: 036687822819 ), ( Fitment Type: Direct Replacement ), ( Partslink Number: 30650957, 31251653 ), ( Compatible Model S : S40, C70, C30, V50 ), ( Fitnote: Location ), ( Location: Alternator And A/c ), ( Product Subtype: Engine Pulleys ), ( Series: No Slack ), ( Product Details: Drive Belt Tensioner ), ( Placement On Vehicle: Need One ), ( Department: Replacement )

Review DAYCO For Volvo No Slack Automatic Belt Tensioner Assembly fits S40 2006–2011

Introducing the Dayco 89649, a premium quality automatic belt tensioner specifically designed for Volvo S40 models from the years 2006 to 2011. This essential component is crucial for maintaining the optimal performance and longevity of your vehicle's belts and engine.

The Dayco 89649 is an upgraded alternative to the original equipment, engineered with advanced technology and materials to enhance durability and reliability. Its robust design ensures that it can effectively manage the tension of the vehicle's belts, thereby preventing slippage and ensuring consistent power transmission from the engine to the accessories.

This automatic belt tensioner features a slip yoke design, which allows for smooth and efficient belt movement while maintaining the proper tension. The slip yoke also helps to absorb any vibrations and shock that may be generated by the engine or other components, reducing the strain on the belts and prolonging their lifespan.

The Dayco 89649 is manufactured with high-strength materials, including precision-machined steel and hardened components, ensuring that it can withstand the rigors of daily use. Its durability is further enhanced by a protective coating that shields it from the elements and corrosion, ensuring long-lasting performance.

Installing the Dayco 89649 is a straightforward process that can be completed by most DIY enthusiasts or a professional mechanic. It comes with all necessary hardware and instructions, making the replacement process hassle-free and convenient.

By upgrading your Volvo S40 with the Dayco 89649 automatic belt tensioner, you can enjoy the peace of mind that comes with knowing your vehicle's belts are properly tensioned and your engine is running at its best. This upgrade not only enhances the overall performance of your vehicle but also helps to prevent costly repairs or replacements down the line.

In conclusion, the Dayco 89649 automatic belt tensioner is a must-have upgrade for Volvo S40 owners from the years 2006 to 2011. With its advanced design, superior durability, and ease of installation, it offers a cost-effective and reliable solution for maintaining the optimal performance and longevity of your vehicle's belts and engine.

The Dayco 89649 is a serpentine belt and automatic belt tensioner assembly specifically designed for Volvo S40 models from 2006 to 2011 with the SLACK automatic belt tensioning system. Replacing this component is an essential part of regular vehicle maintenance, as a worn-out or damaged belt could lead to various engine issues. Let's discuss the pros and cons of buying a Dayco 89649 for your Volvo S40.

1. OEM Quality: The Dayco 89649 is an Original Equipment Manufacturer (OEM) part, meaning it is manufactured to the same standards as the original component that came with your vehicle. This ensures a proper fit and reliable performance.

2. Complete Assembly: This kit includes both the serpentine belt and the automatic belt tensioner, making it a convenient one-stop solution for replacing these parts.

3. Improved Performance: A new tensioner assembly can help improve the overall performance of your engine by ensuring the serpentine belt is properly tensioned, reducing the likelihood of belt slippage or premature wear.

4. Peace of Mind: By using an OEM part like the Dayco 89649, you can have confidence that your vehicle's power steering, air conditioning, and other accessories are functioning optimally.

1. Cost: OEM parts, such as the Dayco 89649, tend to be more expensive compared to aftermarket alternatives. However, the investment in a high-quality part can save you money in the long run by reducing the need for frequent replacements or repairs.

2. Installation Complexity: Replacing the serpentine belt and automatic belt tensioner assembly can be a complex job, especially for those without automotive experience. It may be necessary to consult a professional mechanic for the installation process.

The Dayco 89649 is an excellent choice for replacing the serpentine belt and automatic belt tensioner assembly on your Volvo S40, thanks to its OEM quality, complete assembly, and improved performance benefits. Although the cost and installation complexity may be drawbacks, the long-term reliability and peace of mind offered by this high-quality part make it a worthwhile investment. If you're unsure about the installation process, it's recommended that you consult a professional mechanic to ensure proper installation and optimal performance.

Details:

Do you recognize the name on box. You won't have those concerns with our replacement drive belt parts. Pulley 1 Diameter: 70.4mm. And how do you know if you re getting the best price.

Includes: Automatic Belt Tensioner. Rubber O ring which seals against dust and grime. Pulley 1 Flat: Y. Serpentine belt drives consist of a single that powers most, if not all, the engines accessories.

Features: Heavy duty cast aluminum spring case that resists cracking and fatigue. Type: Automatic. No Slack Automatic Belt Tensioner Assembly 89649 by Dayco.

This innovative design reduces the risk of premature accessory bearing failure due to high tension when a new belt is installed and lessens noise slippage, or poor performance caused by low after begins stretch wear. Thermoplastic rubber spring slot plug that helps keep out harmful contaminants. With our drive belt parts you can schedule the repair when its convenient for. Specifications: Belt Type: Serpentine.

Number Of Pulleys: A PTFE strip wound within the spring resists abrasion and flat is coated to resist rust. Lubricated nylon pivot tube bushing and spring for quieter performance. Direction: Clock Wise.

No traffic, no standing in line, order from the comfort of your home or office.

part #: 89649 prices

• $39.99-$59.95

specifications pulleyhop:

• for makes: Volvo
• for years: 2006-2011
• brand: Dayco
• mpn: 89649
• part type: Belt
• product type: Engine
• upc: 036687822819
• fitment type: Direct Replacement
• partslink number: 30650957, 31251653
• compatible model s : S40, C70, C30, V50
• fitnote: Location
• location: Alternator And A/c
• product subtype: Engine Pulleys
• series: No Slack
• product details: Drive Belt Tensioner
• placement on vehicle: Need One
• department: Replacement

offer pulleyhop:

• sold: 0
• availability: In Stock
• options: Ship-to-home
• quantity: 5
• started: March 7, 2026

payments pulleyhop:

• other
• credit card: Discover
• wallet: Apple-pay

shipping pulleyhop:

• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery
• class: Standard
• cost: $21.96
• type: Calculated
• transit: 4-7 Days

seller pulleyhop:

• city: Rockville Centre, New York
• # reviews: 150763
• rating: 99.0%

returns pulleyhop:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

general pulleyhop:

• condition: New
• Car Truck Parts Accessories > Accessory Belts > Pulleys

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