Mercedes-Benz C-Class W204 / C204 / S204 (2008 - 2014) Drive Belt Tensioner

In stock
OE Reference Number: 6512001570,6512002170,A6512001570,A6512002170
Regular price $175.00 inc. GST
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  • Genuine / Aftermarket Aftermarket
  • Type Belt Tensioners
  • Make Mercedes-Benz
  • Model C-Class
  • Series W204 [2007 - 2014]

Experiencing belt squealing, slippage, or unusual vibrations from your Mercedes-Benz C-Class engine bay? This precision-engineered drive belt tensioner provides the perfect solution for restoring optimal serpentine belt performance. Specifically manufactured for Mercedes-Benz C-Class W204 / C204 / S204 (2008 - 2014) vehicles, this component ensures your engine accessories operate smoothly and reliably.

What's Included
  • 1 x Drive Belt Tensioner
Performance & Construction
  • Vibration Elimination: Ensures optimal belt tension to prevent slippage, vibration, and unwanted operational noise.
  • Reliable Pressure Control: Provides consistent belt tension for dependable engine accessory performance.
  • Belt Longevity: Maintains proper tension to prevent early serpentine belt deterioration and replacement needs.
  • Heavy-Duty Build: Constructed with premium materials designed to withstand engine heat and operational stress.
  • OE-Specification Design: Manufactured to original equipment standards for seamless installation and dependable function.
Vehicle Application
  • Compatible Models: Mercedes-Benz C-Class W204 / C204 / S204 manufactured in 2008, 2009, 2010, 2011, 2012 and 2014. Suitable for Coupe, Estate and Saloon configurations.
  • Engine Variants: C180 CDI / C200 CDI / C220 CDI / C220 CDI 4MATIC / C250 CDI / C250 CDI 4MATIC / T-Models
  • Motor Codes: M651.911 / M651.912 / M651.913
Product Specifications
  • Installation Type: Direct Replacement

This drive belt tensioner represents a crucial maintenance component for C-Class owners experiencing tensioner-related problems. By restoring proper belt tension control, it eliminates troublesome symptoms like noise and slippage while ensuring dependable engine accessory operation.

Always confirm fitment compatibility with your particular vehicle specifications prior to purchase. We recommend professional installation to achieve the best performance results.

Every order except for oversized items will automatically receive free standard shipping, so you can get your items without any additional cost.

If you need your order faster, express and same-day delivery options are available at checkout. Express and same-day delivery fees vary depending on the product and delivery location, so we’re unable to provide a standard rate in advance — the cost will be shown once your items are added to your cart.

We aim to provide same-day dispatch for all weekday orders placed before 12:00 PM (AEST during standard time or AEDT during daylight saving).

Once your order has been dispatched, you will receive an email notification with your tracking details. Tracking information may take up to 24 hours to appear, and please check your spam or junk folder if you don’t see the email in your inbox. Tracking is always included for orders above $50. For orders below $50, tracking will be provided if available.

For international orders, please note that shipments may be subject to import duties, taxes, and customs processing fees, which are applied once the package reaches its destination country. These charges are not included in our shipping fees and are the responsibility of the recipient.

Important Notes: While we strive to provide accurate delivery estimates, delays may occur due to stock availability, courier conditions, or other unforeseen factors. We appreciate your understanding and patience in these situations. Regardless of order value, every item is packed with care and delivered as promptly as possible.

All orders are covered by our free Standard Return & Refund Policy.

If you change your mind, you can return any unused, uninstalled product in its original condition at any time (there is no time limit) for store credit.

If your item arrives defective, damaged, or incorrect, please notify us within 30 days. We cover return shipping for confirmed defects or errors and will provide either a replacement or a full refund to your original payment method.

For change-of-mind returns, you’ll need to cover the return shipping cost. To start the process, simply fill out the required fields in our contact form.

All approved change-of-mind returns are processed as store credit only. Once your item has been received and inspected, processing may take up to 15 business days.

Every return is handled with care to ensure a fair and reliable process.

If your item arrives defective, damaged, or incorrect, please notify us within 30 days. We cover return shipping for confirmed defects or errors and will provide either a replacement or a full refund to your original payment method.

Guaranteed Fitment and Compatibility

OEM-Standard Belt Tensioners

Don't settle for cheap replacements, choose lasting reliability. Built to OEM specifications for precise tension control and long-term reliability. Each unit is tested for load capacity, bearing alignment, and damping performance to ensure smooth, vibration-free belt operation. Designed to maintain consistent tension under all temperature and load conditions.

Built for Australian Conditions Proven performance. Lasting reliability.
Mercedes-Benz C-Class W204 / C204 / S204 (2008 - 2014) Drive Belt Tensioner Features
Position of key components may differ from product to product
Feature Detail

Select a numbered point above

Tap any marker to discover the engineering behind each component.

Component Breakdown

Engineering features explained

1

Precision Pulley Wheel

Machined to exact OEM tolerances for optimal belt tracking and reduced friction. The pulley surface is treated for wear resistance and balanced to prevent vibration at high engine speeds.

2

High-Load Bearing Assembly

Sealed bearing system provides smooth, low-resistance rotation and long service life. Factory-lubricated and tested for noise, vibration, and harshness (NVH) to ensure silent operation and durability under load.

3

Heavy-Duty Spring Mechanism

Internal torsion spring maintains consistent belt tension through dynamic load changes. Designed for precise deflection and recovery to prevent belt slippage or premature wear.

4

Reinforced Mounting Bracket

Die-cast aluminium or steel bracket provides structural rigidity and perfect alignment with the engine drive system. Tested for thermal expansion and vibration resistance to ensure reliable operation in demanding environments.

5

Corrosion-Resistant Coating

Protective surface finish guards against oxidation, coolant exposure, and road contaminants. Extends the life of both pulley and housing components for consistent performance over time.