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Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://design91.uk/images/schemaLogo.png https://design91.uk/images/schemaLogo.png +443456003478 https://design91.uk Facebook Instagram

Belts / Tensioners / Rollers

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DISPLAYING 1 to 7 (of 7 products)
Special Order item
94810211821
Product Information
Product Information
Belt deflection roller with fastening screw and protection cap.

porsche

Fits:
Porsche 957 Cayenne S / GTS / Turbo 2007-10
Porsche 958 Cayenne S / GTS / Turbo 2011>>
Porsche 970 Panamera / S GTS / Turbo 2010-16

Click 'Zoom in' for large parts diagram.
Diagram ref no 7

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94810211821
94810211821
94810211820
94810211800

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94810211821/1
Product Information
Product Information
Belt deflection roller with fastening screw and protection cap.

oematch

Fits:
Porsche 957 Cayenne S / GTS / Turbo 2007-10
Porsche 958 Cayenne S / GTS / Turbo 2011>>
Porsche 970 Panamera / S GTS / Turbo 2010-16

Click 'Zoom in' for large parts diagram.
Diagram ref no 7

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94810211821
33001011
94810211821
94810211820
94810211800

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Special Order item
95814527601
Product Information
Product Information
Drive belt deflection roller.

porsche

Fits:
Porsche 957 Cayenne S / GTS / Turbo 2008-10
Porsche 958 Cayenne S / GTS / Turbo 2011-14
Porsche 970 Panamera / S / GTS / Turbo 2011-16

Click 'Zoom in' for large parts diagram.
Diagram ref no 6

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95814527601
95814527601
7PP145276
33102001
95510211910

The product you are viewing cross references to these numbers
95814527601/1
Product Information
Product Information
Drive belt deflection roller.

oematch

Fits:
Porsche 957 Cayenne S / GTS / Turbo 2008-10
Porsche 958 Cayenne S / GTS / Turbo 2011-14
Porsche 970 Panamera / S / GTS / Turbo 2011-16

Click 'Zoom in' for large parts diagram.
Diagram ref no 6

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95814527601
33102001
95814527601
7PP145276
95510211910

The product you are viewing cross references to these numbers
Special Order item
94810226121
Product Information
Product Information
Drive belt tensioner (Hydraulic Portion).
The Genuine Porsche Drive Belt Tensioner (Part No. 94810226121) is used in Porsche Cayenne (92A) and Panamera (970) models. This tensioner maintains proper tension and alignment of the serpentine (ribbed) belt, ensuring the alternator, air-conditioning compressor, power steering pump and other accessories function smoothly.

Fits:
Porsche 958 Cayenne S / GTS / Turbo 4.8L 2011 - 2018
Porsche 970 Panamera 3.6L 2011 - 2016
Porsche 970 Panamera S / GTS / Turbo 4.8L 2010 - 2016

Diagram ref no 3

The belt tensioner plays a critical role in the accessory-drive system: a failing or loose tensioner can allow belt slippage, mis-routing, increased accessory wear or belt breakage. This has implications for alternator output, A/C performance, power steering function and overall engine reliability. By using the genuine Porsche tensioner, you protect the accessory system, maintain factory behaviour and avoid secondary damage.

When to replace:
 • Audible belt squeal, chirp or rumble when the engine is started or under load.
 • Belt shows signs of wear, mis-tracking or vibration.
 • Tensioner or pulley appears worn, loose or has excessive play.
 • During serpentine belt replacement or major engine service where access is available.
 • High-mileage vehicles where the original tensioner may be nearing end of service life.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94810226121
94810226121

The product you are viewing cross references to these numbers
94810226121/1
Product Information
Product Information
Drive belt tensioner (Hydraulic Portion).
Hydraulic drive belt tensioner (poly V-belt) for Porsche Cayenne and Panamera models. Maintains correct accessory drive belt tension (alternator, power steering pump, A/C compressor, etc.), compensating for belt wear and stretch, reducing noise, and ensuring proper belt alignment. Manufactured to original Porsche factory specifications.

Fits:
Porsche 958 Cayenne S / GTS / Turbo 4.8L 2011 - 2016
Porsche 970 Panamera 3.6L 2011 - 2016
Porsche 970 Panamera S / GTS / Turbo 4.8L 2010 - 2016

Diagram ref no 3

Position on Vehicle: Mounted in the accessory drive belt system on the front of the engine – the tensioner damps vibrations and maintains belt tension/position in the serpentine belt loop.

•  Applications: Ideal for replacement when the original tensioner is showing signs of wear, belt noise appears, or during belt replacement to maintain proper belt tension and accessory drive reliability.

The drive belt tensioner plays a crucial role in ensuring proper tension, alignment, and vibration-free operation of the accessory belt. A worn or damaged tensioner can lead to belt squeal, misalignment, increased accessory wear, and even belt failure - potentially causing alternator, power steering, or air conditioning system failure. Replacing it with a new one ensures proper belt system operation and helps protect critical engine accessories.

When and why to replace:
A noticeable squealing or chirping belt noise on engine start or under load.
Visible wear, looseness or vibration in the belt tensioner or pulley.
During replacement of the accessory drive belt as part of scheduled service.
If the vehicle has high mileage and original tensioner shows aged performance.
To restore quiet, consistent accessory drive performance and prevent unexpected belt or accessory failure.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94810226121
94810226121

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Special Order item
99907332909
Product Information
Product Information
Tensioner pulley bolt, M8 x 96 - CH-.
sold each.

porsche

Fits:
Porsche 95B.1 Macan 3.0L / 3.6L 014-18
Porsche 957 Cayenne 4.8L 2007-10
Porsche 958 Cayenne 4.8L 2011-18
Porsche 958 Cayenne 3.6L 2014-18
Porsche 970 Panamera 3.6L / 4.8L 2010-16
Porsche 970 Panamera 3.0L 2013-16

Click 'Zoom in' for large parts diagram.
Diagram ref no 5

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99907332909
99907332909

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DISPLAYING 1 to 7 (of 7 products)
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About Belts / Tensioners / Rollers

Engine Rebuild Belts, Tensioners & Rollers – Precision Timing for Reliable Porsche Performance

Engine rebuild belts, tensioners, and rollers are essential components in maintaining your Porsche’s precise engine timing and smooth operation. These parts work together to synchronise the camshaft and crankshaft, ensuring valves open and close at exactly the right time for optimal combustion. Over time, these components can wear or deteriorate, especially under high performance or extended use, making replacement vital during an engine rebuild or major service.

At Design911, we supply a full range of genuine and high-quality belts, tensioners, and rollers for various Porsche models including, 911, Boxster, Cayman, Cayenne, Macan, and Panamera models. Each component is designed for strength, accuracy, and long-lasting reliability — ensuring your rebuilt Porsche engine performs flawlessly mile after mile.

What Do Engine Belts, Tensioners & Rollers Do?

These components form the heart of the engine’s timing and auxiliary systems. They:

  • Drive key engine components, including the camshaft, alternator, and water pump.
  • Maintain accurate timing for optimal combustion and efficiency.
  • Reduce friction and noise through smooth roller and tensioner operation.
  • Ensure consistent belt tension to prevent slippage or premature wear.

Together, they guarantee your Porsche’s engine runs smoothly, efficiently, and reliably — whether cruising or driving at peak performance.

Why Do Belts, Tensioners & Rollers Fail?

Exposure to high temperatures, vibration, and constant motion causes natural wear over time. Common causes of failure include:

  • Aging rubber belts becoming brittle or cracked.
  • Worn bearings in rollers or tensioners leading to noise or vibration.
  • Loss of tension causing belt slippage or timing misalignment.
  • Contamination from oil or coolant degrading materials.
  • Extended maintenance intervals leading to unexpected failure.

Symptoms of failing components include squealing noises, poor engine performance, rough idle, or even timing belt failure, which can cause severe engine damage if ignored.

Why Replace Belts, Tensioners & Rollers During an Engine Rebuild?

Replacing these components during an engine rebuild ensures long-term reliability and eliminates the risk of future timing-related failures. A fresh set of belts, rollers, and tensioners restores precision, efficiency, and performance — protecting your investment.

Benefits of replacement include:

  • Restored precise timing and smooth operation.
  • Reduced risk of catastrophic engine failure.
  • Enhanced reliability and longevity of the rebuild.
  • Quieter, more efficient engine performance.

All components available from Design911 are made using premium-grade materials, precision bearings, and advanced heat-resistant compounds, ensuring maximum durability and performance in high-stress Porsche engines.

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