Belts / Tensioners / Rollers
- Porsche 955 Cayenne 3.2L V6 2003-06
- Porsche 957 Cayenne 3.6L 2007-10
- Porsche 958 Cayenne V6 3.6L Petrol 300Hp 2010-17
Genuine Porsche original equipment (OE) idler pulley is also referred to as an accessory drive belt deflection roller or relay roller. This pulley plays a key role in guiding and maintaining proper tension on the serpentine belt that drives essential engine accessories such as the alternator, power steering pump, air conditioning compressor, and water pump.
Fits:
Porsche 955 Cayenne 3.2L 2004>> (M02.2Y)
Porsche 957 Cayenne 3.6L 2007 - 2010 (Engine code: 5501)
M >> 638 08942
M 63A 03027 >>
M 63A 05020 >>
Porsche 958 Cayenne 3.6L 2010 - 18 (Engine code: 5502, CEYA)
M >> B 06770
M >> B 06811
Diagram ref no 7
This idler pulley provides a smooth, correctly aligned surface for the accessory drive belt (serpentine belt) to run over, ensuring proper routing and tension as it drives vital systems such as the alternator, air conditioning compressor, power steering pump, and water pump (as fitted). It keeps belt motion steady and prevents slipping, vibration, or premature wear in the belt system.
• Supports accessory belt routing and alignment
• Maintains belt tension and deflection control
• Reduces belt noise and wear
• Promotes reliable drive of auxiliary engine systems
Replace this idler pulley if you notice:
• Squealing or chirping from the front accessory belt area
• Belt wear or fraying
• Vibration or noise from the pulley bearing
• During belt system maintenance or tensioner replacement
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510227600
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
- Porsche 957 Cayenne 3.6L 2007-10
- Porsche 958 Cayenne V6 3.6L Petrol 300Hp 2010-17
This pulley supports and guides the serpentine/accessory belt to maintain proper routing and tension, ensuring it runs smoothly over various engine accessories without slipping or misalignment.
Fits:
Porsche 955 Cayenne 3.2L 2004>> (M02.2Y)
Porsche 957 Cayenne 3.6L 2007 - 2010 (Engine code: 5501)
M >> 638 08942
M 63A 03027 >>
M 63A 05020 >>
Porsche 958 Cayenne 3.6L 2010 - 18 (Engine code: 5502, CEYA)
M >> B 06770
M >> B 06811
Diagram ref no 7
This idler pulley provides a smooth, correctly aligned surface for the accessory drive belt (serpentine belt) to run over, ensuring proper routing and tension as it drives vital systems such as the alternator, air conditioning compressor, power steering pump, and water pump (as fitted). It keeps belt motion steady and prevents slipping, vibration, or premature wear in the belt system.
A worn, noisy, or seized idler pulley can cause the accessory drive belt to:
• Slip or squeal
• Wear prematurely
• Mis-track off pulley grooves
• Lead to loss of accessory function (e.g., alternator charging, power steering assist, air conditioning)
Replacing a failing pulley restores smooth belt travel, helps reduce noise under the hood, and improves the belt’s service life.
Replace this idler pulley if you notice:
• Squealing or chirping from the front accessory belt area
• Belt wear or fraying
• Vibration or noise from the pulley bearing
• During belt system maintenance or tensioner replacement
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510227600
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
- Porsche 957 Cayenne 3.6L 2007-10
- Porsche 958 Cayenne V6 3.6L Petrol 300Hp 2010-17
Fits:
Porsche 955 Cayenne 3.2ltr - 02/04 to 04/07
Porsche 957 Cayenne 3.6ltr - 02/07 to 12/10
Porsche Cayenne 958 3.6ltr (E2) - 05/10 to 02/15
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510229900
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
- Porsche 957 Cayenne 3.6L 2007-10
- Porsche 958 Cayenne V6 3.6L Petrol 300Hp 2010-17
Fits:
Porsche 955 Cayenne 3.2L 02/2004 - 04/2007
Porsche 957 Cayenne 3.6L 02/2007 - 12/2010
Porsche 958 Cayenne 3.6L 05/2010 - 02/2015
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510229900
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
- Porsche 957 Cayenne 3.6L 2007-10
- Porsche 958 Cayenne V6 3.6L Petrol 300Hp 2010-17

Fits:
All V6 models
Porsche 955 Cayenne V6 3.2L
Porsche 957 Cayenne V6 3.6L
Porsche 958 Cayenne V6 3.6L
Click 'Zoom in' for large parts diagram.
Diagram ref no 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510293300
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
- Porsche 957 Cayenne 3.6L 2007-10
- Porsche 958 Cayenne V6 3.6L Petrol 300Hp 2010-17

Fits:
All V6 models
Porsche 955 Cayenne V6 3.2L
Porsche 957 Cayenne V6 3.6L
Porsche 958 Cayenne V6 3.6L
Click 'Zoom in' for large parts diagram.
Diagram ref no 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510293300
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
- Porsche 957 Cayenne 3.6L 2007-10
- Porsche 958 Cayenne V6 3.6L Petrol 300Hp 2010-17
Fits:
All V6 models
Porsche 955 Cayenne V6 3.2L
Porsche 957 Cayenne V6 3.6L
Porsche 958 Cayenne V6 3.6L
Click 'Zoom in' for large parts diagram.
Diagram ref no 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510293300
The product you are viewing cross references to these numbers
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.