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Porsche > Cayenne 9PA1 (957) 2007-2010 > Engine Rebuild Parts >

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Drive belt tensioning roller & belts kit. Porsche Cayenne / Panamera

94810240375/1KIT

Product Information

Accessory Drive Belt Kit (Serpentine Belt Kit)
This kit includes everything needed to replace the primary wear components of your accessory drive system. Each kit comes complete with a new serpentine belt, drive belt tensioner shock, tensioner pulley, two idler pulleys, and all required hardware.

The accessory drive belt—commonly known as a serpentine belt—delivers power from the engine’s crankshaft to essential components such as the alternator, water pump, power steering pump, and air conditioning compressor. It drives these systems through a network of pulleys synchronized by the belt’s rotation.

Regular inspection of the belt is important. Look for cracking, fraying, glazing, or other signs of wear. Most manufacturers recommend replacing the belt every 50,000 to 100,000 miles. Proper belt tension is equally critical, so it’s advisable to inspect the belt tensioner and idler pulleys any time the belt is serviced.

Fits:

·         Porsche 957 Cayenne S/GTS 4.8L 2007-10
·         Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
·         Porsche 958 Cayenne S V8 4.8L Petrol 400HP 2010-17
·         Porsche 958 Cayenne GTS V8 4.8L Petrol 400HP 2010-17
·         Porsche 958 Cayenne Turbo V8 4.8L Petrol 500HP 2010-17
·         Porsche 970.1 Panamera S V8 4.8L 2009-13
·         Porsche 970.1 Panamera GTS V8 4.8L 2011-13
·         Porsche 970.1 Panamera Turbo V8 4.8L 2009-13

Symptoms of Accessory Drive Belt Kit Failure

Wear and Tear: Cracking, glazing, or fraying can cause the belt to slip.
Pulley Misalignment: Misaligned pulleys lead to uneven wear and unwanted noise.
Improper Tension: Too much or too little tension can result in belt slip or premature component failure.
Contamination: Oil, coolant, or debris can weaken the belt material.
Excessive Noise: A squealing sound, especially at start-up, often indicates belt or tensioner issues.

Click 'Zoom in' for large parts diagram.
Diagram ref no 1, 3, 6, 7, 16,

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94810240375

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94810240321

94810240300

94810240375

7PP903137

95814527601

94810211821

94810226121

95510225100

94810211910

7PP145276

95510211910

94810211820

94810211800

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4 4 4 4

Drive belt with tensioning damper, idler pulley Kit . Porsche 955 / 957 / Cayenne V6

95510229900/1KIT

Product Information

Drive belt with tensioning damper, idler pulley Kit . Porsche 955 / 957 / Cayenne V6

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

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Diagram ref no 1, 7, 8

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95510229900

95510229900

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3 3 3

Timing belt & tensioning roller kit. Porsche 957 / 958 Cayenne 3.0L V6 Diesel 2007-18

95510524300/1KIT

Product Information

Timing belt & tensioning roller kit. Porsche 957 / 958 Cayenne 3.0L V6 Diesel 2007-18
The roller supports smooth belt movement and helps prevent belt vibration or wandering, which is especially important on diesel engines where consistent timing belt control is critical. Replacing the roller at the correct interval helps protect the belt, tensioning components, and the engine’s timing system reliability.

Fits:
Porsche 957 Cayenne (9PA1) 3.0L V6 Diesel 2007 - 2010
Porsche 958 Cayenne (92A) 3.0L V6 Diesel 2011 - 2018

Diagram ref no 3, 9, 11

This roller provides a smooth, low-friction contact surface for the timing belt, helping the belt run true and remain properly tensioned across engine speed and load changes.

Function:
• Maintains consistent timing belt tension and tracking
• Reduces belt noise/vibration and helps prevent premature belt wear
• Supports accurate engine timing by keeping belt control stable

A worn roller bearing can become noisy, develop play, or seize - leading to poor belt control and accelerated belt wear. Replacing the roller during timing belt service helps maintain dependable belt tension and reduces the risk of timing drive issues.

When to replace:
•  During timing belt replacement (recommended best practice)
•  Any sign of bearing noise (whine/rumble) from the timing area
•  Visible play, roughness, or contamination when spun by hand
•  Oil/coolant contamination in the belt area that may damage bearings

Related reference numbers
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95510524300

95510524300

95510221900

95510524401

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Belt deflection roller. Porsche 957/958 Cayenne / 970 Panamera

94810211821

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

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Diagram ref no 7

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94810211821

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94810211820

94810211800

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Belt deflection roller. Porsche 957/958 Cayenne / 970 Panamera

94810211821/1

Product Information

Belt deflection roller with fastening screw and protection cap.

oematch

33001011

94810211821

94810211820

94810211800

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4 4 4 4

Belt Tensioner Roller and Damper. Porsche 957 Cayenne Diesel

95510236110

Product Information

Belt Tensioner Roller & Damper

The belt tensioner roller and damper is a crucial part of the auxiliary drive system on the Porsche 957 Cayenne Diesel. Working together, these components maintain correct belt tension while absorbing vibration caused by engine load changes, ensuring smooth and reliable operation of belt-driven accessories such as the alternator, power steering pump and air conditioning compressor.

Fits:

Porsche 957 Cayenne 3.0L Diesel 2007-10

Diagram ref no 1

Given the high torque output of Porsche diesel engines, effective belt tension and vibration control are essential for durability and quiet operation.

What Do the Belt Tensioner Roller & Damper Do?

The tensioner roller guides the auxiliary belt and maintains consistent contact across pulleys, while the damper controls sudden movements and oscillations within the belt system. Together, they:

Maintain correct belt tension under all operating conditions
Reduce belt vibration and noise
Protect auxiliary components from shock loads
Ensure smooth and efficient belt tracking

This coordinated function helps extend the lifespan of the belt and surrounding components.

Why Do Belt Tensioner Rollers & Dampers Fail?

Over time, these components are exposed to constant rotation, heat cycles and environmental contamination. Common causes of failure include:

Bearing wear in the tensioner roller Loss of damping efficiency due to internal wear Heat-related material fatigue Contamination from dust, water or oil

Typical symptoms of failure include:

Squealing or chirping noises
Visible belt vibration
Premature auxiliary belt wear
Increased load on alternator and accessories

Why Replace the Belt Tensioner Roller & Damper?

Replacing worn components helps restore:

Stable and quiet belt operation
Correct belt alignment and tension
Reduced stress on auxiliary drive components
Improved overall engine refinement

Ignoring worn tensioner or damper components can lead to belt failure or damage to expensive accessories, increasing repair costs.

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95510236110

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4 4 4 4

Belt Tensioner Roller and Damper. Porsche 957 Cayenne Diesel

95510236110/1

Product Information

Belt Tensioner Roller & Damper

Porsche 957 Cayenne 3.0L Diesel 2007-10

Diagram ref no 1

Given the high torque output of Porsche diesel engines, effective belt tension and vibration control are essential for durability and quiet operation.

What Do the Belt Tensioner Roller & Damper Do?

The tensioner roller guides the auxiliary belt and maintains consistent contact across pulleys, while the damper controls sudden movements and oscillations within the belt system. Together, they:

Maintain correct belt tension under all operating conditions
Reduce belt vibration and noise
Protect auxiliary components from shock loads
Ensure smooth and efficient belt tracking

This coordinated function helps extend the lifespan of the belt and surrounding components.

Why Do Belt Tensioner Rollers & Dampers Fail?

Over time, these components are exposed to constant rotation, heat cycles and environmental contamination. Common causes of failure include:

Bearing wear in the tensioner roller Loss of damping efficiency due to internal wear Heat-related material fatigue Contamination from dust, water or oil

Typical symptoms of failure include:

Squealing or chirping noises
Visible belt vibration
Premature auxiliary belt wear
Increased load on alternator and accessories

Why Replace the Belt Tensioner Roller & Damper?

Replacing worn components helps restore:

Stable and quiet belt operation
Correct belt alignment and tension
Reduced stress on auxiliary drive components
Improved overall engine refinement

Ignoring worn tensioner or damper components can lead to belt failure or damage to expensive accessories, increasing repair costs.

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95510236110

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3 3 3

Camshaft adjuster intake. Porsche 957 Cayenne / 958 Cayenne

95510505101

Product Information

Camshaft adjuster intake.

porsche

Fits:
Porsche 957 Cayenne 3.6L 2008-10
Porsche 958 Cayenne 3.6L 2011-18

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Diagram ref no 24

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95510505101

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3 3 3

Camshaft adjuster outlet. Porsche 957 Cayenne 3.6L

95510505201

Product Information

Camshaft adjuster outlet.

porsche

Fits:
Porsche 957 Cayenne 3.6L 2008-10

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Diagram ref no 25

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95510505201

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7 7 7 7 7 7 7

Crankshaft timing chain sprocket. Porsche 957 Cayenne 4.8L / 958 Cayenne 4.8L / 970 Panamera 4.8L

94810223111

Product Information

Crankshaft timing chain sprocket.

porsche

Fits:
Porsche 957 Cayenne 4.8L 2007-10
Porsche 958 Cayenne 4.8L 2010-18
Porsche 970 Panamera 4.8L 2007-10

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Diagram ref no 1

Related reference numbers
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94810223111

94810223111

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4 4 4 4

Drive belt deflection roller. Porsche 957 / 958 Cayenne / 970 Panamera

95814527601

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

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Diagram ref no 6

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95814527601

95814527601

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95510211910

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4 4 4 4

Drive belt deflection roller. Porsche 957 / 958 Cayenne / 970 Panamera

95814527601/1

Product Information

Drive belt deflection roller.

oematch

33102001

95814527601

7PP145276

95510211910

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3 3 3

Drive belt deflection roller. Porsche 957 / 958 Cayenne / 970 Panamera / Macan DIESEL

95510211921/1

Product Information

Drive belt deflection roller. EACH. 2 per engine.

oematch

Outer Diameter: 65mm
Width: 26mm
Inner Diameter: 17mm

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95510211921

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3 3 3

Drive belt deflection roller. Porsche 957/958 Cayenne / 970 Panamera / Macan DIESEL

95510211921

Product Information

Drive belt deflection roller. EACH.

porsche

Fits:
Porsche 957 Cayenne 3.0L DIESEL 2009-12
Porsche 958 Cayenne 3.0L DIESEL
Porsche 970 Panamera 3.0L DIESEL 2012-16
Porsche 95B Macan 3.0L TDI 2014-18

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Diagram ref no 12

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95510211921

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Drive belt idler pulley deflection roller. Porsche 955 / 957 / 958 Cayenne

95510227600

Product Information

Drive belt idler pulley deflection roller with bolt and protective cap.
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

95510227600

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Drive belt idler pulley deflection roller. Porsche 955 / 957 / 958 Cayenne

95510227600/1

Product Information

Drive belt idler pulley deflection roller.
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

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95510227600

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DISPLAYING 1 to 16 (of 39 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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Belt tensioner / Belt drive (Model: 4801,4851) Cayenne 9PA1 (957) 4.8L 2007-10 102-060

Belt tensioner / Belt drive (Model: 5501) Cayenne 9PA (957) 3.6L 2007-10 102-070

Belt tensioner / Belt drive (Model: 059D) Cayenne 9PA1 (957) 3.0L Diesel 2007-10 102-080

Valve control (Model: 4801,4851) Cayenne 9PA1 (957) 4.8L 2007-10 103-015

Valve control (Model: 5501) Cayenne 9PA1 (957) 3.6L 2007-10 103-020

Toothed belt / Toothed belt guard (Model: 059D) Cayenne 9PA1 (957) 3.0L Diesel 2007-10 103-030