Belts / Tensioners / Rollers

Belt Tensioner Damper.

The Genuine Porsche Belt Tensioner Damper is an original equipment auxiliary drive system component designed to absorb vibration and stabilise the movement of the drive belt tensioner on compatible Porsche models. Manufactured to Porsche's exact specifications for fit, damping performance and durability, this precision-engineered damper helps maintain consistent belt tension, reducing belt oscillation and ensuring the reliable operation of engine-driven accessories such as the alternator, air conditioning compressor, power steering pump and water pump where applicable.

Fits:

• Porsche 957 Cayenne 3.0L Diesel 2007-10
• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17 

 
Diagram Ref No 1

Manufactured from high-strength steel with a precision hydraulic or gas-filled damping mechanism (application dependent), the tensioner damper is engineered to withstand continuous engine vibration, high operating temperatures and repeated load changes. Designed as a direct replacement for the original component, it integrates seamlessly with the auxiliary belt tensioner assembly, delivering factory-correct belt control and long-term reliability.  

What This Product Does:

• Dampens movement of the auxiliary drive belt tensioner.
• Maintains consistent drive belt tension.
• Reduces belt vibration and oscillation.
• Helps prevent belt slip during acceleration and load changes.
• Protects the auxiliary belt and tensioner assembly from premature wear.
• Supports reliable operation of engine-driven accessories.
• Restores factory drive belt damping performance.
• Forms an essential part of the engine auxiliary belt drive system.

Symptoms Of Wear Or Failure:

• Excessive movement of the belt tensioner.
• Auxiliary drive belt vibration or flutter.
• Squealing or chirping noises from the drive belt.
• Rattling noises from the front of the engine.
• Premature auxiliary belt wear.
• Belt slipping under load.
• Visible hydraulic fluid leakage from the damper (where applicable).
• Cracked or damaged damper housing or mounting points.
• Inconsistent operation of engine-driven accessories.
• Premature failure of the belt tensioner assembly.

Why Replacement Matters:

• The belt tensioner damper is subjected to constant engine vibration, rapid changes in belt load and continuous movement throughout engine operation. Over time, the internal damping mechanism can wear or lose effectiveness, while seals and mounting components may deteriorate due to heat and age.
• A worn tensioner damper can allow excessive belt movement, increasing the risk of belt slip, noise and premature wear of the auxiliary belt, tensioner and driven components. If left unresolved, it can lead to accessory drive failure and unexpected vehicle breakdown.
• Replacing a worn or faulty damper with a Genuine Porsche component restores correct belt tension control and ensures smooth operation of the auxiliary drive system. Manufactured to Porsche's exact engineering standards, the Genuine Porsche Belt Tensioner Damper provides factory-correct fitment, exceptional durability and dependable long-term performance, helping maintain engine reliability, accessory efficiency and the driving confidence expected from your Porsche.

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958145201

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Belt Tensioner Damper.

The OE MATCH Porsche Belt Tensioner Damper is a auxiliary drive system component designed to absorb vibration and stabilise the movement of the drive belt tensioner on compatible Porsche models. This precision-engineered damper helps maintain consistent belt tension, reducing belt oscillation and ensuring the reliable operation of engine-driven accessories such as the alternator, air conditioning compressor, power steering pump and water pump where applicable.

Fits:

• Porsche 957 Cayenne 3.0L Diesel 2007-10
• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17 

 
Diagram Ref No 1

The tensioner damper is engineered to withstand continuous engine vibration, high operating temperatures and repeated load changes. Designed as a replacement, it integrates seamlessly with the auxiliary belt tensioner assembly, delivering correct belt control and long-term reliability.  

What This Product Does:

• Dampens movement of the auxiliary drive belt tensioner.
• Maintains consistent drive belt tension.
• Reduces belt vibration and oscillation.
• Helps prevent belt slip during acceleration and load changes.
• Protects the auxiliary belt and tensioner assembly from premature wear.
• Supports reliable operation of engine-driven accessories.
• Forms an essential part of the engine auxiliary belt drive system.

Symptoms Of Wear Or Failure:

• Excessive movement of the belt tensioner.
• Auxiliary drive belt vibration or flutter.
• Squealing or chirping noises from the drive belt.
• Rattling noises from the front of the engine.
• Premature auxiliary belt wear.
• Belt slipping under load.
• Visible hydraulic fluid leakage from the damper (where applicable).
• Cracked or damaged damper housing or mounting points.
• Inconsistent operation of engine-driven accessories.
• Premature failure of the belt tensioner assembly.

Why Replacement Matters:

• The belt tensioner damper is subjected to constant engine vibration, rapid changes in belt load and continuous movement throughout engine operation. Over time, the internal damping mechanism can wear or lose effectiveness, while seals and mounting components may deteriorate due to heat and age.
• A worn tensioner damper can allow excessive belt movement, increasing the risk of belt slip, noise and premature wear of the auxiliary belt, tensioner and driven components. If left unresolved, it can lead to accessory drive failure and unexpected vehicle breakdown.

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958145201

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Belt tensioner roller. 

Fits:
Porsche 958 Cayenne 3.0L DIESEL 2011 - 2018
Porsche 970 Panamera 3.0L DIESEL 2012 - 2016
Porsche 95B.1 Macan 3.0L TDI 2014 - 2018

Diagram ref no 1

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958903133

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Belt tensioner roller. 
This tensioner helps maintain the correct tension and routing of the accessory (serpentine) drive belt, which powers multiple engine-driven components such as the alternator, air conditioning compressor, and other auxiliary systems. By applying consistent force to the belt, the tensioner reduces slack, prevents belt slip, and supports smooth belt operation under varying engine loads and temperatures.

Fits:
Porsche 958 Cayenne 3.0L DIESEL 2011 - 2018
Porsche 970 Panamera 3.0L DIESEL 2012 - 2016
Porsche 95B.1 Macan 3.0L TDI 2014 - 2018

Diagram ref no 1

Application:
Accessory drive belt tensioner assembly - installed in the front engine accessory drive system to control belt tension and alignment.

Function:
• Applies and regulates tension to the accessory drive belt
•  Maintains proper belt alignment over pulleys
•  Reduces belt chatter and premature wear
•  Helps ensure reliable operation of belt-driven accessories

A worn or weak belt tensioner can lead to belt slip, increased noise (squeal or chirp), uneven belt wear, and reduced accessory performance. Replacing a failing tensioner restores proper tension control and helps prolong the life of the belt and pulleys - improving reliability and reducing the risk of accessory drive failures.

Replace the tensioner if you notice:
•   Squealing or chirping from the belt area
•   Visible belt wear or fraying
•   Belt slipping under load
•   Rough or noisy pulley bearing movement
•   During routine accessory belt or tensioner service intervals

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958903133

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Belt pensioner roller.



Fits:
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 1

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958903133

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Drive belt deflection roller. EACH. 2 per engine.

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

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 deflection roller. EACH.



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.
The OE Match Drive Belt is a premium-quality replacement auxiliary drive belt designed to transfer engine power efficiently to essential engine-driven accessories on compatible Porsche models. Manufactured to OE specifications for fit, performance and durability, this precision-engineered multi-ribbed belt ensures dependable operation of components such as the alternator, water pump, air conditioning compressor and power steering pump (where applicable), helping maintain reliable engine performance and accessory operation.  

Fits:

• Porsche 957 Cayenne 3.0L Diesel 2007-10
• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-11

 
Diagram Ref No 18

Manufactured from premium EPDM (Ethylene Propylene Diene Monomer) rubber reinforced with high-strength tensile cords, the drive belt is engineered to withstand constant flexing, high rotational speeds, elevated engine temperatures and exposure to moisture, dirt and contaminants. Its precision-moulded rib profile delivers excellent grip and smooth power transmission while minimising belt slip, vibration and operating noise. Designed for direct OE-style installation, it provides factory-correct fitment and long-lasting reliability.  

What This Product Does:

• Transfers engine power to auxiliary components.
• Drives the alternator, water pump, air conditioning compressor and other engine accessories where applicable.
• Maintains efficient charging, cooling and climate control performance.
• Provides smooth and reliable power transmission.
• Reduces belt slip and operating noise.
• Supports dependable engine accessory operation.
• Restores factory auxiliary drive system performance.
• Forms an essential part of the engine accessory drive system.

Symptoms Of Wear Or Failure:

• Squealing or chirping noises from the front of the engine.
• Visible cracks, fraying or glazing on the belt.
• Belt slipping during engine operation.
• Battery warning light caused by reduced alternator output.
• Engine overheating due to reduced water pump operation (where applicable).
• Loss or reduction of air conditioning performance.
• Heavy steering on vehicles with hydraulic power steering.
• Excessive belt vibration or flutter.
• Missing or damaged belt ribs.
• Complete belt failure causing loss of engine-driven accessories.

Why Replacement Matters:

• The auxiliary drive belt is under constant tension whenever the engine is running and is subjected to continuous flexing, heat and varying loads from multiple engine accessories. Over time, the rubber compound naturally ages, while the reinforcing cords can weaken, increasing the risk of cracking, stretching or sudden failure.
• A worn drive belt can slip, reducing the efficiency of engine accessories, or fail completely, potentially causing battery charging failure, engine overheating, loss of air conditioning and reduced steering assistance where applicable. In many cases, a failed drive belt can leave the vehicle stranded and result in expensive secondary repairs.
• Replacing a worn drive belt with the OE Match Drive Belt restores reliable power transmission and protects the engine's auxiliary systems from unnecessary wear and unexpected failure. Manufactured to OE standards using premium EPDM materials and reinforced construction, it provides factory-style fitment, exceptional durability and dependable long-term performance, ensuring the reliability and driving confidence expected from your Porsche.

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95810221600

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Drive belt.
Number of ribs: 6,
Width: 21 mm | Length: 2478 mm

Fits:
Porsche 957 Cayenne V6 3.0L DIESEL 2009-10
Porsche 958 Cayenne V6 3.0L DIESEL 2011

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Diagram ref no 18

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Drive Belt. 6PK 21,18 x 2480


Fits:
Porsche 957 Cayenne V6 3.0L DIESEL 2009-10
Porsche 958 Cayenne V6 3.0L DIESEL 2011

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Diagram ref no 18

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Drive belt. 6 PK 21.36 X 2518
Genuine Porsche OE drive belt for Porsche 958 Cayenne 3.0L Diesel and 970 Panamera 3.0L Diesel models. This original Porsche Poly-V / serpentine belt forms part of the engine accessory drive system and helps drive key auxiliary components from the engine pulley system.

Fits:
Porsche 958 Cayenne 3.0L Diesel 2012 - 2018
Porsche 970 Panamera 3.0L Diesel 2012 - 2016

Diagram ref no 16

This belt is used on selected Porsche 3.0L diesel engines and is commonly listed for Porsche 958 Cayenne Diesel and 970 Panamera Diesel applications.

What This Part Does / Functions
•  Transfers drive from the engine crankshaft pulley to auxiliary components
•  Helps drive the alternator to maintain battery charging
•  Supports operation of the water pump, power steering pump and air-conditioning compressor where included in the belt routing
•  Helps maintain correct operation of the engine accessory drive system
•  Provides the correct OE Porsche belt profile and fitment
•  Helps reduce belt slip, squeal and accessory-drive faults when correctly installed
•   Replaces a cracked, worn, stretched, glazed or noisy original belt
•   Maintains factory Porsche service specification and reliability.

Why Replace This Part?
The drive belt is a normal service wear item. Over time, heat, tension, pulley contact and engine operation can cause the belt to crack, glaze, fray, stretch or lose grip. A worn belt may cause squealing noises, poor charging performance, coolant circulation issues, power steering problems, air-conditioning faults or complete accessory drive failure. Replacing the belt with a Genuine Porsche OE drive belt helps restore reliable auxiliary drive operation and protects key engine systems that depend on the belt-driven components.

When to Replace This Part
•   If the belt is cracked, glazed, frayed or visibly worn
•   If the belt squeals, slips or makes noise on start-up or under load
•   If the battery or charging warning light appears
•   If there are power steering, cooling or air-conditioning symptoms linked to belt slip
•   During scheduled service or preventative belt replacement
•   When replacing the belt tensioner, idler pulleys, alternator, water pump or A/C compressor
•   If the belt has been contaminated by oil, coolant or road debris
•   When restoring the engine bay with correct OE Porsche service parts.

Where It Fits on the Car
This belt fits on the front engine accessory drive system of the 3.0L diesel engine. It routes around the crankshaft pulley, tensioner, idler pulleys and driven accessories according to the factory belt layout. Porsche dealer listings describe the routing for Cayenne 3.0L Diesel as including the crankshaft pulley, tensioner, idlers, alternator, water pump, power steering pump and compressor.

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95810221610

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Drive belt. 6 PK 21.36 X 2520

Fits:
Porsche 958 Cayenne 3.0L DIESEL 2012-18
Porsche 970 Panamera 3.0L DIESEL 2012-16

Diagram ref no 16

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Drive belt. 6 PK 21.36 X 2518
This OE Match drive belt is a replacement auxiliary engine belt for Porsche 958 Cayenne 3.0L Diesel and 970 Panamera 3.0L Diesel models. It is designed to match the original-style fitment and function, helping maintain correct belt drive operation across the engine accessory system.

Fits:
Porsche 958 Cayenne 3.0L DIESEL 2012 - 2018
Porsche 970 Panamera 3.0L DIESEL 2012 - 2016

Diagram ref no 16

The drive belt transfers rotational power from the engine pulley to the relevant auxiliary components. A correctly fitted and tensioned belt is essential for dependable accessory drive performance and overall engine system reliability.

Functions
•  Replaces the engine drive belt
•  Transfers drive from the engine pulley to auxiliary components
•  Supports reliable accessory belt operation
•  Helps maintain correct belt tension and pulley contact
•  Replaces cracked, glazed, stretched, frayed, noisy, or slipping belts
•  Suitable for routine servicing and preventative maintenance
•  OE Match replacement for Porsche Diesel engine service.

Why Replace This Part?
Drive belts wear over time due to heat, vibration, pulley contact, age, tension changes, and engine bay conditions. A worn belt can crack, glaze, stretch, fray, squeal, slip, or fail completely. Replacing the belt helps maintain reliable auxiliary system operation and reduces the risk of belt-related breakdowns.

When to Replace This Part
•   The belt is cracked, glazed, frayed, stretched, or worn
•   Belt squeal or chirping is heard during start-up or acceleration
•   The belt is slipping or not tracking correctly
•   The belt tensioner, pulleys, alternator, or related components are being serviced
•   Preventative belt replacement is being carried out during scheduled maintenance
•   The engine accessory drive system is being inspected
•   The vehicle is undergoing Porsche Cayenne or Panamera Diesel engine service.

Where it fits on the car
This drive belt fits within the engine auxiliary belt drive system on Porsche 958 Cayenne 3.0L Diesel and 970 Panamera 3.0L Diesel models. It runs around the relevant pulleys according to the factory belt routing.

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Relay roller for ribbed v-belt.


FitS:
Porsche 957 Cayenne Diesel 3.0L 2009-10
Porsche 958 Cayenne Diesel 3.0L 2011

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Diagram ref no 11

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