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- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
- Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
- Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
Crankshaft Pulley with Dampener – Porsche 958 Cayenne / 970
Panamera Hybrid
Restore smooth and reliable engine operation with this OE
Match Crankshaft Pulley with Dampener. The crankshaft pulley is mounted to the front of the
crankshaft and drives the auxiliary belt system. Its integrated vibration
dampener also helps absorb torsional vibrations generated by the engine,
reducing stress on the crankshaft and belt-driven components.
Fits:
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
- Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
- Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
Diagram ref no 4
What Does the Crankshaft Pulley with Dampener Do?
As the engine runs, the crankshaft produces small twisting vibrations with each combustion cycle. The dampener helps absorb these vibrations before they are transferred through the crankshaft and auxiliary drive system.
The pulley also transfers crankshaft rotation to the auxiliary drive belt.
A correctly functioning crankshaft pulley helps:
- Drive the auxiliary belt system
- Reduce crankshaft torsional vibration
- Maintain smooth belt operation
- Reduce vibration transmitted to engine components
- Protect associated pulleys and belt-driven equipment
- Support smooth engine operation
Why Do Crankshaft Pulleys and Dampeners Fail?
The dampener is exposed to constant vibration, heat and engine speed changes. Over time, the rubber damping material between the pulley sections can deteriorate, crack or separate.
Common causes include:
- Age-related rubber deterioration
- Repeated heating and cooling cycles
- Engine vibration
- Contamination from engine oil or other fluids
- Cracking or separation of the damping material
- Pulley distortion or damage
- High mileage and general wear
Once the damping material deteriorates, the inner and outer sections of the pulley can begin moving independently.
When Should the Crankshaft Pulley Be Replaced?
Replacement should be considered if:
- The pulley visibly wobbles while the engine is running
- Cracks appear in the rubber dampening section
- The rubber begins separating from the pulley
- Unusual vibration develops from the front of the engine
- The auxiliary belt runs unevenly
- Squeaking, knocking or rattling noises are present
- The pulley is physically damaged or distorted
- Inspection confirms deterioration of the dampener
A failing crankshaft pulley should not be ignored, as complete separation can affect the auxiliary drive system and potentially damage surrounding components.
Important Auxiliary Drive Checks
When replacing the crankshaft pulley, inspect the auxiliary drive belt, tensioner, idler pulleys and surrounding components for wear or damage.
Any oil or coolant leaks contaminating the pulley should also be repaired, as fluids can accelerate deterioration of the rubber damping material.
Porsche Cayenne 958 & Panamera 970 Hybrid Crankshaft Pulleys
The crankshaft pulley and vibration dampener form an important part of the engine's auxiliary drive and vibration-control system.
As Porsche Cayenne 958 and Panamera 970 Hybrid models age, the rubber damping element can deteriorate through heat, vibration and general wear. Typical signs include pulley wobble, abnormal vibration, belt movement and noise from the auxiliary drive area.
During diagnosis, the pulley should be inspected alongside the auxiliary belt, tensioner and idler pulleys to identify any additional worn components.
Audi numbers:- 06E105251F
- 06E105251E
Also fits:
Audi A7 C7 3.0T
Audi B8 S4 Quattro 3.0T
Audi B8 S5 Quattro 3.0T Cabriolet
Audi B8 S5 Quattro 3.0T Coupe
Audi B8 SQ5 GTI 3.0T
Audi C6 A6 All V6 3.0T
Audi C7 A6 FWD V6 3.0T
Audi C7 A6 Quattro V6 3.0T
Audi Q5 GTI 3.0T
Audi Q7 GTI 3.0T
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95810224111
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
This tensioner (or idler) pulley is designed for Porsche 911 (996/997) and Boxster/Cayman vehicles. It supports the serpentine/drive belt system, ensuring smooth, stable rotation and correct belt alignment. It helps maintain proper tension, reduces noise, and protects engine accessories from excessive stress. Built to original Porsche standards and engineered for precise fitment and durability.
Fits:
Porsche 996 Carrera 3.4L / 3.6L 1997-05 6-speed Manual transmission
Porsche 997.1 Carrera 3.6L / 3.8L 2005-08 Manual transmission
Porsche 987.1 Boxster 2.7L / 3.2L / 3.4L 2005-08 Manual transmission
Porsche 987C.1 Cayman 987C 2.7L / 3.4L 2005-08 Manual transmission
Diagram ref no 15
Ideal replacement when the original pulley shows signs of wear, bearing noise, belt misalignment or visible belt damage - restoring accessory-drive reliability and avoiding secondary damage from belt failure.
The idler pulley plays a critical role in your accessory belt drive, maintaining the correct path and tension of the belt that powers many engine-mounted systems. When the pulley bearing deteriorates, or the surface becomes worn or grooved, the belt can slip, make noise, or even break—potentially causing loss of alternator, AC compressor or power-steering function. By replacing this component proactively with a quality OE-Match unit, you safeguard those systems and maintain proper engine accessory operation.
When and why to replace:
• Audible bearing noise or rumble coming from the pulley/belt area.
• Visible belt wear, glazing, fraying or mis-tracking across the pulley surface.
• Occasional belt slippage or accessory drive belt squeal on start-up or load.
• Accessory drive servicing (belt replacement, tensioner replacement) where it makes sense to fit the pulley at the same time.
• Higher-mileage vehicle where original pulley may have been in service for many years and bears may be near end-of-life.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710211800
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
The Drive Belt Tensioning Roller, identified by part number 997.102.117.00, is a critical component in the accessory drive system of several Porsche models, including the 996, 987 (Boxster and Cayman), and 997 (Carrera) equipped with manual transmissions. This roller maintains proper tension on the serpentine belt, ensuring the efficient operation of engine accessories such as the alternator, power steering pump, and air conditioning compressor.
Fits:
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08 Manual transmission
- Porsche 996 C2 3.4L 1997-08/01 6-speed Manual transmission
- Porsche 996 C4 3.4L 1997-08/01 6-speed Manual transmission
- Porsche 996 C2 3.6L 09/01-2005 6-speed Manual transmission
- Porsche 996 C4 3.6L 09/01-2005 6-speed Manual transmission
- Porsche 996 C4S 3.6L 09/01-2005 6-speed Manual transmission
- Porsche 997 MK1 Carrera 2 3.6L 2005-08 6-speed Manual transmission
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08 6-speed Manual transmission
- Porsche 997 MK1 Carrera 4 3.6L 2005-08 6-speed Manual transmission
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08 6-speed Manual transmission
- Porsche Cayman 2.7L 987C 2006-08 Manual transmission
- Porsche Cayman S 3.4L 987C 2005-08 Manual transmission
Common Tensioning Roller Issues and Why Replacement is Necessary. Over time, a tensioning roller can wear down due to constant exposure to engine heat and mechanical stress. Typical problems include:
- Bearing Wear: The internal bearing may deteriorate, causing noise and reducing performance.
- Seized Pulley: Rust or corrosion can lock the pulley, disrupting proper belt tension.
- Cracked or Damaged Pulley: Physical damage can misalign the belt and hinder the roller’s function.
- Replacing a worn tensioning roller is crucial to maintain proper belt operation, prevent squealing noises, and avoid potential damage to other engine components.
Diagram ref no 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710211700
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Also referred to as a relay roller or deflection roller, responsible for guiding and maintaining proper routing and tension of the accessory drive belt system.
Fits:
Porsche 996 Carrera 3.4L / 3.6L 1997 - 2005 Tiptronic gearbox
Porsche 997.1 Carrera 3.6L 2005 - 2008 Tiptronic gearbox
Porsche 986 Boxster 2.5L / 2.7L / 3.2L 1997 - 2004 Manual & Tiptronic gearbox
Porsche 987.1 Boxster 2.7L / 3.2L /3.4L 2005 - 2008 Tiptronic gearbox
Porsche 987C.1 Cayman 2.7L / 3.4L 2005 - 2008 Tiptronic
Diagram ref No 12
The idler pulley supports the accessory drive belt, helping to:
• Maintain proper belt routing and tension, preventing slipping and reducing premature wear.
• Guide the belt around engine accessories such as the alternator, power steering pump, A/C compressor, and water pump.
• Ensure smooth operation of components driven by the belt for optimal engine performance.
If the idler pulley wears out or the bearing fails, you may hear squealing, chirping, or grinding noises, see uneven belt wear, or experience belt misalignment - indicators it’s time for replacement.
A worn or failing idler pulley can cause the drive belt to slip, misalign, or break, which can in turn disrupt power to critical engine accessories. Symptoms include belt noise, squealing, or loss of accessory function (e.g., A/C, alternator charging), potentially leading to more costly repairs if ignored. Replacing it with an OE Match pulley ensures proper belt tension and routing, helping keep your engine’s accessory systems functioning smoothly.
Replace the idler pulley if you notice any of the following:
• Squealing, chirping, or grinding noises from the belt area
• Visible belt misalignment or excessive wear
• Pulley bearing play or rough rotation to the touch
• Cracks or deterioration of the pulley surface
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610211958
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
The OE MATCH Drive Belt Tensioning Roller is a high-quality replacement auxiliary drive belt component designed for selected Porsche 986 Boxster, 996 Carrera, 987 Boxster, 987 Cayman and 997 Carrera models.
Fits:
- Porsche 986 Boxster 2.7L / 3.2L / 3.4L Manual or Tiptronic gearbox
- Porsche 996 Carrera 3.4L / 3.6L 1997-05 Tiptronic gearbox
- Porsche 997.1 Carrera 3.6L 2005-08 Tiptronic gearbox
- Porsche 987.1 Boxster 2.7L / 3.2L / 3.4L 2005-08 Tiptronic gearbox
- Porsche 987C.1 Cayman 2.7L / 3.4L 2005-08 Tiptronic gearbox
Diagram Ref No 8
Manufactured to provide OE-style fitment and dependable performance, this tensioning roller helps maintain correct auxiliary drive belt operation by supporting the belt tensioning mechanism and ensuring smooth belt movement.
Also known as a belt tensioner pulley, this component works alongside the belt tensioner assembly to help maintain the correct tension and alignment of the engine's auxiliary drive belt. This allows belt-driven accessories, including the alternator, water pump and other applicable components, to operate efficiently.
The roller incorporates a rotating bearing assembly designed to withstand continuous operation, engine vibration and varying rotational speeds.
Over time, exposure to engine heat, bearing fatigue, contamination and mechanical stress can cause the original roller to deteriorate, resulting in unwanted noise, excessive movement or bearing failure.
Ideal for replacing worn, noisy, seized or damaged original rollers, the OE MATCH Drive Belt Tensioning Roller offers a practical replacement solution for routine servicing, preventative maintenance and auxiliary drive system repairs.
What This Product Does:
The drive belt tensioning roller forms part of the engine's auxiliary belt tensioning system. It provides a smooth rotating contact surface for the drive belt while working with the tensioner mechanism to maintain the correct belt tension and routing.
Its key functions include:
- Drive Belt Tension Support: Works with the tensioning mechanism to help maintain the correct operating tension of the auxiliary drive belt.
- Belt Guidance: Helps guide the belt along its designated route around the engine's pulley system.
- Smooth Belt Rotation: The integrated bearing allows the roller to rotate freely as the drive belt moves across its surface.
- Belt Alignment: Helps maintain correct belt tracking and reduces unwanted lateral movement.
- Auxiliary Component Operation: Supports reliable power transmission to belt-driven accessories, including the alternator and water pump where applicable.
- Reduced Belt Slippage: Helps maintain consistent belt contact with the surrounding pulleys.
- Vibration Reduction: Contributes to stable belt operation by helping minimise excessive movement and vibration.
- Reduced Operating Noise: A correctly functioning roller helps maintain smooth and quiet auxiliary belt operation.
- Premature Belt Wear Prevention: Proper pulley rotation and alignment help reduce unnecessary belt friction and uneven wear.
- OE-Style Replacement: Maintains the original auxiliary drive belt arrangement without requiring modification.
Symptoms Of Wear Or Failure:
Over time, continuous rotation, engine heat, vibration and bearing wear can cause the drive belt tensioning roller to deteriorate.
Common signs include:
- Squealing or Chirping Noises: High-pitched sounds from the auxiliary belt area may indicate worn bearings, belt slippage or incorrect belt alignment.
- Grinding or Rumbling Sounds: A deteriorating roller bearing may produce grinding, growling or rumbling noises while the engine is operating.
- Excessive Pulley Play: Side-to-side movement or looseness can indicate wear within the roller bearing.
- Rough Pulley Rotation: A worn bearing may feel rough, notchy or resistant when rotated by hand with the belt removed.
- Seized or Sticking Roller: Severe bearing failure can prevent the pulley from rotating freely, creating excessive friction against the drive belt.
- Visible Pulley Wobble: A damaged bearing or mounting arrangement may cause the roller to rotate unevenly.
- Uneven Drive Belt Wear: Incorrect pulley alignment can cause accelerated wear, fraying or damage along the belt edges.
- Cracked or Damaged Pulley Surface: Physical damage, cracking or deformation may affect correct belt operation.
- Excessive Belt Vibration: A worn roller or faulty tensioning mechanism may cause the belt to move excessively while the engine is running.
- Burning Rubber Smell: A seized or partially seized roller can generate friction and heat, potentially damaging the belt.
- Drive Belt Slipping or Dislodging: Severe roller wear or incorrect alignment may cause the belt to slip or move out of position.
- Auxiliary Component Failure: If the roller seizes and causes the drive belt to break, belt-driven accessories may stop operating.
- Battery Charging Warning: Loss of auxiliary belt drive can prevent the alternator from charging the battery correctly.
Why Replacement Matters:
- Replacing a worn or damaged drive belt tensioning roller is an important part of maintaining the reliability, performance and correct operation of your Porsche's auxiliary drive belt system.
- The auxiliary drive belt transfers rotational power from the engine to essential accessories. The tensioning roller plays a vital role in supporting the belt tensioning mechanism and maintaining smooth belt movement.
- As the roller bearing deteriorates, it can develop excessive friction, looseness or noise. Continued operation with a worn roller may result in incorrect belt alignment, increased vibration and premature drive belt wear.
- If the bearing becomes severely damaged or seizes completely, the drive belt can overheat, shred or break, potentially causing the sudden loss of important belt-driven accessories.
- Depending on the engine configuration, auxiliary belt failure can affect the alternator and water pump. Loss of alternator operation may lead to battery discharge and electrical system problems, while loss of water pump drive can result in engine overheating.
- A damaged tensioning roller may also increase stress on the surrounding tensioner assembly, guide pulleys and drive belt, potentially leading to additional component damage and more expensive repairs.
- Installing a replacement OE MATCH tensioning roller helps restore smooth bearing rotation, proper belt guidance and dependable auxiliary drive operation.
- Replacing worn rollers during scheduled belt servicing is particularly beneficial, as it provides an opportunity to inspect the condition of the drive belt, tensioner and associated pulleys before a more serious failure occurs.
- For Porsche owners, maintaining the auxiliary drive system is essential for dependable everyday operation, particularly on ageing vehicles where original pulley bearings may have experienced years of heat exposure and continuous use.
- The OE MATCH Drive Belt Tensioning Roller 99610211757/1 provides an OE-style replacement solution designed to maintain reliable belt operation, reduce unwanted noise and help protect essential engine accessories.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610211757
The product you are viewing cross references to these numbers