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Belts All Types
By OE Match
- 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
Fits:
Porsche 996 Carrera 3.4L / 3.6L 1997-05 Tiptronic gearbox
Porsche 997.1 Carrera 3.6L 2005-08 Tiptronic gearbox
Porsche 986 Boxster 2.5L 2.7L / 3.2L 1997-04 Manual & 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
Click 'Zoom in' for large parts diagram.
Diagram ref No 15
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610211856
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
The OE MATCH Drive Belt Deflection Roller is a high-quality replacement auxiliary drive belt component designed for Porsche 996 Turbo, 997 Turbo and GT3 models. Manufactured to provide OE-style fitment and reliable operation, this deflection roller helps guide the engine's auxiliary drive belt along its designated path, ensuring smooth and consistent operation of the belt-driven accessories.
Fits:- Porsche 996 Turbo
- Porsche 997 Turbo
- Porsche 996 GT3 1999-05
- Porsche 997 GT3 2007-11
Diagram Ref No 8
Also known as an idler pulley or guide roller, this component forms part of the engine's auxiliary belt drive system. It works alongside the drive belt and tensioner assembly to maintain correct belt alignment and routing during engine operation.
The roller incorporates a rotating pulley and bearing assembly designed to accommodate continuous engine operation, vibration and changing rotational speeds.
Over time, the original roller bearings can deteriorate due to age, heat, contamination and prolonged use, potentially resulting in excessive noise, poor belt tracking or complete bearing failure.
Ideal for replacing worn, noisy, seized or damaged original rollers, the OE MATCH Drive Belt Deflection Roller provides a practical replacement solution for routine servicing, preventative maintenance and engine repairs.
What This Product Does:The drive belt deflection roller guides the auxiliary drive belt around the engine's pulley system, helping maintain the correct belt routing and alignment.
Unlike the belt tensioner, which applies the necessary tension to the belt, the deflection roller primarily provides guidance and support to ensure the belt follows its intended path.
Its key functions include:
- Drive Belt Guidance: Directs the auxiliary drive belt along the correct route around the engine's pulley system.
- Belt Alignment: Helps maintain proper belt positioning and prevents unwanted lateral movement.
- Smooth Belt Operation: The integrated bearing allows the pulley to rotate freely as the drive belt moves across its surface.
- Auxiliary System Support: Contributes to reliable operation of the engine accessories driven by the auxiliary belt.
- Reduced Belt Vibration: Helps maintain stable belt tracking and minimise unwanted movement during engine operation.
- Reduced Operating Noise: A correctly functioning roller supports smooth, quiet belt movement.
- Belt Wear Prevention: Proper alignment helps reduce uneven belt wear, edge damage and premature deterioration.
- Consistent Belt Routing: Maintains the intended belt path as engine speed changes.
- OE-Style Fitment: Provides a replacement for the original guide roller without modification to the specified mounting arrangement.
Symptoms Of Wear Or Failure:
Over time, continuous rotation, engine heat, vibration and contamination can cause the bearings and pulley surfaces of the drive belt deflection roller to deteriorate.
Common signs include:
- Squealing or Chirping Noises: High-pitched noises from the auxiliary belt area may indicate worn bearings, poor belt alignment or excessive friction.
- Grinding or Rumbling Sounds: A deteriorating pulley bearing may produce grinding, rumbling or growling noises while the engine is running.
- Excessive Pulley Play: Side-to-side movement or looseness may indicate wear within the roller bearing.
- Rough Pulley Rotation: A worn bearing may feel rough, notchy or resistant when the pulley is rotated by hand with the belt removed.
- Seized or Sticking Roller: Bearing failure can prevent the pulley from rotating freely, potentially causing the drive belt to slide across a stationary surface.
- Visible Pulley Wobble: A damaged bearing or mounting arrangement may cause the roller to rotate unevenly.
- Uneven Drive Belt Wear: Incorrect tracking can cause excessive wear along the belt edges or running surface.
- Cracked or Damaged Pulley Surface: Physical damage or deterioration may affect smooth belt movement.
- Excessive Belt Vibration: An unstable pulley or incorrectly tensioned belt may produce visible belt movement during operation.
- Burning Rubber Smell: A seized roller can generate friction and heat, potentially damaging the drive belt.
- Drive Belt Slipping or Coming Off: Severe bearing failure or incorrect pulley alignment may cause the belt to move out of position.
- Auxiliary Drive Failure: If the roller seizes or the belt breaks, belt-driven accessories may stop operating.
Why Replacement Matters:
- Replacing a worn or damaged drive belt deflection roller is an important part of maintaining the reliability and correct operation of your Porsche's auxiliary drive belt system.
- The auxiliary drive belt operates continuously while the engine is running, transferring rotational power to essential belt-driven components. The deflection roller plays a critical role in guiding this belt and maintaining its correct path around the engine.
- As the roller bearing deteriorates, it may develop excessive play, resistance or noise. Continued operation with a worn roller can cause incorrect belt tracking, increased friction and premature belt wear.
- If the bearing becomes severely damaged or seizes completely, the belt may overheat, shred or break, potentially causing the sudden loss of belt-driven accessory operation.
- Depending on the engine configuration, auxiliary belt failure can affect important components such as the alternator and water pump. Loss of water pump operation may result in engine overheating, while alternator failure can lead to battery discharge and electrical system problems.
- A failed roller may also damage surrounding pulleys, tensioners or other components within the auxiliary drive system, potentially increasing repair costs.
- Installing a replacement OE MATCH deflection roller helps restore smooth pulley rotation, correct belt guidance and reliable auxiliary drive operation.
- Replacing worn rollers during scheduled belt maintenance is particularly beneficial because it allows associated components to be inspected and renewed before a more serious failure occurs.
- For high-performance Porsche Turbo and GT3 engines, maintaining the condition of the auxiliary drive system is especially important during demanding driving conditions and high engine speeds.
- The OE MATCH Drive Belt Deflection Roller 99611501576/1 offers an OE-style replacement solution designed to support dependable belt operation, reduce unwanted noise and help protect the engine's auxiliary drive components.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99611501576
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 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
A direct-fit idler/deflection pulley for the auxiliary (serpentine) drive belt. Built to OE geometry, it guides the belt path, stabilises belt tracking, and helps maintain correct wrap on the alternator, A/C compressor and power-steering/water pump pulleys.
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 2.7L / 3.4L 2005-08 Manual transmission
Diagram ref No 12
The deflection roller maintains smooth, stable tension in the auxiliary belt system. It helps guide the belt precisely over pulleys, reduces vibration, and ensures efficient power delivery to engine accessories such as the alternator, A/C compressor, and power steering pump. Built with OE-spec bearings, it delivers quiet operation and long-lasting reliability under high-speed, high-load conditions.
Over time, the bearing inside the roller can wear, dry out, or seize due to constant load and heat exposure. A failing roller may cause belt noise, vibration, or premature belt wear, potentially leading to accessory drive failure.
Replace the deflection roller when:
• You hear squeaking, chirping, or grinding from the belt area
• The pulley feels rough or loose when rotated by hand
• During belt or tensioner replacement as preventive maintenance
• There are signs of belt misalignment or edge fraying
Installing a new deflection roller ensures correct belt tracking, quiet performance, and dependable accessory drive operation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710211900
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 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
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MKII GT2 RS 2011-13
This OE Match drive belt is a replacement auxiliary engine belt for Porsche 996 Turbo and 997 Turbo models equipped with air conditioning. It is designed to match the original-style fitment and function. This replacement auxiliary belt helps drive engine accessories and supports reliable operation of the vehicle’s charging and auxiliary systems.
Fits:
Porsche 996 Turbo 2000-2005 M96.70 Engine
Porsche 996 GT2 M96.70 Engine
Porsche 997 Turbo 2007-2009 3.6L M97.70 Engine
Porsche 997 GT2 RS 2011 M97.70 Engine
Diagram ref no 9
The drive belt transfers rotational power from the engine pulley to the relevant auxiliary components. On vehicles with air conditioning, the correct belt specification is essential for proper pulley contact, belt tension, and reliable accessory drive operation.
Functions
• Replaces the auxiliary drive belt
• Suitable for cars with air conditioning
• Transfers drive from the engine pulley to auxiliary components
• Helps maintain correct belt tension and pulley contact
• Supports reliable charging and accessory system operation
• Replaces cracked, glazed, stretched, frayed, noisy, or slipping belts
• OE Match replacement for Porsche 996 Turbo and 997 Turbo 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. If the belt fails, driven auxiliary systems may stop operating correctly, which can lead to warning lights, charging faults, accessory issues, or vehicle breakdown. Replacing the belt helps restore dependable auxiliary drive performance.
When to Replace This Part
• The drive belt is cracked, glazed, frayed, stretched, or worn
• Belt squeal, chirping, or slipping is present
• The belt does not track correctly on the pulleys
• The alternator, pulleys, tensioner, or related components are being serviced
• Charging or accessory drive faults are present
• Preventative belt replacement is being carried out during scheduled maintenance
• The vehicle is undergoing Porsche 996 Turbo or 997 Turbo engine service.
Where it fits on the car
This drive belt fits within the engine auxiliary belt drive system on Porsche 996 Turbo and 997 Turbo models with air conditioning. It runs around the relevant pulleys according to the factory belt routing.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919237951
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 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- 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
Fits:
Porsche 996 Carrera
Porsche 986 Boxster
Porsche 997 Carrera MKI
Porsche 987 Boxster MKI
Porsche 987C Cayman MKI
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Diagram ref no 27
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610215168
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 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 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
This OE Match water pump drive belt is a replacement engine drive belt for Porsche 996 and Boxster 986 models without air conditioning. It is designed to match the original-style fitment and function. This replacement belt helps drive the water pump, supporting correct coolant circulation and reliable engine cooling performance.
Fits:
Porsche 996 Carrera 1997 - 2005
Porsche 986 Boxster 1997 - 2004
Diagram ref no 27
The water pump drive belt transfers rotational drive from the engine pulley to the water pump. This allows coolant to circulate through the engine and radiator system, helping regulate engine temperature and protect the engine from overheating.
Functions
• Replaces the water pump drive belt
• Drives the engine water pump
• Supports correct coolant circulation
• Helps maintain stable engine operating temperature
• Suitable for vehicles without air conditioning
• Replaces cracked, glazed, stretched, frayed, noisy, or slipping belts
• OE Match replacement for Porsche 996 and Boxster 986 cooling system service.
Why Replace This Part?
Water pump drive belts wear over time due to heat, engine vibration, pulley contact, age, and tension changes. A worn belt can crack, glaze, stretch, fray, squeal, slip, or fail completely. If the belt fails, the water pump may stop circulating coolant, which can lead to overheating, coolant temperature warnings, or serious engine damage. Replacing the belt helps maintain dependable cooling system performance.
When to Replace This Part
• The water pump drive belt is cracked, glazed, frayed, loose, or worn
• Belt squeal or chirping is heard during start-up or acceleration
• Coolant temperature rises higher than normal
• The water pump, pulleys, or tensioning components are being serviced
• Preventative belt replacement is being carried out during scheduled maintenance
• The cooling system is being inspected or repaired
• The vehicle is undergoing Porsche 996 or Boxster 986 engine service.
Where it fits on the car
This belt fits within the water pump drive system on Porsche 996 and Boxster 986 models without air conditioning. It runs around the relevant pulleys according to the factory belt routing.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610215167
The product you are viewing cross references to these numbers
OEMatch Belts All Types — Fit, Function, Confidence
OEMatch belts cover a wide variety of drive and auxiliary applications on Porsche vehicles, including alternator, fan and power steering drives. These components play a key role in day-to-day running, so replacing aged or worn belts helps maintain smooth, predictable operation for Porsche models.
- Alternator drive belts for Porsche charging systems
- Engine cooling fan belts for air-cooled and auxiliary fan applications
- Power steering and hydraulic pump belts where fitted
- Auxiliary and accessory drive belts for ancillary components
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original belts all types. OE (Original Equipment) refers to parts matching original specifications for the belts all types and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM belts all types engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. Many owners search for genuine or OEM belts all types; these are direct-fit alternatives designed to match the original form, fit and function.
- Engine drive belts supporting alternator, fan and accessory operation
- Belts covering a variety of Porsche model generations and engine layouts
- Options to support standard maintenance, overhaul or refurbishment work
Belts on Porsche engines transmit drive from the crankshaft pulley to alternators, cooling fans, power steering pumps and other ancillaries. They must follow specified routing and tension to work correctly, and their condition has a direct impact on everyday usability. OEMatch focuses on belts engineered to match the original form, fit and function for Porsche applications, so they fit original mounting points and clearances and are compatible with factory systems where relevant.
- Supports consistent operation of charging and cooling systems
- Helps reduce the likelihood of belt slip under normal use when correctly tensioned
- Allows scheduled maintenance to be carried out using direct-fit replacements
- Provides options suitable for a variety of Porsche models and engine configurations
- Age-related hardening, glazing and cracking of rubber over time
- Incorrect belt tension causing excessive wear or noise
- Contamination from oil or coolant affecting belt material
Replacing tired or noisy belts on a Porsche is an important part of preventative maintenance. Fresh components help keep alternator output stable, maintain intended cooling performance and preserve steering assistance where applicable. Using OEMatch belts made to original-spec dimensions for consistent performance supports reliable day-to-day use and helps avoid unexpected disruption from belt-related issues.
- Components made to original-spec dimensions for consistent performance
- Direct-fit replacements engineered to match original dimensions and tolerances
- Fits original mounting points and clearances on Porsche applications
Support & Advice
These items affect safety-critical systems. Installation should be carried out by a qualified technician following model-specific procedures and torque settings. Use calibrated tools and new fasteners where specified.