Belts All Types

Drive Belt Tensioning Roller.

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

Drive belt, for cars with air conditioning
The MEYLE drive belt is an OEM-quality auxiliary drive belt designed for Porsche 996 Turbo, 996 GT2, 997 Turbo, and selected 997 GT2 RS models equipped with factory air conditioning. Manufactured as a direct replacement for Porsche part number 99919237951, this high-quality Poly-V belt ensures efficient power transmission from the engine to essential auxiliary components, including the alternator, air conditioning compressor, and other belt-driven accessories.

Fits:
for cars with air conditioning

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

A premium MEYLE Poly-V auxiliary drive belt designed as a direct replacement for Porsche part number 99919237951 on vehicles equipped with factory air conditioning. Transfers engine power to the alternator, air conditioning compressor, and other auxiliary components, helping maintain reliable charging performance, climate control operation, and smooth engine accessory function.

Key Features & Benefits
•   Premium MEYLE OEM-quality replacement
•   Direct replacement for Porsche  99919237950 / 99919237951
•   Designed for vehicles with factory air conditioning
•   Durable EPDM rubber construction
•   Reinforced tensile cords for extended service life
•   Excellent resistance to heat, cracking, and stretching
•   Quiet, efficient operation with OEM-quality fitment

Why Replacing the Drive Belt Matters
The auxiliary drive belt operates whenever the engine is running and is constantly exposed to heat, tension, and vibration. As it wears, it can crack, stretch, or slip, affecting battery charging, air conditioning performance, and other engine-driven accessories. Replacing the belt at the recommended service interval helps maintain reliable vehicle operation and reduces the risk of unexpected breakdowns.

When to Replace the Drive Belt
•   Visible cracks, fraying, or glazing
•   Squealing or chirping noises from the engine bay
•   Signs of stretching or rib wear
•   During major engine or accessory drive servicing
•   If contaminated by oil or coolant
•   At the manufacturer's recommended replacement interval

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99919237951

The product you are viewing cross references to these numbers

Drive belt, for cars with air conditioning
The Genuine Porsche 99919237951 drive belt is an OE Poly-V / serpentine belt for selected Porsche 996 Turbo and 997 Turbo models with air conditioning. It drives the engine auxiliary components according to the A/C belt routing, helping maintain reliable charging, air-conditioning and accessory system operation. Ideal for routine service or replacing a cracked, noisy, slipping or worn original belt.

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

This belt is specifically listed for Porsche 996 Turbo / 997 Turbo applications with air conditioning. It replaces earlier Porsche part number 99919237950.

What This Part Does / Functions
•  Transfers drive from the engine pulley system to auxiliary components
•  Supports operation of the alternator and other belt-driven accessories
•  Works with the air-conditioning compressor drive layout on cars with A/C
•  Helps maintain correct accessory belt routing and pulley engagement
•  Supports reliable charging and auxiliary system operation
•  Helps prevent belt slip, squeal and accessory-drive faults when correctly fitted
•  Provides the correct OE Porsche belt profile, length and fitment
•  Replaces a cracked, worn, stretched, glazed or noisy original belt.

Why Replace This Part?
The drive belt is a service wear item and is exposed to heat, tension, pulley contact and engine movement. Over time, it can crack, glaze, stretch, fray or lose grip on the pulleys. A worn belt may cause squealing, slipping, charging issues, air-conditioning faults or complete accessory-drive failure. Replacing it with a Genuine Porsche OE drive belt helps restore reliable accessory drive operation and ensures the correct belt specification is used for Turbo models with air conditioning.

When to Replace This Part
•   f the belt is cracked, glazed, frayed or visibly worn
•   If the belt squeals, slips or makes noise during engine operation
•   If the belt has stretched or no longer runs correctly
•   During scheduled service or preventative belt replacement
•   When replacing the belt tensioner, idler pulleys, alternator or A/C compressor
•   If the belt has been contaminated by oil, coolant or debris
•   If charging or air-conditioning faults are linked to belt slip
•   When restoring the engine bay with correct OE Porsche service parts.

Where It Fits on the Car
This belt fits on the engine accessory drive system. It routes around the relevant pulleys, tensioner and driven components according to the factory air-conditioning belt layout.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99919237951

The product you are viewing cross references to these numbers

Drive belt, for cars with air conditioning
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

Drive belt.

Fits:
Porsche 996 GT3 1999-2005
Porsche 997 GT3 MKI 2006>>
Porsche 997 GT3 MKII 2009>>

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99610215195

The product you are viewing cross references to these numbers

Drive belt. Porsche WITH Air con 996 GT3 / 997 GT3

Fits:
Porsche 996 GT3 1999-2005
Porsche 997 GT3 MKI 2006>>
Porsche 997 GT3 MKII 2009>>

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99610215195

The product you are viewing cross references to these numbers

Lightweight Under drive Pulley is made from 6061-T6 aluminium. Offers improved HP & TQ by reducing drag from the power steering pump, A/C, water pump and alternator.

Pulley outer diameter: 123mm (measured from ribs to ribs)

Increase your engine output by reducing the draw of the engine's ancillaries ie the power steering pump, Air Conditioning, water pump and alternator by slowing them down and reducing the horsepower they use.

Underdrive pulley is one of the cheapest returns for the money spent when it comes to actual performance and horsepower gains for track and street use cars.

Installation tool (wrench) included, new OEM crankshaft pulley bolt is recommended but not included with this product.

Note: In order to accommodate the smaller diameter pulley, the timing boss on the engine case must be shortened using die grinder or similar tool (see link for instructions below).

Replacement Pulley for Original Porsche parts No. 99610211563

Fits:
Porsche 996 3.4L
Porsche 996 3.6L
Porsche 997 3.6L
Porsche Boxster 986
Porsche Boxster 987
Porsche Cayman 987C

**Please note you will need a new shorter Pully Belt which you can purchase from us.
99610215199/1
Under drive pulley w/ air conditioning - 2100mm

99610215198/1
Under drive pulley w/o air conditioning - 1905mm

Underderive Pulley Installation Instructions - CLICK HERE

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

3609001601

The product you are viewing cross references to these numbers

Drive belt for cars WITH Air con.

Fits:
Porsche 996 Carrera
Porsche 986 Boxster
Porsche 997 Carrera MKI
Porsche 987 Boxster MKI
Porsche 987C Cayman MKI

Click 'Zoom in' for large parts diagram.
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

Drive belt for cars WITH Air con.

Fits:
Porsche 996 Carrera
Porsche 986 Boxster
Porsche 997 Carrera MKI
Porsche 987 Boxster MKI
Porsche 987C Cayman MKI

Click 'Zoom in' for large parts diagram.
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

Drive belt for cars WITH Air con.

Fits:
Porsche 996 Carrera
Porsche 986 Boxster
Porsche 997 Carrera MKI
Porsche 987 Boxster MKI
Porsche 987C Cayman MKI

Click 'Zoom in' for large parts diagram.
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