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- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
Relay roller for ribbed v-belt
Ribbed V-belt idler pulley by OE Match for selected Porsche 957 and 958 Cayenne 3.0L Diesel models. This component is used within the engine auxiliary belt drive.
Fits:
Porsche 957 Cayenne Diesel 3.0L 2009 - 2010
Porsche 958 Cayenne Diesel 3.0L 2011
Diagram ref no 11
What This Product Does
The relay roller, also known as an idler pulley or guide pulley, provides a rotating contact point for the ribbed V-belt. It helps route the belt correctly around the accessory-drive components while supporting stable belt alignment.
Functions
- Guides the ribbed V-belt along its intended path
- Provides a smooth rotating surface for the belt
- Supports correct belt alignment within the accessory drive
- Helps reduce unwanted belt movement and tracking problems
Technical Details
- Part number: 95510211801
- Component type: idler pulley or relay roller for the Poly-V-belt drive
- Diagram ref no 11
Symptoms of Fault
- Squealing or chirping that changes with engine speed
- Rumbling or whining from the pulley bearing
- Visible pulley wobble while the engine is running
- Belt dust around the pulleys or nearby components
- Uneven belt tracking, glazing or edge wear
- Roughness or play when the pulley is checked with the engine switched off
Why Replacement Matters
A worn pulley bearing can create noise, unwanted movement and irregular belt tracking. Continued use may accelerate wear of the ribbed belt or other parts in the accessory drive. Inspect the belt, tensioner and adjacent rollers at the same time so that worn supporting components can be identified before reassembly.
FAQs
- Is this the belt tensioner?
No. It is an idler or guide pulley within the ribbed V-belt system. The tensioner is a separate component. - Should the belt be inspected during replacement?
Yes. Check for cracking, glazing, contamination and uneven edge wear, and inspect the other rollers and tensioner for noise or play. - How should compatibility be confirmed?
Cross-check part number 95510211801 against the vehicle model, production year, engine code and the relevant parts diagram.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510211801
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
Fits:
Porsche 996 Turbo
Porsche 997 Turbo
Porsche 996 GT3 1999-05
Porsche 997 GT3 2007-11
Diagram ref No 8
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 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
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
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Full Pulley & Belt Kit – Tensioner, Idlers &
Drive Belt – Without Air Conditioning
This kit includes a replacement tensioner element, all three pulleys, a new drive belt, and is suitable for models without air-conditioning (option code 574).
Maintain reliable auxiliary drive performance on your
Porsche Mezger engine with this complete Full Pulley & Belt Kit for Porsche
996 GT3 and GT3 RS models without air conditioning from 1999 to 2005.
Fits:
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Designed as a comprehensive preventative maintenance and
service solution, this kit includes the essential tensioner, idler pulleys, and
drive belt components required to restore smooth accessory drive operation,
maintain correct belt tension, and reduce the risk of pulley or belt-related
failures.
Kit Contents:
1x Original Porsche Tensioner Element
1x Original Porsche Drive Belt
1x OE Match Tensioner Pulley Incl. Nut, Bolt, & Dust Cap
1x OE Match Upper Idler Pulley, Cover & Bolt
1x OE Match Lower Idler Pulley, Cover & Bolt
The auxiliary drive system on the high-revving Porsche GT3 Mezger engine operates under constant thermal load, engine vibration, and sustained high RPM use. Over time, tensioners, idler pulleys, and drive belts can wear, leading to pulley noise, belt slip, bearing failure, or reduced accessory efficiency.
Replacing all related components together helps ensure long-term reliability while protecting critical engine-driven systems and maintaining proper auxiliary drive performance.
This complete service kit is ideal for routine maintenance, preventative servicing, engine rebuild projects, or resolving common issues such as belt squeal, noisy pulleys, or worn tensioner operation on Porsche 996 GT3 and GT3 RS models without air conditioning.
Engineered for precise fitment and dependable operation, this kit helps maintain smooth accessory drive performance for both road and track-focused Porsche applications.
Perfect for Porsche enthusiasts, independent specialists, and workshops maintaining Mezger-powered GT3 models.
Key Features
• Full pulley and drive belt service kit
• Designed for Porsche 996 GT3 and GT3 RS models without air conditioning
• Suitable for 1999-2005 vehicles
• Includes tensioner, idler pulleys, and drive belt
• Complete auxiliary drive system maintenance solution
• Helps restore correct belt tension and alignment
• Reduces risk of belt slip and pulley failure
• Helps eliminate belt squeal and pulley noise
• Supports reliable accessory drive operation
• OEM-style fitment and functionality
• Suitable for road and track-focused applications
Why Replace the Pulley & Belt System?
The auxiliary drive system powers critical engine accessories and is continuously exposed to heat, vibration, and high mechanical loads.
Worn pulleys, tensioners, or belts can cause:
• Belt squeal or chirping noises
• Inconsistent belt tension
• Pulley bearing noise
• Premature belt wear
• Reduced accessory performance
• Potential belt or pulley failure
Replacing all related components together helps restore smooth operation and improve long-term reliability.
Complete Preventative Maintenance Solution
This full pulley and belt kit provides a convenient all-in-one solution for servicing the auxiliary drive system on Porsche 996 GT3 and GT3 RS models.
Benefits include:
• Simplified servicing
• Correct component compatibility
• Reduced installation downtime
• Improved long-term reliability
• Professional workshop-level maintenance support
Ideal for preventative maintenance and performance-focused Porsche servicing.
Designed for the Porsche Mezger GT3 Engine
The legendary naturally aspirated Mezger engine found in the Porsche 996 GT3 and GT3 RS is engineered for sustained high-performance driving, making proper auxiliary drive maintenance essential for reliability and engine performance.
This kit helps support:
• Reliable accessory drive operation
• Consistent belt performance
• Smooth pulley function
• Reduced mechanical noise
• Proper belt alignment and tension control
Perfect for road, fast road, and track-focused GT3 applications.
OEM-Style Fitment & Reliability
Designed for precise fitment and dependable operation, this kit integrates with the factory auxiliary drive system to maintain correct belt routing and smooth operation.
Advantages include:
• OEM-style installation
• Reliable belt tracking
• Smooth pulley rotation
• Consistent tension control
• Reduced vibration and operating noise
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PULLEYKIT996GT3
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Full Pulley & Belt Kit – Tensioner, Idlers &
Drive Belt – With Air Conditioning
This kit includes a replacement tensioner element, all three pulleys, a new drive belt, and is suitable for models with air-conditioning (option code 573).
Maintain reliable auxiliary drive performance on your
Porsche Mezger engine with this complete Full Pulley & Belt Kit for Porsche
996 GT3 and GT3 RS models equipped with air conditioning from 1999 to 2005.
Fits:
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Designed as a comprehensive preventative maintenance and
service solution, this kit includes the essential tensioner, idler pulleys, and
drive belt components required to restore smooth accessory drive operation,
maintain correct belt tension, and reduce the risk of pulley or belt-related
failures.
Kit Contents:
1x Original Porsche Tensioner Element
1x Meyle Porsche Drive Belt
1x OE Match Tensioner Pulley Incl. Nut, Bolt, & Dust Cap
1x OE Match Upper Idler Pulley, Cover & Bolt
1x OE Match Lower Idler Pulley, Cover & Bolt
The auxiliary drive system on the high-revving Porsche GT3 Mezger engine is continuously exposed to elevated temperatures, engine vibration, and sustained mechanical load. Over time, tensioners, idler pulleys, and drive belts can wear, leading to belt noise, bearing failure, belt slip, or reduced accessory efficiency.
Replacing all related components together helps ensure long-term reliability while protecting critical engine-driven systems and maintaining proper accessory drive performance.
This complete service kit is ideal for routine maintenance, engine refresh projects, preventative servicing, or resolving common symptoms such as belt squeal, noisy pulleys, or worn tensioner operation on Porsche 996 GT3 and GT3 RS models.
Engineered for precise fitment and dependable operation, this kit helps maintain smooth auxiliary drive performance for both road and track-focused Porsche applications.
Perfect for Porsche enthusiasts, independent specialists, and workshops maintaining Mezger-powered GT3 models.
Key Features
• Full pulley and drive belt service kit
• Designed for Porsche 996 GT3 and GT3 RS models with air conditioning
• Suitable for 1999-2005 vehicles
• Includes tensioner, idler pulleys, and drive belt
• Complete auxiliary drive system maintenance solution
• Helps restore correct belt tension and alignment
• Reduces risk of belt slip and pulley failure
• Helps eliminate belt squeal and pulley noise
• Supports reliable accessory drive operation
• OEM-style fitment and functionality
• Suitable for road and track-focused applications
Why Replace the Pulley & Belt System?
The auxiliary drive system powers critical engine accessories and is continuously exposed to heat, vibration, and mechanical load.
Worn pulleys, tensioners, or belts can cause:
• Belt squeal or chirping noises
• Inconsistent belt tension
• Pulley bearing noise
• Premature belt wear
• Reduced accessory performance
• Potential belt or pulley failure
Replacing all related components together helps restore smooth operation and improve long-term reliability.
Complete Preventative Maintenance Solution
This full pulley and belt kit provides a convenient all-in-one solution for servicing the auxiliary drive system on Porsche 996 GT3 and GT3 RS models.
Benefits include:
• Simplified servicing
• Correct component compatibility
• Reduced installation downtime
• Improved long-term reliability
• Professional workshop-level maintenance support
Ideal for preventative maintenance and performance-focused Porsche servicing.
Designed for the Porsche Mezger GT3 Engine
The legendary naturally aspirated Mezger engine found in the Porsche 996 GT3 and GT3 RS is engineered for sustained high-performance driving, making proper auxiliary drive maintenance essential for reliability and engine performance.
This kit helps support:
• Reliable accessory drive operation
• Consistent belt performance
• Smooth pulley function
• Reduced mechanical noise
• Proper belt alignment and tension control
Perfect for road, fast road, and track-focused GT3 applications.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PULLEYKIT996GT3-AC
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
