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Drive belt deflection roller. Porsche 996 / Boxster 987 / Cayman 987C / 997 - 99710211900
99710211900/1
Vehicle Group
- 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
Information
Drive belt deflection roller.
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Related, superseded, cross reference or alternative numbers for comparison.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
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
99710211900
The product you are viewing cross references to these numbers
Price: €60.32
In stock
Related products
Vehicle Group
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
- Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
- Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
- Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
- Porsche 992.1 Turbo 3.8L 2020-24
- Porsche 992.1 Turbo S 3.8L 2020-24
- Porsche 992.1 Turbo Cabriolet 3.8L 2020-24
- Porsche 992.1 Turbo S Cabriolet 3.8L 2020-24
Information
Drive belt.
Fits
Porsche 991.2 S 3.0L 2016-2019
For cars with Sports chassis with PASM and PDCC (option code 031)
For cars with Electronic damper control for PASM and PDCC (option code 352)
Porsche 992.1 S up to 14.02.2020 cars with PDCC
Porsche 992 Turbo / Turbo S 2020>> with PDDC (option code 1P7)
This part superseeds:
- 9A110222100
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0PB903137B
The product you are viewing cross references to these numbers
Fits
Porsche 991.2 S 3.0L 2016-2019
For cars with Sports chassis with PASM and PDCC (option code 031)
For cars with Electronic damper control for PASM and PDCC (option code 352)
Porsche 992.1 S up to 14.02.2020 cars with PDCC
Porsche 992 Turbo / Turbo S 2020>> with PDDC (option code 1P7)
This part superseeds:
- 9A110222100
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0PB903137B
0PB903137B
9A110222100
The product you are viewing cross references to these numbers
Price: €75.39
Orderable
Vehicle Group
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
- Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
- Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
- Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
- Porsche 992.1 Turbo 3.8L 2020-24
- Porsche 992.1 Turbo S 3.8L 2020-24
- Porsche 992.1 Turbo Cabriolet 3.8L 2020-24
- Porsche 992.1 Turbo S Cabriolet 3.8L 2020-24
Information
Drive belt Porsche 992 turbo with PDDC
991.2 For cars with
Option 352 Electronic damper control for PASM and PDCC
031 Electronic damper control for PASM and PDDC
For 992 S with PDDC up to 14.06.2020
Replaces 9A210222200
Fits
Porsche 991.2S with sports suspension (030) PASM (475) and PASM without lowering (477)
Porsche 991 turbo 2014-2020
Porsche 992 Turbo - with standard suspension (1P0)
Porsche 992 Turbo S - with standard suspension(1P0)
Porsche 992.1 S with PDCC up to 14.06.2020
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0PB903137C
The product you are viewing cross references to these numbers
991.2 For cars with
Option 352 Electronic damper control for PASM and PDCC
031 Electronic damper control for PASM and PDDC
For 992 S with PDDC up to 14.06.2020
Replaces 9A210222200
Fits
Porsche 991.2S with sports suspension (030) PASM (475) and PASM without lowering (477)
Porsche 991 turbo 2014-2020
Porsche 992 Turbo - with standard suspension (1P0)
Porsche 992 Turbo S - with standard suspension(1P0)
Porsche 992.1 S with PDCC up to 14.06.2020
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0PB903137C
0PB903137C
9A210222200
The product you are viewing cross references to these numbers
Price: €73.00
Orderable
Vehicle Group
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
- Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
- Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
- Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
- Porsche 992.1 Turbo 3.8L 2020-24
- Porsche 992.1 Turbo S 3.8L 2020-24
- Porsche 992.1 Turbo Cabriolet 3.8L 2020-24
- Porsche 992.1 Turbo S Cabriolet 3.8L 2020-24
Information
Drive belt Porsche 992 turbo with PDDC
991.2 For cars with
Option 352 Electronic damper control for PASM and PDCC
031 Electronic damper control for PASM and PDDC
For 992 S with PDDC up to 14.06.2020
Replaces 9A210222200
Fits
Porsche 991.2S with sports suspension (030) PASM (475) and PASM without lowering (477)
Porsche 991 turbo 2014-2020
Porsche 992 Turbo - with standard suspension (1P0)
Porsche 992 Turbo S - with standard suspension(1P0)
Porsche 992.1 S with PDCC up to 14.06.2020
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0PB903137C
The product you are viewing cross references to these numbers
991.2 For cars with
Option 352 Electronic damper control for PASM and PDCC
031 Electronic damper control for PASM and PDDC
For 992 S with PDDC up to 14.06.2020
Replaces 9A210222200
Fits
Porsche 991.2S with sports suspension (030) PASM (475) and PASM without lowering (477)
Porsche 991 turbo 2014-2020
Porsche 992 Turbo - with standard suspension (1P0)
Porsche 992 Turbo S - with standard suspension(1P0)
Porsche 992.1 S with PDCC up to 14.06.2020
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0PB903137C
0PB903137C
9A210222200
The product you are viewing cross references to these numbers
Price: €46.34
In stock