Water pump pulley. Porsche 957 Cayenne / 958 Cayenne / 970 Panamera › 94810609101

Drive belt tensioner roller.

Fits:
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 982 (718) Boxster 2017>>
Porsche 981C Cayman 2012-16
Porsche 981C Cayman GT4 2016
Porsche 982C (718C) Cayman 2017>>
Porsche 991.1 Carrera 2012-16
Porsche 991.2 Carrera 2017-18
Porsche 991 Turbo / GT2 2014-18
Porsche 991 GT3 2014-18
Porsche 955 Cayenne S / Turbo 2003-06

Click 'Zoom in' for large parts diagram.
Diagram ref no 19

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Related, superseded, cross reference or alternative numbers for comparison.

9A110221200

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Drive belt tensioner roller by OE Match for selected Porsche 991, Boxster, Cayman and Cayenne applications. Reference 9A110221200 identifies the roller component within the auxiliary belt tensioning mechanism.

Fits:

• Porsche Boxster 981 2.7L 2012–16
• Porsche Boxster 981 S / GTS 3.4L 2012–16
• Porsche Boxster 981 Spyder 3.8L 2016
• Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
• Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
• Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
• Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
• Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
• Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
• Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
• Porsche Cayman 2.7L 981 2013–16
• Porsche Cayman S / GTS 3.4L 981 2013–16
• Porsche Cayman GT4 3.8L 2015–16
• Porsche Cayman 718 2.0L Manual (300 Bhp)
• Porsche Cayman 718 2.0L PDK (300 Bhp)
• Porsche Cayman S 718 2.5L Manual (350 Bhp)
• Porsche Cayman S 718 2.5L PDK (350 Bhp)
• Porsche Cayman T 718 2.0L Manual (300 Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
• Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012–16
• Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012–16
• Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012–16
• Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012–16
• Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016–19
• Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016–19
• Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016–19
• Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016–19
• Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016–19
• Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016–19
• Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016–19
• Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016–19
• Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016–19
• Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016–19
• Porsche 991.1 Turbo 3.8L (520 Bhp) 2014–16
• Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014–16
• 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 991.2 GT2 RS 3.8L PDK (700 bhp) 2018–19
• Porsche 991.1 GT3 3.8L (475 Bhp) 2014–16
• Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015–16
• Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017–19
• Porsche 991.1 R 4.0L (500 Bhp) 2016
• Porsche 955 Cayenne S 4.5L V8 2003–06
• Porsche 955 Cayenne Turbo 4.5L 2003–06
• Porsche 955 Cayenne Turbo S 4.5L 2006>>

Diagram Ref No 19

What This Product Does
The roller provides the rotating contact surface used by the auxiliary belt tensioning mechanism. It works with the associated tensioner hardware to support belt travel; it is not an engine timing component or a complete tensioner assembly.

Functions

• Provides rolling contact with the auxiliary drive belt.
• Supports belt guidance through the tensioning mechanism.
• Allows renewal of the roller component when wear is identified.

Technical Details

• Brand: OE Match.
• Product reference: 9A110221200.
• Component type: drive belt tensioning roller.
• The 955 Cayenne diagram describes this reference as a tensioning roller with cap.
• Several diagrams identify the roller as component 2 of a four-component assembly; this is an assembly position, not a pack quantity.
• Associated levers, hydraulic tensioners, protective caps and screws are identified separately in the diagrams; do not assume a complete mechanism is included.

Symptoms of Fault

• Chirping or squealing from the auxiliary belt area.
• A rumbling or whining roller bearing.
• Visible pulley wobble or abnormal belt tracking.
• Belt dust, glazing or uneven belt wear.

These signs can also arise from the belt, other pulleys or the tensioner mechanism. Establish the source before selecting replacement parts.

Why Replacement Matters
A worn or seized roller can interrupt belt operation and contribute to further belt wear. Replacing a confirmed faulty roller addresses that component without confusing it with the separately identified tensioner hardware. Inspect the belt and neighbouring pulleys during the repair, and check for contamination or wear elsewhere in the mechanism. OE Match's Porsche-focused replacement programme uses application and original-reference checks to identify suitable components.

FAQs

Does an undamaged belt rule out roller wear?
No. The roller bearing may deteriorate even when the belt has no obvious external damage.

Should the other belt-drive components be checked?
Yes. Inspect the belt, adjacent rollers and tensioner mechanism so that another worn component is not overlooked.

How should compatibility be confirmed?
Compare reference 9A110221200 with the required component and check the precise vehicle application, including engine and production details.

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

9A110221200

The product you are viewing cross references to these numbers

Drive belt
The Genuine Porsche 9A210222500 drive belt is an OE V-ribbed / serpentine belt for selected Porsche 718 Boxster S and 718 Cayman S 2.5L models. It drives the engine auxiliary components, helping maintain reliable charging and accessory system operation. Ideal for routine servicing or replacing a cracked, noisy, slipping or worn original belt.

Fits
Porsche 718 Boxster S 2.5Ltr 2017>>
Porsche 718 Cayman S 2.5Ltr 2017>>

Diagram ref no 1

This original Porsche V-ribbed / serpentine belt is part of the engine auxiliary drive system and helps drive key belt-driven components from the engine pulley system.

What This Part Does / Functions
• Transfers drive from the engine pulley system to auxiliary components
• Helps drive the alternator to maintain battery charging
• Supports correct operation of the engine accessory drive system
• Helps maintain reliable auxiliary component performance
• Provides the correct OE Porsche belt length, rib profile and fitment
• Helps reduce belt slip, squeal and accessory-drive faults when fitted correctly
• Replaces a cracked, worn, stretched, glazed or noisy original belt
• Maintains factory Porsche service specification and reliability.

Why Replace This Part?
The drive belt is a normal service wear item. Over time, heat, pulley contact, engine speed changes and belt tension can cause the belt to crack, glaze, stretch, fray or lose grip. A worn belt may cause squealing noises, charging faults, accessory-drive issues or warning lights. Replacing it with a Genuine Porsche OE drive belt helps restore correct auxiliary drive operation and supports reliable engine accessory performance. It is also good practice to inspect the tensioner, idler pulleys and related belt-drive components when replacing the belt.

When to Replace This Part
•  If 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 alternator, belt tensioner, idler pulleys or related accessory-drive components
•  If the belt has been contaminated by oil, coolant or debris
•  If charging or accessory-drive 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 of the Porsche 718 Boxster S and 718 Cayman S 2.5L engine. It routes around the relevant pulleys, idlers and tensioner according to the factory belt layout.

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

9A210222500

The product you are viewing cross references to these numbers