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Your Vehicle  //  Porsche  //  991 (911) MK2 2016-2019  //  991.2 Speedster 4.0L (510Bhp) 2019
Porsche991 (911) MK2 2016-2019991.2 Speedster 4.0L (510Bhp) 2019Engine Rebuild PartsBelts / Tensioners / Rollers

Cam idler roller. Porsche 924S / 944 › 94410527302

Cam idler roller. Porsche 924S / 944 - 94410527302 - 04611
4
Check vehicle fitment
94410527302/1
Product Information
Product Information
Cam Idler Roller,  Outer Diameter: 32 mm / Width: 21 mm.
The OE Match Cam Idler Roller is a high-quality replacement timing belt guide roller designed to support and guide the camshaft timing belt within the engine timing system. Featuring an outer diameter of 32mm and a width of 21mm, this precision-engineered idler roller helps maintain correct belt routing, alignment and stability throughout engine operation.

Fits: 
  • Porsche 924S 2.5L 1986-87
  • Porsche 944 2.5L 8V 1982-87
  • Porsche 944 Turbo 2.5L 8V 1985-88  

Diagram Ref No 7

Manufactured to OE specifications for fit, function and durability, the roller is designed to withstand constant rotational loads, engine heat and high-speed operation. It is an essential service component during timing belt replacement and engine maintenance, helping to ensure reliable timing system performance and long-term engine protection.

What This Product Does:
  • Guides and supports the camshaft timing belt.
  • Maintains correct timing belt alignment and routing.
  • Reduces belt vibration and unwanted movement.
  • Promotes even belt wear across the timing system.
  • Helps ensure accurate synchronisation between the crankshaft and camshaft.
  • Supports smooth and reliable engine operation.

Symptoms Of Wear Or Failure:
  • Squealing, chirping or grinding noises from the timing belt area.
  • Excessive timing belt vibration.Rough or noisy bearing operation.
  • Visible wear on the roller surface.Timing belt misalignment.
  • Uneven or accelerated timing belt wear.
  • Bearing play or looseness within the roller.
  • Timing belt failure risk in severe cases.

Why Replacement Matters:

  • The cam idler roller operates continuously whenever the engine is running and is subjected to constant rotational speeds, heat and bearing loads. Over time, the internal bearing can wear, lubrication can deteriorate and the roller surface may become damaged.
  • A failing idler roller can cause timing belt misalignment, increased belt wear and excessive stress on other timing system components. In severe cases, bearing seizure or roller failure can lead to timing belt damage, potentially resulting in significant engine damage and expensive repairs.



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

94410527302
94410527302

The product you are viewing cross references to these numbers
Related products
Drive Belt Tensioning Roller Lever. Porsche 991 / Boxster 981 / Cayman 981C - 9A110221101, 9A210221100, 9A110221200, 99907357901, 94810283900, 0PB903308, PAF008343
4
Drive Belt Tensioning Roller Lever. Porsche 991 / Boxster 981 / Cayman 981C
9A110221101KIT
Product Information
Product Information
Drive Belt Tensioning Roller Lever. Comes complete with roller, bolt and protection cap.

Fits:
Porsche 981 Boxster 2012>>
Porsche 981C Cayman 2014>>
Porsche 991 Carrera 2012>>
Porsche 991 Turbo 2014>>
Porsche 991 GT3 2014>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 2

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

9A110221101KIT
9A110221101
9A210221100
9A110221200
99907357901
94810283900
0PB903308
PAF008343

The product you are viewing cross references to these numbers
Hydraulic belt tensioner. Porsche 997.2 / 991 / 992.1 / Boxster / Cayman - 94810226100 - T39425
3
Hydraulic belt tensioner. Porsche 997.2 / 991 / 992.1 / Boxster / Cayman
Special Order item
0PB903317
Product Information
Product Information
Hydraulic belt tensioner.

Fits:
Porsche 997.2 Carrera 2009-12
Porsche 997.2 Turbo 3.8L 2010-13
Porsche 991.1 Carrera 2012-16
Porsche 991.2 Carrera 2017-19
Porsche 991 Turbo 2014-20
Porsche 991 GT3 3.8L 2013-21
Porsche 992.1 Carrera 2019>>
Porsche 992 Turbo 2020>>
Porsche 992 GT3 2021>>

Porsche 987.2 Boxster 2009-12 incl. Spyder
Porsche 981 Boxster 2012-16 incl. Spyder
Porsche 982 Boxster GTS 4.0L / Spyder 4.0L 2017>>

Porsche 987C.2 Cayman 2009-12
Porsche 981C Cayman 2013-16 incl. GT4
Porsche 982C Cayman GTS 4.0L / GT4 4.0L 2017>> 

Click 'Zoom in' for large parts diagram
Diagram ref no 3

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

0PB903317
94810226100

The product you are viewing cross references to these numbers
Drive belt tensioner lever bolt. Porsche 991 / 992 / 981 Boxster / Cayman / 718 / 997.2 / 987.2 M10 x 30 - PAF008343, 99907357901, PAF008343A
4
Drive belt tensioner lever bolt. Porsche 991 / 992 / 981 Boxster / Cayman / 718 / 997.2 / 987.2 M10 x 30
PAF008343A/1
Product Information
Product Information

OE Match supplies this M10 x 30 drive belt tensioner lever bolt, it is a replacement fastener for the auxiliary belt tensioner assembly, not a complete tensioner.

Fits

  • Porsche 991.1 2012-16
  • Porsche 991.2 2017-19
  • Porsche 992 2021>>
  • Porsche 981 Boxster 2012-16
  • Porsche 718 (982) Boxster 2017>>
  • Porsche 981C Cayman 2014-16
  • Porsche 718C (982C) Cayman 2017>>

Check fitment for your specific vehicle (model, year, engine) before ordering.

Diagram Ref No: 20

What This Product Does

This bolt provides a fixing within the auxiliary drive belt tensioner lever assembly. The lever, roller, protective cap and hydraulic tensioner are separate components; the bolt does not itself generate belt tension or control valve timing.

Functions

  • Provides the specified threaded fixing for the tensioner lever assembly.
  • Allows damaged or missing fastening hardware to be renewed during belt-system repairs.

Technical Details

  • Brand: OE Match.
  • Part reference: PAF008343.
  • Specified dimensions: M10 x 30.
  • Described in the assembly diagrams as a round-head screw.
  • Reference 99907357901 also appears for this fixing in the 991.1 diagram.
  • Identified as component 3 of 4 within applicable tensioning roller assemblies.

Symptoms of Fault

Inspect for damaged threads, a worn tool-engagement surface, corrosion or missing hardware. Belt squeal, chirping, pulley movement and belt dust warrant inspection of the complete belt drive rather than assuming the bolt is responsible.

Why Replacement Matters

Renewing damaged fastening hardware supports correct reassembly. Check the adjoining lever, roller and mounting threads before fitting, and use the vehicle-specific workshop tightening procedure. Do not substitute tightening figures intended for a different tensioner fastener.

FAQs

Does this include the tensioner or pulley?
No. This product is the lever bolt; the associated assembly components are separate parts.

Is this a timing belt component?
It is identified for the auxiliary V-belt or poly-V-belt tensioner assembly, rather than the engine valve-timing system.

What should I check before fitting?
Confirm PAF008343 against the vehicle application and inspect the mating threads and surrounding belt-drive components.



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

PAF008343A
PAF008343
99907357901
PAF008343A

The product you are viewing cross references to these numbers
Drive belt tensioner lever & pulley. Porsche 991 / Boxster / Cayman - 33001010, 94810240200, 9A110221101, 9A110221200
5
Drive belt tensioner lever & pulley. Porsche 991 / Boxster / Cayman
0PB903308KIT
Product Information
Product Information
Drive belt tensioner lever & pulley, 
Includes belt tensioner pulley with NTN bearing
This OE Match drive belt tensioner lever and pulley kit is a replacement accessory belt tensioning kit for selected Porsche 991, Boxster, and Cayman models. It is designed to maintain the correct tension on the auxiliary drive belt, helping the belt run smoothly across the engine pulleys.

Fits:
Porsche 987.2 Boxster 2009 - 2012
Porsche 981 Boxster 2012 - 2016
Porsche 981 Boxster Spyder 2016
Porsche 982 (718) Boxster 2017>>
Porsche 987C.2 Cayman 2009 - 2012
Porsche 981C Cayman 2012 - 2016
Porsche 981C Cayman GT4 2016
Porsche 982C (718C) Cayman 2017>>
Porsche 991.1 Carrera 2012 - 2016
Porsche 991.2 Carrera 2017 - 2018
Porsche 991 Turbo / GT2 2014 0 20-18
Porsche 991 GT3 2014 - 2018

Diagram ref no 19

The drive belt tensioner lever and pulley assembly keeps the auxiliary belt under the correct operating tension. This allows the belt to reliably drive engine accessories such as the alternator, water pump, air conditioning compressor, and other belt-driven components depending on model specification.

Functions:
•  Maintains correct auxiliary drive belt tension
•  Guides the drive belt smoothly over the pulley system
•  Helps prevent belt slip, squeal, or misalignment
•  Supports reliable operation of belt-driven engine accessories
•  Reduces vibration and uneven belt movement
•  Helps protect the belt from premature wear
•  OE Match replacement kit for worn tensioner lever and pulley components

Why Replace This Part?
The tensioner lever and pulley are exposed to constant rotation, heat, vibration, and belt load. Over time, the pulley bearing can wear, the lever mechanism can weaken, and the tensioner may no longer hold the belt correctly. A worn tensioner or pulley can cause belt noise, slipping, charging problems, cooling issues, or accessory drive failure. Replacing the kit helps restore reliable belt tension and protects the auxiliary drive system.

When to replace
•  The auxiliary drive belt is slipping, squealing, or jumping
•  There is noise from the pulley bearing or tensioner area
•  The pulley has play, roughness, wobble, or visible damage
•  The tensioner no longer holds correct belt tension
•  The belt shows uneven wear, cracking, or glazing
•  The alternator, water pump, or air conditioning drive is affected
•  The drive belt is being replaced as part of major service
•  During engine accessory drive repair or preventative maintenance.

Where it fits on the car
This kit fits on the engine accessory drive system, where it tensions and guides the auxiliary drive belt. It is mounted at the drive belt tensioner position on the front/side of the engine, depending on the model and engine layout.

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

0PB903308KIT
33001010
94810240200
9A110221101
9A110221200

The product you are viewing cross references to these numbers