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Belts All Types

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DISPLAYING 1 to 16 (of 18 products)
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92810557104/1KIT
Product Information
Product Information
Timing belt tensioner & idler rollers kit
This OE Match timing belt, tensioner, and idler rollers kit is a replacement front engine timing service kit for Porsche 928 models from 1978 to 1986. It includes the RD tooth timing cam belt, camshaft tensioner roller, and camshaft idler roller required for key timing belt drive service.

Fits:
Porsche 928S4 5.0L 1987 - 1992
Porsche 928GT 5.0L 1989 - 1991
Porsche 928GTS 5.4L 1992 - 1995 

Diagram ref no; 1, 9, 10

The kit helps maintain correct camshaft timing, belt routing, and belt tension within the engine timing system. The timing cam belt synchronises crankshaft and camshaft movement, while the tensioner and idler rollers guide and support the belt as it operates.

Functions
  Replaces the timing cam belt
  Includes camshaft tensioner roller
•  Includes camshaft idler roller
•  Supports correct camshaft timing
  Helps maintain proper belt tension and belt tracking
  Replaces worn, noisy, rough, seized, or aged timing components
  OE Match replacement kit for Porsche 928 timing belt service.

Why Replace This Kit?
Timing belt and roller components are exposed to heat, age, mileage, engine load, and constant rotation. A worn timing belt can crack, stretch, lose teeth, or fail without warning, while worn rollers can become noisy, rough, loose, or seized. Replacing the belt and rollers together helps protect the timing system and supports reliable engine operation.

When to Replace This Kit
  The timing belt service interval is due
  The timing belt is cracked, worn, contaminated, stretched, or aged
  Rollers are noisy, rough, loose, or seized
  Belt tracking or tension issues are present
  Front engine timing components are being serviced
  Preventative replacement is being carried out during major maintenance
  The vehicle is undergoing Porsche 928 engine service or restoration.

Where it fits on the car
This kit fits at the front engine timing belt drive area on Porsche 928 models from 1978 to 1986. It supports the camshaft timing belt system according to the factory timing layout.



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92810557104
92810515750
92810551212
92810557104

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99919233550
Product Information
Product Information
Air con belt. Size 12.5 x 1080.
porsche

Fits:
Porsche 928 1990-95
Car with option:
M637 Club Sport CS
M573 Air Conditioner
M639 Version GT

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99919233550
99919233550

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99919230650
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Air pump belt.
porsche

Fits:
Porsche 928 S4 / GT / GTS 1987-95

Click 'Zoom in' for large parts diagram.
Diagram ref no 11

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99919230650
99919230650

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99919230650/1
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Air pump belt.
Width: 13,0 mm, Length: 950,0 mm.

dayco

Fits:
Porsche 928 S4 / GT / GTS 1987-95

Click 'Zoom in' for large parts diagram.
Diagram ref no 11

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99919230650
99919230650
13A0950C

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Special Order item
99919226650
Product Information
Product Information
Alternator belt.

porsche

Fits:
Porsche 928 1985-95
Cars with manual transmission only

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99919226650
99919226650
99919226950

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99919226650/1
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Alternator Belt. Number of ribs: 6, Length: 862,0 mm.

dayco

Fits:
Porsche 928 1985-95
Cars with manual transmission only

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

99919226650
99919226650
6PK862
99919226950

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99919234750
Product Information
Product Information
Alternator belt.

porsche

Fits:
Porsche 928 1987-95
Automatic cars only

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

99919234750
99919234750

The product you are viewing cross references to these numbers
99919234750/1
Product Information
Product Information
Alternator belt.

dayco

Fits:
Porsche 928 1987-95
Automatic cars only

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

99919234750
99919234750
6PK875

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92810557104
Product Information
Product Information
Camshaft idler roller.
porsche

Fits:
Porsche 928 1986-95
M28.41/50

Click 'Zoom in' for large parts diagram.
Diagram Ref No 10.

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92810557104
92810557104

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92810557104/1
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Camshaft Idler Roller.
The OE Match Camshaft Idler Roller  is a high-quality replacement timing belt guide roller designed to support and direct the camshaft timing belt within the engine timing system. As a critical component of the belt drive assembly, the idler roller helps maintain correct belt alignment, reduces vibration and ensures precise synchronisation between the crankshaft and camshaft.

Fits:
  • Porsche 928S4 5.0L 1987-92
  • Porsche 928GT 5.0L 1989-91
  • Porsche 928GTS 5.4L 1992-95
  
Diagram Ref No 10

Manufactured to OE specifications for fit, performance and durability, this camshaft idler roller is engineered to withstand continuous operation, high rotational speeds and demanding engine conditions. It is an essential service item during timing belt replacement and preventative maintenance, helping to preserve the reliability and accuracy of the engine timing system.  

What This Product Does:
  • Guides and supports the camshaft timing belt.
  • Maintains correct timing belt alignment and routing.
  • Helps reduce belt vibration and movement.
  • Promotes even belt wear and consistent operation.
  • Supports accurate synchronisation between crankshaft and camshaft.
  • Contributes to reliable engine timing and performance.

Symptoms Of Wear Or Failure:
  • Chirping, squealing or grinding noises from the timing belt area.
  • Excessive timing belt vibration.
  • Rough or noisy bearing operation.
  • Visible wear or damage to the roller surface.
  • Timing belt misalignment.
  • Uneven or accelerated timing belt wear.
  • Bearing looseness or excessive play.
  • Increased risk of timing belt failure.

Why Replacement Matters:

  • The camshaft idler roller operates continuously while the engine is running and is subjected to constant rotational forces, heat and bearing loads. Over time, bearing wear, loss of lubrication and material fatigue can reduce the roller's effectiveness and reliability.
  • A failing idler roller can negatively affect timing belt tracking and alignment, causing premature belt wear and placing additional stress on surrounding timing components. In severe cases, bearing seizure or roller failure may result in timing belt damage or loss of engine timing, potentially leading to costly engine repairs.



Related reference numbers
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92810557104
92810557104

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92810551212
Product Information
Product Information
Camshaft tensioner roller.

porsche

Fits:
Porsche 928 S2 / S4 / GT / GTS 1983-95

Click 'Zoom in' for large parts diagram.
Diagram ref no 9.

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

92810551212
92810551212
04442

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92810551212/1
Product Information
Product Information
Camshaft tensioner roller
This OE Match camshaft tensioner roller is a replacement timing belt / camshaft drive roller for Porsche 928 models from 1983 to 1995. It is designed to match the original-style fitment and function, helping maintain correct belt guidance and tension within the camshaft timing system.

Fits:
Porsche 928 S2 / S4 / GT / GTS 1983 - 1995

Diagram ref no 9.

The camshaft tensioner roller supports and guides the timing belt as it runs through the engine timing system. It works with the belt tensioning assembly to help keep the belt correctly aligned and tensioned, ensuring accurate camshaft timing and reliable valve train operation.

Functions
•  Supports and guides the camshaft timing belt
•  Helps maintain correct timing belt alignment
•  Works with the tensioning system to support proper belt tension
•  Helps ensure accurate camshaft timing
•  Reduces the risk of belt tracking issues or timing instability
•  Replaces worn, noisy, seized, or damaged original rollers
•  OE Match replacement for timing belt service and engine repair.

Why Replace This Part?
Camshaft tensioner rollers are exposed to constant belt load, heat, vibration, and high-speed rotation. Over time, the bearing can wear, become noisy, seize, develop play, or cause uneven belt tracking. A faulty roller can lead to timing belt noise, belt wear, incorrect tension, or serious engine timing problems. Replacing the roller during timing belt service helps protect the timing system and supports long-term engine reliability.

When to Replace This Part
•   The timing belt system is being serviced
•   The roller is noisy, rough, seized, loose, or worn
•   Bearing play is found during inspection
•   Timing belt wear or tracking issues are present
•   The belt tensioner or related timing components are being replaced
•   The engine has timing belt noise from the front cover area
•   Preventative replacement is being carried out during major service.

Where it fits on the car
This camshaft tensioner roller fits within the engine timing belt / camshaft drive system on Porsche 928 models. It is installed in the timing belt path and supports correct belt tension and routing according to the factory engine layout.

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

92810551212
92810551212

The product you are viewing cross references to these numbers
Special Order item
99919228650
Product Information
Product Information
Power Steering Belt.

porsche

Fits:
Porsche 928 1985-95

Fits cars with power steering.

Click picture for large parts diagram.
Diagram Ref No 20.

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

99919228650
99919228650

The product you are viewing cross references to these numbers
99919228650/1
Product Information
Product Information
Power Steering Belt
This Power Steering Belt is an OE Match V-belt drive belt designed for Porsche 928 models equipped with power steering. It transfers power from the engine to the power steering pump.

Fits:
Porsche 928 1985 - 1995
for cars with power steering

Diagram ref no 20

The belt transmits rotational force from the engine to the power steering pump, enabling hydraulic pressure that assists steering. This reduces steering effort and improves control, especially at low speeds. Without a functioning belt, the power steering system will not operate correctly.

Function
Drives the power steering pump via crankshaft pulley
 Maintains hydraulic pressure for assisted steering
 Ensures smooth and responsive steering operation
 Provides reliable power transmission under load

Over time, drive belts wear, stretch, or crack due to heat and continuous use. A worn belt can slip, reduce steering assistance, or fail completely -resulting in heavy steering and potential loss of control. Replacing the belt ensures consistent power delivery to the steering system and prevents unexpected failure.

When to replace
  Cracked, frayed, or glazed belt surface
  Squealing noise from engine bay
  Reduced or inconsistent power steering assistance
  Visible belt slack or wear
  During routine service or preventative maintenance

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

99919228650
99919228650
520131000

The product you are viewing cross references to these numbers
99919228650/2
Product Information
Product Information
Power steering belt.
Width: 13 mm | Length: 1000 mm

dayco

Fits:
Porsche 928 1985-95
Fits cars with power steering.


Click 'Zoom in' for large parts diagram.
Diagram Ref No 20.

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

99919228650
99919228650
13A1000C

The product you are viewing cross references to these numbers
Special Order item
92810515750
Product Information
Product Information
Timing cam belt RD Tooth.
Cam belt 219 Round Tooth.

porsche

Fits:
Porsche 928 S2/S4/GT/GTS 1983-96

Click 'Zoom in' for large parts diagram.
Diagram Ref No 1.

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

92810515750
92810515750

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DISPLAYING 1 to 16 (of 18 products)
1 2
About Belts All Types

Belts – all types for alternator, fan, power steering and more

At Design911, we supply a wide range of engine and accessory drive belts for Porsche models, covering alternator, cooling fan, power steering and other auxiliary systems, plus related tensioners and pulleys. Whether you are carrying out routine maintenance or refreshing a higher‑mileage engine bay, you can choose from Genuine-style and carefully selected aftermarket options to suit how you use your Porsche.

Why do Porsche belts matter?

Belts are critical to how reliably your Porsche runs from day to day. They transfer drive from the crankshaft to key ancillaries such as the alternator, power steering pump and cooling fan, and in some applications form part of the engine’s timing system. Over time, heat, mileage, contamination and simple ageing can cause cracking, glazing, stretch or noise, while bearings in tensioners and idlers can wear. Replacing tired belts and related components with correctly specified parts helps keep your Porsche dependable, avoids inconvenience from belt slip or failure and supports the long‑term health of driven accessories.

  • Keep your Porsche running smoothly by maintaining drive to essential ancillaries
  • Help protect engine and charging systems where correct belt drive is required
  • Reduce niggles such as squealing, chirping, belt dust or visible cracking
  • Support long‑term enjoyment, pride of ownership and potential resale value with evidence of proper maintenance

Common options & kits

Individual replacement parts

Specific belts, tensioners, idlers or pulleys to address a particular drive run without changing everything at once. This is ideal when you are solving a localised issue or following a service schedule item on a particular belt.

  • Ideal for targeted maintenance or repairs on a single belt circuit
  • Lets you replace only what is required at a given service
  • Helps keep initial outlay under control while still using quality components

Matched sets or pairs

Belts and related parts supplied together so both sides of a system, or closely linked items, are renewed at the same time. This is a sensible approach where access is involved or where you want consistent age and condition across the drive.

  • Consistent behaviour and wear characteristics across the drive system
  • Helps avoid mixing very old and brand‑new parts on the same run
  • Well suited to scheduled maintenance or preparation ahead of long trips

Complete kits

Grouped parts designed to refresh a whole belt system in one go, for example an auxiliary drive kit including belt, tensioner and idlers. These are particularly useful during engine rebuilds or when you want peace of mind that all related items have been changed together.

  • Everything specified for a given belt run in a single matched package
  • Saves time compared with sourcing each component individually
  • Ideal when overhauling or restoring your Porsche’s engine bay

Brands available in this category

For this category we stock a wide choice of trusted brands for Porsche models. You can also browse and filter by brand on this page to focus on your preferred manufacturers.

Dayco

Dayco is a leader in the Original Equipment market and supplies many Porsche belt applications as OE or OE‑equivalent parts. Their belts are engineered to closely follow original dimensions and construction, making them a strong choice for routine servicing, higher‑mileage refreshes and rebuild projects where you want Porsche‑specific fitment backed by a global belt specialist.

Gates

Gates develops automotive and heavy‑duty drive system components with a focus on robust construction and consistent running. For Porsche models this typically includes auxiliary drive belts, tensioners and idlers, offering dependable options when you are maintaining or refreshing driven systems used in everyday and demanding conditions.

Kits / package solutions

Design911 also offers curated kit solutions that bundle compatible parts for particular Porsche applications. These can simplify ordering, reduce the chance of missing small but important items, and help ensure the components you fit are intended to work together on your specific model and engine code.

Meyle

Meyle is known for practical replacement parts, often with “HD” variants aimed at durability. While widely associated with suspension and steering, Meyle components are chosen by many Porsche workshops as a value‑conscious alternative where a robust everyday solution is required.

OE Match

OE Match focuses on parts designed to mirror original equipment specification at a sensible cost. For belt‑related components this makes OE Match a useful option when you want OEM‑equivalent fit and function while keeping ongoing running costs under control on regularly used Porsche models.

When should you review or replace your Porsche belts?

Checking belts and related components regularly helps you spot wear, damage or age‑related deterioration before it affects refinement or leads to more extensive repairs. On a Porsche, this is especially relevant as many belts are exposed to heat, fluid contamination and long service intervals.

  • Existing belts show cracking, frayed edges, glazing (shiny surfaces) or visible splitting
  • You notice squealing, chirping, belt dust or signs of slip, particularly on start‑up or under load
  • Charging, cooling or power steering performance feels inconsistent due to possible belt issues
  • You are already replacing items such as water pump, alternator or tensioner and want fresh belts at the same time
  • The belts are oil or coolant contaminated, or have been in service for an extended interval

If any of these apply, it is a good time to review the belts on your Porsche and replace anything that is past its best so your car stays dependable and enjoyable to drive.

Explore belts with Design911

Browse belts of all types for Porsche at Design911 — from individual auxiliary belts and tensioners to complete drive kits — and find options to suit routine maintenance, preventative refreshes and full engine projects across a wide range of Porsche models.

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