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Belts All Types

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DISPLAYING 1 to 5 (of 5 products)
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99611501576
Product Information
Product Information
Drive belt deflection roller.

There are 2 on the vehicle. Please note: Shown price is for each.

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Related, superseded, cross reference or alternative numbers for comparison.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
99611501576
99611501575
99611501574
99611501571

The product you are viewing cross references to these numbers
99611501576/1
Product Information
Product Information
Drive Belt Deflection Roller.

The OE MATCH Drive Belt Deflection Roller is a high-quality replacement auxiliary drive belt component designed for Porsche 996 Turbo, 997 Turbo and GT3 models. Manufactured to provide OE-style fitment and reliable operation, this deflection roller helps guide the engine's auxiliary drive belt along its designated path, ensuring smooth and consistent operation of the belt-driven accessories.

Fits:
  • Porsche 996 Turbo
  • Porsche 997 Turbo
  • Porsche 996 GT3 1999-05
  • Porsche 997 GT3 2007-11

Diagram Ref No 8


Also known as an idler pulley or guide roller, this component forms part of the engine's auxiliary belt drive system. It works alongside the drive belt and tensioner assembly to maintain correct belt alignment and routing during engine operation.

The roller incorporates a rotating pulley and bearing assembly designed to accommodate continuous engine operation, vibration and changing rotational speeds.

Over time, the original roller bearings can deteriorate due to age, heat, contamination and prolonged use, potentially resulting in excessive noise, poor belt tracking or complete bearing failure.

Ideal for replacing worn, noisy, seized or damaged original rollers, the OE MATCH Drive Belt Deflection Roller provides a practical replacement solution for routine servicing, preventative maintenance and engine repairs.

What This Product Does:

The drive belt deflection roller guides the auxiliary drive belt around the engine's pulley system, helping maintain the correct belt routing and alignment.

Unlike the belt tensioner, which applies the necessary tension to the belt, the deflection roller primarily provides guidance and support to ensure the belt follows its intended path.

Its key functions include:

  • Drive Belt Guidance: Directs the auxiliary drive belt along the correct route around the engine's pulley system.
  • Belt Alignment: Helps maintain proper belt positioning and prevents unwanted lateral movement.
  • Smooth Belt Operation: The integrated bearing allows the pulley to rotate freely as the drive belt moves across its surface.
  • Auxiliary System Support: Contributes to reliable operation of the engine accessories driven by the auxiliary belt.
  • Reduced Belt Vibration: Helps maintain stable belt tracking and minimise unwanted movement during engine operation.
  • Reduced Operating Noise: A correctly functioning roller supports smooth, quiet belt movement.
  • Belt Wear Prevention: Proper alignment helps reduce uneven belt wear, edge damage and premature deterioration.
  • Consistent Belt Routing: Maintains the intended belt path as engine speed changes.
  • OE-Style Fitment: Provides a replacement for the original guide roller without modification to the specified mounting arrangement.

Symptoms Of Wear Or Failure:
Over time, continuous rotation, engine heat, vibration and contamination can cause the bearings and pulley surfaces of the drive belt deflection roller to deteriorate.

Common signs include:

  • Squealing or Chirping Noises: High-pitched noises from the auxiliary belt area may indicate worn bearings, poor belt alignment or excessive friction.
  • Grinding or Rumbling Sounds: A deteriorating pulley bearing may produce grinding, rumbling or growling noises while the engine is running.
  • Excessive Pulley Play: Side-to-side movement or looseness may indicate wear within the roller bearing.
  • Rough Pulley Rotation: A worn bearing may feel rough, notchy or resistant when the pulley is rotated by hand with the belt removed.
  • Seized or Sticking Roller: Bearing failure can prevent the pulley from rotating freely, potentially causing the drive belt to slide across a stationary surface.
  • Visible Pulley Wobble: A damaged bearing or mounting arrangement may cause the roller to rotate unevenly.
  • Uneven Drive Belt Wear: Incorrect tracking can cause excessive wear along the belt edges or running surface.
  • Cracked or Damaged Pulley Surface: Physical damage or deterioration may affect smooth belt movement.
  • Excessive Belt Vibration: An unstable pulley or incorrectly tensioned belt may produce visible belt movement during operation.
  • Burning Rubber Smell: A seized roller can generate friction and heat, potentially damaging the drive belt.
  • Drive Belt Slipping or Coming Off: Severe bearing failure or incorrect pulley alignment may cause the belt to move out of position.
  • Auxiliary Drive Failure: If the roller seizes or the belt breaks, belt-driven accessories may stop operating.

Why Replacement Matters:
  • Replacing a worn or damaged drive belt deflection roller is an important part of maintaining the reliability and correct operation of your Porsche's auxiliary drive belt system.
  • The auxiliary drive belt operates continuously while the engine is running, transferring rotational power to essential belt-driven components. The deflection roller plays a critical role in guiding this belt and maintaining its correct path around the engine.
  • As the roller bearing deteriorates, it may develop excessive play, resistance or noise. Continued operation with a worn roller can cause incorrect belt tracking, increased friction and premature belt wear.
  • If the bearing becomes severely damaged or seizes completely, the belt may overheat, shred or break, potentially causing the sudden loss of belt-driven accessory operation.
  • Depending on the engine configuration, auxiliary belt failure can affect important components such as the alternator and water pump. Loss of water pump operation may result in engine overheating, while alternator failure can lead to battery discharge and electrical system problems.
  • A failed roller may also damage surrounding pulleys, tensioners or other components within the auxiliary drive system, potentially increasing repair costs.
  • Installing a replacement OE MATCH deflection roller helps restore smooth pulley rotation, correct belt guidance and reliable auxiliary drive operation.
  • Replacing worn rollers during scheduled belt maintenance is particularly beneficial because it allows associated components to be inspected and renewed before a more serious failure occurs.
  • For high-performance Porsche Turbo and GT3 engines, maintaining the condition of the auxiliary drive system is especially important during demanding driving conditions and high engine speeds.
  • The OE MATCH Drive Belt Deflection Roller 99611501576/1 offers an OE-style replacement solution designed to support dependable belt operation, reduce unwanted noise and help protect the engine's auxiliary drive components.



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

99611501576
99611501576
99611501571
4149031003
34537
99611501574
99611501573

The product you are viewing cross references to these numbers
Special Order item
99611522172
Product Information
Product Information
Drive belt tensioner

Fits:
Porsche 996 Turbo 2001-05
Porsche 996 GT2 2001-05
Porsche 996 GT3 M96.76 / 79 2000-2005
Porsche 997.1 Turbo M97.70 2007-2009
Porsche 997.2 Turbo M97.70 3.6L 2010-2011
Porsche 997 GT2 RS 3.6L
Porsche 997 GT3 M97.76 3.6L / M97.74 3.8L / M97.77 4.0L

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

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

99611522172
99611522172
99611522171

The product you are viewing cross references to these numbers
Special Order item
99610215195
Product Information
Product Information
Drive belt.

Fits:
Porsche 996 GT3 1999-2005
Porsche 997 GT3 MKI 2006>>
Porsche 997 GT3 MKII 2009>>

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

99610215195
6PK2260
99610215193
99610215195

The product you are viewing cross references to these numbers
99610215195/1
Product Information
Product Information
Drive belt. Porsche WITH Air con 996 GT3 / 997 GT3

Fits:
Porsche 996 GT3 1999-2005
Porsche 997 GT3 MKI 2006>>
Porsche 997 GT3 MKII 2009>>

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

99610215195
6PK2260
050 006 2260
99610215195
99610215193

The product you are viewing cross references to these numbers
DISPLAYING 1 to 5 (of 5 products)
Also found on these pages
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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