Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Belts All Types
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13

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Related, superseded, cross reference or alternative numbers for comparison.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
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MKII GT2 RS 2011-13
The Genuine Porsche 99919237951 drive belt is an OE Poly-V / serpentine belt for selected Porsche 996 Turbo and 997 Turbo models with air conditioning. It drives the engine auxiliary components according to the A/C belt routing, helping maintain reliable charging, air-conditioning and accessory system operation. Ideal for routine service or replacing a cracked, noisy, slipping or worn original belt.
Fits:
Porsche 996 Turbo 2000-2005 M96.70 Engine
Porsche 996 GT2 M96.70 Engine
Porsche 997 Turbo 2007-2009 3.6L M97.70 Engine
Porsche 997 GT2 RS 2011 M97.70 Engine
Diagram ref no 9
This belt is specifically listed for Porsche 996 Turbo / 997 Turbo applications with air conditioning. It replaces earlier Porsche part number 99919237950.
What This Part Does / Functions
• Transfers drive from the engine pulley system to auxiliary components
• Supports operation of the alternator and other belt-driven accessories
• Works with the air-conditioning compressor drive layout on cars with A/C
• Helps maintain correct accessory belt routing and pulley engagement
• Supports reliable charging and auxiliary system operation
• Helps prevent belt slip, squeal and accessory-drive faults when correctly fitted
• Provides the correct OE Porsche belt profile, length and fitment
• Replaces a cracked, worn, stretched, glazed or noisy original belt.
Why Replace This Part?
The drive belt is a service wear item and is exposed to heat, tension, pulley contact and engine movement. Over time, it can crack, glaze, stretch, fray or lose grip on the pulleys. A worn belt may cause squealing, slipping, charging issues, air-conditioning faults or complete accessory-drive failure. Replacing it with a Genuine Porsche OE drive belt helps restore reliable accessory drive operation and ensures the correct belt specification is used for Turbo models with air conditioning.
When to Replace This Part
• f 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 belt tensioner, idler pulleys, alternator or A/C compressor
• If the belt has been contaminated by oil, coolant or debris
• If charging or air-conditioning 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. It routes around the relevant pulleys, tensioner and driven components according to the factory air-conditioning belt layout.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919237951
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MKII GT2 RS 2011-13
This OE Match drive belt is a replacement auxiliary engine belt for Porsche 996 Turbo and 997 Turbo models equipped with air conditioning. It is designed to match the original-style fitment and function. This replacement auxiliary belt helps drive engine accessories and supports reliable operation of the vehicle’s charging and auxiliary systems.
Fits:
Porsche 996 Turbo 2000-2005 M96.70 Engine
Porsche 996 GT2 M96.70 Engine
Porsche 997 Turbo 2007-2009 3.6L M97.70 Engine
Porsche 997 GT2 RS 2011 M97.70 Engine
Diagram ref no 9
The drive belt transfers rotational power from the engine pulley to the relevant auxiliary components. On vehicles with air conditioning, the correct belt specification is essential for proper pulley contact, belt tension, and reliable accessory drive operation.
Functions
• Replaces the auxiliary drive belt
• Suitable for cars with air conditioning
• Transfers drive from the engine pulley to auxiliary components
• Helps maintain correct belt tension and pulley contact
• Supports reliable charging and accessory system operation
• Replaces cracked, glazed, stretched, frayed, noisy, or slipping belts
• OE Match replacement for Porsche 996 Turbo and 997 Turbo engine service.
Why Replace This Part?
Drive belts wear over time due to heat, vibration, pulley contact, age, tension changes, and engine bay conditions. A worn belt can crack, glaze, stretch, fray, squeal, slip, or fail completely. If the belt fails, driven auxiliary systems may stop operating correctly, which can lead to warning lights, charging faults, accessory issues, or vehicle breakdown. Replacing the belt helps restore dependable auxiliary drive performance.
When to Replace This Part
• The drive belt is cracked, glazed, frayed, stretched, or worn
• Belt squeal, chirping, or slipping is present
• The belt does not track correctly on the pulleys
• The alternator, pulleys, tensioner, or related components are being serviced
• Charging or accessory drive faults are present
• Preventative belt replacement is being carried out during scheduled maintenance
• The vehicle is undergoing Porsche 996 Turbo or 997 Turbo engine service.
Where it fits on the car
This drive belt fits within the engine auxiliary belt drive system on Porsche 996 Turbo and 997 Turbo models with air conditioning. It runs around the relevant pulleys according to the factory belt routing.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919237951
The product you are viewing cross references to these numbers
- Porsche 997 MKII GT2 RS 2011-13

Fits
Porsche 997.2 GT2 RS - 2011 to 2012
For cars with Option Code
M574 - No Air Conditioning
Click 'Zoom in' for large parts diagram.
Diagram ref no 9
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710215170
The product you are viewing cross references to these numbers
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.