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Porsche > 911 & 912 (1965-1989) > 911 1984-1986 3.2L > Service Parts >

Belts All Types

Belts All Types

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DISPLAYING 1 to 9 (of 9 products)
Air conditioning belt. Porsche 911 1984-89 - 99919225450, 1118005200, 025260849B
2
Air conditioning belt. Porsche 911 1984-89
Special Order item
99919225450
Product Information
Product Information
Air Conditioning belt for factory York compressor AVP13x1155La.



Fits:
Porsche 911 Carrera 1984-1989

Click 'Zoom in' for large parts diagram.
Diagram ref no 23

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Related, superseded, cross reference or alternative numbers for comparison.

99919225450
99919225450
1118005200
025260849B

The product you are viewing cross references to these numbers
Air conditioning belt. Porsche 911 1984-89 - 99919225450, 025260849B - 1118005200
3
Air conditioning belt. Porsche 911 1984-89
99919225450/2
Product Information
Product Information
Air Conditioning Belt For Factory York Compressor AVP13x1155La.
Maintain reliable operation of your Porsche's air conditioning system with this OE Match Air Conditioning Belt for Factory York Compressor (AVP13x1155La). Produced to OE-style specifications, this drive belt is engineered specifically for Porsche models equipped with the factory-fitted York air conditioning compressor, providing the correct length and profile for dependable power transmission. Manufactured from high-quality, reinforced rubber compounds with high-strength tensile cords, it offers excellent resistance to heat, wear, and stretching, ensuring reliable performance for maintenance, repairs, and restoration projects.

Fits:
  • Porsche 911 1984-1986 3.2L
  • Porsche 911 1987-1989 3.2L G50  

Diagram Ref No 23

The air conditioning belt transfers engine power to the factory York compressor, enabling efficient operation of the air conditioning system. Over time, continual heat cycles, age, and normal use can cause the belt to harden, crack, glaze, or stretch, reducing drive efficiency and increasing the risk of belt slip or failure. Replacing a worn belt restores dependable compressor operation and helps maintain effective air conditioning performance, making this OE Match component an ideal choice for Porsche maintenance, repairs, and restoration projects.  

What This Product Does:

  • Transfers engine power to the factory York air conditioning compressor.
  • Ensures reliable compressor operation.
  • Maintains correct belt tension and drive efficiency.
  • Helps provide consistent air conditioning performance.
  • Reduces the risk of belt slip and drive loss.
  • Replaces worn, stretched, cracked, or glazed drive belts.
  • Provides an OE-style fit for straightforward installation.

Symptoms Of Wear Or Failure:
  • Cracked, frayed, or glazed belt surfaces.
  • Belt squeal during start-up or compressor engagement.
  • Air conditioning operating intermittently or inefficiently.
  • Belt slipping or poor belt tension.Visible stretching or deterioration.
  • Rubber debris around the pulleys.Complete belt failure preventing compressor operation.

Why Replacement Matters:
  • The air conditioning belt is essential for transmitting engine power to the factory York compressor, allowing the air conditioning system to function efficiently. As the belt ages, it can lose tension, crack, or deteriorate, reducing compressor performance and increasing the risk of unexpected failure. A failed belt will prevent the compressor from operating and may also leave damaged belt material within the engine compartment.
  • Replacing a worn drive belt restores reliable compressor operation, maintains correct belt tension, and helps ensure consistent air conditioning performance while reducing the likelihood of roadside belt failure. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match Air Conditioning Belt for Factory York Compressor delivers reliable fit, performance, and durability for Porsche maintenance, repairs, and restoration projects.



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

99919225450
99919225450
025260849B

The product you are viewing cross references to these numbers
Air Pump Belt. Porsche 911 1978-89 - 90019200550, 520100975
3
Air Pump Belt. Porsche 911 1978-89
Special Order item
90019200550
Product Information
Product Information
Air Pump Belt - 9.5 x 975.



Fits:
Porsche 911 3.2L 1978-89

Click 'Zoom in' for large parts diagram.
Diagram Ref No 35.

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

90019200550
90019200550
520100975

The product you are viewing cross references to these numbers
Air pump belt. Porsche 911 3.2L 1978-89 - 90019200550, 520100975
3
Air pump belt. Porsche 911 3.2L 1978-89
90019200550/1
Product Information
Product Information

OE Match air pump belt for Porsche 911 applications from 1978–1989. This narrow V-belt has the supplied dimensions of 9.5 x 975 and is intended for the air injection pump drive.

Fits:
Porsche 911 3.2L 1978 - 1989

Diagram ref no 35

Diagram: 108-00, item 34 — 911 SC 1978–83
Diagram: 108-00, item 35 — 911 Carrera 930.26 1987-89
Diagram: 108-00, item 35 — 930.26 (AUS) (CH) (S) 1984–86


What This Product Does

The belt provides the mechanical drive to the air injection pump. It is an auxiliary drive component, rather than a belt used to control valve timing. Correct specification and adjustment are important when renewing it.


Functions

  • Transfers drive through the air pump pulley system.
  • Provides a replacement for an aged, damaged or slipping air pump belt.


Technical Details

  • Belt construction: narrow V-belt.
  • Supplied dimensions: 9.5 x 975.


Symptoms of Fault

  • Squealing during starting or changes in engine speed.
  • Cracks, splitting, frayed edges or a shiny belt surface.
  • Belt dust near the pulleys or visible signs of slipping.
  • Fluid contamination affecting the belt surface.


Why Replacement Matters

Age, heat and contamination can deteriorate a drive belt even when the car covers few miles. Renewing a worn belt addresses deterioration in the pump drive, but associated pulley condition, alignment and adjustment should also be checked. A replacement belt alone will not correct a damaged pulley or a binding pump.


FAQs

What should be checked before fitting?
Match the vehicle details and belt dimensions, then inspect the pulleys for damage, contamination and alignment.

Why might a replacement belt still squeal?
Incorrect adjustment, pulley misalignment or contamination may remain. Identify the cause rather than simply increasing belt tension.

Can excessive tension cause problems?
Yes. Use the adjustment procedure specified for the vehicle; overtightening can place unnecessary load on the driven components.



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

90019200550
90019200550
520100975

The product you are viewing cross references to these numbers
Alternator Belt Porsche 911 / 914 - 99919217650, 9991921765A
1
Alternator Belt Porsche 911 / 914
Special Order item
9991921765A
Product Information
Product Information
Alternator Belt, Narrow V-belt.
Belt size: 10 x 710



Fits:
Porsche 911 1965-73
Porsche 911 Turbo 1976 >>
Porsche 911 SC 1974-79 (Check Size of your Belt)
Porsche 911 SC 1980-83
Porsche 911 3.2L 1984-89
Porsche 914 1970-76

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

9991921765A
99919217650
9991921765A

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Alternator belt. Porsche 911 / 914 - 99919217650, 9991921765A, 520100715 - 1118007500
1
Alternator belt. Porsche 911 / 914
9991921765A/1
Product Information
Product Information
Alternator belt, Narrow V-belt.
Belt size: 10 x 713 mm
The V-belt runs between the crankshaft pulley and the alternator/fan pulley. It’s the primary mechanical link that spins the alternator to charge the battery and, on air-cooled 911s and 914-6 models, turns the engine cooling fan.

Fits:
Porsche 911 1965 - 1973
Porsche 911 Turbo 1976 >>
Porsche 911 SC 1974 - 1979 (Check Size of your Belt)
Porsche 911 SC 1980 - 1983
Porsche 911 3.2L 1984 - 1989
Porsche 914 1970 - 1976

Please note: Always confirm against the belt size currently fitted and pulley setup before ordering.

Why Replacement Matters - With age and mileage, belts:
• Crack, glaze, or harden, reducing grip
• Stretch, making correct tension impossible
• Begin to slip, causing charging issues and, on air-cooled engines, reduced cooling fan speed

A slipping or failing belt can lead to battery discharge, warning lights, overheating, or being stranded. Fitting a fresh belt restores reliable alternator and fan drive, protecting both the engine and electrical system.

When to Replace - Consider replacing the alternator belt if:
•  You see cracks, fraying, glazing, or missing chunks in the belt rubber
•  The belt squeals on startup or under load
•  The belt has stretched and can’t be tensioned correctly
•  You’re doing routine service on a classic 911 / 914-6 or preparing for a long trip
•  The car is undergoing engine-out work or restoration

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

9991921765A
99919217650
9991921765A
520100715

The product you are viewing cross references to these numbers
Alternator Belt. Porsche 911 80-89 - 9991923135A
1
Alternator Belt. Porsche 911 80-89
Special Order item
9991923135A
Product Information
Product Information
Alternator Belt. Narrow V-Belt 9.5 x 695.



Belt size: 9.5 x 695

Fits:
Porsche 911 SC 1980-83
Porsche 911 1984-89

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

9991923135A
9991923135A

The product you are viewing cross references to these numbers
DISTRIBUTOR DRIVE BELT - 93060213400
1
DISTRIBUTOR DRIVE BELT
93060213400/1
Product Information
Product Information
Distributor Drive Belt.
Restore reliable distributor drive operation and accurate ignition timing with this OE Match Distributor Drive Belt. Designed for compatible Porsche ignition applications, this belt forms part of the distributor drive mechanism and ensures that the associated distributor components rotate in the correct relationship to engine operation.


Fits:
Porsche 911 1978-89

The distributor plays a critical role in delivering ignition to the cylinders at precisely the right time. Where a drive belt is incorporated within the distributor assembly, the condition of that belt is essential to maintaining correct synchronisation. A worn, stretched, cracked or broken belt can disrupt distributor operation and lead to ignition timing problems, misfires or loss of correct ignition distribution.  

What This Product Does:

  • Forms part of the distributor's internal drive mechanism.
  • Transfers rotational movement between associated distributor components.
  • Maintains correct synchronisation within the distributor assembly.
  • Supports accurate ignition distribution to the engine cylinders.
  • Helps maintain correct ignition timing.
  • Supports smooth and consistent engine operation.
  • Helps prevent ignition irregularities caused by a deteriorated drive belt.
  • Replaces a cracked, stretched, hardened, worn or broken distributor belt.
  • Provides an OE-style replacement for compatible Porsche ignition systems.
  • Is suitable for preventative maintenance during distributor rebuilding or servicing.

Symptoms Of Wear Or Failure:
  • Engine misfires or irregular running.
  • Rough or unstable idle.
  • Reduced engine performance.
  • Hesitation during acceleration.
  • Poor throttle response.
  • Difficulty starting the engine.
  • Intermittent ignition problems.
  • Incorrect or unstable ignition timing.
  • Uneven ignition operation between cylinders.
  • Visible cracks or deterioration in the belt.
  • Missing or damaged belt teeth where applicable.
  • Belt stretching, looseness or excessive wear.
  • Hardened or brittle belt material.
  • A completely broken distributor drive belt.
  • Age-related deterioration discovered during distributor servicing.

Why Replacement Matters:
  • Correct ignition timing is fundamental to engine performance. The spark must occur at the appropriate point in the combustion cycle, and the distributor drive mechanism must remain correctly synchronised for this to happen consistently.
  • A worn or stretched distributor belt may introduce unwanted movement or incorrect synchronisation within the distributor. This can contribute to inconsistent ignition, rough running, reduced power and poor throttle response.
  • More significantly, a belt that breaks can interrupt the intended operation of the distributor assembly. Depending on the ignition-system configuration, this may result in serious misfiring or loss of correct ignition to affected cylinders.
  • Age is an important consideration with distributor drive belts. Rubber components can deteriorate even on vehicles covering relatively little mileage. Years of exposure to engine-bay temperatures can cause the belt material to harden, crack and lose flexibility, increasing the likelihood of failure.



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

93060213400
93060213400

The product you are viewing cross references to these numbers
V-Rib Belt Crank Pulley and Tensioner Kit Upgrade. Porsche 911 3.2 Carrera - 93010202808, 93010202810 - AMS9050244, AMS905024
3
V-Rib Belt Crank Pulley and Tensioner Kit Upgrade. Porsche 911 3.2 Carrera
AMS905024
Product Information
Product Information

V-Rib Belt Crank Pulley and Tensioner Upgrade  Kit by Adapt Motorsport replaces the original V-belt arrangement while retaining the standard fan drive ratio.

Fits:

  • Porsche 911 1984-1986 3.2L
  • Porsche 911 1987-1989 3.2L G50

What This Product Does

This conversion uses a multi-rib belt to transfer drive to the cooling fan and alternator. The eccentric-mounted idler pulley provides controlled tension adjustment and reduces belt whip, addressing limitations that can affect the original V-belt arrangement during fast engine-speed changes, hard driving or operation with a high-current alternator.

Functions

  • Transfers crankshaft rotation to the fan and alternator through a V-rib belt
  • Provides precise belt-tension adjustment through the eccentric idler pulley
  • Reduces belt whip during rapid changes in engine speed
  • Retains the original fan drive ratio
  • Provides pulley markings for base and cam timing work


Technical Details

  • Precision-machined from high-grade aluminium
  • Black anodised finish
  • Component strength validated using finite element analysis
  • Timing notches at 0, 5, 120 and 240 degrees
  • Standard kit includes the V-rib crank pulley, eccentric idler pulley kit, fan pulley and fan belt
  • Standard+Trigger kit adds a lightweight 36-1 crank trigger disc for a crankshaft position sensor used in EFI conversions


Symptoms Addressed

  • Original V-belt being displaced during rapid engine-speed changes
  • Belt slip when driving a high-current alternator
  • Accelerated belt wear caused by slipping
  • Excessive belt tension being used in an attempt to prevent slip
  • Loss of charging voltage or cooling-fan drive following belt displacement or failure


Why Replacement Matters

A displaced or slipping fan belt can interrupt alternator and cooling-fan operation. The V-rib design increases the available belt contact area, while the adjustable idler allows tension to be set without relying on excessive belt loading that may shorten alternator-bearing life.

Kit Options

  • Standard Kit: V-rib crank pulley without trigger disc, eccentric idler pulley assembly, fan pulley and fan belt.
  • Standard+Trigger Kit: All Standard Kit components plus a lightweight 36-1 trigger disc for EFI crankshaft-position sensing.

FAQs

  • Does this kit change the fan speed? No. The original fan drive ratio is retained.
  • Is it suitable for 2.7 or 3.0 engines? No. Adapt Motorsport states that the pulleys interfere with the 2.7 and 3.0 engine consoles.
  • What is the trigger option for? It adds a 36-1 crank trigger disc for a crankshaft position sensor when carrying out an EFI conversion.
  • Are timing marks included? Yes. The pulleys are marked at 0, 5, 120 and 240 degrees for base and cam timing settings.


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

AMS905024
93010202808
93010202810

The product you are viewing cross references to these numbers
DISPLAYING 1 to 9 (of 9 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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