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Porsche // Panamera 971 MK2 (2021-2023) // 971.2 Panamera Turbo S 4.0L V8 2021-23
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- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
Alternator Belt
OE Match replacement alternator belt for Porsche 964 turbo
models, manufactured in the correct 9.5 x 785mm size.
Fits:
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
Diagram Ref No 13A
The alternator belt is an important service component, transferring engine rotation to the alternator and helping maintain the vehicle's electrical charging system. A worn, cracked or incorrectly tensioned belt can slip or fail, resulting in reduced alternator performance and potentially leaving the vehicle without adequate battery charging.
What Does the Alternator Belt Do?
The alternator belt mechanically drives the alternator from the engine. As the engine runs, the belt transfers rotation to the alternator pulley, allowing the alternator to generate electricity and maintain battery charge.
Correct belt condition and tension are therefore essential for reliable operation of the charging system.
Why Do Alternator Belts Fail?
Drive belts are exposed to continuous movement, heat and changing engine speeds. The rubber material gradually deteriorates with age even on vehicles covering relatively low mileage.
Common causes of failure include:
Age-related rubber deterioration Cracking or splitting Incorrect belt tension Pulley misalignment Oil contamination Excessive heat Worn or damaged pulleys Long periods of vehicle storageWhen Should It Be Replaced?
The alternator belt should be replaced if inspection reveals cracking, fraying, glazing, hardening or other deterioration.
Other warning signs can include:
Squealing or slipping noises Charging system problems Visible belt damage Difficulty maintaining correct belt tension Excessive belt movementOn classic Porsche models, periodic visual inspection is advisable regardless of mileage because deterioration can occur simply through age.
Checks During Replacement
When fitting a new alternator belt, also inspect:
Alternator pulley Crankshaft pulley Belt running surfaces Belt alignment Correct belt tension Associated mounting hardware Signs of oil contaminationCorrect tension is important: an excessively loose belt can slip, while excessive tension can place unnecessary load on bearings and associated components.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919234550
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- Porsche 9YA Cayenne Turbo V8 4.0L Petrol (550Hp) 2020-23
- Porsche 9YA Cayenne Coupe Turbo V8 4.0L Petrol (550Hp) 2019-23
- Porsche 971.1 Panamera Turbo V8 4.0L 4WD (550 Hp) 2017-20
- Porsche 971.1 Panamera Turbo V8 4.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera Turbo 4.0L Twin-Turbo V8 Sport Turismo 2017-20
- Porsche 971.2 Panamera GTS 4.0L V8 2021-23
- Porsche 971.2 Panamera GTS Sport Turismo 4.0L V8 2021-23
- Porsche 971.2 Panamera Turbo S 4.0L V8 2021-23
- Porsche 971.2 Panamera Turbo S Sport Turismo 4.0L V8 2021-23
Number of ribs 4
Width 14 mm
Length 1096 mm
Fits
Porsche E3 Cayenne V8 turbo
Porsche 971.1 Panamera V8 turbo
Porsche 971.2 Panamera GTS V8 turbo
Porsche 971.2 Panamera turbo S
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A726084900
The product you are viewing cross references to these numbers
- Porsche 9YA Cayenne GTS V8 4.0L Petrol (460Hp) 2020-23
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- Porsche 9YA Cayenne Turbo V8 4.0L Petrol (550Hp) 2020-23
- Porsche 9YA Cayenne Coupe Turbo V8 4.0L Petrol (550Hp) 2019-23
- Porsche 9YA Cayenne Coupe Turbo GT V8 4.0L (640Hp) 2021-23
- Porsche 971.1 Panamera Turbo V8 4.0L 4WD (550 Hp) 2017-20
- Porsche 971.1 Panamera Turbo V8 4.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera Turbo 4.0L Twin-Turbo V8 Sport Turismo 2017-20
- Porsche 971.2 Panamera GTS 4.0L V8 2021-23
- Porsche 971.2 Panamera GTS Sport Turismo 4.0L V8 2021-23
- Porsche 971.2 Panamera Turbo S 4.0L V8 2021-23
- Porsche 971.2 Panamera Turbo S Sport Turismo 4.0L V8 2021-23
Fits:
Porsche 971.1 Panamera Turbo 4.0L V8 2017-21*
Porsche 971.1 Panamera GTS 4.0L V8 2019-21
--
Porsche 971.2 Panamera Turbo S 4.0L V8 2021-24
Porsche 971.2 Panamera GTS 4.0L V8 2021-24
--
Porsche 9YA Cayenne GTS 4.0L V8 2020-23
Porsche 9YA Cayenne Turbo 4.0L V8 2018-23
Porsche 9YA Cayenne Turbo GT 4.0L V8 2021-23
--
Porsche 9YA.2 Cayenne GTS 4.0L V8 2023>>
Porsche 9YA.2 Cayenne Turbo GT 4.0L V8 2023>>
*Please be advised, this belt is only for 971 Panamera Turbo models produced on/after 15.02.18. Cars prior to this use different tensioners which are not compatible with this belt. The belt for the old-style tensioner can no longer be purchased, meaning you will need to change both tensioners and replace the belt with the new variant. The part numbers are PAB26093800 and 9A790313301. If you are in any doubt, please do not hesitate to contact us with your vehicle's VIN number.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAB90313700
The product you are viewing cross references to these numbers
- Porsche 9YA Cayenne Turbo V8 4.0L Petrol (550Hp) 2020-23
- Porsche 9YA Cayenne Coupe Turbo V8 4.0L Petrol (550Hp) 2019-23
- Porsche 971.1 Panamera Turbo V8 4.0L 4WD (550 Hp) 2017-20
- Porsche 971.1 Panamera Turbo V8 4.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera Turbo 4.0L Twin-Turbo V8 Sport Turismo 2017-20
- Porsche 971.2 Panamera GTS 4.0L V8 2021-23
- Porsche 971.2 Panamera GTS Sport Turismo 4.0L V8 2021-23
- Porsche 971.2 Panamera Turbo S 4.0L V8 2021-23
- Porsche 971.2 Panamera Turbo S Sport Turismo 4.0L V8 2021-23
Number of ribs 4
Width 14 mm
Length 1090 mm
Fits
Porsche E3 Cayenne V8 turbo
Porsche 971.1 Panamera V8 turbo
Porsche 971.2 Panamera GTS V8 turbo
Porsche 971.2 Panamera turbo S
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A726084900
The product you are viewing cross references to these numbers