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Porsche // 911 & 912 (1965-1989) // 911 1978-1983 3.0L / SC
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Drive belt tensioner. Porsche 958 Cayenne 3.6L / 970.2 Panamera 3.6L / 95B.1 Macan - 94810226175
94810226175/1
Vehicle Group
- Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
- Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
- Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
Information
Drive Belt Tensioner (Hydraulic Portion)
OE Match drive belt tensioner for Porsche Cayenne 3.6L, 970 Panamera 3.6L, and Macan models. This replacement tensioner helps maintain correct auxiliary drive belt tension, supporting reliable operation of engine-driven accessories.
Fits:
Porsche 958 Cayenne V6 3.6L 2010 - 2017
Porsche 970.2 Panamera V6 3.6L 2014 - 2016
Porsche 970.2 Panamera 4 V6 3.6L 2014 - 2016
Porsche 95B.1 Macan S Petrol 3.0L V6 2014 - 2018
Porsche 95B.1 Macan S Diesel 3.0L V6 2014 - 2018
Porsche 95B.1 Macan GTS Petrol 3.0L V6 2014 - 2018
Porsche 95B.1 Macan Turbo 3.6L V6 2014 - 2018
Diagram ref no 3
The drive belt tensioner keeps the auxiliary belt under the correct tension as it drives engine accessories such as the alternator, water pump, power steering pump, and air conditioning compressor, depending on model and engine layout. Correct belt tension helps prevent belt slip, noise, vibration, and premature belt wear.
Functions
• Replaces the drive belt tensioner
• Maintains correct auxiliary belt tension
• Helps keep the belt aligned and stable
• Supports smooth operation of engine-driven accessories
• Helps reduce belt squeal, vibration, and uneven belt wear
• Suitable for drive belt, pulley, or accessory drive service
• OE Match replacement for Porsche belt drive repair.
Why Replace This Part?
Drive belt tensioners are exposed to heat, vibration, spring load, bearing wear, and constant belt movement. A worn or failing tensioner may cause belt squeal, poor belt tracking, accessory drive faults, rattling, weak tension, or premature belt failure. Replacing the tensioner helps restore stable belt operation and supports reliable accessory drive performance.
When to Replace This Part
• The auxiliary drive belt is being replaced
• Belt squeal, vibration, or poor tracking is present
• The tensioner is noisy, weak, loose, seized, or damaged
• Belt tension is incorrect or unstable
• Pulley or tensioner bearing wear is detected
• Accessory drive faults are being investigated
• Preventative replacement is required during major engine service
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94810226175
The product you are viewing cross references to these numbers
OE Match drive belt tensioner for Porsche Cayenne 3.6L, 970 Panamera 3.6L, and Macan models. This replacement tensioner helps maintain correct auxiliary drive belt tension, supporting reliable operation of engine-driven accessories.
Fits:
Porsche 958 Cayenne V6 3.6L 2010 - 2017
Porsche 970.2 Panamera V6 3.6L 2014 - 2016
Porsche 970.2 Panamera 4 V6 3.6L 2014 - 2016
Porsche 95B.1 Macan S Petrol 3.0L V6 2014 - 2018
Porsche 95B.1 Macan S Diesel 3.0L V6 2014 - 2018
Porsche 95B.1 Macan GTS Petrol 3.0L V6 2014 - 2018
Porsche 95B.1 Macan Turbo 3.6L V6 2014 - 2018
Diagram ref no 3
The drive belt tensioner keeps the auxiliary belt under the correct tension as it drives engine accessories such as the alternator, water pump, power steering pump, and air conditioning compressor, depending on model and engine layout. Correct belt tension helps prevent belt slip, noise, vibration, and premature belt wear.
Functions
• Replaces the drive belt tensioner
• Maintains correct auxiliary belt tension
• Helps keep the belt aligned and stable
• Supports smooth operation of engine-driven accessories
• Helps reduce belt squeal, vibration, and uneven belt wear
• Suitable for drive belt, pulley, or accessory drive service
• OE Match replacement for Porsche belt drive repair.
Why Replace This Part?
Drive belt tensioners are exposed to heat, vibration, spring load, bearing wear, and constant belt movement. A worn or failing tensioner may cause belt squeal, poor belt tracking, accessory drive faults, rattling, weak tension, or premature belt failure. Replacing the tensioner helps restore stable belt operation and supports reliable accessory drive performance.
When to Replace This Part
• The auxiliary drive belt is being replaced
• Belt squeal, vibration, or poor tracking is present
• The tensioner is noisy, weak, loose, seized, or damaged
• Belt tension is incorrect or unstable
• Pulley or tensioner bearing wear is detected
• Accessory drive faults are being investigated
• Preventative replacement is required during major engine service
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94810226175
94810226175
The product you are viewing cross references to these numbers
Price: £58.75
In stock
Related products
Vehicle Group
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
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
The product you are viewing cross references to these numbers
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
Price: £13.85
In stock
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
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
The product you are viewing cross references to these numbers
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
The product you are viewing cross references to these numbers
Price: £13.85
In stock
Vehicle Group
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Information
Alternator belt, Belt size: 9.5 x 725.
The Genuine Porsche 99919209750 alternator belt is an OE V-belt for selected Porsche 911 1974–1979 models. It drives the alternator and cooling fan, helping maintain battery charging and essential air-cooled engine cooling. Ideal for routine servicing or replacing a cracked, slipping, noisy or worn original belt.
Fits:
Porsche 911 Turbo/SC 1974 - 1979 (Please choose by size)
Diagram ref no 12
This belt is used on selected classic Porsche 911 models and fits the alternator / cooling fan pulley system.
What This Part Does / Functions
• Drives the alternator from the engine pulley system
• Helps keep the battery charged while the engine is running
• Drives the engine cooling fan on air-cooled Porsche 911 models
• Supports correct engine cooling airflow
• Helps maintain stable electrical system performance
• Provides correct OE Porsche belt fitment for the listed pulley setup
• Replaces a worn, cracked, stretched, glazed or noisy belt
• Helps prevent belt slip, squeal and charging/cooling issues.
Why Replace This Part?
The alternator belt is a critical service item on air-cooled Porsche 911 models because it drives both the alternator and the cooling fan. Over time, the belt can crack, glaze, stretch, fray or lose grip on the pulleys. A worn or slipping belt can cause charging problems and may reduce cooling fan speed, which can lead to engine temperature concerns. Replacing the belt with a Genuine Porsche OE alternator belt helps restore correct belt drive, reliable battery charging and proper cooling fan operation.
When to Replace This Part
• If the belt is cracked, glazed, frayed or visibly worn
• If the belt squeals or slips during engine operation
• If the battery or charging warning light appears
• If the belt tension can no longer be set correctly
• During scheduled service or preventative maintenance
• When replacing alternator, fan pulley, shims or related belt-drive hardware
• If the belt has been contaminated by oil, fuel or debris
• When recommissioning a stored classic Porsche 911.
Where It Fits on the Car
This belt fits on the rear engine alternator / cooling fan pulley system. It runs between the crankshaft pulley and the fan/alternator pulley assembly, driving the alternator and cooling fan.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919209750
The product you are viewing cross references to these numbers
The Genuine Porsche 99919209750 alternator belt is an OE V-belt for selected Porsche 911 1974–1979 models. It drives the alternator and cooling fan, helping maintain battery charging and essential air-cooled engine cooling. Ideal for routine servicing or replacing a cracked, slipping, noisy or worn original belt.
Fits:
Porsche 911 Turbo/SC 1974 - 1979 (Please choose by size)
Diagram ref no 12
This belt is used on selected classic Porsche 911 models and fits the alternator / cooling fan pulley system.
What This Part Does / Functions
• Drives the alternator from the engine pulley system
• Helps keep the battery charged while the engine is running
• Drives the engine cooling fan on air-cooled Porsche 911 models
• Supports correct engine cooling airflow
• Helps maintain stable electrical system performance
• Provides correct OE Porsche belt fitment for the listed pulley setup
• Replaces a worn, cracked, stretched, glazed or noisy belt
• Helps prevent belt slip, squeal and charging/cooling issues.
Why Replace This Part?
The alternator belt is a critical service item on air-cooled Porsche 911 models because it drives both the alternator and the cooling fan. Over time, the belt can crack, glaze, stretch, fray or lose grip on the pulleys. A worn or slipping belt can cause charging problems and may reduce cooling fan speed, which can lead to engine temperature concerns. Replacing the belt with a Genuine Porsche OE alternator belt helps restore correct belt drive, reliable battery charging and proper cooling fan operation.
When to Replace This Part
• If the belt is cracked, glazed, frayed or visibly worn
• If the belt squeals or slips during engine operation
• If the battery or charging warning light appears
• If the belt tension can no longer be set correctly
• During scheduled service or preventative maintenance
• When replacing alternator, fan pulley, shims or related belt-drive hardware
• If the belt has been contaminated by oil, fuel or debris
• When recommissioning a stored classic Porsche 911.
Where It Fits on the Car
This belt fits on the rear engine alternator / cooling fan pulley system. It runs between the crankshaft pulley and the fan/alternator pulley assembly, driving the alternator and cooling fan.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919209750
99919209750
The product you are viewing cross references to these numbers
Price: £13.20
In stock
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
Information
Air con belt.
Fits:
Porsche 911 1969-73
Porsche 911SC 1974-83
Porsche 911 Turbo 1975-77
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90019202750
The product you are viewing cross references to these numbers
Fits:
Porsche 911 1969-73
Porsche 911SC 1974-83
Porsche 911 Turbo 1975-77
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90019202750
90019202750
90019201350
The product you are viewing cross references to these numbers
Price: £17.53
In stock