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Original Porsche Part Genuine Porsche part 99919209850
Code: 99919209850
Genuine Porsche part
Original Porsche Part
Additional information:
• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.
Before purchasing thoroughly check part to confirm compatibility.
• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.
Before purchasing thoroughly check part to confirm compatibility.
Vehicle Group
- We are unable to provide fitting details for this product at this time. Please contact us for further information.
Price: £10.90
Orderable - 14 - 28 Days
Related products
99919209750
Product Information
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
Product 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
99919209750
The product you are viewing cross references to these numbers
Vehicle Group
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)
Price: £13.20
In Stock - 24 Hour Dispatch
Shop Securely
12 Month Warranty
Worldwide Delivery
99919203040/1
Product Information
The Gates injection pump belt is an OEM-quality toothed drive belt designed for Porsche 911 models equipped with the Mechanical Fuel Injection (MFI) system. Manufactured as a direct replacement for Porsche part number 99919203040, this precision-engineered belt synchronises the mechanical fuel injection pump with the engine, ensuring accurate fuel delivery and optimum engine performance.
Fits:
Porsche 911 1969 - 1977
Diagram ref no 21
A genuine Gates toothed injection pump drive belt, manufactured as a direct replacement for Porsche part number 99919203040 for MFI systems. Drives the mechanical fuel injection pump in precise synchronisation with the engine, ensuring accurate fuel metering, smooth engine operation, and consistent performance across the rev range.
Key Features & Benefits
• Genuine Gates OEM-quality drive belt
• Direct replacement for Porsche 99919203040
• Precision toothed belt for MFI systems
• High-strength reinforced construction
• Excellent resistance to heat, wear, and stretching
• Maintains accurate fuel injection pump timing
• Ideal for engine rebuilds, restoration projects, and routine maintenance
Why Replacing the Injection Pump Belt
Matters The mechanical fuel injection belt is essential for maintaining precise fuel delivery. As it ages, the belt can stretch, crack, or deteriorate, affecting injection timing and engine performance. Replacing it at the recommended interval helps preserve reliable operation and protects the mechanical fuel injection system.
When to Replace the Injection Pump Belt
• During engine rebuild or cylinder head overhaul
• During mechanical fuel injection (MFI) pump servicing
• If the belt shows cracks, fraying, or worn teeth
• If oil contamination is present
• If the service history is unknown
• As part of preventative maintenance on classic MFI-equipped Porsche engines
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919203040
The product you are viewing cross references to these numbers
Product Information
Injection pump beltThe Gates injection pump belt is an OEM-quality toothed drive belt designed for Porsche 911 models equipped with the Mechanical Fuel Injection (MFI) system. Manufactured as a direct replacement for Porsche part number 99919203040, this precision-engineered belt synchronises the mechanical fuel injection pump with the engine, ensuring accurate fuel delivery and optimum engine performance.
Fits:
Porsche 911 1969 - 1977
Diagram ref no 21
A genuine Gates toothed injection pump drive belt, manufactured as a direct replacement for Porsche part number 99919203040 for MFI systems. Drives the mechanical fuel injection pump in precise synchronisation with the engine, ensuring accurate fuel metering, smooth engine operation, and consistent performance across the rev range.
Key Features & Benefits
• Genuine Gates OEM-quality drive belt
• Direct replacement for Porsche 99919203040
• Precision toothed belt for MFI systems
• High-strength reinforced construction
• Excellent resistance to heat, wear, and stretching
• Maintains accurate fuel injection pump timing
• Ideal for engine rebuilds, restoration projects, and routine maintenance
Why Replacing the Injection Pump Belt
Matters The mechanical fuel injection belt is essential for maintaining precise fuel delivery. As it ages, the belt can stretch, crack, or deteriorate, affecting injection timing and engine performance. Replacing it at the recommended interval helps preserve reliable operation and protects the mechanical fuel injection system.
When to Replace the Injection Pump Belt
• During engine rebuild or cylinder head overhaul
• During mechanical fuel injection (MFI) pump servicing
• If the belt shows cracks, fraying, or worn teeth
• If oil contamination is present
• If the service history is unknown
• As part of preventative maintenance on classic MFI-equipped Porsche engines
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919203040
99919203040
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Price: £11.95
Due In 6 Days
Shop Securely
12 Month Warranty
Worldwide Delivery
99919200650
Product Information
Belt size: 9.5 x 825
Fits:
Porsche 912 1965-69
Porsche 356 1950-65
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919200650
The product you are viewing cross references to these numbers
Product Information
Alternator belt.Belt size: 9.5 x 825
Fits:
Porsche 912 1965-69
Porsche 356 1950-65
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919200650
99919200650
1218000400
0950362
54709305
6213MC
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Price: £13.85
In Stock - 24 Hour Dispatch
Shop Securely
12 Month Warranty
Worldwide Delivery
99919209750/1
Product Information
Width: 10 mm, Length: 725 mm
Fits:
Porsche 911 Turbo/SC 1974-79 (Please choose by size)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919209750
The product you are viewing cross references to these numbers
Product Information
Alternator belt. Width: 10 mm, Length: 725 mm
Fits:
Porsche 911 Turbo/SC 1974-79 (Please choose by size)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919209750
99919209750
052 010 0725
The product you are viewing cross references to these numbers
Vehicle Group
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)
Price: £5.00
In Stock - 3- 5 Days Dispatch
Shop Securely
12 Month Warranty
Worldwide Delivery
99919209550
Product Information
Fits:
Porsche 911 Turbo 3.0 1975-77
Click 'Zoom in' for large parts diagram.
Diagram ref no 59
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919209550
The product you are viewing cross references to these numbers
Product Information
Air injection pump toothed belt (80 tooth). Fits:
Porsche 911 Turbo 3.0 1975-77
Click 'Zoom in' for large parts diagram.
Diagram ref no 59
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919209550
99919209550
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 911 1975-1977 3.0L Turbo (930)
Price: £160.33
Orderable - 14 to 28 Days
Shop Securely
12 Month Warranty
Worldwide Delivery
99919200650/2
Product Information
Belt size: 9.5 x 825
Fits:
Porsche 912 1965-69
Porsche 356 1950-65
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919200650
The product you are viewing cross references to these numbers
Product Information
Alternator belt.Belt size: 9.5 x 825
Fits:
Porsche 912 1965-69
Porsche 356 1950-65
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919200650
99919200650
0950362
520100825
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Price: £3.95
Orderable - 11 to 23 Days
Shop Securely
12 Month Warranty
Worldwide Delivery
99919203040
Product Information
The Genuine Porsche 99919203040 injection pump belt is an OE toothed drive belt for the mechanical fuel injection pump on selected Porsche 911 1969–1977 models. It helps maintain correct injection pump timing, stable fuel delivery and original MFI engine performance. Ideal for routine service, fuel injection system restoration or replacing an aged, worn or unknown-history belt.
Fits:
Porsche 911 1969 - 1977
Diagram ref no 21
This belt is used on Porsche 911 models equipped with a mechanical fuel injection system, where it drives the injection pump from the engine drive system.
What This Part Does / Functions
• Drives the mechanical fuel injection pump
• Helps maintain correct injection pump timing
• Supports consistent fuel delivery to the engine
• Helps ensure smooth engine running and throttle response
• Transfers rotational drive accurately through the toothed belt profile
• Helps prevent injection timing issues caused by belt wear or slip
• Provides OE Porsche fitment for the original MFI pump drive system
• Replaces an aged, cracked, stretched or worn injection pump belt.
Why Replace This Part?
The injection pump belt is a critical service item on mechanical fuel injection engines. Over time, the belt can age, crack, stretch, wear or lose tooth definition. If the belt slips, wears excessively or fails, the injection pump may lose correct timing, which can cause poor running, misfiring, difficult starting or incorrect fuel delivery. Replacing it with a Genuine Porsche OE injection pump belt helps maintain accurate MFI pump operation and supports the original performance and drivability of the classic Porsche 911 engine.
When to Replace This Part
• During scheduled mechanical fuel injection system service
• If the belt is cracked, worn, frayed or visibly aged
• If injection pump timing is being reset or adjusted
• During engine rebuild, MFI pump service or fuel system restoration
• If the belt has been contaminated by oil, fuel or debris
• If the belt age or service history is unknown
• When recommissioning a stored classic Porsche 911
• When restoring the engine with correct OE Porsche service parts.
Where It Fits on the Car
This belt fits on the engine mechanical fuel injection system, driving the mechanical injection pump. It is installed in the MFI pump drive area and works with the injection pump pulley system to maintain correct pump timing.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919203040
The product you are viewing cross references to these numbers
Product Information
Injection pump beltThe Genuine Porsche 99919203040 injection pump belt is an OE toothed drive belt for the mechanical fuel injection pump on selected Porsche 911 1969–1977 models. It helps maintain correct injection pump timing, stable fuel delivery and original MFI engine performance. Ideal for routine service, fuel injection system restoration or replacing an aged, worn or unknown-history belt.
Fits:
Porsche 911 1969 - 1977
Diagram ref no 21
This belt is used on Porsche 911 models equipped with a mechanical fuel injection system, where it drives the injection pump from the engine drive system.
What This Part Does / Functions
• Drives the mechanical fuel injection pump
• Helps maintain correct injection pump timing
• Supports consistent fuel delivery to the engine
• Helps ensure smooth engine running and throttle response
• Transfers rotational drive accurately through the toothed belt profile
• Helps prevent injection timing issues caused by belt wear or slip
• Provides OE Porsche fitment for the original MFI pump drive system
• Replaces an aged, cracked, stretched or worn injection pump belt.
Why Replace This Part?
The injection pump belt is a critical service item on mechanical fuel injection engines. Over time, the belt can age, crack, stretch, wear or lose tooth definition. If the belt slips, wears excessively or fails, the injection pump may lose correct timing, which can cause poor running, misfiring, difficult starting or incorrect fuel delivery. Replacing it with a Genuine Porsche OE injection pump belt helps maintain accurate MFI pump operation and supports the original performance and drivability of the classic Porsche 911 engine.
When to Replace This Part
• During scheduled mechanical fuel injection system service
• If the belt is cracked, worn, frayed or visibly aged
• If injection pump timing is being reset or adjusted
• During engine rebuild, MFI pump service or fuel system restoration
• If the belt has been contaminated by oil, fuel or debris
• If the belt age or service history is unknown
• When recommissioning a stored classic Porsche 911
• When restoring the engine with correct OE Porsche service parts.
Where It Fits on the Car
This belt fits on the engine mechanical fuel injection system, driving the mechanical injection pump. It is installed in the MFI pump drive area and works with the injection pump pulley system to maintain correct pump timing.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919203040
99919203040
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Price: £33.45
In Stock - 24 Hour Dispatch
Shop Securely
12 Month Warranty
Worldwide Delivery
99919203040/2
Product Information
This OE Match injection pump belt is a replacement drive belt for the mechanical fuel injection system on Porsche 911 models from 1969 to 1977. It is designed to match the original-style fitment and function. This replacement belt helps drive the mechanical fuel injection pump, supporting correct fuel delivery and reliable engine running.
Fits:
Porsche 911 1969 - 1977
Diagram ref no 21
The injection pump belt transfers rotational drive to the fuel injection pump. This allows the pump to operate in sync with the engine and deliver fuel correctly. A good belt is essential for accurate fuel delivery, smooth running, and dependable engine performance on models using mechanical fuel injection.
Functions
• Replaces the injection pump drive belt
• Drives the mechanical fuel injection pump
• Supports correct fuel delivery and engine running
• Helps maintain injection pump timing and operation
• Replaces cracked, worn, stretched, frayed, or missing belts
• Suitable for fuel injection system service and preventative maintenance
• OE Match replacement for classic Porsche 911 engine service.
Why Replace This Part?
Injection pump belts wear over time due to heat, age, tension changes, pulley contact, vibration, and engine bay conditions. A worn belt can crack, stretch, fray, slip, or fail completely. If the belt fails, the injection pump may stop operating correctly, causing poor running, loss of fuel delivery, difficult starting, or engine stoppage. Replacing the belt helps maintain reliable mechanical fuel injection performance.
When to Replace This Part
• The injection pump belt is cracked, glazed, frayed, loose, or worn
• Fuel injection pump service or adjustment is being carried out
• Engine running is poor due to suspected injection pump drive issues
• The belt tension is incorrect or unstable
• The injection pump, pulleys, or related components are being serviced
• Preventative belt replacement is being carried out during scheduled maintenance
• The vehicle is undergoing Porsche 911 fuel injection or engine restoration.
Where it fits on the car
This belt fits within the mechanical fuel injection pump drive system on Porsche 911 models from 1969 to 1977. It runs around the relevant injection pump drive pulleys according to the factory engine layout.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919203040
The product you are viewing cross references to these numbers
Product Information
Injection pump beltThis OE Match injection pump belt is a replacement drive belt for the mechanical fuel injection system on Porsche 911 models from 1969 to 1977. It is designed to match the original-style fitment and function. This replacement belt helps drive the mechanical fuel injection pump, supporting correct fuel delivery and reliable engine running.
Fits:
Porsche 911 1969 - 1977
Diagram ref no 21
The injection pump belt transfers rotational drive to the fuel injection pump. This allows the pump to operate in sync with the engine and deliver fuel correctly. A good belt is essential for accurate fuel delivery, smooth running, and dependable engine performance on models using mechanical fuel injection.
Functions
• Replaces the injection pump drive belt
• Drives the mechanical fuel injection pump
• Supports correct fuel delivery and engine running
• Helps maintain injection pump timing and operation
• Replaces cracked, worn, stretched, frayed, or missing belts
• Suitable for fuel injection system service and preventative maintenance
• OE Match replacement for classic Porsche 911 engine service.
Why Replace This Part?
Injection pump belts wear over time due to heat, age, tension changes, pulley contact, vibration, and engine bay conditions. A worn belt can crack, stretch, fray, slip, or fail completely. If the belt fails, the injection pump may stop operating correctly, causing poor running, loss of fuel delivery, difficult starting, or engine stoppage. Replacing the belt helps maintain reliable mechanical fuel injection performance.
When to Replace This Part
• The injection pump belt is cracked, glazed, frayed, loose, or worn
• Fuel injection pump service or adjustment is being carried out
• Engine running is poor due to suspected injection pump drive issues
• The belt tension is incorrect or unstable
• The injection pump, pulleys, or related components are being serviced
• Preventative belt replacement is being carried out during scheduled maintenance
• The vehicle is undergoing Porsche 911 fuel injection or engine restoration.
Where it fits on the car
This belt fits within the mechanical fuel injection pump drive system on Porsche 911 models from 1969 to 1977. It runs around the relevant injection pump drive pulleys according to the factory engine layout.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919203040
99919203040
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Price: £9.55
In Stock - 24 Hour Dispatch
Shop Securely
12 Month Warranty
Worldwide Delivery
99919209750/2
Product Information
This OE Match alternator belt is a replacement engine drive belt for Porsche 911 models from 1974 to 1979. It is designed to match the original-style fitment and function. This replacement drive belt helps power the alternator and cooling fan assembly, supporting reliable battery charging and engine cooling system operation.
Fits:
Porsche 911 Turbo/SC 1974 - 1979 (Please choose by size)
Diagram ref no 12
The alternator belt transfers rotational drive from the engine pulley to the alternator and fan assembly. This allows the alternator to generate electrical power for the vehicle while also helping drive the engine cooling fan. A correctly fitted and tensioned belt is essential for reliable charging, cooling airflow, and overall engine operation.
Functions
• Replaces the alternator drive belt
• Drives the alternator and cooling fan assembly
• Supports correct battery charging
• Helps maintain air-cooled engine cooling airflow
• Replaces cracked, glazed, stretched, frayed, noisy, or slipping belts
• Suitable for routine servicing and preventative maintenance
• OE Match replacement for classic Porsche 911 engine service.
Why Replace This Part?
Alternator belts wear over time due to heat, engine vibration, pulley contact, age, and tension changes. A worn belt can crack, glaze, stretch, fray, squeal, slip, or fail completely. If the belt fails, the alternator may stop charging and the cooling fan may stop operating correctly, which can lead to warning lights, battery issues, overheating risk, or vehicle breakdown. Replacing the belt helps maintain dependable charging and cooling system performance.
When to Replace This Part
• The alternator belt is cracked, glazed, frayed, loose, or worn
• Belt squeal or chirping is heard during start-up or acceleration
• The battery warning light appears
• Charging system output is low or inconsistent
• Cooling fan drive is being inspected or serviced
• Alternator, fan, pulleys, or related hardware are being repaired
• Preventative belt replacement is being carried out during scheduled maintenance.
Where it fits on the car
This belt fits on the alternator and cooling fan drive system on Porsche 911 models from 1974 to 1979. It runs between the relevant engine pulley and alternator / fan pulley according to the factory belt routing.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919209750
The product you are viewing cross references to these numbers
Product Information
Alternator belt, Belt size: 9.5 x 725.This OE Match alternator belt is a replacement engine drive belt for Porsche 911 models from 1974 to 1979. It is designed to match the original-style fitment and function. This replacement drive belt helps power the alternator and cooling fan assembly, supporting reliable battery charging and engine cooling system operation.
Fits:
Porsche 911 Turbo/SC 1974 - 1979 (Please choose by size)
Diagram ref no 12
The alternator belt transfers rotational drive from the engine pulley to the alternator and fan assembly. This allows the alternator to generate electrical power for the vehicle while also helping drive the engine cooling fan. A correctly fitted and tensioned belt is essential for reliable charging, cooling airflow, and overall engine operation.
Functions
• Replaces the alternator drive belt
• Drives the alternator and cooling fan assembly
• Supports correct battery charging
• Helps maintain air-cooled engine cooling airflow
• Replaces cracked, glazed, stretched, frayed, noisy, or slipping belts
• Suitable for routine servicing and preventative maintenance
• OE Match replacement for classic Porsche 911 engine service.
Why Replace This Part?
Alternator belts wear over time due to heat, engine vibration, pulley contact, age, and tension changes. A worn belt can crack, glaze, stretch, fray, squeal, slip, or fail completely. If the belt fails, the alternator may stop charging and the cooling fan may stop operating correctly, which can lead to warning lights, battery issues, overheating risk, or vehicle breakdown. Replacing the belt helps maintain dependable charging and cooling system performance.
When to Replace This Part
• The alternator belt is cracked, glazed, frayed, loose, or worn
• Belt squeal or chirping is heard during start-up or acceleration
• The battery warning light appears
• Charging system output is low or inconsistent
• Cooling fan drive is being inspected or serviced
• Alternator, fan, pulleys, or related hardware are being repaired
• Preventative belt replacement is being carried out during scheduled maintenance.
Where it fits on the car
This belt fits on the alternator and cooling fan drive system on Porsche 911 models from 1974 to 1979. It runs between the relevant engine pulley and alternator / fan pulley according to the factory belt routing.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919209750
99919209750
The product you are viewing cross references to these numbers
Vehicle Group
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)
Price: £4.00
In Stock - 3- 5 Days Dispatch
Shop Securely
12 Month Warranty
Worldwide Delivery
Call us
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