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Porsche // 911 & 912 (1965-1989) // 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
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Hydraulic belt tensioner. Porsche 997.2 / 991 / 992.1 / Boxster / Cayman - 0PB903317
0PB903317/1
Vehicle Group
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
Information
Hydraulic belt tensioner.
Fits:
Porsche 997.2 Carrera 2009-12
Porsche 997.2 Turbo 3.8L 2010-13
Porsche 991.1 Carrera 2012-16
Porsche 991.2 Carrera 2017-19
Porsche 991 Turbo 2014-20
Porsche 991 GT3 3.8L 2013-21
Porsche 992.1 Carrera 2019>>
Porsche 992 Turbo 2020>>
Porsche 992 GT3 2021>>
Porsche 987.2 Boxster 2009-12 incl. Spyder
Porsche 981 Boxster 2012-16 incl. Spyder
Porsche 982 Boxster GTS 4.0L / Spyder 4.0L 2017>>
Porsche 987C.2 Cayman 2009-12
Porsche 981C Cayman 2013-16 incl. GT4
Porsche 982C Cayman GTS 4.0L / GT4 4.0L 2017>>
Click 'Zoom in' for large parts diagram
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0PB903317
The product you are viewing cross references to these numbers
Fits:
Porsche 997.2 Carrera 2009-12
Porsche 997.2 Turbo 3.8L 2010-13
Porsche 991.1 Carrera 2012-16
Porsche 991.2 Carrera 2017-19
Porsche 991 Turbo 2014-20
Porsche 991 GT3 3.8L 2013-21
Porsche 992.1 Carrera 2019>>
Porsche 992 Turbo 2020>>
Porsche 992 GT3 2021>>
Porsche 987.2 Boxster 2009-12 incl. Spyder
Porsche 981 Boxster 2012-16 incl. Spyder
Porsche 982 Boxster GTS 4.0L / Spyder 4.0L 2017>>
Porsche 987C.2 Cayman 2009-12
Porsche 981C Cayman 2013-16 incl. GT4
Porsche 982C Cayman GTS 4.0L / GT4 4.0L 2017>>
Click 'Zoom in' for large parts diagram
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0PB903317
94810226100
0PB903317
The product you are viewing cross references to these numbers
Price: £104.25
In stock
Related products
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 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
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
Information
Injection pump belt
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
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
99919203040
The product you are viewing cross references to these numbers
Price: £11.95
Arriving soon
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 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
The product you are viewing cross references to these numbers
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
Price: £7.96
In stock