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Gates
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Related, superseded, cross reference or alternative numbers for comparison.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
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
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