This Bosch fuel injection fuel accumulator is the correct service unit for the Porsche 911 applications listed in the fitment table below. In CIS fuel systems, the accumulator helps maintain residual pressure after shutdown and supports stable fuel pressure during operation and hot restarts. Bosch has been a global leader in automotive technology since 1886, pioneering innovations like electronic fuel injection and oxygen (lambda) sensors that shaped modern engine management. Today, Bosch supplies OEM-quality sensors, engine electronics, ignition components, and braking parts found in vehicles worldwide. Known for precision engineering and reliable performance, Bosch parts are built to factory specifications for dependable fitment and long-term durability.
Technical Details
- Manufacturer part number: 0-438-170-009
- Product type: CIS / K-Jetronic fuel accumulator
- Function: maintains residual fuel pressure and dampens pressure fluctuation
- Service note: inspect adjacent fuel lines and sealing washers during replacement
- Fitment note: use the table below to confirm year and model application
Fitment & Compatibility
Use the fitment table below to confirm year, model, submodel, and notes before ordering.
If you need help checking fitment, send us your VIN. We’ve been handling Porsche parts questions for over 20 years, and we still treat fitment details like they matter.
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1977 | Porsche | 911 | ||
| 1978 | Porsche | 911 | ||
| 1979 | Porsche | 911 |