Description
Outlet pipe to injector for 2.0 HDi RHR/RHK, Siemens system. Used, fully sealing.
This injector outlet pipe (part number 1570J6) is a direct-fit fuel rail line designed for Common Rail 2.0 HDi engines with Siemens injection components. It provides a reliable fuel passage between the high-pressure rail and the injector, delivering precise fuel metering under high pressure. Suitable for professional workshops and experienced DIY mechanics who maintain Citroën and Peugeot diesel engines.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Citroën C4; Citroën C4 Picasso; Citroën C5; Citroën C8; Peugeot 3008 I; Peugeot 307; Peugeot 308; Peugeot 5008 I; Peugeot 807
- Product Codes: 1570J6
- Additional Numbers: None Available
Fitment And Compatibility
Intended for 2.0 HDi diesel engines with RHR or RHK engine codes fitted with the Siemens common rail injection system. Check engine code and visual match of the outlet pipe to ensure correct orientation and length. The pipe is commonly used on the listed Citroën and Peugeot models; compatibility depends on engine variant and production series.
Function
The outlet pipe transmits high-pressure fuel from the common rail to the injector. It must maintain a leak-free connection at both rail and injector ends, withstand high operating pressures and thermal cycles, and preserve fuel delivery geometry to ensure correct injector performance and engine combustion.
Common Faults And Causes
Typical reasons for replacement include:
- Seal Degradation: O-Rings and sealing faces deteriorate over time, causing fuel leaks.
- Corrosion And Contamination: Moisture, road salts or contaminated fuel can corrode the pipe or damage sealing surfaces.
- Mechanical Fatigue: Vibration and thermal cycling can cause cracks or loosening at connection points.
- Improper Installation Or Reuse Of Old Seals: Reusing seals or incorrect torque can result in leaks and pressure loss.
Installation Recommendations
Follow these guidelines for a safe and durable replacement:
- Depressurize Fuel System: Relieve rail pressure before disconnecting any fuel lines to avoid injury and fuel spray.
- Use New Seals: Always fit new O-Rings or sealing washers at both ends; never reuse old seals.
- Clean Mating Surfaces: Remove dirt and deposits from injector and rail seats to ensure proper sealing.
- Torque To Manufacturer Specification: Tighten fittings to the OEM torque values; do not overtighten.
- Check For Leaks: After installation, run the engine and inspect all connections under pressure for leaks.
- Inspect Surrounding Components: Check injectors, rail clamps and mounting points for wear or damage while the system is open.
Notes For Mechanics
This is a used item in fully sealing condition. It is ideal for urgent repairs or when a direct replacement is required under the original part code 1570J6. For a reliable repair, couple replacement of the outlet pipe with new injector O-Rings and a careful leak test under operating conditions.
Order this injector outlet pipe when you need a direct-fit solution for common-rail 2.0 HDi engines — a practical choice for workshop technicians and competent DIY mechanics restoring correct fuel pressure and eliminating leaks.
