Description
Outlet pipe for the injection pump for RAIL 1.4 HDi 16V 8HY.
This high-pressure outlet pipe is a direct-fit fuel line for the RAIL common-rail system used on 1.4 HDi 16V (engine code 8HY) engines. Designed for Citroën and Peugeot applications, the pipe transfers pressurised diesel from the injection pump to the rail with minimal pressure loss and reliable sealing at the connections. The part is often searched by its product code (1570F1) on workshops and e-commerce sites—useful for quick identification when ordering or replacing fuel-system components.
For professional mechanics and DIY enthusiasts, this replacement fuel pipe restores correct fuel delivery when leaks, cracks or corrosion compromise the original line. Correct installation and use of new sealing washers are essential to maintain high-pressure integrity and avoid air ingress or fuel loss.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: 1.4 HDi 16V (Engine Code 8HY) — Typical Vehicle Fitment: Citroën C3, Peugeot 1007
- Product Codes: 1570F1
- Other Numbers: 1570.F1, 1570F1/1570.F1, NFP
Compatibility And Fitment
Primarily fitted to 1.4 HDi 16V engines with the RAIL common-rail system. Common vehicle applications include Citroën C3 and Peugeot 1007 with the 8HY engine. Always compare the part code and physical connection type with the original pipe before installation.
Installation Recommendations
- Work Safely: Relieve fuel system pressure and disconnect the battery before starting. Wear eye protection and follow safe handling for diesel components—fuel can be under very high pressure.
- Prepare The Area: Clean surrounding areas to avoid contamination entering the high-pressure system when lines are disconnected.
- Replace Sealing Washers: Always use new copper or aluminium sealing washers and any specified O-rings for banjo or bolt connections.
- Tightening And Reassembly: Tighten fittings to the manufacturer’s torque specifications where available. Do not overtighten—follow torque specs in service manual.
- Priming And Leak Check: After installation, prime the fuel system and crank the engine as required to remove air. Carefully inspect all connections for leaks at idle and under load.
Why This Part Fails Most Often
High-pressure fuel pipes are exposed to mechanical stress, vibration and corrosive elements. The most frequent causes of failure are corrosion (often from water contamination in fuel or road salt), fatigue cracking from vibration or improper routing, damaged sealing washers, and impact or mishandling during previous repairs. Symptoms of a failing outlet pipe include visible fuel leaks, strong diesel odor, hard starting, rough idling or loss of power. Prompt replacement prevents fuel loss and avoids damage to other fuel-system components.
Choosing the correct replacement pipe by product code (e.g., 1570F1) and ensuring professional installation restores system integrity and helps maintain engine performance and safety.
