This high-pressure outlet pipe is designed for 2.0 HDi diesel engines equipped with RHR / RHK injection pumps in the Siemens fuel system. The part is commonly searched under the code 1570J4 and is aimed at professional mechanics and experienced DIYers who maintain Citroën and Peugeot vehicles. As a direct-fit high-pressure fuel line, it provides a reliable connection from the injection pump to the fuel distribution system and is suitable where the original routing and fittings match the RHR/RHK pump geometry.

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: 1570J4
• Additional Numbers: Siemens System; Compatible With RHR And RHK Pump Types

Why Choose This Part

For garages and skilled DIYers, this outlet pipe offers a cost-effective solution when a direct replacement is needed for the high-pressure fuel circuit on 2.0 HDi engines. It is supplied used but confirmed fully sealing, which preserves fuel system integrity and prevents pressure loss or external leaks that can cause rough running or starting issues. Typical searches often use the part code 1570J4 — including that code in your search increases findability.

Installation Recommendations

• Work On A Cold Engine And Relieve Fuel System Pressure Before Removing Any High-Pressure Lines.
• Wear Appropriate Safety Gear; High-Pressure Diesel Fuel Can Be Dangerous. Use Eye Protection And Gloves.
• Replace Sealing Elements: Always Fit New Crush Washers Or O-Rings At Each Connection Point. Do Not Reuse Deformed Washers.
• Hand-Start Threads To Avoid Cross-Threading, Then Tighten To Manufacturer Torque Specifications Where Available. If Specific Torque Values Are Not At Hand, Use Controlled Even Tightening And Verify For Leaks During Initial Run.
• After Installation, Prime The Fuel System According To The Vehicle Procedure And Check For Leaks At Idle And Under Load.
• If The Pipe Shows Signs Of Corrosion, Bends, Or Damage To The Fitting Ends, Replace Rather Than Refit—Damaged high-pressure lines Can Fail Suddenly.

Common Failure Causes

The most frequent reasons for outlet pipe failure are corrosion of the metal tube or fittings, deterioration of sealing washers or O-rings, and mechanical fatigue from vibration or impact. Contaminants in the fuel (particles or water) can accelerate wear on sealing surfaces and connections. Over-tightening or improper installation can deform fittings and cause leaks. Additionally, abnormal pressure spikes from a failing pump may stress the line and connections, leading to cracks or leaks over time.

Notes For Professionals

Always inspect mating surfaces on the pump and rail/injector end for damage before fitting a replacement pipe. When replacing high-pressure components, follow the vehicle manufacturer’s bleeding and priming procedures to avoid air ingress and ensure correct system function. This part is intended for vehicles matching the models and pump types listed above; compatibility is typically searched by part code 1570J4.

This high-pressure outlet pipe connects the common-rail injector to the fuel system on 2.0 HDi engines (engine codes RHR and RHK) equipped with the Siemens injection system. Designed to provide a secure, leak-free fuel feed to the injector, this genuine-style pipe is commonly sought by professional mechanics and DIY enthusiasts under the part code 1570J3. It is suitable for vehicles from the Stellantis group (Citroën / Peugeot) and is an economical replacement when the original pipe shows signs of wear or leakage.

The pipe is manufactured to meet the dimensional and sealing requirements of the HDi high-pressure system. When installed correctly it maintains system pressure and prevents fuel leaks that can cause hard starting, injector misfires, or visible diesel seepage around the injector area.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: 2.0 HDi Engines (RHR, RHK)
• Product Codes: 1570J3
• Additional Numbers: Siemens Injection System Compatibility, Common Rail Outlet Pipe

Compatibility

Typical vehicle applications include Citroën C4, Citroën C4 Picasso, Citroën C5, Citroën C8, Peugeot 3008 I, Peugeot 307, Peugeot 308, Peugeot 5008 I and Peugeot 807 fitted with the 2.0 HDi RHR/RHK engines. Always match the part code 1570J3 when searching for the correct replacement.

Installation Recommendations

Before replacement, relieve fuel system pressure following safe workshop procedures. Clean the surrounding area to avoid contamination entering the injector or rail. Remove the retaining clips or brackets, loosen the fittings progressively, and replace the pipe together with new sealing rings/washers. Tighten fittings to the manufacturer’s torque specification and then start the engine and inspect for leaks at operating pressure. Use appropriate hand tools and, if available, a calibrated torque wrench for the final tightening. Replace any damaged clamps or seals rather than reusing them.

Why This Part Typically Fails

Failures most commonly result from long-term exposure to vibration and thermal cycles, corrosion (especially in regions using road salt), damaged or hardened sealing washers, and mechanical stress from overtightening or misalignment. Leaks can also develop if the pipe has been kinked or impacted during previous repairs. Regular inspection during major services helps catch early signs of seepage before more serious issues develop.

Searching by the part number 1570J3 greatly speeds up finding the correct replacement. This outlet pipe is a practical choice for restoring a reliable fuel seal on HDi common-rail systems and getting the engine back to stable running conditions.

This high-pressure outlet pipe connects the common rail to the injector on 2.0 HDi engines (RHR / RHK) equipped with the Siemens injection system. Designed for direct replacement on affected Citroën and Peugeot models, the part is often searched by its product code 1570J6. The pipe is supplied used but has been inspected for sealing integrity, making it a cost-effective option for professional workshops and competent DIY mechanics who need a reliable repair quickly.

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: Not Specified

Function And Application

The outlet pipe delivers high-pressure diesel from the common rail to the injector nozzle. It must withstand repeated pressure spikes, heat cycles, and vibration while maintaining a leak-free seal. A correctly functioning pipe is critical for proper injection timing and consistent fuel delivery, which affects engine performance, emissions, and fuel economy.

Installation Recommendations

• Depressurize The Fuel System Before Starting Work To Avoid High-Pressure Fuel Spray.
• Use The Correct High-Pressure Wrenches To Avoid Rounding Off Nuts And Fittings.
• Replace Sealing Washers Or O-Rings With New Items During Installation; Never Reuse Crushed Washers.
• Avoid Twisting Or Bending The Pipe Excessively—Align Fittings Carefully To Prevent Stress And Fatigue.
• Tighten Connections To Manufacturer Torque Specifications Where Available; If Unknown, Tighten Securely But Do Not Over-Torque.
• After Installation, Prime The Fuel System And Check For Leaks With The Engine Running At Idle Before Road Testing.
• Observe Safety Precautions When Working With Diesel Fuel And High-Pressure Components.

Why This Part Fails Most Often

• Seal Degradation: Sealing Washers And O-Rings Harden Or Crack Over Time, Causing Leaks.
• Corrosion And Contamination: Water Or Particulate Contamination Can Accelerate Corrosion And Wear.
• Vibration And Mechanical Stress: Repeated Engine Vibration Or Poor Mounting Can Cause Fatigue Cracks.
• Improper Installation: Cross-Threading, Over-Tightening, Or Reusing Old Seals Leads To Failures.
• Impact Damage: Road Debris Or Accident Damage Can Deform The Pipe And Compromise Sealing.

Suitable For Professional Mechanics And Experienced DIY Enthusiasts Searching By Part Number 1570J6. Replace Faulty Pipes Promptly To Prevent Fuel Leaks, Loss Of Performance, And Potential Safety Hazards.

The RAIL outlet pipe Citroën Peugeot 1570H5 is an original high-pressure pipe designed for the fuel system of 1.6 HDi diesel engines. It ensures safe and precise fuel removal from the high-pressure pump to the common rail rail, which directly affects the proper operation of the engine, performance and consumption. A properly functioning pipe is essential to maintain system pressure and keep the injectors running smoothly, especially in modern HDi engines that are sensitive to fuel quality and pressure.

The part is suitable for Citroën and Peugeot cars equipped with a 1.6 HDi engine (depending on the specific engine type and year of manufacture of the car). These are always used original car parts from disassembly, which are an ideal choice for auto mechanics and home repairers looking for a cost-effective and functional solution to fuel system malfunctions.

Technical information:
Manufacturer: PSA / Citroën / Peugeot
Model: 1.6 HDi – RAIL outlet pipe from the high pressure pump
Product codes: 1570H5
Other numbers: may vary according to production series and engine subvariants (e.g. different indexes or pipe manufacturer markings)

Part Type: High Pressure Fuel System Outlet Manifold (RAIL)
Location: between the high pressure pump and the fuel rail (common rail)
Engine: diesel 1.6 HDi (HDi / HDi FAP – depending on the specific application)
Application: Citroën and Peugeot cars with a 1.6 HDi engine

Installation recommendations:
– Before assembly, carefully clean the surroundings of the high-pressure pump and the RAIL rails so that dirt does not enter the system.
– Always use the correct high-pressure fittings and seals recommended by the manufacturer.
– Do not bend or deform the tube – even minor damage can cause a leak or rupture under pressure.
– Observe the screwing torques according to the workshop manual for the given engine (the common rail fuel system operates at very high pressure).
– After assembly, check the tightness of the joints while the engine is running and at different speeds – there must be no visible fuel leaks or a diesel smell around the engine.
– It is recommended to carry out the assembly on a cold engine and to take extra care due to the high pressure in the fuel system.

This high-pressure feed pipe connects the common rail to the injectors for cylinders three and four on 1.4 HDi 16V (8HY) engines. Designed for Citroën and Peugeot applications, the pipe is a direct-fit replacement often searched by part number 1570F7. It is an essential item for professional workshops and experienced DIY mechanics repairing fuel delivery to the affected injectors or replacing damaged rail lines.

The pipe’s primary function is to transport pressurized diesel from the common rail to the injector connections for cylinders 3 and 4 while maintaining a secure, leak-free seal under high pressure. Proper condition of this pipe is critical for consistent injection timing and engine performance; a leaking or damaged pipe can cause rough running, fuel smell in the engine bay, or fuel leaks.

Technical Information

• Manufacturer: Stellantis / Citroén / Peugeot
• Model: 1.4 HDI 16V (Engine Code 8HY); Citroën C3; Peugeot 1007
• Product Codes: 1570F7, 1570.F7
• Other Numbers: NFP

Installation Recommendations

• Work With Depressurized Fuel System: Before any disassembly, relieve fuel pressure according to the vehicle service manual to avoid high-pressure spray.
• Disconnect Battery: Isolate electrical supply to prevent accidental cranking during work.
• Clean Work Area: Remove dirt and debris around the rail and injector ports to prevent contamination entering the fuel system.
• Replace Sealing Elements: Fit new sealing washers or O-rings where applicable. Do not reuse old seals.
• Correct Orientation And Secure Fixing: Install the pipe in the original routing; avoid kinks or contact with hot or moving parts. Tighten clamps and fittings to manufacturer torque specifications.
• Leak Check After Installation: Prime the system, start the engine, and inspect all connections under operating pressure for leaks before finishing the job.
• Safety Precautions: Wear eye protection and gloves. Avoid open flames and smoking while working on the fuel system.

Most Common Causes Of Failure

• Corrosion And Material Degradation: Exposure to moisture and road salts can corrode metal lines or fittings, compromising the seal.
• Seal Deterioration: O-Rings and sealing washers age and harden, leading to leaks at the connections.
• Mechanical Damage: Impact, abrasion, or improper handling during previous repairs can deform the pipe or fittings.
• Vibration And Fatigue: Repeated engine vibrations and thermal cycling can cause loosening of fittings or micro-cracks over time.
• Incorrect Installation: Reused seals, improper tightening, or incorrect routing can lead to early failure.

Search By Part Number For Faster Results: 1570F7. Order the correct feed pipe to restore reliable fuel delivery and avoid performance issues related to leaks or pressure loss.

This high-quality inlet pipe is designed for the fuel rail of the 1.4 HDi 16V engine and connects the rail to cylinders 1 and 2. Ideal for professional workshops and experienced DIY mechanics, the part restores correct fuel delivery to the front cylinders and helps eliminate leaks, pressure loss and related performance issues. The listing is optimized for searches by part number and model names (e.g. 1570F6), making it easy to find when sourcing replacement components for Citroën and Peugeot vehicles.

Technical Information

• Manufacturer: Stellantis / Citroën / Peugeot
• Model: Citroën C3; Peugeot 1007
• Product Codes: 1570F6; 1570.F6
• Other Numbers: Engine Code 8HY; 1.4 HDi 16V

Function and Application

The inlet pipe routes high-pressure diesel from the common rail to the injectors feeding cylinders 1 and 2. As part of the common-rail system, it must maintain a tight, vibration-resistant connection to prevent pressure loss and fuel leaks that cause rough running, misfires or loss of power.

Common Failure Reasons

• Corrosion and material fatigue from age and exposure to moisture or road salt.
• Mechanical damage during previous servicing or from engine movement/vibration.
• Deterioration of sealing rings or crush washers leading to leaks.
• Contamination of the fuel system causing erosion or clogging at joints.

Replacement & Fitment

Replacement is straightforward for a trained mechanic but requires care. Typical steps include depressurizing the fuel system, gaining safe access to the fuel rail, removing the old pipe and seals, fitting the new pipe with new sealing rings or washers, and checking all connections for correct seating. After installation, perform a leak test and start-up checks to ensure proper fuel pressure and no leaks.

Installation Recommendations

• Work in a clean area to avoid introducing contamination into the fuel system.
• Always use new sealing rings or crush washers when refitting fuel lines.
• Tighten connections to the Manufacturer’s specified torque values where available.
• After fitting, inspect visually and run the engine to check for leaks and correct fuel pressure/idle quality.
• Replace adjacent components showing wear (clips, brackets, seals) to prevent repeat failures.

When To Replace

There is no fixed service interval for the inlet pipe; replacement is based on symptoms or visible damage. Replace the pipe if you observe fuel smell, visible leaks at the connections, poor engine running, loss of power or if the pipe shows corrosion or mechanical damage during inspection.

Why Buy This Part

Searchable by common part numbers and vehicle models, this inlet pipe is a practical choice for efficient repairs. Sourcing the correct pipe helps restore reliable fuel delivery to the affected cylinders, reduces diagnostic time and prevents secondary damage caused by fuel leaks or low rail pressure.

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.

This fuel rail inlet pipe (part code 1570Q2) is a direct-fit component for the high-pressure common rail system used on a range of Citroën and Peugeot 1.4 HDi and 1.6 HDi e‑HDi engines. Designed for professional workshops and experienced DIY mechanics, the pipe restores proper fuel delivery to the fourth cylinder and helps eliminate leaks, pressure loss and related drivability issues. Key search terms: Fuel Rail Pipe, Fuel Injection Feed Pipe, 1570Q2, 1.4 HDi, 1.6 HDi e‑HDi, Citroën, Peugeot.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Vehicles equipped with 1.4 HDi and 1.6 HDi e‑HDi engines (examples: Citroën C3, C4, Berlingo; Peugeot 207, 208, 308, Partner)
• Product Codes: 1570Q2
• Additional Numbers: N/A

Function And Symptoms

The pipe carries diesel from the high-pressure fuel rail to the injector of the fourth cylinder. When the pipe or its seals fail, symptoms typically include visible fuel leaks near the rail or injector, strong diesel smell, rough idle, loss of power, difficult starting and potential illumination of engine management warnings related to fuel pressure. A leaking feed pipe can quickly reduce rail pressure and affect multiple cylinders.

Installation Recommendations

1. Relieve fuel system pressure before any work (follow manufacturer procedure to avoid spray and fire risk).
2. Work in a well-ventilated area, keep ignition sources away and use appropriate personal protective equipment.
3. Remove any engine covers and components that block access to the rail and injectors.
4. Disconnect the low-pressure feed lines and carefully undo the fittings at the rail and injector. Prepare to catch diesel.
5. Always replace sealing washers/olive seals and use new copper crush washers or O‑rings as specified by the manufacturer. Do not reuse old seals.
6. Fit the new pipe and tighten fittings to the manufacturer’s torque settings (do not overtighten). If torque values are unknown, consult official repair documentation.
7. After installation, prime the fuel system and check thoroughly for leaks at operating pressure. Start the engine and verify correct idle and absence of fault codes.

Why This Part Fails Most Often

• Corrosion and material fatigue from long-term exposure to diesel and environment, especially on older vehicles.
• Mechanical damage during road use or previous service (bent pipes, cracked fittings).
• Degraded or hardened seals and crush washers that no longer provide a leak‑tight connection.
• Improper assembly or overtightening in prior repairs leading to stress cracks or stripped threads.
• Contaminated fuel or debris that accelerates seal wear and damages sealing surfaces.

Suitable for replacement during fuel rail or injector service. Ideal for garages and competent DIYers who can follow safe fuel‑system procedures. Check visual condition of the rail and injector connections when replacing this pipe to ensure long‑term reliability.

Are you looking for reliable and high-quality spare parts for your Citroën or Peugeot vehicle? This Rail Pipe Fuel Outlet from Pump is the perfect solution for repairs or maintenance of your engine system. The part is primarily intended for models with 1.4 HDI and 1.6 HDI eHDI engines, ensuring compatibility and effective functionality.

The Rail Pipe Fuel Outlet from Pump is a critical component of the fuel system that ensures the proper fuel flow from the pump to the injectors. The correct function of this part is essential for maintaining optimal engine performance and long-term reliability. This replacement part offers an excellent price-to-performance ratio and is an ideal choice for Citroën and Peugeot owners who repair their vehicles themselves, or for mechanics seeking quality spare parts at a reasonable price.

Technical Information
Manufacturer: PSA Citroën Peugeot
Model: Suitable for Citroën and Peugeot with RAIL 1.4 HDI, 1.6 HDI eHDI engines
Product Codes: 9804226780, 1570Q3
Other Numbers: Information not available

If you need assistance with selecting or installing this part, do not hesitate to contact us. Our team of experts is here to help you with any inquiries. The part is ready for immediate installation while adhering to all quality standards.

Product Overview

This is a direct-fit fuel supply pipe (part number 1570P9) for the high-pressure RAIL feeding the first cylinder on Citroën and Peugeot 1.4 HDi and 1.6 HDi e-HDi diesel engines. Designed for professional workshops and competent DIY mechanics, this pipe restores correct fuel routing and sealing at the injector/rail interface to maintain stable rail pressure and reliable starting, idling and performance.

Function And Application

The pipe conveys high-pressure diesel from the common-rail to the injector of cylinder 1. It must resist high injection pressures, temperature cycles and vibration while keeping a leak-free seal at connections. Correct replacement prevents pressure loss at the rail, reduces the risk of misfires and avoids fuel leaks that can lead to poor engine performance or safety hazards.

Symptoms Of A Faulty Pipe

• Visible fuel leak at the rail or injector area.
• Hard starting, rough idle or misfires on cylinder 1.
• Loss of rail pressure leading to loss of power or poor fuel economy.
• Strong smell of diesel around the engine bay.

Replacement Procedure (Overview)

1. Depressurize the fuel system before any work to avoid spray of high-pressure diesel.
2. Protect surrounding components and clean the working area to prevent contamination of the injection system.
3. Use two appropriate wrenches when loosening fittings to avoid twisting the rail or injector.
4. Always renew sealing elements (crush washers/olives or sealing rings) according to manufacturer practice; do not reuse old seals.
5. Refit the new pipe and tighten fittings to the manufacturer’s torque specification.
6. Prime the fuel system and check for leaks at operating pressure; run the engine and verify stable rail pressure and absence of fault codes.

Installation Recommendations

• Perform installation in a clean, well-lit environment to avoid contamination of the common-rail system.
• Use dedicated fuel-line tools where needed and follow the vehicle manufacturer’s tightening sequence and torque values.
• Replace sealing washers or olives every time the connection is opened.
• After fitting, bleed the system and inspect for leaks at idle and under load. Address any leak immediately.
• If unsure about bleeding or priming procedures, have the final check performed by a trained technician.

Most Common Failure Reasons

• Corrosion and material fatigue from long-term exposure to heat, vibration and road salt.
• Mechanical damage during previous maintenance or engine work (bent or cracked pipe).
• Failed or degraded sealing washers leading to slow or sudden leaks.
• Improper installation or incorrect torque causing loosening or pinching of the pipe.

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot)
• Model: 1.4 HDi, 1.6 HDi e-HDi Engines
• Product Codes: 1570P9
• Other Numbers: N/A

Who Should Fit This Part

Intended for professional auto technicians and experienced DIY mechanics familiar with common-rail diesel systems. Proper handling, correct sealing and correct torque are essential for safe and reliable operation.