Overview

High-pressure injection pump for the 1.6 eHDI diesel engine family. Manufactured by Continental, this unit is designed to deliver the precise fuel pressure and timing required by modern common-rail diesel injection systems used in a range of Stellantis vehicles. The pump is a direct-fit replacement for original equipment on compatible Citroën, Peugeot and DS models and is commonly referenced by OEM and supplier part numbers.

Applications

Compatible With (examples):

• Citroën Berlingo B9
• Citroën C3 II
• Citroën C3 Picasso
• Citroën C4 II
• Citroën C4 Picasso
• Citroën C5 X7
• Peugeot 308
• Peugeot Partner Tepee
• Peugeot 508

Technical Information

• Manufacturer: Continental
• Model: 1.6 eHDI Injection Pump
• Product Codes: A2C53381555, 5WS40894, 9672605380
• Other Numbers: 1920RY, 1921Q7

Function And Key Features

The injection pump supplies high-pressure fuel to the common-rail system and controls delivery timing and pressure according to engine demands. Accurate metering and stable pressure are essential for combustion efficiency, low emissions and proper engine response. The unit integrates with the engine management system and high-pressure fuel lines to feed injectors at the required pressure.

Common Faults And Lifespan

Typical Causes Of Failure:

• Contaminated Fuel: Particles or water in fuel accelerate wear of internal components.
• Wear And Tear: High mileage can cause internal wear, reducing pressure capability.
• Faulty Pressure Control Valve Or Seals: Internal leakage or regulator faults lead to poor performance and drivability issues.

Expected Service Life: Lifespan depends on maintenance, fuel quality and driving conditions. Many pumps remain serviceable beyond 150,000 km with proper care; contamination and neglect shorten service life considerably.

Replacement And Installation Recommendations

Basic Replacement Steps (overview for experienced technicians):

• Relieve Fuel System Pressure Before Disconnecting Any Fuel Lines.
• Disconnect The Negative Battery Terminal To Avoid Electrical Hazards.
• Remove Engine Covers And Intake Components To Access The Pump.
• Carefully Disconnect High-Pressure Fuel Lines; Replace Sealing Washers/Banjo Bolts As Required.
• Unbolt And Remove The Pump, Noting Timing Marks And Orientation.
• Install The Replacement Unit Using New Seals; Torque Fasteners To Manufacturer Specifications.
• Prime And Bleed The Fuel System Thoroughly To Avoid Air Ingress.
• Start The Engine And Check For Leaks, Proper Idle And Smooth Throttle Response.

Notes: Always Replace Sealing Washers And Any Damaged Fuel Lines. After Installation, Verify Fuel Pressure And Engine Operation. If In-Doubt, Use Dealer Or Specialist Diagnostic Equipment For Final Checks.

Why This Part Is Searched By Part Number

Technicians and DIYers commonly search using OEM and supplier numbers (for example 5WS40894, 9672605380, A2C53381555, 1920RY, 1921Q7) to ensure exact compatibility with the vehicle’s engine variant. Using the correct code helps avoid fitment issues and ensures correct performance.

Recommendation

For reliable results, replace the pump together with all associated sealing parts and prime the fuel system carefully. If the vehicle exhibits poor starting, loss of power, excessive smoke or fuel leaks, inspect the pump along with fuel filters and lines. When possible, install using a workshop equipped for diesel systems and follow manufacturer procedures.

Are you looking for a reliable high pressure injection pump for the 2.0 HDi? This original DELPHI part for PSA engines (DW10) with the designation RH02 is used, carefully tested and with a guarantee of functionality. The ideal solution for Citroën and Peugeot repairs where an exact match to OEM numbers is key.

Key features
– Original DELPHI high-pressure common-rail pump for diesel engines 2.0 HDi (DW10) – designation RH02
– Fully functional, tested, functionality guaranteed
– Suitable for professional services and home mechanics
– Fast tracking thanks to OEM/Ref. numbers (see below)

OEM / reference numbers
– DELPHI: 9424A050A
– PSA Citroën/Peugeot: 1920QP, 9687959180, 1607397580, 1671544680
– Also often searched under: RH02
Always compare the part number on your original pump or verify compatibility by VIN before purchasing.

Compatibility with cars
– Citroën: C4 II, C4 Picasso II, C5 X7, C8, DS4, DS5
– Peugeot: 3008 I, 308, 407, 5008 I, 807, 508
– Note: The pump also appears in selected Ford/Volvo/Mazda applications with the same engine/part number – always verify compatibility by OEM number.

Technical information
– Type: high-pressure common-rail diesel pump (CR)
– System manufacturer: DELPHI
– Electronically controlled metering control valve (IMV)
– Designed for 2.0 HDi engines (DW10 family) used in PSA
– Structurally for mounting on the engine distribution; intended for common-rail injection with high fuel pressure

Installation recommendations
– Before installation, carefully clean the fuel system, replace the fuel filter and check the supply pipe
– Observe maximum cleanliness, use new sealing elements and tightening torques according to the manufacturer’s service data
– Ventilate the system properly after assembly; possibly perform basic settings/adaptation in diagnostics
– Installation should be done by a qualified mechanic

Why choose this part?
– Original DELPHI quality and exact match thanks to OEM codes
– Proven functionality – saving time and costs compared to overhauls of unclear origin
– Excellent price/performance ratio for 2.0 HDi repairs

Quick Check Tip: If you find any of the listed OEM numbers on your original pump (eg 1920QP, 9687959180 or 9424A050A), it is the correct replacement.

Key Features And Applications

This Delphi high-pressure injection pump is designed for 2.0 HDi RHR engines with approximately 100 kW output. It is compatible with multiple Stellantis applications and related platforms, commonly fitted to vehicles such as Citroën C5 (including X7) and Peugeot 407, and found in certain Ford, Volvo and Mazda diesel models that share the 2.0 HDi RHR configuration. The pump uses the DELPHI 5WS40019 control system and is supplied without an integrated fuel pressure regulator.

Why Choose This Pump

Ideal for professional workshops and experienced DIY mechanics looking for an exact-fit replacement by part number. The pump matches original equipment specifications for delivery and control when installed and timed correctly. Frequent search terms include part numbers 9656391680, 9424A000A, 1920LP and 1921N3 — entering these codes will help you find the right unit quickly.

Technical Information

• Manufacturer: Delphi
• Model: Injection Pump 2.0 HDi RHR 100 kW
• Product Codes: 5WS40019
• Other Numbers: 9656391680, 9424A000A, 1920LP, 1921N3

Installation Recommendations

• Preparation: Work On A Cold Engine, Disconnect The Battery And Relieve Fuel System Pressure Before Starting.
• Timing: Mark And Align Engine Timing And Pump Timing Marks Precisely. The Pump Must Be Installed With Correct Angular/Timing Position To Avoid Engine Damage.
• Seals And Fittings: Replace All Gaskets, O-Rings And Banjo Fittings; Use New Seals To Ensure Leak-Free Operation.
• Bleeding: Prime And Bleed The Fuel System Thoroughly After Installation To Remove Air; Use A Hand Primer Or Diagnostic Tool Where Available.
• Electrical And Calibration: Verify Electrical Connections And Actuators. Some ECUs May Require Adaptation Or Clearing Of Fault Codes After Replacement.
• Final Checks: Inspect For Leaks, Check Fuel Pressure And Perform A Road Test To Confirm Smooth Idle And Delivery Across The Rev Range.
• Recommendation: If You Are Unsure About Timing Or Calibration Steps, Use Professional Workshop Tools Or Seek Assistance From A Trained Technician.

Most Common Causes Of Failure

High-Mileage Wear: Pump components such as plungers and delivery valves wear over time, especially beyond 150,000 km depending on service history. Contaminated Fuel: Dirt, water or poor-quality diesel accelerates internal wear and can seize moving parts. Fuel Supply Issues: Faulty lift pumps, clogged filters or air ingress cause cavitation and premature damage. Electrical Or Control Faults: Failures of solenoids or control actuators in the DELPHI system can disrupt timing and delivery. External Leaks: Degraded seals and connections lead to loss of pressure and performance.

Practical Notes For Mechanics And DIYers

Search By Part Number For Fast Identification: Use OE Codes 9656391680, 9424A000A, 1920LP or the DELPHI reference 5WS40019 to locate the matching pump. Check Fuel And Filter Condition Before Installing A New Pump To Avoid Early Re-Failure. Keep A Record Of Mileage And Symptoms — Typical Signs Of A Failing Pump Include Hard Starting, Loss Of Power, Excessive Smoke And Fuel Leaks.

This Delphi high-pressure injection pump is designed for 1.4 HDi 16V engines and replaces the original unit on compatible Citroën and Peugeot models. Ideal for professional workshops and DIY mechanics, the pump restores correct fuel delivery and pressure control thanks to its integrated fuel regulator. Commonly searched by part numbers (9643567280, 9652615680, 1920ET, 1921N2), this unit is a direct-replacement style pump for engines fitted with the 8HY/8HV pump type.

Installation Recommendations

Correct installation is essential for reliable operation. Follow these general steps:

• Depressurize The Fuel System And Disconnect The Battery Before Starting.
• Mark The Pump And Engine Timing Positions To Preserve Timing Alignment.
• Carefully Remove Fuel Lines, Electrical Connectors, And Mounting Fasteners.
• Install The New Pump In The Same Orientation; Torque Fasteners To Manufacturer Specifications.
• Reconnect Fuel Lines And Electrical Connectors, Then Prime/Bleed The Fuel System To Remove Air.
• After Installation, Clear Relevant Fault Codes And Verify Fuel Rail Pressure And Engine Operation.

Reason For Failure

Injection pumps on 1.4 HDi engines typically fail for a few recurring reasons: contamination From Water Or Dirt In The Fuel, Wear Of Internal Moving Parts (Plungers/Seals), Malfunction Of The Integrated Fuel Regulator, And Electrical Or Sensor Faults. Symptoms Include Hard Starting, Loss Of Power, Irregular Idling, Fuel Pressure Related Fault Codes (For Example P0087, P0089, P0191) And Visible Fuel Leaks. Maintaining Clean Fuel, Replacing Filters Regularly, And Using Low-Sulfur Diesel Helps Extend Pump Life.

Technical Information

• Manufacturer: Delphi
• Model: Citroën C3; Peugeot 1007; 1.4 HDi 16V Engines (Pump Types 8HY, 8HV)
• Product Codes: 9643567280, 9652615680, 1920ET, 1921N2
• Additional Numbers: R9042Z021A; Related Fault Codes: P0087, P0089, P0191

This pump Comes With An Integrated Fuel Regulator And Is Supplied Without A Pulley—ensure Your Engine’s Drive Or Timing Arrangement Matches The Replacement Unit. After Fitting, Always Prime The Fuel System And Check For Leaks And Correct Fuel Rail Pressure To Avoid Air Entrapment Or Pressure-Related Faults.

This injection pump mount is designed as the direct-fit bracket for Delphi high-pressure injection pumps used on 1.4 HDi 16V (8HY) engines in Citroën and Peugeot models. If you are a professional mechanic or a DIY enthusiast, this sturdy mounting bracket restores correct pump positioning, reduces vibration and stress on the fuel system, and helps maintain reliable fuel delivery. The part is commonly searched by OE numbers 9643421980 and 192654, so use those codes when locating the exact fit for your vehicle.

Technical Information

• Manufacturer: Delphi / Stellantis (Citroën, Peugeot)
• Model: 1.4 HDi 16V 8HY; Fits Citroën C3, Peugeot 1007
• Product Codes: 9643421980, 192654
• Other Numbers: NFP

Function And Benefits

The bracket secures the high-pressure injection pump to the engine, keeping pump alignment and mounting stiffness. Correct mounting is essential to maintain pump timing, avoid excessive vibration, prevent leaks at fuel lines, and reduce wear on pump bearings and drive components. Replacing a damaged or corroded bracket restores factory geometry and helps prevent secondary failures in the fuel system.

Common Failure Causes

Bracket problems typically result from corrosion, metal fatigue, impact damage (collision or road debris), or a seized/overstressed injection pump that transmits excessive forces to the mount. Stripped threads and damaged mounting bosses are frequent after improper previous repairs or overtightening. The bracket itself is not a scheduled wear item and is normally replaced only when damaged or when pump removal is required.

Recommended Installation

• Work Safely: Disconnect the battery and relieve fuel pressure before beginning.
• Access: Remove interfering components (intake ducting, engine covers or brackets) to gain clear access to the pump and mount.
• Mark Pump Position: Before loosening, mark the pump orientation relative to the engine to preserve timing and alignment during reinstallation.
• Support Pump: Use a suitable support to hold the injection pump while removing the mounting bolts.
• Replace Bracket: Remove fasteners, fit the new bracket, and install clean or new bolts as required.
• Tightening: Tighten all fasteners to the manufacturer’s torque specifications and sequence. Use thread locking where specified by the vehicle manufacturer.
• Reassembly And Test: Reinstall removed components, reconnect the battery, prime the fuel system if necessary, and run the engine to check for leaks and secure mounting.

Installation Recommendations

Always Inspect Mounting Hardware: Replace corroded or stretched bolts and check surrounding mounting points for damage. Preserve Pump Timing: Marking pump position before removal avoids timing shifts that can cause poor running or hard starting. After Installation: Check Fuel Lines And Connections For Leaks And Secure All Clips And Supports To Prevent Vibrations.

Why Replace This Part

Replace the bracket when you observe visible damage, excessive play at the pump, stripped threads, or if the pump has been removed for service. Timely replacement prevents secondary failures—such as line fractures or accelerated pump wear—and ensures stable fuel pressure and engine performance.

Search And Order Using OE Codes 9643421980 Or 192654 To Find The Correct Replacement For Citroën C3 And Peugeot 1007 With The 1.4 HDi 16V 8HY Engine.

This rear injection pump bracket is a direct-fit replacement designed for 1.4 HDi 16V 8HY engines used on Citroën and Peugeot models. Supplied as a complete assembly with mounting bolts, the part restores solid support for the high-pressure injection pump, reduces vibration transfer and ensures correct alignment of fuel supply components. Ideal for professional workshops and competent DIY mechanics looking for a reliable repair part listed under OE-related references 192670 and 192655.

Compatible Applications: Fits Citroën C3 and Peugeot 1007 with the 1.4 HDi 16V 8HY engine. Often referenced by part numbers 192670 and 192655 when searching catalogs or ordering replacement components. Installing the correct bracket helps prevent premature wear of the injection pump drive and associated fuel lines.

Technical Information

• Manufacturer: Delphi (Fitment To Citroën/Peugeot Vehicles)
• Model: Citroën C3; Peugeot 1007; Engine 1.4 HDi 16V (8HY)
• Product Codes: 192670, 192655, NFP
• Additional Numbers: Engine Code 8HY

Installation Recommendations

Prepare the vehicle by disconnecting the battery and removing any engine covers or intake components that obstruct access to the injection pump rear area. Support the injection pump or fuel lines to avoid strain during bracket removal. Remove the old bracket with care—keep the new bolts provided and install the complete assembly in the original orientation. Clean mating surfaces and threads before fitting. Use correct torque values from the vehicle repair manual for the mounting bolts and, if required, a medium-strength threadlocker on bolts that experience engine vibration. After installation, check for fuel leaks and re-check bolt torque after the engine has reached operating temperature.

Why This Part Typically Fails

Common causes of bracket failure include corrosion of the mounting points, metal fatigue from long-term vibration, impact damage from collisions or improper jack/support points, and thread wear from repeated removals or overtightening. Failure can also follow replacement or repair of the injection pump if the bracket is not reinstalled correctly or bolts are reused when they should be replaced. Addressing the underlying cause promptly prevents additional stress on the injection pump and fuel lines.

For mechanics and experienced DIYers, replacing the rear injection pump bracket is a straightforward repair that significantly improves pump stability and reduces risk of fuel line stress. Searchable part numbers (192670, 192655) and references to the 1.4 HDi 8HY engine make locating the correct item quick when ordering or checking parts catalogs.

Overview

This Siemens VDO injection pump (5WS40019) is designed for 2.0 HDi engines (RHR / RHK) producing around 100 kW. The unit is commonly fitted to a range of Stellantis vehicles (Citroën and Peugeot) and to certain Ford, Volvo and Mazda applications where the DW10 platform or compatible variants are used. This listing includes frequently searched part numbers such as 5WS40019, 5WS40809, 1920QH and 1920N8—useful when searching by product code.

Technical Information

• Manufacturer: Siemens VDO
• Model: 2.0 HDi 100 kW RHR / RHK
• Product Codes: 5WS40019, 5WS40809
• Additional Numbers: 1920QH, 1920N8

Compatible Vehicles (Examples)

Typical vehicle models that use this pump include Citroën C4, Citroën C4 Picasso, Citroën C5 (including X7), Citroën C8, Peugeot 307, Peugeot 407 and Peugeot 807. Also fitted in certain Ford, Volvo and Mazda applications using compatible 2.0 HDi engine variants. Always verify engine code (RHR / RHK) when matching parts.

Function And Common Faults

The injection pump supplies high-pressure fuel to the common-rail system and precisely meters fuel to the injectors according to engine demand. Common failure modes include internal wear, contamination from degraded fuel or dirty filters, sticking or failing control valves/actuators, and external leaks. Symptoms of a failing pump are rough idle, loss of power, difficult cold starts, increased fuel consumption and fault codes related to fuel pressure or delivery.

Replacement Procedure (General Guidance)

Replacement of the injection pump should be carried out by a qualified technician. General steps include:

• Relieve fuel system pressure and isolate the battery supply for safety.
• Remove intake and ancillary components to access the pump.
• Mark and note timing alignment marks and drive position before removal.
• Disconnect fuel lines, electrical connectors and mounting bolts, then remove the pump.
• Install new pump ensuring correct timing alignment, torque settings and new sealing gaskets.
• Prime the fuel system, bleed air, then check for leaks and proper fuel pressure.
• Clear any related fault codes and verify engine operation under load.

Because timing and calibration are critical, calibration or adaptation may be required after installation—this work is best done with proper diagnostic and calibration equipment.

Installation Recommendations

• Perform the replacement in a clean environment to avoid introducing contaminants to the fuel system.
• Use new sealing washers, gaskets and properly rated fuel lines when reassembling.
• Follow manufacturer torque specifications for all fasteners and respect engine timing marks.
• Prime and bleed the fuel system thoroughly before attempting to start the engine to prevent damage to the pump and injectors.
• If available, use factory diagnostic tools to confirm fuel pressure, timing and to run any required adaptations.

Why This Part Most Often Fails

Failures are most commonly caused by contaminated fuel (water, particles, or degraded additives), insufficient fuel filtration, running with low fuel levels that reduces lubrication, or long-term mechanical wear. Electrical actuator failures and seal deterioration can also lead to loss of performance or leaks. Regular fuel filter maintenance and using good-quality diesel significantly extend pump life.

This high-pressure injection pump is designed for 2.0 HDi 100 kW turbo diesel engines (RHR / RHK) and features the SIEMENS VDO 5WS40019 platform. It supplies precisely metered diesel fuel to the common-rail system and integrates a pressure regulation function to maintain stable rail pressure under varying engine loads. The robust mechanical construction is suitable for workshop replacement and for experienced DIY mechanics familiar with diesel fuel systems.

Key Benefits

– Precise fuel delivery for stable idle, improved throttle response and fuel economy.
– Built with an integrated pressure regulator to ensure correct rail pressure.
– Direct fit for many Citroën and Peugeot applications using the 2.0 HDi 100 kW engines.

Compatibility and Typical Applications

Compatible with vehicles and engine families that use the 2.0 HDi 100 kW RHR / RHK pump, including (but not limited to):

Citroën: C4, C4 Picasso, C5, C5 X7, C8
Peugeot: 307, 407, 607, 807
Also fitted to certain Ford, Volvo and Mazda models that share the same diesel engine/pump specification.

Common Symptoms of a Failing Injection Pump

– Loss of power and poor acceleration.
– Hard starting or extended cranking time.
– Rough idle, misfires or intermittent stalling.
– Excessive smoke from the exhaust or fuel smell in the engine bay.
– Visible fuel leaks around the pump or fuel lines.
– Low rail pressure indicated by diagnostic trouble codes or reduced performance.

How Replacement Is Performed

Replacement of a high-pressure injection pump should be carried out by a qualified mechanic or an experienced DIY technician with access to the correct tools and workshop documentation. Typical steps include:

1. Depressurize the fuel system and remove any necessary engine covers.
2. Mark the engine timing positions and remove drive connections to the pump (camshaft gear, timing belt/chain interface as applicable).
3. Disconnect fuel lines and electrical connectors, catching any spilled diesel and replacing seals.
4. Remove the pump and install the replacement, using new sealing rings and correct torque values for fasteners.
5. Re-establish timing alignment according to the service manual, prime the fuel system and bleed air from the lines.
6. After installation, check for leaks, verify rail pressure and clear or monitor any engine fault codes.

Installation Recommendations

– Work from the official service manual or factory workshop data for exact timing and torque specs.
– Replace all sealing O-rings and copper crush washers when re-connecting fuel lines.
– Use a torque wrench on pump mounting bolts to the manufacturer’s specified values.
– Prime and bleed the fuel system thoroughly to avoid airlocks.
– Inspect and replace the fuel filter and any damaged fuel lines to prevent premature failure of the new pump.
– After fitment, monitor rail pressure and engine operation; some systems may require fine adjustment or verification with a diagnostic tool to ensure fault-free operation.

Why This Part Most Often Fails

– Contaminated fuel (water, dirt, or varnish) causing accelerated wear of internal components.
– Neglected maintenance such as overdue fuel filter changes leading to abrasive wear.
– Poor lubrication resulting from fuel contamination or long periods of idling.
– Internal mechanical wear of rotors, vanes or bearings after high mileage.
– Fuel leaks or air ingress causing loss of rail pressure and cavitation damage.

Technical Information

• Manufacturer: Siemens VDO
• Model: 2.0 HDi 100 kW (Engine Codes RHR / RHK)
• Product Codes: 5WS40019, 5WS40809
• Additional Numbers: 1920QH, 1920N8, 9658193980, 9688153080

Final Notes

This pump is a precision diesel component. For reliable and long-term operation, use clean diesel fuel, observe recommended service intervals (fuel filter replacement) and follow correct installation and priming procedures. If in doubt about timing or priming steps, seek professional assistance with the appropriate workshop tooling and diagnostic equipment.

This DELPHI injection pump is specifically compatible with the 2.0HDI 100kw RHR engines. Its installation will significantly enhance the fuel system efficiency of your vehicle, providing better power management and smoother operation.

Technical Information

• Manufacturer: DELPHI
• Model: 2.0HDI 100kw RHR
• Product Codes: 9656391680, 9424A000A, 1920LP
• Other Numbers: Information not available

The injection pump plays a crucial role in the fuel injection system, responsible for precisely delivering fuel to the engine. Its proper functioning is essential for optimal performance and fuel efficiency of the engine. This part is recommended for replacement in case of any failure in your current pump or during vehicle performance upgrades.

Technical Information

• Manufacturer: PSA
• Model: CITROEN, PEUGEOT
• Product Codes: 0445010089, 9651844380, 1920FZ
• Additional Numbers: Compatible with several Citroën and Peugeot vehicle models equipped with 1.4 HDI and 1.6 HDI engines.

This pump is designed to provide efficient fuel injection even at high operating pressures, which is crucial for proper combustion and maximum engine performance. While this is a used part, its functionality is verified and confirmed by the experience of many mechanics and vehicle owners who do their own repairs. Many report that installation is straightforward and does not require any special tools beyond standard vehicle maintenance accessories.

No more hours spent searching for the right part. Choose this proven Injection Pump and ensure a smooth ride knowing your engine is in truly good hands. Whether you’re a professional mechanic or repairing the car in your own garage, with this product, you will gain the quality you need and can rely on.