Is the Delphi 28657626 compatible with the Peugeot 508?

Yes. The Delphi 28657626 is a direct replacement diesel injector for the Peugeot 508 2.2 BlueHDi and the other listed applications. Always confirm fitment by engine code or vehicle registration before ordering.

Does the Delphi 28657626 require injector coding?

No injector coding is required for the Delphi 28657626 on most applications. Always follow the manufacturer's fitting procedure.

Is the 28657626 supplied tested?

Yes. Every Delphi 28657626 is OEM bench-tested and calibrated to manufacturer tolerances before dispatch.

Is a warranty included with the 28657626?

Yes. The Delphi 28657626 includes a 12 months warranty as standard, with free UK delivery.

Is an exchange or core return required?

No core exchange is required for the Delphi 28657626. The price shown is the full price — nothing further to pay or return.

What vehicles use the 28657626 injector?

The 28657626 injector is compatible with Peugeot 508, Citroen C5, DS DS5 and other diesel vehicles. Check the compatible vehicles section above for the full list.

What engines use the 28657626 injector?

The 28657626 injector is used in DW12RUD, DW12RUE, DW12RUC engine codes.

What are symptoms of a failing 28657626 injector?

Common symptoms of a failing 28657626 injector include hard starting, rough idle, excessive black or white smoke, engine misfires, poor fuel economy, and loss of power under load. A professional leak-off test can confirm whether the injector needs replacing.

How much does it cost to replace the 28657626 injector?

A remanufactured Delphi 28657626 injector typically costs between £150 and £150. Labour costs vary by vehicle but usually add £100–£250 per injector. All our remanufactured injectors come with a 12-month warranty.

Remanufactured Delphi 28657626 Fiat/Iveco 2.3/3.0 JTD diesel injector with box

Zoom1 / 4In Stock

Need Help Confirming Fitment?

Not sure this injector fits your vehicle? Check using your registration number before ordering.

Engine Code or Cross Reference

Delphi 28657626 Diesel Injector

DELPHI

Part No: 28657626

·Trade & Garage Friendly

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The Delphi 28657626 diesel injector is a remanufactured common-rail injector for 2.2L BlueHDi engines. Remanufactured Delphi 28657626 diesel injector for PSA 2.2 BlueHDi Euro 6 applications.

£150inc. VAT

(per injector)

All prices are shown in GBP (£). International customers are securely charged in GBP via Stripe.

Save 38% vs OEM price

Professionally remanufactured to OEM standards

Ordering a single injector is standard practice.

Need multiple injectors? Simply increase the quantity above.

Every order includes a 12-month workshop warranty, OEM bench-calibration before despatch.

Most 4-cylinder engines use 4 injectors — replace only what your diagnosis confirms.

In stockTested & calibrated12-month warranty

12-Month Warranty

Included on every remanufactured injector. UK-based support if you ever need it.

Tested Before Dispatch

Flow-tested and calibrated on OEM-grade rigs. Test report on file for every unit.

Free UK Delivery

Mainland tracked dispatch. Order before 2pm for same-working-day pick-up.

Trade buyers: VAT receipt included · Account terms on request · Trusted by UK garages & diesel specialists.

3 Compatible Engine Codes

Peugeot OEM Replacement

OEM Bench Tested

Why Buy From Us

OEM Bench Tested & Calibrated

12 Month Warranty

Free UK Delivery

UK Diesel Injector Specialists

Technical Support Available

Not sure this is the right injector? Call us on 020 3355 6581

Free UK Delivery Same-Day Dispatch

FREE UK Delivery

International Delivery — flat £50 per order

One injector or multiple injectors

Ships Worldwide

FREE UK Delivery

Flat £50 International Shipping

Royal Mail Tracked
DPD International
Secure Packaging
Tracking Number Included
12 Month Warranty

Need more later? We keep stock available for repeat orders.

Engine Intelligence

Diesel Engine

Common symptoms

Fitment note: Always confirm compatibility using registration lookup or part number before ordering.

Why this injector?

Fits the DW12RUD engine code used in the Peugeot 508 and related diesel variants.
Delphi diesel injector — flow-tested and calibrated on common-rail equipment before despatch.
Commonly specified when investigating rough idle, injector knock, smoke or poor fuel economy on DW12RUD engines.
12-month warranty, free UK delivery and no core exchange required.

Gold VerifiedVerified technical data

Delphi 28657626 2.2 BlueHDi (DW12RU / 4HA / 4H03) Common Rail Injector (Peugeot Boxer / Citroen Jumper / Fiat Ducato)

AI Technical Summary

Delphi common-rail injector for the PSA/Stellantis 2.2 BlueHDi (DW12RU family, engine 4HA/DW12RUE and 4H03/DW12RUD) fitted to the Peugeot Boxer, Citroen Jumper/Relay and Fiat Ducato from 2019. OE 9824388280 (cross 1637131480 / 28492677). Replacement injectors must be coded to the ECU after fitting. Failures are driven by poor fuel filtration, contamination and back-leakage wear. Key symptoms: Rough idle / vibration; Hard starting; Loss of power / limp mode; Black smoke. Common failure modes: Internal wear / high back-leakage; Water-in-fuel corrosion; Nozzle coking.

Common Symptoms

Rough idle / vibrationhigh

A leaking injector unbalances cylinder fuelling on the 2.2 BlueHDi.

Hard startinghigh

Excess back-leakage drops cranking rail pressure.

Loss of power / limp modehigh

Out-of-range delivery or rail-pressure deviation cuts power.

Black smokemedium

Poor atomisation over-fuels the cylinder.

Engine management lightmedium

Cylinder-specific injector or fuel-metering codes.

Workshop & Fitting Notes

InstallationCode the injector correction value to the correct cylinder with a PSA/Delphi-capable diagnostic tool before road test.
InstallationRenew the combustion seal and clamp hardware; torque to spec.
MisdiagnosisRead live back-leakage data to find the weak cylinder before removal.
WarningFix contamination (filter/water/debris) first; the 2.2 BlueHDi is sensitive to fuel quality.
TestingBench-test on a Delphi-capable CR tester across delivery and back-leakage points before refit.

Frequently Asked Questions

What is Delphi injector 28657626?+

A Delphi common-rail diesel injector for the PSA/Stellantis 2.2 BlueHDi (DW12RU) engine. OE 9824388280.

Which vehicles use 28657626?+

Peugeot Boxer, Citroen Jumper/Relay and Fiat Ducato with the 2.2 BlueHDi engine, from 2019.

Is it solenoid or piezo?+

It is a Delphi solenoid common-rail injector.

Does 28657626 need coding?+

Yes - it must be coded to the vehicle ECU with a PSA/Delphi-capable diagnostic tool after fitting.

What are the OE part numbers?+

PSA 9824388280 references Delphi 28657626 (cross 1637131480 / 28492677).

Which engine codes does it fit?+

The 2.2 BlueHDi DW12RU family - 4HA (DW12RUE, BlueHDi 120) and 4H03 (DW12RUD, BlueHDi 140); confirm by VIN.

What are the symptoms of failure?+

Rough idle, vibration, hard starting, black smoke, power loss/limp mode and an EML.

Why does my Boxer or Ducato run rough?+

A worn or leaking injector unbalances fuelling; read live back-leakage data and bench-test the weak cylinder.

What causes these injectors to fail?+

Poor fuel filtration, contamination and back-leakage wear - fix the cause first.

Does a remanufactured 28657626 perform like new?+

A properly remanufactured injector is bench-tested and recalibrated to the Delphi plan, then coded on fitment.

Related Injectors

9824388280 1637131480

Related Engines

4HA (DW12RUE)4H03 (DW12RUD)

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Remanufacturing Process

Injector fully dismantled

Internal components cleaned and inspected

Worn parts replaced

Reassembled and calibrated

Tested before dispatch

See how our injectors are rebuilt step-by-step in our 3D remanufacturing process video.

Vehicles Compatible With This Delphi Injector

Compatible with Peugeot, Citroen, DS engines including DW12RUD, DW12RUE, DW12RUC.

Make	Model	Engine	Years
Peugeot	508	2.2 BlueHDi 200hp (DW12RUD)	2014–2018
Citroen	C5	2.2 BlueHDi 200hp (DW12RUE)	2014–2017
DS	DS5	2.2 BlueHDi 180hp (DW12RUC)	2014–2018

Vehicles Using This Injector

Peugeot 508 injector Citroen C5 injector DS DS5 injector

Compatible Engines

The 28657626 injector is compatible with the following engines:

DW12RUD–2.2L BlueHDi DW12RUE–2.2L BlueHDi DW12RUC–2.2L BlueHDi

Also known as

This injector is sold and listed under the references below. Tap any number to copy it — every reference refers to this same product.

All references resolve to this canonical product page. Always confirm exact fitment before ordering.

Compatible Vehicles

This injector fits the following vehicles. Always confirm exact fitment by engine code or registration before ordering.

Citroen C5 2.2 BlueHDi

DS DS5 2.2 BlueHDi

Peugeot 508 2.2 BlueHDi

Product Description

The Delphi 28657626 diesel injector is a remanufactured common-rail injector for 2.2L BlueHDi engines.

Remanufactured Delphi 28657626 diesel injector for PSA 2.2 BlueHDi Euro 6 applications.

Direct replacement for Peugeot and Citroen models with DW12RUD, DW12RUE and DW12RUC engines.

Cross-references 28492677, 9824388280, 1637131480.

Not interchangeable with older DW12 BTED4 generation injectors.

OEM-tested and calibrated with full flow and leak-back verification on CR318 PRO test bench.

Includes 12-month unlimited-mileage warranty.

Supplied as an exchange unit — return your old injector within 21 days..

Common engine code: DW12RUD.

Commonly replaced when investigating rough idle, injector knock, excess smoke or poor fuel economy.

Each injector is tested to OEM standards with a 12-month warranty and free UK delivery.

Workshop Information

Installation Notes

Check injector coding after installation
Ensure fuel system is properly primed
Use calibrated test equipment for verification
Check engine-specific torque values before installation

Recommended Injector Coding

No injector coding is required for the Delphi unit on most applications — follow the manufacturer fitting procedure.

Replacement Advice

Always renew the copper washers / seals and bleed the fuel system before first start. Replace only the injectors your diagnosis confirms and torque fasteners to the manufacturer's published values.

Professional Installation

We recommend installation by a suitably equipped diesel specialist using calibrated test equipment to verify the fuel system after fitting.

Common Engines Using This Injector

DW12RUC DW12RUD DW12RUE

Common Symptoms of a Failed 28657626 Injector

Hard starting Rough idle Excessive smoke Poor fuel economy Engine misfires Loss of power under load

If your vehicle shows these symptoms, replacing the diesel injector may restore engine performance. A leak-off test can confirm the diagnosis.

Testing & Warranty

All remanufactured injectors are tested using OEM-grade diagnostic equipment to ensure fuel pressure and spray pattern meet manufacturer specifications.

OEM Test Bench Calibration

Flow-tested on Bosch EPS 200 series bench to verify fuel delivery rates at all operating pressures.

Leak-Off Testing

Each injector is tested for return flow to ensure no excess fuel is wasted back to the tank.

Solenoid Calibration

Electrical response time verified to ensure precise injection timing and quantity.

12-Month Warranty

Full replacement or refund covering manufacturing defects under normal use. No quibble.

IMA code includedProfessional injector coding may be required after installationUK-based support teamNo core exchange required

28657626 Price Statistics

Average Price

£150.00

inc. VAT

Price Range

£150–£150

inc. VAT

Stock

1/1

In Stock

Prices based on 1 listing for the 28657626 injector. All prices include VAT.

Compatible Vehicles for 28657626

28657626 is OE-fit on the vehicles below. Always confirm the engine code on your V5C and the OE marking on the failed unit before ordering — sister part numbers in this family can look identical but carry a different calibration map.

Peugeot 508 Citroen C5 DS DS5