Is the DENSO DCRI300050 compatible with the Vauxhall Astra (J)?

Yes. The DENSO DCRI300050 is a direct replacement diesel injector for the Vauxhall Astra (J) 1.7 CDTi and the other listed applications. Always confirm fitment by engine code or vehicle registration before ordering.

Does the DENSO DCRI300050 require injector coding?

No injector coding is required for the DENSO DCRI300050 on most applications. Always follow the manufacturer's fitting procedure.

Is the DCRI300050 supplied tested?

Yes. Every DENSO DCRI300050 is OEM bench-tested and calibrated to manufacturer tolerances before dispatch.

Is a warranty included with the DCRI300050?

Yes. The DENSO DCRI300050 includes a 12 months warranty as standard, with free UK delivery.

Is an exchange or core return required?

Yes. A £20 refundable core deposit per injector is charged separately at checkout and refunded when your old unit is returned within 30 days, in accordance with our Exchange Policy.

What vehicles use the DCRI300050 injector?

The DCRI300050 injector is compatible with Vauxhall ASTRA (J), Vauxhall ZAFIRA TOURER (C), Chevrolet CRUZE, Chevrolet ORLANDO and other diesel vehicles. Check the compatible vehicles section above for the full list.

What engines use the DCRI300050 injector?

The DCRI300050 injector is used in A17DTS, LKR, LUD engine codes.

What are symptoms of a failing DCRI300050 injector?

Common symptoms of a failing DCRI300050 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 DCRI300050 injector?

A remanufactured DENSO DCRI300050 injector typically costs between £80 and £80. Labour costs vary by vehicle but usually add £100–£250 per injector. All our remanufactured injectors come with a 12-month warranty.

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Need Help Confirming Fitment?

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

Engine Code or Cross Reference

DENSO DCRI300050 Diesel Injector

Name: Remanufactured DENSO Diesel Injector DCRI300050
Brand: DENSO
SKU: DCRI300050
Price: 80.00 GBP
Availability: InStock

DENSO

Part No: DCRI300050

·Trade & Garage Friendly

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In Stock — Ships within 24 hours

The DENSO DCRI300050 diesel injector is a remanufactured common-rail injector for 1.7L CDTi engines. GM/Opel 1.7 CDTi DENSO remanufactured common-rail diesel injector.

£80inc. VAT

(per injector)

+ £20 refundable core deposit per injector — refunded when your old unit is returned within 30 days

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

4 OE References

1 DENSO Reference

Vauxhall 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

Vauxhall / Opel / Chevrolet 1.7 CDTi (A17DTS — Astra J, Zafira Tourer, Cruze) A17DTS

Common symptoms

Hard cold starting or no-start
Rough or lumpy idle with shaking
Misfire or intermittent running on fewer cylinders
Knocking under load, smoke from the exhaust
Limp mode, power loss or stuttering acceleration

Documented failure modes

Injector seal leakage — soot build-up, diesel smell and rough running (a recurring 1.7 CDTi issue)
Fuel contamination or water in the fuel damaging the Denso injectors
Injector-driver electronics faults that log circuit codes without the injector itself being bad

Diagnostic guidance

On this platform injector circuit codes frequently trace to the injector driver/ECU or wiring rather than the injector — test the electrical side before condemning hardware
Inspect injector seals for soot and smell — seal leakage is a documented recurring fault
Check fuel-filter service history and for fuel contamination before fitting replacements
Denso injectors carry an ID code — register the new code after fitting

Fault codes linked to this engine's injectors

P0201 P0202 P0203 P0204 P0300

Fitment note: The 1.7 CDTi family spans several generations (Astra H/J era) with different Denso references — always match the reference etched on the injector body.

Browse every diesel engine we cover →

Why this injector?

Fits the A17DTS engine code used in the Vauxhall Astra (J) and related diesel variants.
DENSO 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 A17DTS engines.
12-month warranty, free UK delivery and a £20 refundable core deposit per injector (refunded when your old unit is returned).

Gold VerifiedVerified technical data

Denso DCRI300050 1.7 CDTi Common Rail Injector (Vauxhall/Opel Astra J, Zafira Tourer, Chevrolet Cruze)

AI Technical Summary

Denso DCRI300050 (Denso 295050-0050, GM OE 55567729) common-rail injector for the GM/Opel 1.7 CDTi (A17DTS / Chevrolet LKR/LUD). Fitted across Astra J, Zafira Tourer C and Chevrolet Cruze/Orlando. GM MDI/Tech2 ID coding required. Remanufactured, calibrated, 12-month warranty. Key symptoms: Rough idle / vibration; Hard starting; Loss of power / limp mode; Black smoke. Common failure modes: Internal wear / high back-leakage; Nozzle coking / poor spray pattern; Water-in-fuel corrosion.

Common Symptoms

Rough idle / vibrationhigh

A leaking or out-of-calibration injector unbalances cylinder fuelling, felt as a shake at idle.

Hard startinghigh

Excess back-leakage bleeds rail/line pressure during cranking, causing long or failed starts.

Loss of power / limp modehigh

Out-of-range delivery or pressure deviation triggers a torque cut and limp home.

Black smokemedium

Poor atomisation or a dribbling nozzle over-fuels the cylinder.

Engine management lightmedium

Cylinder-specific injector, balance or fuel-metering fault codes are logged.

Workshop & Fitting Notes

InstallationWrite the Denso injector ID/QR correction code to the correct cylinder with GM MDI / Tech2 on fitment before road test.
InstallationRenew the copper combustion washer and leak-off seals; torque the clamp/nut to manufacturer spec.
MisdiagnosisRead live back-leakage and per-cylinder contribution data to confirm the weak cylinder before removal.
TestingBench-test across delivery and back-leakage points and verify spray pattern before refit.
WarningConfirm fitment by OE number and engine code before ordering; injector sub-variants are not always interchangeable.

Frequently Asked Questions

What is injector DCRI300050?+

DCRI300050 is a DENSO common rail solenoid injector diesel injector for the GM / Opel / Chevrolet 1.7 CDTi (A17DTS). It is supplied remanufactured, bench-tested and calibrated to OEM specification.

Which vehicles use DCRI300050?+

It is fitted to the GM / Opel / Chevrolet 1.7 CDTi (A17DTS) — including Vauxhall/Opel Astra (J) 1.7 CDTi (A17DTS); Vauxhall/Opel Zafira Tourer (C) 1.7 CDTi (A17DTS); Chevrolet Cruze 1.7 VCDi (LKR/LUD); Chevrolet Orlando 1.7 VCDi (LKR/LUD). Confirm fitment by OE number and engine code.

What type of injector is DCRI300050?+

It is a DENSO Common Rail Solenoid Injector. Always confirm the OEM markings on the injector body before fitting.

Does DCRI300050 need coding when fitted?+

Yes — the Denso injector ID/QR correction code must be programmed to the correct cylinder using GM MDI/Tech2 on fitment.

What are the symptoms of a failing DCRI300050?+

Common signs are rough idle and vibration, hard starting, power loss or limp mode, black smoke and an engine-management light.

What causes these injectors to fail?+

Most failures come from poor fuel filtration, contamination and water in the fuel leading to wear, high back-leakage and nozzle coking. Fix the cause before fitting replacements.

Is a remanufactured DCRI300050 as good as new?+

A properly remanufactured injector is stripped, fitted with new wear parts, reassembled and recalibrated on a common-rail test bench to OEM tolerances, then supplied with a warranty.

Should I replace one injector or the full set?+

Replace the confirmed faulty injector first. On high-mileage engines fitting a matched set reduces the chance of a repeat fault, but it is not mandatory if the others test within spec.

Do you bench-test the injector before dispatch?+

Yes. Every unit is tested for delivery, back-leakage and spray pattern on a calibrated common-rail tester before it leaves us.

Is delivery and warranty included?+

Yes — the price includes free UK delivery and a 12-month warranty.

Does DCRI300050 need coding?+

Yes — Denso common-rail injectors carry an ID/QR correction code that must be programmed to the correct cylinder with GM MDI/Tech2 on fitment.

Which vehicles use DCRI300050?+

The GM/Opel 1.7 CDTi (A17DTS) in Astra J and Zafira Tourer C, and the Chevrolet 1.7 VCDi (LKR/LUD) in Cruze/Orlando. Confirm GM OE 55567729 before ordering.

Related Injectors

295050-0050 55567729

Related Engines

A17DTSLKR

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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 DENSO Injector

Compatible with Vauxhall, Chevrolet engines including A17DTS, LKR, LUD.

Make	Model	Engine	Years
Vauxhall	Astra (J)	1.7 CDTi (A17DTS)	2009–2015
Vauxhall	Zafira Tourer (C)	1.7 CDTi (A17DTS)	2011–2016
Chevrolet	Cruze	1.7 VCDi (LKR/LUD)	2011–2015
Chevrolet	Orlando	1.7 VCDi (LKR)	2011–2015

Vehicles Using This Injector

Vauxhall Astra (J) injector Vauxhall Zafira Tourer (C) injector Chevrolet Cruze injector Chevrolet Orlando injector

Compatible Engines

The DCRI300050 injector is compatible with the following engines:

A17DTS–1.7L CDTi LKR–1.7L CDTi LUD–1.7L CDTi

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.

Chevrolet Cruze 1.7 VCDi

Chevrolet Orlando 1.7 VCDi

Vauxhall Astra (J) 1.7 CDTi

Vauxhall Zafira Tourer (C) 1.7 CDTi

Product Description

The DENSO DCRI300050 diesel injector is a remanufactured common-rail injector for 1.7L CDTi engines.

GM/Opel 1.7 CDTi DENSO remanufactured common-rail diesel injector.

Common engine code: A17DTS.

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 injection values after installation
Ensure system cleanliness before fitting
Use calibrated test equipment for verification
Check engine-specific torque values before installation

Recommended Injector Coding

No injector coding is required for the DENSO 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

A17DTS LKR LUD

Common Symptoms of a Failed DCRI300050 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 team£20 refundable core deposit per injector

DCRI300050 Price Statistics

Average Price

£80.00

inc. VAT

Price Range

£80–£80

inc. VAT

Stock

0/0

In Stock

Prices based on 0 listing for the DCRI300050 injector. All prices include VAT.

Compatible Vehicles for DCRI300050

DCRI300050 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.