Is the Zexel 48-4391 compatible with the Nissan Almera II (N16)?

Yes. The Zexel 48-4391 is a direct replacement diesel injector for the Nissan Almera II (N16) 2.2 Di and the other listed applications. Always confirm fitment by engine code or vehicle registration before ordering.

Does the Zexel 48-4391 require injector coding?

No injector coding is required for the Zexel 48-4391 on most applications. Always follow the manufacturer's fitting procedure.

Is the 48-4391 supplied tested?

Yes. Every Zexel 48-4391 is OEM bench-tested and calibrated to manufacturer tolerances before dispatch.

Is a warranty included with the 48-4391?

Yes. The Zexel 48-4391 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 Zexel 48-4391. The price shown is the full price — nothing further to pay or return.

What vehicles use the 484391 injector?

The 484391 injector is compatible with Nissan ALMERA II (N16), Nissan ALMERA II (N16), Nissan ALMERA TINO (V10) and other diesel vehicles. Check the compatible vehicles section above for the full list.

What engines use the 484391 injector?

The 484391 injector is used in YD22DDTI engine codes.

What are symptoms of a failing 484391 injector?

Common symptoms of a failing 484391 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 484391 injector?

A remanufactured Zexel 484391 injector typically costs between £60 and £60. 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

Zexel 48-4391 Diesel Injector

Name: Remanufactured Zexel Diesel Injector 484391
Brand: Zexel
SKU: 484391
Price: 60.00 GBP
Availability: InStock

Zexel

Part No: 48-4391

·Trade & Garage Friendly

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In Stock — Ships within 24 hours

The Zexel 48-4391 diesel injector is a remanufactured common-rail injector for 2.2L Di/dCi engines. Remanufactured Zexel common rail diesel injector for Nissan 2.2 Di / dCi YD22DDTi engines.

£60inc. 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.

1 Compatible Engine Code

2 OE References

1 Zexel Reference

Nissan 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.

Browse every diesel engine we cover →

Why this injector?

Fits the YD22DDTI engine code used in the Nissan Almera II (N16) and related diesel variants.
Zexel 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 YD22DDTI engines.
12-month warranty, free UK delivery and no core exchange required.

Gold VerifiedVerified technical data

Zexel 48-4391 2.2 Di/dCi Diesel Injector (Nissan Almera, Almera Tino, Primera YD22DDTi)

AI Technical Summary

Zexel 48-4391 (484391 / Z484391) injector for the Nissan 2.2 Di/dCi YD22DDTi in the Almera II, Almera Tino and Primera. Verify the injector setup in Nissan Consult on fitment. 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

InstallationVerify the injector setup requirement in Nissan Consult; many early YD22 Di applications require no electronic injector coding.
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 48-4391?+

48-4391 is a Zexel diesel injector diesel injector for the Nissan 2.2 Di / dCi (YD22DDTi). It is supplied remanufactured, bench-tested and calibrated to OEM specification.

Which vehicles use 48-4391?+

It is fitted to the Nissan 2.2 Di / dCi (YD22DDTi) — including Nissan Almera II (N16) 2.2 Di / dCi (YD22DDTi); Nissan Almera Tino (V10) 2.2 Di / dCi (YD22DDTi); Nissan Primera (P11/P12) 2.2 Di / dCi (YD22DDTi); Nissan X-Trail (T30) 2.2 dCi (YD22DDTi). Confirm fitment by OE number and engine code.

What type of injector is 48-4391?+

It is a Zexel Diesel Injector. Always confirm the OEM markings on the injector body before fitting.

Does 48-4391 need coding when fitted?+

Verify in Nissan Consult — many early YD22 Di applications run without electronic injector coding. Confirm for your specific build before road test.

What are the symptoms of a failing 48-4391?+

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 48-4391 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.

Which Nissan models use the 48-4391 injector?+

The Nissan 2.2 Di/dCi YD22DDTi in the Almera II (N16), Almera Tino, Primera and X-Trail (T30). Confirm the YD22DDTi engine code before ordering.

Does the Zexel 48-4391 need coding?+

Verify in Nissan Consult — many early YD22 Di applications run without electronic injector coding. Always renew the copper washer and bleed the system on fitment.

Related Injectors

484391 Z484391

Related Engines

YD22DDTi

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1309-Z-48-4391

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Z484391

£60 inc. VAT

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 Zexel Injector

Compatible with Nissan engines including YD22DDTi.

Make	Model	Engine	Years
Nissan	Almera II (N16)	2.2 Di (YD22DDTi)	2000–2003
Nissan	Almera II (N16)	2.2 dCi (YD22DDTi)	2003–2006
Nissan	Almera Tino (V10)	2.2 dCi (YD22DDTi)	2003–2006

Vehicles Using This Injector

Nissan Almera II (N16) injector Nissan Almera Tino (V10) injector

Compatible Engines

The 484391 injector is compatible with the following engines:

YD22DDTi–2.2L Di/dCi

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.

Nissan Almera II (N16) 2.2 Di

Nissan Almera II (N16) 2.2 dCi

Nissan Almera Tino (V10) 2.2 dCi

Product Description

The Zexel 48-4391 diesel injector is a remanufactured common-rail injector for 2.2L Di/dCi engines.

Remanufactured Zexel common rail diesel injector for Nissan 2.2 Di / dCi YD22DDTi engines.

Professionally tested and calibrated to OEM specification.

Includes: OEM Tested, 12 Month Warranty, Free UK Delivery..

Common engine code: YD22DDTi.

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

Professional injector coding may be required after installation
Torque to manufacturer specification
Use calibrated test equipment for verification
Check engine-specific torque values before installation

Recommended Injector Coding

No injector coding is required for the Zexel 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

YD22DDTI

Common Symptoms of a Failed 484391 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

484391 Price Statistics

Average Price

£60.00

inc. VAT

Price Range

£60–£60

inc. VAT

Stock

0/0

In Stock

Prices based on 0 listing for the 484391 injector. All prices include VAT.

Compatible Vehicles for 484391

484391 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.

Nissan ALMERA II (N16)Nissan ALMERA II (N16)Nissan ALMERA TINO (V10)