Which engines use the Denso 16600-5X30A injector?

16600-5X30A is verified for the 2.5L YD25DDTi platform, covering engine code YD25DDTi. Confirm the engine code on your V5C before ordering.

Which vehicles does 16600-5X30A fit?

This family has 3 verified fitments across Nissan — the full registry-verified list is on this page.

My injector is etched with a different number — is it the same part?

16600-5X30A cross-references 295050-1050, 2950501050 and DCRI301050. If your etched number appears in this family's reference list it is a verified equivalent; if not, send us a photo of the etching and we will confirm before you order.

Do I need to code the replacement injector to the ECU?

Yes on common-rail diesels. Every injector ships with an individual calibration code that must be written to the ECU after fitting, following the manufacturer procedure — without it the engine runs on default trims and can log cylinder-balance faults.

How is each injector tested before despatch?

Every unit is bench-calibrated against the manufacturer specification — delivery, back-leak and response verified — and despatched with a 12-month parts warranty and its calibration data retained on file.

Trusted FamilyDensoRemanufactured

Denso 16600-5X30A Diesel Injector

Name: Denso 16600-5X30A Remanufactured Diesel Injector
Brand: Denso
SKU: 16600-5X30A
Price: 190.00 GBP
Availability: InStock

2.5L YD25DDTi · 16600-5X30A

2.5L YD25DDTi Remanufactured Common Rail Injector

Engine codes

OE / cross-refs

Vehicle fitments

12mo

Warranty

Common failure symptoms

On the 2.5L YD25DDTi platform, a failing Denso 16600-5X30A injector typically presents as: hard starting or extended cranking; rough or uneven idle; loss of power under load; excess smoke from the exhaust; cylinder misfire or contribution fault codes.

When two or more of these appear together, suspect the injector before peripheral systems — a comparative leak-off test and live-data cylinder-balance review will isolate the failed unit without tear-down.

When two or more symptoms appear together, suspect the injector before peripherals (EGR, glow plugs, turbo). A live-data leak-off test on each cylinder is the fastest route to the failed unit.

What Causes These Injectors To Fail

The documented failure modes on this platform are: injector back-leak beyond specification; nozzle wear degrading the spray pattern; combustion gas leaks past the injector seat washer.

Internal wear cannot be repaired in situ — once delivery drifts outside calibration, remanufacture or replacement is the reliable fix.

How Workshops Diagnose 16600-5X30A Faults

Run a comparative leak-off (back-leak) test across all injectors before condemning a single unit. Compare requested vs actual rail pressure in live data at idle and under load. Inspect injector connectors and wiring before replacing hardware.

Never condemn a common-rail injector on a fault code alone — codes identify the circuit or cylinder, while leak-off volumes and correction values identify the component.

How Every Unit Is Tested Before Despatch

Each remanufactured 16600-5X30A is fully stripped, ultrasonically cleaned and inspected; worn components are replaced with OE-grade parts. The rebuilt unit is then calibrated on a common-rail test bench against the manufacturer's specification sheet — delivery, back-leak and response are all verified before the injector is sealed and despatched with its calibration data on file.

Every unit carries a 12-month parts warranty and free UK delivery.

Vehicle Coverage At A Glance

The 16600-5X30A trusted family covers 3 verified vehicle fitments across 1 make: Nissan. Every fitment listed on this page is registry-verified — no scraped or assumed applications.

OE & Cross-References

16600-5X30A supersedes or cross-references 3 further OE numbers, including 295050-1050, 2950501050 and DCRI301050. Always match the reference etched on your failed unit's body — cross-references within a family are verified equivalents, but etched numbers remain the source of truth.