Which engines use the DENSO DCRI107850 injector?

DCRI107850 is verified for the 2.0L platform, covering engine codes RF5C and RF7J. Confirm the engine code on your V5C before ordering.

Which vehicles does DCRI107850 fit?

This family has 2 verified fitments across Mazda — the full registry-verified list is on this page.

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

DCRI107850 cross-references 095000-5870, 095000-7850, 095000-8830, 095000-5030, 0950005870 and 0950007850 among others. 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 DCRI107850 Diesel Injector

Name: DENSO DCRI107850 Remanufactured Diesel Injector
Brand: DENSO
SKU: DCRI107850
Price: 170.00 GBP
Availability: InStock

2.0L · DCRI107850

Remanufactured DENSO DCRI107850 (095000-5870 / 095000-7850 / 095000-8830, legacy 095000-5030) common-rail diesel injector for the Mazda 2.0 DI engine (OE RF5C13H50 / RF5C13H50A/B/C, RFY013H50 / RFY013H50A/B). Fits Mazda 6 (GG saloon / GY estate) 2.0 DI 2002–2007 (RF5C / RF7J, 121–136 hp) and Mazda MPV II (LW) 2.0 DI 2002–2006. Note: the 143 hp high-output RF7J (Mazda 5, Mazda 6 GH 2.0 MZR-CD) uses the different DCRI107860 / RF8G-13-H50 injector — not this unit. Fully tested and calibrated to OEM specification with 12 months warranty.

Engine codes

OE / cross-refs

Vehicle fitments

12mo

Warranty

Common failure symptoms

On the 2.0L platform, a failing DENSO DCRI107850 injector typically presents as: hard cold starting; rough idle; black smoke under acceleration; misfire on individual cylinders; fuel dilution of engine oil on failed regenerations.

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 leak-back beyond specification; nozzle wear causing over-fuelling and oil dilution; seat washer combustion leaks.

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

How Workshops Diagnose DCRI107850 Faults

Check the oil level for diesel dilution — a documented consequence of worn injectors on this engine. Compare leak-off volumes across all four injectors before ordering. Denso compensation codes must be registered via the manufacturer diagnostic procedure after fitting.

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 DCRI107850 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 DCRI107850 trusted family covers 2 verified vehicle fitments across 1 make: Mazda. Every fitment listed on this page is registry-verified — no scraped or assumed applications.

OE & Cross-References

DCRI107850 supersedes or cross-references 15 further OE numbers, including 095000-5870, 095000-7850, 095000-8830, 095000-5030, 0950005870, 0950007850, 0950008830 and 0950005030. 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.