1.6L CDTi · Remanufactured
Remanufactured Denso DCRI300770 diesel injector for Vauxhall/Opel 1.6 CDTi applications. Direct replacement for Vauxhall Astra, Insignia, Mokka, Zafira and Opel equivalents with B16DTN and B16DTJ engines. Cross-references 2950500770, HU2950500770, 55570012, 95521531. 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.
B16DTN, B16DTJ
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 appear together, suspect the injector before peripherals — a comparative leak-off test isolates the failed unit without tear-down.
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.
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.
Each remanufactured DCRI300770 is fully stripped, ultrasonically cleaned and inspected; worn components are replaced with OE-grade parts. The rebuilt unit is calibrated on a common-rail test bench against the manufacturer's specification — delivery, back-leak and response verified — and despatched with a 12-month parts warranty and its calibration data on file.
The DCRI300770 trusted family covers 4 verified vehicle fitments across 1 makes: Vauxhall. Every fitment listed is registry-verified.
DCRI300770 cross-references 6 further OE numbers, including 2950500770, HU2950500770, 55570012, 55570012FB, 95521531 and 821035. Always match the reference etched on your failed unit's body.

UK diesel injector specialists supplying OEM tested and calibrated remanufactured injectors. Trusted by garages and mechanics nationwide with 12-month warranty on every part.