Frequently asked questions
About this category
The 1.6 CDTI 120 HP diesel engine, found in models from Opel, Vauxhall, and other European brands, demands high-precision fuel delivery. This category gathers reconditioned injectors designed to restore original performance without the expense of new OEM parts. Whether you're a professional mechanic or a hands-on car owner, you’ll find solutions here that match your engine’s exact specifications, including compatible codes and references.
Our range is built by a European wholesaler specializing in exchange-standard components, ensuring consistent quality across remanufactured injectors. Each piece undergoes rigorous testing for spray pattern, leakage, and electrical integrity before being listed. The catalog is structured to simplify sourcing, with direct compatibility links to vehicle models and engine codes, eliminating guesswork for buyers.
Professional uses by trade
Professionals and enthusiasts use these injectors for different purposes: restoring a worn engine, replacing a faulty unit, or maintaining a fleet. The approach varies by role, but the goal remains the same—reliable, cost-effective fuel delivery for 1.6 CDTI 120 HP diesel engines.
- Le garagiste independant : Replace a failing injector in a customer’s Opel Astra K to resolve misfires and restore smooth idling without overcharging for OEM parts.
- L'automobiliste depanne : Swap a faulty injector in a broken-down Vauxhall Insignia to get the car running again before a full service is possible.
- Le passionne qui fait lui-meme : Install a reconditioned injector in a project Astra H to avoid the high cost of new OEM components while ensuring reliable performance.
- Der deutsche Kaeufer (DACH) : Order a remanufactured injector for a 1.6 CDTI engine in a used Opel Zafira to meet local emissions standards without compromising on quality.
- Le garagiste independant : Use bulk-packaged injectors for fleet maintenance, reducing downtime and keeping repair costs predictable for business clients.
- L'automobiliste depanne : Source a direct-fit injector for a 2012 Opel Meriva to avoid dealership markup while ensuring compatibility with the engine’s ECU.
- Der deutsche Kaeufer (DACH) : Purchase a calibrated injector for a 1.6 CDTI-powered Opel Corsa to address rough starts and improve fuel economy in daily driving.
Range comparison
Below, you’ll find the two reconditioned injector models that cover the 1.6 CDTI 120 HP diesel engine range. Each is tested for performance and listed with its exact fitment details.
| Range | Use | Format |
|---|---|---|
| Injector DENSO 55570012 | fits Opel Astra K 1.6 CDTI 120 HP | |
| Injector DENSO 295050-0770 | fits Vauxhall Insignia 1.6 CDTI 120 HP |
How to choose
Selecting the right injector requires attention to compatibility, condition, and packaging. These criteria ensure the part will perform reliably in your engine or your customer’s vehicle.
- Verify the engine code and vehicle model to confirm the injector’s fitment before ordering, as mismatches can cause irreversible damage.
- Prefer injectors with a visible remanufacturing stamp or serial number, indicating they’ve undergone professional testing and calibration.
- Check the packaging for protective seals and anti-static bags, which preserve the injector’s condition during transit and storage.
- Opt for bulk packaging if you’re a professional, as it reduces per-unit costs and simplifies inventory management for workshops.
- Inspect the injector’s electrical connector for corrosion or damage, as faulty connections can trigger error codes even after installation.
- Confirm the injector’s spray pattern and opening pressure match OEM specifications, ensuring consistent fuel delivery across all cylinders.
- For DIY users, choose injectors with clear installation guides or video references to avoid common mistakes during replacement.
Storage & logistics
Reconditioned injectors must be stored in a dry, temperature-controlled environment to prevent moisture damage or corrosion. Bulk shipments should be kept in their original packaging until use, with desiccant packs added if the storage area lacks humidity control. For garages, a dedicated shelf or cabinet away from solvents and cleaning agents preserves the injectors’ integrity. Always handle injectors by the body, avoiding contact with the nozzle or electrical terminals to prevent contamination or misalignment.
Since 2026, our team has processed thousands of injectors for 1.6 CDTI engines, refining our selection to only those meeting our strict flow and spray tests. We don’t just sell parts—we deliver reliability, so your repairs last.— autoKUR team
Related categories
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Useful references
For regulatory and sector references, see Reglement (UE) 461/2010 — pieces de rechange et garantie constructeur.


