115084 Bosch Piezo Diesel Fuel Injector – Remanufactured

115084 Bosch piezo diesel fuel injector: direct product answer

The 115084 Bosch piezo diesel fuel injector is a Rayfuel remanufactured Bosch-system piezo common rail injector supplied for selected French vehicle applications Renault（Espace-Laguna 2.0 DCI-Koleos）, Opel Vivaro diesel applications. This listing contains one injector under one independent OE number. Use the complete number on the removed unit as the main identification reference, then verify the engine code, connector, return connection and nozzle profile before purchase.

Rayfuel is the product brand for this listing. Bosch and all vehicle or engine names identify the diesel injection system or intended application only. The product is not described as a new genuine Bosch boxed injector. Browse related parts in the Bosch common rail injector category.

Product identification

• OE / MPN: 115084
• Product type: Bosch-system piezo common rail diesel fuel injector
• Condition: Remanufactured
• Application: selected French vehicle applications Renault（Espace-Laguna 2.0 DCI-Koleos）, Opel Vivaro diesel applications
• Quantity: 1 injector
• Warranty: 1 month
• Product brand: Rayfuel

What does OE 115084 identify?

OE 115084 identifies the specific reference used for this injector listing. It should be treated as a single part number, not combined with numbers from other products. Spacing, punctuation and a revision suffix can change how a catalog displays a reference, so compare the full marking character by character.

Fitment and compatibility

This injector is prepared for selected French vehicle applications Renault（Espace-Laguna 2.0 DCI-Koleos）, Opel Vivaro diesel applications. Exact fitment can still vary by VIN, engine code, model year, power rating, emissions level and control-system revision. Vehicle name alone is not enough. A diesel specialist should confirm the OE number against a reliable catalog or compare clear photographs of the old injector.

Check the electrical connector, high-pressure inlet, leak-off fitting, hold-down area, overall body length and nozzle end. A similar-looking piezo injector may have different calibration or electrical characteristics and must not be substituted solely because the housing looks alike.

How a Bosch-system piezo injector works

A common rail injector receives high-pressure fuel from the rail and meters it into the combustion chamber. A piezo actuator allows rapid and precise control of injection events. Bosch explains that common rail systems separate pressure generation from injection and that the injector is controlled electrically; see the official Bosch diesel-systems overview.

Correct operation supports starting, stable idle, balanced cylinder contribution and controlled combustion. Results also depend on clean fuel, adequate rail pressure, healthy wiring, sound compression and the condition of the pump, filter, rail and the other injectors.

Remanufactured condition and checking

A remanufactured injector is a previously used unit that has been inspected and serviced for reuse. Exterior cleaning by itself is not proof of internal repair or calibration. Installation decisions should rely on the stated condition, part-number match and appropriate diesel test information rather than appearance alone.

Hard starting, rough idle, smoke, abnormal noise and excessive return flow can justify testing, but they do not prove injector failure. Diagnose fuel quality, rail pressure, wiring and engine condition before replacement.

Installation and cleanliness

Installation should be completed by a qualified diesel technician. Keep the injector and every opened fuel connection protected from dirt. Inspect related pipes and fittings, renew specified seals, follow the correct torque sequence, prime the fuel system and perform a leak check. If the vehicle requires an injector compensation or trim code, follow the manufacturer service procedure.

Frequently asked questions

Is 115084 supplied as one injector?
Yes. The quantity in this listing is one remanufactured injector.

Is this a new genuine Bosch boxed part?
No. Rayfuel is the listing brand and the condition is remanufactured. Bosch identifies the injection-system family.

Can fitment be confirmed only from the vehicle model?
No. Confirm the complete OE number, engine details and old-part photographs.

What should be checked before installation?
Check fuel cleanliness, rail pressure, wiring, connector shape, return fitting, seals and the coding procedure required by the vehicle.

Before ordering

Please confirm OE number, engine model or old part photos before ordering. If any marking is unclear, use the Rayfuel contact page to send the full number and clear photographs for comparison. This step is especially important when several visually similar piezo injectors are used in the same engine family.