186A7000 Diesel Injectors
Compatible with Alfa Romeo 147, Alfa Romeo 156, Alfa Romeo 159, and 11 more
- OEM Tested & Calibrated
- 12-Month Warranty
- Free UK Delivery
Select the correct injector for your 186A7000 engine below
Fits Alfa Romeo 147, Alfa Romeo 156, Alfa Romeo 159, Alfa Romeo GT and more
Top injectors for 186A7000
Compatible Injectors for 186A7000
- OEM Tested
- 12-Month Warranty
- Free UK Delivery
Common problems solved by these injectors
About the 186A7000 engine
The 186A7000 is a fiat / opel 1.9 jtd / cdti common rail diesel engine. This engine uses Bosch diesel injectors.
How Diesel Injectors Are Remanufactured
Watch our 3D walkthrough of the diesel injector remanufacturing process and see how injectors are professionally restored for reliable service.
Vehicles Using 186A7000 Engine
| Vehicle | Engine | Years |
|---|---|---|
| Alfa Romeo 147 injector | 1.9 JTD | |
| Alfa Romeo 156 injector | 1.9 JTD | |
| Alfa Romeo 159 injector | 1.9 JTDM | |
| Alfa Romeo GT injector | 1.9 JTD | |
| Fiat Bravo injector | 1.9 JTD | |
| Fiat Croma injector | 1.9 JTD | |
| Fiat Stilo injector | 1.9 JTD | |
| Saab 9-3 injector | 1.9 TiD |
Common 186A7000 Injector Problems
Rough idle and engine vibration
Worn injector nozzles cause uneven fuel spray, leading to rough idle at low RPM. Most noticeable when the engine is cold.
Excessive exhaust smoke
Black or blue-grey smoke on acceleration indicates poor fuel atomisation. This is often caused by carbon buildup on the injector nozzle tip.
Poor fuel economy
A worn or leaking injector delivers incorrect fuel quantities, reducing efficiency by 10–20% in severe cases.
Engine misfire under load
Intermittent misfires during acceleration suggest one or more injectors are failing to deliver the correct fuel pressure.
Difficult cold starting
Degraded injector nozzles struggle to atomise fuel at lower cranking pressures, causing extended crank times in cold weather.
Loss of power
Gradual power loss across the rev range, particularly above 2500 RPM, can indicate injector flow rate degradation.
Increased diesel knock
Louder than normal combustion noise, especially at idle, can indicate incorrect injection timing due to worn injector internals.
186A7000 Technical Specifications
Displacement
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Power
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Torque
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Fuel System
Common Rail Direct Injection
The 186A7000 is a fiat / opel 1.9 jtd / cdti common rail diesel engine. This engine uses Bosch diesel injectors.
Engine Intelligence
Fiat / Alfa / Vauxhall 1.9 JTD & CDTI 8v (Z19DT/Z19DTL — Astra, Vectra, 147, Stilo)
Documented failure modes
- Injector back-leak beyond specification on high-mileage engines
- Nozzle wear causing over-fuelling, smoke and rough running
- Injector seal leakage — strong diesel smell or visible fuel around the injector area
Diagnostic guidance
- A P020x circuit code points electrical (injector solenoid or wiring); P0087 points hydraulic — check fuel supply, rail-pressure control and injector leak-off before condemning injectors
- Run a comparative leak-off test across all four injectors to isolate a worn unit
- Inspect for fuel seepage and diesel smell around the injectors on hard-start complaints
- Injector coding is required after fitting — follow the manufacturer procedure
Fitment note: The 8v 1.9 JTD/CDTi (Z19DT/Z19DTL, 100–120 hp) uses different injectors from the 16v 150 hp generation (Z19DTH) — always match the reference etched on the injector body.
Related 186A7000 Engine Guides
Related Pages
Bosch Fiat / Opel 1.9 JTD / CDTi — browse compatible engines, vehicles, and injectors