Fuel Injector 0445110165 R1590065 for Opel Astra Zafira Vectra Signum Saab 45903 2004-UP
This fuel injector is engineered as a direct replacement for the Opel Astra Zafira Vectra Signum Saab 45903 2004-UP. Manufactured to meet or exceed OEM specifications, it delivers reliable performance in demanding conditions. Each unit is tested for fuel flow, pressure rating, and durability before leaving the factory to ensure consistent quality across every order.
Vehicle Compatibility
| Application | Details |
|---|---|
| Fuel Injector 0445110165 R1590065 for Opel Astra Zafira Vectra Signum Saab 45903 2004 | UP Condition: New Aftermarket Part Note: We recommend replacing the entire set of fuel injectors to ensure the engine’s optimal performance. Due to differences in oil output and atomization concentration between genuine and aftermarket parts, they should not be mixed. Replacing the entire set of injectors helps avoid potential issues. Always use clean oil. Replacement Part Number: 0 445 110 165, 0 986 435 103, 0445 110 165, 0445110 165, 0445110165, 0986 435 103, 0986435 103, 0986435103, 55185577, 55191957, 55192741, 5821110, 93169119, 93178684, 93186428, R1590065 Application:Fit for following models: 2004-2010 Opel Astra 1.9 d 100-120 Z19DT, Z19DTL, Turbo Ecotec, CDTI, H, GTC2004-2008 Opel Signum 1.9 d 100-120 Z19DT, Z19DTL, Turbo Ecotec, CDTI, 192004-2008 Opel Vectra 1.9 d 100-120 Z19DT, Z19DTL, Turbo Ecotec, CDTI, C, Caravan2005-UP Opel Zafira 1.9 d 100-120 Z19DT, Z19DTL, Turbo Ecotec, CDTI, B, A05, 192004-UP Saab 45903 1.9 d 120 Z19DT, TiD, 9440, YS3F, Cabriolet2004-2010 Vauxhall Astra 1.9 d 100-120 Z19DT, Z19DTL, Turbo Ecotec, CDTI, H, GTC2004-2008 Vauxhall Signum 1.9 d 100-120 Z19DT, Z19DTL, Turbo Ecotec, CDTI, 192004-2008 Vauxhall Vectra 1.9 d 100-120 Z19DT, Z19DTL, Turbo Ecotec, CDTI, C, Caravan2005-UP Vauxhall Zafira 1.9 d 100-120 Z19DT, Z19DTL, Turbo Ecotec, CDTI, B, A05, 19 |
Replaces OEM Part Numbers
0445110 • 0445110165 • 0986435 • 0986435103 • 55185577 • 55191957 • 55192741 • 5821110 • 93169119 • 93178684 • 93186428 • R1590065
Signs You Need a Replacement
If your equipment is showing any of these symptoms, the injectors & nozzle may be the cause:
- Rough idle or misfire — Uneven fuel delivery from a worn injector causes the engine to shake at idle. On engines, this is often accompanied by a knocking sound under load.
- Black or white exhaust smoke — Black smoke means excess fuel; white smoke indicates incomplete combustion. Both point to injector spray pattern degradation.
- Loss of engine power — A single failing injector reduces cylinder output. Multi-cylinder engines lose noticeable power when one injector flows less than the rest.
- Increased fuel consumption — Poor atomization means the engine burns more fuel to produce the same power. Monitor your fuel burn rate as an early warning sign.
- Hard starting or no start — If the injector doesn’t deliver fuel on cranking, the cylinder won’t fire. This is especially common in cold weather with worn nozzles.
- Fuel in engine oil (dilution) — Fuel leaking past the injector seat seal contaminates the crankcase oil. If the oil level rises or smells of diesel, inspect the injectors immediately.
Replace as a Set
Replace all injectors as a set whenever possible. On engines, mixing old and new injectors creates uneven fuel delivery — the new injectors compensate for the worn ones, shortening their life. When installing, use new copper sealing washers and torque to the specification in the service manual. After installation, run the engine at idle for 5 minutes to bleed air from the fuel system, then check for leaks at each injector connection before putting the machine under load.
Frequently Asked Questions
Can I cross-reference 0445110 with 0445110165?
Yes. Both 0445110 and 0445110165 are interchangeable OEM numbers for this part. They refer to the same component with the same specifications, just different part number revisions.
My vehicle is a 2004 model – is it covered?
The compatibility range for this part includes 2004-2010. The 2004 model year falls within this range, but verify the engine code and body type match. Mid-year production changes sometimes mean two vehicles from the same model year use different parts.
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