Fuel Injector 5821086 97300091 for Opel Astra G Vauxhall Astravan Mk IV 1993-2009
This fuel injector is engineered as a direct replacement for the Opel Astra G Vauxhall Astravan Mk IV 1993-2009. 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 5821086 97300091 for Opel Astra G Vauxhall Astravan Mk IV 1993 | 2009 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: R1590064, 5821086, 58 21 086, 98433633, 97300091, 8-97300-091-2, 8-97300-091-3, 8-97300-091-1, 8-97300-091-0, 0986435082, 0445110118, 0 986 435 082, 0 445 110 118, 93169117, 97300091, 8973000912, 8973000913, 8973000911, 8973000910, 5821525 Applications:Fit for following models:Opel Astra G Classic Caravan 2004.03-2009.07Opel Astra G Classic 2004.03-2009.07Opel Astra G Estate 1998.02-2005.07Opel Astra G Estate Van 1998.09-2005.04Opel Astra G Hatchback 1998.02-2009.12Opel Astra G Saloon 1998.03-2009.12Vauxhall Astra Mk IV 1998.02-2005.05Vauxhall Astra Mk IV 1998.02-2005.05Vauxhall Astra Mk IV 1998.02-2005.05Vauxhall Astravan Mk IV 1993.01-2006.08 |
Replaces OEM Part Numbers
R1590064 • 5821086 • 98433633 • 97300091 • 8-97300-091-2 • 8-97300-091-3 • 8-97300-091-1 • 8-97300-091-0 • 0986435082 • 0445110118 • 93169117 • 8973000912
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 R1590064 with 5821086?
Yes. Both R1590064 and 5821086 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 1993 model – is it covered?
The compatibility range for this part includes 1993-2009. The 1993 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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