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Details
| Specification | Value |
|---|---|
| Brand | PIERBURG |
| MPN | 7.04423.01.0 |
| Voltage [V] | 12 V |
| Operating Mode | EP |
OE numbers (2)
Where this part fits
Original-fit position for OE 55579900. The red ring marks where this part installs on the vehicle.
About this product
The PIERBURG Pressure Converter Turbocharger (7.04423.01.0) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. The part is built to the following specification: Voltage [V]: Zinc V, Operating Mode: EP, Valve Type: Plastic. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit OPEL, VAUXHALL models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 0892128, 0892561, 331240046, 331240201 and 16 more. Matching these numbers confirms a like-for-like replacement with no loss of function. PIERBURG is a recognised supplier of automotive replacement components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched with tracked delivery and a 14-day money-back guarantee with hassle-free returns.
Suitable cars
Equivalent products (20)
Pressure Converter Turbocharger PIERBURG 7.04423.01.0 — compatible car models
| Car models | OPEL: ASTRA H (A04), ASTRA H CLASSIC Hatchback (A04), ASTRA H Estate (A04), ASTRA H Estate Van (L70), ASTRA H GTC (A04), ASTRA H Saloon (A04), MERIVA B MPV (S10); VAUXHALL: ASTRA Mk V (H) (A04), ASTRA Mk V (H) Estate (A04), ASTRA Mk V (H) Sport Hatch (A04), ASTRAVAN Mk V (H) Estate Van (A04), MERIVA Mk II (B) (S10) |
|---|---|
| Engines | 1.3 CDTI (L48); 1.3 CDTI (L35); 1.3 CDTI (L70); 1.3 CDTI (L08); 1.3 CDTi (L69); 1.3 CDTI (75); 1.3 CDTi (L35); 1.3 CDTi (L08); 1.3 CDTi |
| Year of manufacture | 2004-2017 |
| Manufacturer article number (MPN) | 7.04423.01.0 |
| OE part numbers | 55579900, 8 51 057 |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
PIERBURG 7.04423.01.0 . Operating Mode: EP. Valve Type: 6. Voltage [V]: 12 V
- 1x Pressure Converter Turbocharger
Shipping, returns, warranty
Free UK delivery on orders over £99.00. Tracked standard shipping.
- Standard delivery: 5–9 business days
- Order before 5pm — ships the next working day
- Free returns within 14 days
- All parts backed by manufacturer warranty
Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.
Frequently Asked Questions
Is this Pressure Converter Turbocharger compatible with my car?
This Pressure Converter Turbocharger fits OPEL, VAUXHALL vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.
What specifications does this PIERBURG Pressure Converter Turbocharger have?
This PIERBURG Pressure Converter Turbocharger has the following specifications: Voltage [V]: 12 V; Operating Mode: EP; Valve Type: 6. Check the full specifications table above for complete details.
What OE part numbers does this Pressure Converter Turbocharger replace?
This Pressure Converter Turbocharger replaces OE part numbers: 55579900, 8 51 057. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a Pressure Converter Turbocharger cost?
This PIERBURG Pressure Converter Turbocharger is available for £60.99. Pressure Converter Turbocharger prices vary depending on brand, specifications, and vehicle compatibility. PIERBURG parts offer a balance of quality and value, backed by our 14-day money-back guarantee.
How do I know when to replace my Pressure Converter Turbocharger?
Regular inspection of your Pressure Converter Turbocharger is recommended as part of routine vehicle maintenance. Watch for changes in performance, unusual noises, or visual signs of wear. Consult your vehicle's owner manual for manufacturer-recommended replacement intervals specific to your make and model.
What tools do I need to replace a Pressure Converter Turbocharger?
Tools required vary by vehicle make and model. Generally, a basic socket set, screwdrivers, and vehicle-specific tools may be needed. We recommend consulting a workshop manual for your specific vehicle, or having the Pressure Converter Turbocharger fitted by a professional mechanic.
Can I use this part as a replacement for OE 55579900?
Yes, this PIERBURG Pressure Converter Turbocharger is a direct replacement for OE part number 55579900. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Is the PIERBURG 7.04423.01.0 the same as the PIERBURG 7.00262.02.0?
No, while both are Pressure Converter Turbocharger parts, they are different products. The PIERBURG 7.04423.01.0 has Voltage [V]: 12 V, Operating Mode: EP, Valve Type: 6. The PIERBURG 7.00262.02.0 may differ in dimensions, fitting position, or material composition. Always verify compatibility with your specific vehicle using our vehicle selector, or contact our customer service team for assistance.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
