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Details
| Specification | Value |
|---|---|
| Brand | FA1 |
| MPN | md000174 |
| Category | catalyst converter |
OE numbers (4)
What's in the kit
This kit ships with 3 factory-matched components. Each part below is supplied as part of the kit; click any linked MPN to view that component on its own.
| # | Part number | Component | Qty |
|---|---|---|---|
| 1 | 121-948 | Seal Ring, exhaust pipe
| 1 |
| 2 | 125-902 | Bolt, exhaust system
| 2 |
| 3 | 125-905 | Spring, muffler | 2 |
About this product
When catalyst converter performance matters, the FA1 MD000174 delivers — built to the same dimensional and material standards as the original part it replaces. Compatible with OPEL vehicles; use the vehicle selector above to confirm exact fitment for your make, model, and engine variant. Fitment data is sourced from TecDoc, the authoritative European parts catalogue. This part supersedes original equipment references: 043987, 0809760, 099632, 20235 and 14 more. Matching these numbers confirms a like-for-like replacement with no loss of function. FA1 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 (14)
catalyst converter FA1 MD000174 — compatible car models
| Car models | OPEL: ASTRA F Estate (T92), ASTRA F Hatchback (T92), ASTRA F Saloon (T92), VECTRA B Estate (J96), VECTRA B Hatchback (J96), VECTRA B (J96) |
|---|---|
| Engines | 1.4 Si (F35, M35); 1.4 Si (F08, M08, F68, M68); 1.4 Si (F19, M19); 1.6 i (F35); 1.6 i (F68); 1.6 i (F19) |
| Year of manufacture | 1991-2004 |
| Manufacturer article number (MPN) | MD000174 |
| OE part numbers | (855057), (855181), (855220), (858077) |
Compatibility check
Loading vehicle data…
Please wait while we load vehicle compatibility information.Description and what's included
FA1 md000174 catalyst converter
- 1x catalyst converter
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 catalyst converter compatible with my car?
This catalyst converter fits OPEL 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 FA1 catalyst converter have?
The package includes the catalyst converter as described in the specifications above. Check the "What's included" section for a full list of components. If mounting hardware or accessories are required, they will be listed separately.
What OE part numbers does this catalyst converter replace?
This catalyst converter replaces OE part numbers: (855057), (855181), (855220), (858077). Cross-reference these numbers with your vehicle's original part number to confirm compatibility.
How much does a catalyst converter cost?
Catalyst converter prices vary depending on brand, specifications, and vehicle compatibility. Check the current price above for this FA1 catalyst converter. All parts come with our 14-day money-back guarantee.
How do I know when to replace my catalyst converter?
Regular inspection of your catalyst converter 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 catalyst converter?
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 catalyst converter fitted by a professional mechanic.
Can I use this part as a replacement for OE (855057)?
Yes, this FA1 catalyst converter is a direct replacement for OE part number (855057). It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.
Related categories
Common OE numbers for this part
Common original equipment numbers linked to stocked alternatives.
