Alfa Romeo 156 Catalytic Converter (1997-2006)

The catalytic converter is a crucial part of the exhaust system of the Alfa Romeo 156, designed to reduce harmful emissions from the engine exhaust gases. It works by converting toxic pollutants into less harmful substances before they exit the exhaust pipe. The 156 models, produced between 1997 and 2006, use catalytic converters adapted to the engine type, emission standard (Euro 1 to Euro 4), and body style.

Catalytic converters for Alfa Romeo 156 cover a broad range of engines, periods, and body types including:

• 2.5i V6 24V engine (140 kW / 190 HP) for saloon (1997-2000) and SW (2000)
• 2.0 16v Twin Spark first catalytic converter for models around 2000-2001
• 1.9L engine (112 kW / 150 HP) for SW models (2004-2006) meeting Euro 4 standards
• Diverse engines from 1.6L to 3.2L across different years and Euro emission norms

Exact compatibility depends on detailed engine codes and emission certifications. Always check against your vehicle's specifications before purchase.

Common physical specifications include:

• Length ranges from 300 mm up to about 880 mm
• Typical weight varies from 3 to 6.6 kg
• Diameter and sensor fittings vary based on engine and body type

These variations affect installation and exhaust pipe compatibility, so refer to technical data or contact support for precise fitment details.

The price for Alfa Romeo 156 catalytic converters typically ranges from about €110 to over €700 depending on the brand, engine compatibility, and quality specifics. For instance:

• High-performance converters for the V6 2.5 engines are priced around €550
• Entry-level converters for smaller engines start around €110
• Pricing may vary with market and supplier

Many suppliers offer free delivery on orders above a certain amount and provide warranty and return options.

While there are many brands available, it is recommended to choose catalytic converters that:

• Are made with high-quality stainless steel (INOX 409) and advanced ceramic monoliths
• Meet or exceed E24-103R European certification standards
• Offer compatibility with your Alfa Romeo 156 engine and emission standards
• Have customer-rated durability and reliability

Buying original or premium aftermarket products ensures longer lifespan and better performance of the exhaust system.

Yes, most quality suppliers offer:

• Free returns within 30 days for unused and original condition parts
• A warranty period of 3 years or up to 100,000 km of use
• Warranty conditions require correct installation by professionals, compliance with usage guidelines, and replacement of related sensors like the Lambda sensor

Always read specific warranty terms and keep your purchase invoice for claims.

Catalytic converters are valuable because they:

• Reduce harmful emissions, helping vehicles comply with environmental regulations such as Euro standards
• Protect the environment by converting toxic exhaust gases into less harmful substances
• Are critical for passing vehicle technical inspections and maintaining roadworthiness
• Contribute to engine performance and fuel efficiency when properly functioning

Additionally, there is a market for recycling used catalytic converters, recovering valuable metals from old units.

To find the correct catalytic converter, you should:

• Use your vehicle's engine code and model year as key references
• Verify emission norms compliance (Euro 1 to Euro 4) and body style (saloon or SW)
• Check manufacturer part numbers or Krosfou references for exact fitment
• Replace associated parts such as Lambda sensors during installation for optimal operation

If in doubt, contact technical support or use VIN-based compatibility search tools for precise matching.

Always use high-quality original or premium aftermarket catalytic converters to maintain your Alfa Romeo’s exhaust system integrity.