Toyota Verso Catalytic Converter

The catalytic converter on a Toyota Verso is a crucial part of the exhaust system designed to reduce harmful emissions such as hydrocarbons, carbon monoxide, and nitrogen oxides from petrol and diesel engines. It works by activating the ceramic honeycomb structure inside at high temperatures to clean exhaust gases before they are released into the atmosphere.

Typical signs of catalytic converter issues for Toyota Verso models include:

• Reduced engine performance, such as slow acceleration, power loss, and increased fuel consumption due to blockage or cracks.
• Unusual resonating noises from inside the catalytic converter, often heard especially at cold starts.
• A distinct smell of sulfur or rotten eggs caused by unconverted hydrogen sulfide.
• The engine warning light illuminated, indicating sensor signals related to exhaust gases.

If you notice any of these symptoms, a diagnostic check including error code reading is recommended.

The Toyota Verso diesel catalytic converter commonly refers to OEM reference 174100R170 for the 2.0 D-4D engine variant. There are also compatible Euro 5 standard models like the VEGAZ TK-863 that meet CE/CEE exhaust regulations. Variants for Verso-S models (2007-2018) feature additional anti-theft protection options.

Always check compatibility by model year, engine type, and chassis code before purchase to ensure the part fits your vehicle.

Replacement involves careful dismantling of exhaust components. General steps include:

• Accessing the catalytic converter via the engine bay and under the vehicle by removing protective panels and screws.
• Disconnecting sensors such as the lambda sensor and AdBlue/FAP sensors where applicable.
• Removing upper and lower mounting bolts securing the catalytic converter.

Detailed illustrated guides and video tutorials are recommended for safety and proper procedure. Using the correct tools and following manufacturer specifications ensures quality replacement and exhaust system integrity.

Prices vary depending on condition and market values of precious metals like platinum and palladium inside the monolith. As of January 2026 estimates:

• Used diesel catalytic converters range approximately from 54 to 760 USD.
• Used petrol models have variable prices depending on specific converters and metals.

For new parts, prices depend on suppliers and whether they come with manufacturer guarantees and high-quality construction.

Catalytic converters contain precious metals such as platinum, palladium, and rhodium that act as catalysts to convert harmful gases. These metals give the catalytic converter intrinsic value both as essential vehicle components and for recycling. This value unfortunately also makes them theft targets, particularly in models like the Verso-S.

• Precious metals accelerate chemical reactions to reduce pollution.
• Materials and construction quality contribute to durability and performance.
• Recovered metals from used converters have significant scrap value in the recycling industry.

Anti-theft solutions exist to protect catalytic converters in the Toyota Verso from being stolen.

Before purchasing, verify the following:

• Exact Toyota Verso model and production year.
• Engine variant and displacement to ensure the converter is the correct fit.
• OEM reference or compatible aftermarket reference numbers.
• Type approval and compliance with Euro 4, 5, or 6 emission standards as applicable.
• Supplier warranty and manufacturing quality certifications.

Accurate identification and confirmation prevent incorrect fitment and ensure compliance with vehicle emission requirements.

High-quality new Toyota Verso catalytic converters are manufactured with stainless steel INOX 409 and advanced ceramic monoliths with rare metal coatings for maximum durability and performance. They come with a 3-year warranty covering use up to 100,000 km.

• Purchase from specialized suppliers offering genuine, type-approved products compliant with European standards.
• Look for free shipping options within Europe for orders over a certain amount and express international delivery services.
• Many offer free 30-day returns for unused, original condition parts.
• Technical customer support and installation guides are often available.

Always ensure purchase from trustworthy sources that provide warranty and post-sale support to guarantee quality and fitment assurance.