proventia retrofits

world-leading
retrofit systems

Our retrofit exhaust gas purification systems provide a simple and cost-effective way to upgrade the emission class of vehicles and machinery to match that of new models. Retrofitting ensures compliance with even the strictest emissions regulations, making heavy vehicles and machinery more environmentally friendly.


Proventia designs and manufactures emission control equipment for the world’s leading engine and machinery manufacturers. Leveraging this expertise, we also produce high-quality retrofit systems. We offer the world’s best emission control technology with over 30 years of experience and have delivered tens of thousands of retrofit systems for machinery, buses, and trucks in the UK, Germany, South Korea, Hong Kong, Sweden, and Finland.

Contact us

Interested in our products and services? Give us a call or send an email!

Jesse Salmi

Business Manager, Emission Control, Retrofit

upgrade Your Machinery to higher emission Standards 

Off-road retrofits

Upgrade your machine’s emission class with our NOxBUSTER® retrofit system. Comply with emission-related tendering requirements and extend the lifespan of your machine cost-effectively.

Read more

Improve the city air quality

On-road retrofits

Proventia retrofit exhaust aftertreatment systems are perfect for city buses, coaches, and trucks. With retrofit systems your vehicles meet the stringent requirements of low emission zones. Retrofitting enhances urban air quality in a sustainable, cost-efficient way.

Read more

When the goal is to cut the emissions down

Retrofit emission control systems

Explore the details of the Proventia NOxBUSTER® retrofit systems! NOxBUSTER® systems provide the most efficient solution for reducing NOX and PM emissions from vehicles already in traffic. Discover Proventia PROCARE Drive Telematics for continuous monitoring of emissions and system performance.

Read more

Learn what can be achieved by retrofitting

ABOUT retrofits

Retrofitting means equipping a vehicle or machine already in use with an effective exhaust aftertreatment device and thus reliably and cost-effectively reduce harmful local emissions.

Read more

International technology

Proventia creates innovative solutions that empower company’s customers to build cleaner and more energy-efficient machines and equipment.

Integrated to our business

It guides our operations, from environmental impact to societal contributions, and corporate governance.

Frequently
Asked
Questions

Retrofitting an emission control system can upgrade the emissions classification of an off-highway machine or heavy-duty vehicle (buses and trucks) up to Stage V or Euro VI standards. During the retrofit, the existing emission control system is replaced with a modern exhaust aftertreatment solution.

A typical retrofit system combines a Diesel Particulate Filter (DPF) and Selective Catalytic Reduction (SCR) technology. This enables particulate matter (PM) emissions to be reduced by up to 99% and nitrogen oxide (NOx) emissions by up to 90%.

Retrofitting allows older machines and vehicles to meet highest emission requirements without replacing the entire fleet. It provides a cost-effective alternative to purchasing new equipment or vehicles while extending the service life of existing assets.

A typical retrofit installation takes 1 to 3 days, depending on the complexity and type of machinery. Compared to the long lead times of new heavy-duty equipment, retrofitting provides a fast way to reduce emissions while keeping machines and vehicles productive.

A properly engineered retrofit system is designed to maintain original engine performance. High-quality solutions such as the Proventia NOxBUSTER® are customized for each application to optimize exhaust flow and minimize back pressure. Engine power and torque remain unchanged under normal operating conditions.

Fuel consumption typically remains stable. SCR-based systems use a small amount of AdBlue® to reduce NOx emissions, usually around 4% to 6% of diesel fuel consumption.

Contact us

Interested in our products and services? Give us a call or send an email!

Jesse Salmi

Business Manager, Emission Control, Retrofit