4394947RXCUM
Inlet Catalyst Module
Kenworth®

The Inlet Catalyst Module is a key component in your Kenworth truck's aftertreatment system, responsible for initiating the catalytic process that reduces emissions from diesel engines. Designed for precise fit and optimal performance, this OEM part ensures your vehicle complies with environmental standards while maintaining peak engine efficiency. Made from durable, heat-resistant materials, it withstands the rigors of demanding trucking operations. Installing this inlet catalyst module helps improve exhaust flow, reduce harmful pollutants, and extend the lifespan of downstream components. When sourcing genuine OEM parts, choose Source One Parts Center for quality assurance, expert support, and fast delivery—your trusted partner in maintaining your Kenworth’s performance and environmental compliance.