M50-6039-4414050
Heated DEF Return and Supply Hose Assembly (4 x 4050mm)
Kenworth®

The Heated DEF Return and Supply Hose Assembly is a vital component for maintaining optimal diesel exhaust fluid flow in your Kenworth truck's aftertreatment system. Designed with durability and flexibility in mind, this assembly ensures reliable transfer of DEF between tanks and emission control devices, even in extreme temperatures. The hoses are constructed to withstand high temperatures and chemical exposure, providing a long-lasting solution for your vehicle's emission system. Each kit includes four hoses measuring 4050mm, tailored to fit specific configurations. Proper installation of this heated hose assembly helps prevent DEF freezing and ensures consistent performance, contributing to compliance with emission standards. Whether you're performing routine maintenance or replacing worn-out parts, sourcing genuine OEM parts like this from Source One Parts Center guarantees quality and compatibility. Trust us to provide authentic Kenworth parts that keep your truck running smoothly and efficiently, backed by our commitment to customer satisfaction and expert support.