Looking for a durable replacement W900 Heater Box? Truck Parts Line supplies premium stainless steel HVAC box assemblies designed for Kenworth W900, T800, and T600 trucks. Built to withstand harsh operating conditions and corrosion-prone environments, our complete HVAC assemblies provide a long-lasting solution for fleets, owner-operators, repair facilities, and truck dealerships across the USA and Canada.

Complete Stainless Steel HVAC Assembly
Our W900 Heater Box comes as a complete assembly with all essential components included, making installation faster and more convenient. Manufactured from high-quality stainless steel, it offers superior resistance to rust and corrosion compared to traditional steel components, helping extend service life and reduce future maintenance costs.
Designed as a direct-fit replacement, our HVAC box assembly restores reliable heating and ventilation performance while maintaining OEM-style fit and function.
Built for Heavy-Duty Performance
Every W900 Heater Box is engineered to perform in demanding commercial trucking environments. Whether your truck operates in extreme weather, high-moisture regions, or heavy-duty applications, our stainless steel construction delivers dependable durability and consistent HVAC performance.
Compatible with:
- Kenworth W900
- Kenworth T800
- Kenworth T600
Each assembly is manufactured to meet high-quality standards, ensuring reliable operation and long-term value.
Fast Installation and Reliable Performance
Our complete HVAC assemblies are designed to minimise installation time by including all required components in one package. This helps repair facilities and fleet maintenance teams reduce vehicle downtime and return trucks to service quickly.
The stainless steel construction also helps prevent corrosion-related failures, making it an excellent long-term investment for commercial truck owners and maintenance professionals.
Why Choose Truck Parts Line?
Customers choose Truck Parts Line because we provide:
- Premium W900 Heater Box assemblies
- Complete stainless steel HVAC box assemblies
- Direct-fit replacement for Kenworth W900, T800, and T600
- Corrosion-resistant stainless steel construction
- High-quality aftermarket truck parts
- Fast & Free shipping across the USA and Canada
- Reliable customer support
- Products built for heavy-duty commercial applications
Our commitment to quality and durability makes us a trusted supplier of aftermarket truck parts throughout North America.
Order Your W900 Heater Box Today
Upgrade your Kenworth HVAC system with a premium W900 Heater Box from Truck Parts Line. Our complete stainless steel HVAC box assemblies provide exceptional durability, reliable performance, and easy installation for Kenworth W900, T800, and T600 trucks. Order today and enjoy Fast & Free shipping throughout the USA and Canada.