Kenworth Stainless Steel HVAC Box- Heater/Ac Box Assembly for T600, T800, W900, W900B & W900L - Best Price, FREE SHIPPING & Lifetime Warranty." Weighty engine vehicles like trucks, farm haulers, earthmovers, and towing trucks all have high limit diesel motors. Generators likewise utilize uncompromising diesel motors. Force yield and commotion levels (under 87 dBA) are significant....