Home > Kenworth HVAC Box > (Mid-2001 to Mid-2007) Plug & Play Kenworth Heater Box

(Mid-2001 to Mid-2007) Plug & Play Kenworth Heater Box


Elevate your Kenworth’s HVAC system with our premium stainless steel box assembly, a seamless replacement for OEM part numbers F31-1036-1 and F31-1053-001. Designed for mid-2001 to mid-2007 W900, T800, T600, T400, C500 models. Check out our selection tool to ensure the perfect fit! it guarantees a rust-free future and hassle-free installation. Our advanced unit ensures increased airflow for a superior driving experience. Fully assembled and ready to mount, it’s the upgrade your HVAC system deserves. Questions or ready to upgrade? Call us at (616) 834-1503.

SKU: F31-1036SS-3

Our boxes are built with 18 gauge 304 stainless steel. Unlike most aftermarket competitors, we spot weld our boxes for added strength. We offer free shipping in the lower 48 states and Canada.

OEM Cross References:

  • F31-1036-1
  • F31-1053-001


  • Evaporator
  • Heater Core
  • Blower Motor
  • Expansion Valve
  • Thermostatic Switch
  • Electronic Operated Door Actuator
  • Gaskets
  • Fresh air intake and door weldment
  • Stainless fasteners

Installation Guide (PDF)
Installation Guide (Video)

Additional information

Weight 52 lbs
Dimensions 25 × 25 × 21 in



T400, T600, T800, W900


2002, 2003, 2004, 2005, 2006, 2007


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