Home > Kenworth Heater Box > T660 (2007 to Mid-2014 Sleeper Cabs) Plug & Play Kenworth Heater Box

T660 (2007 to Mid-2014 Sleeper Cabs) Plug & Play Kenworth Heater Box


Optimize your T660’s HVAC efficiency with our premium stainless steel HVAC box assembly, seamlessly replacing OEM part numbers F31-1064-11122 and F31-1291-11122. Tailored for Kenworth T660 sleeper cab model trucks manufactured prior to mid-2014.

Use our selection tool for a precise fit. Ensure a rust-free future and a trouble-free installation process. Experience enhanced airflow with our advanced unit. Delivered fully assembled and ready for mounting, it’s the HVAC upgrade your system deserves. For inquiries or to kickstart your upgrade, contact us at (616) 834-1503. Enjoy Free UPS Ground shipping.

SKU: F31-1064-22SS-3


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

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:

  • F31-1064-11122
  • F31-1291-11122

Additional information

Weight 52 lbs
Dimensions 25 × 25 × 21 in





1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014


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