Peterbilt 359Heater Box You Asked, WE Answered! call or Email us for your quote or to place an order! Email Call HVAC Parts Bunk Heaters Heater Boxes HVAC Parts Fresh Air Filter Kits Replacement Blower Fan (601013) CA$240.00 Purchase Added! Dual Port Pad Mount Expansion Valve Mid 2014+ (601005) CA$80.00 Purchase Added! Replacement Kenworth Heater Core CA$395.00 Purchase Added! Replacement Kenworth AC Evaporator 1987-2014 CA$425.00 Purchase Added! Rubber Recirculation Flap For Kenworth Heater Box CA$25.00 Purchase Added! OEM Style Stainless Steel Duct Flap Assembly CA$125.00 Model Year: Select Model Year 2001 and Newer 1987-2000 Purchase Added! Premium Kenworth Thermostat Freeze Switch (601015) CA$125.00 Purchase Added! OEM Kenworth HVAC Clip (Part# 601069) CA$4.50 Purchase Added! Dual Port Block Type Expansion Valve 2008- Mid 2014 (601009) CA$80.00 Purchase Added! Single Port Block Type Expansion Valve 87-98 (601003) CA$80.00 Purchase Added! OEM Kenworth Fresh air Duct (Part #'s 601023,601063) CA$475.00 Model Year: Select Model Year 2001 or Newer W900 - T800- T600 1987-2000 W900 - T800 - T600 Purchase Added! Standard Pad Mount Expansion Valve 99-07 (601004) CA$80.00 Purchase Added! Customer review & Install Video