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(KW 87 – 94) Kenworth Heater Box


(2 customer reviews)

Stainless Steel Heater Box K142-465ss-2 for 1994 and earlier Kenworth T400, T600, T660, T800, W900 model trucks. Have questions? Give us a call at (616) 834-1503.

SKU: K142-465SS-2

The problem with the OEM Kenworth heater box assembly is that it is made of steel and easily rusts due to the salty, wet conditions that your rig experiences on a regular basis. What’s the solution? The solution is to use a far superior design made from stainless steel. Our heater boxes will never rust! Get yours today! Call now at (616) 834-1503 or click Add to Cart. We accept all major credit cards.


  • Stainless steel box
  • Upgraded blower motor (15% more CFM than OEM)
  • AC Evaporator
  • Coil heater
  • Thermostat
  • Expansion valve
  • Gasket kit

The F31-1036SS-2 heater box comes assembled including the gasket kit.


Cross references:

  • K142-465-1
  • K142-513-1
  • K142-384-1

This box will fit 1987 to 1994 Kenworth w900, W900L T800, T600, T660. It will also fit 1984 -1986 W900B if you plan to block off the fresh. If you would like to keep your fresh air, this HVAC box would be a better solution.

Additional information

Weight 35 lbs
Dimensions 20 × 15 × 20 in

Fits T400, T600, T660, T800, W900 We have confirmed fitment for 1984 – 1986 W900B trucks

Alternative part numbers





T400, T600, T800, W900


1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994

2 reviews for (KW 87 – 94) Kenworth Heater Box

  1. Keith Smith

    So my 2001 KW 900 L had a really weak HVAC I just installed the shoreline full package with everything in it and I gotta tell you it is kicking ass I love this product. I am not disappointed in fact I’m tickled pink

  2. Alex Heimes

    I’ve had mine since this summer some time. My high setting is now more in-between low and medium and high is now way more air flow than before. These are awesome. Without a doubt I will slowly be converting all my trucks as the boxes rot.

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