$1,595.00

Made in the USA The stainless steel Kenworth heater box assembly by Shoreline Manufacturing is made of 100% stainless steel. This box is compatible with the Kenworth T600, T800, W900, W900B, W900L series Kenworth trucks.

  • Superior Quality
  • 100% stainless box & fasteners
  • Lifetime rust-free guarantee
  • Orders before 2 PM EST ship same day
  • FREE Shipping in the US & Canada

Alternate Part Numbers: F31-1220-11112, F31-1064-11112, F31-1220-11112, K142-535-1, F31-1036-1, K142-465-1, F31-1072-11120, F31-1221-11120, 740185-2, K142-513-1, F31-1288-11110, F31-1053-001, f31-1292-11110, F31-1072-11110

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 money orders and all credit cards.Includes:

  • Stainless steel box
  • Upgraded blower motor included
  • AC evaporator
  • Coil heater
  • Thermostat
  • Expansion valve
  • Gasket kit

The F31-1036SS-2 heater box comes fully assembled including the gasket kit. If you're not needing a complete assembly, you can always go with the F31-1036ss-1 Kenworth heater box with blower motor.

Additional information

Weight 35 lbs
Dimensions 20 × 15 × 20 in

Made in the USA

Our heater boxes are made with precision right here in Holland, Michigan.

We are a custom metal fabrication shop that has been in operation since 2006. Our favorite metal to work with is stainless steel due to it’s strength and anti-corrosion properties.

Shoreline Kenworth Heater Box Overview

Lifetime Rust-Free Guarantee

Manufactured With 100% Stainless Steel

Matches OEM Dimensions & Connections For Easy Install

Shoreline vs The Competition

This video compares the Shoreline stainless steel Kenworth heater box with one of our competitors. We list a few of the differences below. Watch the video to see all the differences.

The Shoreline box uses stainless rivnuts, while our competitor uses steel.

The Shoreline box is spot welded, while the competition decided to use rivets.

The Shoreline box includes mounting studs for easy mounting; the competitor's box does not.

Our box includes a drip tray; the competitor's box does not.

Not All Stainless is Created Equal

Another “stainless steel” heater box has come on the market. We decided to get our hands on one and do a bit of a comparison.

Watch the video to see some of the comparisons or checkout the 21 point comparison chart below. We will also post some of the main points below.

18 gauge vs 22 gauge

All stainless fasteners vs steel fasteners

Spot welds vs rivets

21 Point Comparison Chart

Kenworth Stainless Heater Box Comparison

Happy Customers

“I’ve installed one of your boxes on a customer’s truck. They install nicely and the quality is superb…
I wish I found your product before spending 2 days fabricating one for my KW…
I’ve installed a couple different aftermarket ones. Yours went the smoothest of any.”
Isaac Shoreline Manufacturing Review

Isaac Kohne

Creek Hill Farms LLC
“Just finished an install for my 02′ KW T800. Installed smoothly with a very little issues. Now have strong heat AND A/C. I shouldn’t have hesitated ordering because the quality is definitely there!.”

John Dobosh

“Ordering the box was easy. The staff at Shoreline helped make this job a breeze. The price is fair and the shipping cost was low considering the quick delivery time. Thanks Shoreline. Great product!”

Dalhus Dewald

Dewald Contracting 

Polished Heater Box
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