Kenworth Heater Box Assembly (Plug & Play)

Fully complete units for a quick and easy install.

Below you will find a list of our stainless after-market Kenworth Heater Box Assemblies. These are true plug & play units that include the fresh air intake,, wiring harness, actuator, and all the internal parts. Made in the USA as a stainless after-market alternative to the OEM cab unit. Same-day shipping is available on most products ordered before 2:30 PM EST Monday – Friday.




Our Kenworth HVAC box assemblies 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 HVAC Box Assembly 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 HVAC 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 rivet nuts, while our competitor uses steel.

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

The Shoreline HVAC 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” HVAC 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

“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.”
“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!.”

“Ordering the HVAC 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!”

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