Heavy Duty Trucking Logo
MenuMENU
SearchSEARCH

Transtex Trailer Aero Kit Meets CARB Standards

Transtex’s Edge TopKit+ system, featuring aerodynamic side and top rear fairings and mud flaps, has been pre-approved to meet California Air Resources Board emissions standards for 2021 to 2023 model year trailers.

September 13, 2021
Transtex Trailer Aero Kit Meets CARB Standards

Transtex's TopKit+ redirects air towards the rear of the trailer to reduce drag on dry vans, reefers and straight trucks with swing or rollup doors.

Photo: Transtex

1 min to read


Transtex’s Edge TopKit+, aerodynamic side and top rear fairings, paired with the company’s Edge Flap aerodynamic mud flaps, has been pre-approved to meet California Air Resources Board emissions standards for 2021 to 2023 model year heavy-duty trailers.

The TopKit+ redirects air toward the rear of the trailer to reduce drag on dry vans, reefers and straight trucks with swing or rollup doors. In a fuel economy test last year, Mesilia Valley Transportation Solutions certified the TopKit+ system to save 4.44% of fuel on a Class 8 truck with a 53-foot dry van trailer, compared to the same tractor-trailer without the solution.

Ad Loading...

The TopKit+ is the only rear aerodynamic device to meet CARB’s Greenhouse Gas Phase 2 Bin III pre-approval, Todd McGuire, Transtex’s vice president of sales, said during a presentation to industry press on Sept. 12 at ATA’s Technology & Maintenance Council Fall Meeting.

The TopKit+ is a completely re-designed version of a the TopKit product Transtex acquired from Greenville, South Carolina-based trailer aerodynamic system supplier SmartTruck in April 2019.

In 2017, HDT named the TopKit product from SmartTruck a Top 20 Product of the year.

Ad Loading...

The side and top fairings are made from recyclable thermoplastic polyolen, and are designed to withstand all weather conditions, Transtex officials said.  

More Equipment

Red Kodiak-branded autonomous tractor with Charger-branded trailer backed up to warehouse
Fleet Management•October 30, 2026

Kodiak Lines Up Fleets for Driverless Trucking

An agreement for 75 trucks, a new Texas freight lane, and progress on safety validation move Kodiak closer to its planned driverless highway launch.

Read More →
A GP Transco tractor-trailer crosses a bridge over a river, with trailer side skirts visible beneath the white trailer.
Fuel Smarts•by Deborah Lockridge•October 27, 2026

How GP Transco Builds Fuel Savings a Fraction at a Time

Aerodynamic specs, solar panels, and driver incentives help GP Transco turn small efficiency gains into savings it can reinvest in its people.

Read More →
YouTube thumbnail showing man being interviewed and backup camera and in-cab screen showing backup video
Safety & Compliance•by Deborah Lockridge•October 23, 2026

More Trailer Data Through the Same Seven-Way [Video]

Can trucking’s standard seven-way connector handle more cameras and trailer data? Grote’s Adam Slade shows HDT how the company is using new technology with its 4See trailer system, not only to add a new backup camera but also to expand other capabilities — without adding another connection.

Read More →
Ad Loading...
Rear view camera on back of a semi trailer
Equipment•by Deborah Lockridge•October 23, 2026

Grote: More Cameras, Same Seven-Way Connector

The next-generation 4See rear-view backup camera from Grote uses the standard seven-way connector and supports additional cameras and other trailer data.

Read More →
wide angle photo of trade show booth with big "Mack" sign above, red Mack truck in the foreground
Equipment•by Deborah Lockridge•October 20, 2026

Trucks at ATA's 2026 MC&E in Charlotte, North Carolina [Photos]

From rigs decked out in patriotic America's 250 paint schemes to autonomous trucks and more, check out these photos from ATA's 2026 Management Conference & Exhibition.

Read More →
2027 HDT Top 20 Products logo beside “Nominations Open” text and images of 2026 award winners: a Cummins engine, Lytx dash cam, and Michelin truck tire.
Equipment•by Staff•October 16, 2026

Help HDT Find Trucking’s Top Products

Have you come across a new product that could make a difference for trucking fleets? Nominate it for HDT’s 2027 Top 20 Products Awards by November 9.

Read More →
Ad Loading...
Yellow Volvo VNS heavy-haul sleeper truck with rugged tires and prominent grille, parked at night on a snow-covered lot beside a black truck, with a Volvo construction machine on a trailer behind it.
Equipment•by Wayne Parham•October 14, 2026

Volvo Unveils New VNX Heavy-Haul and Vocational Truck

Volvo Trucks has launched the VNX, a new vocational truck also available as a tractor in day cab and two sleeper configurations, with one heavy-haul model. The Volvo VNX is powered by Volvo's D13 platform, which delivers up to 540 horsepower and 1,950 pound-feet of torque and is EPA 2027-compliant.  

Read More →
Youtube thumbnail showing two people with a truck and the word "fuel" behind them, the HDT Talks Trucking logo, and the words "Small Gains. Big Savings."
Fuel Smarts•by Deborah Lockridge•October 12, 2026

How GP Transco Cuts Trucking Fuel Costs, a Tenth of a Gallon at a Time

What’s another tenth of a mile per gallon worth? GP Transco shares how equipment upgrades and driver coaching turn small gains into meaningful fuel savings.

Read More →
Photo of electric OrangeEV terminal tractor with a Lazer Logistics trailer
Equipment•by Staff•October 6, 2026

Electric Yard Tractors Move Beyond Pilots

Operating-cost savings have overtaken sustainability goals as the leading reason surveyed fleets are adopting battery-electric terminal tractors, according to new NACFE research.

Read More →
Ad Loading...
Two truck tires with a muted highway background
Maintenance•by News/Media Release•October 2, 2026

Continental Introduces New Regional Truck Tires

Continental says its new Generation 5 steer and drive tires for regional operations offer longer tread life, with estimated mileage gains of 22% and 19%, respectively.

Read More →