Frequently Asked Questions About Hino 238-338 Truck Deck Plates & Air Line Boxes

What years and models of Hino trucks are these deck plates compatible with?

These deck plates and air line boxes are specifically designed for Hino 238 and 338 series trucks manufactured from 2005 to 2023. They fit all cab configurations including regular cab, crew cab, and extended cab models. The mounting holes align with factory specifications for both the 238 (19,500 lb GVWR) and 338 (33,000 lb GVWR) chassis. Always verify your truck's exact model year before ordering, as minor mounting variations may exist between early and late production years.

Are these deck plates made from aluminum or steel, and how thick is the material?

Our Hino deck plates are manufactured from heavy-duty aluminum tread plate, typically 3/16 inch (4.76mm) thick with raised diamond pattern for superior traction. The aluminum construction provides excellent corrosion resistance while keeping weight down compared to steel alternatives. The air line boxes feature 14-gauge steel construction with a powder-coated finish for durability. Both materials are designed to withstand commercial trucking conditions and resist road salt, weather, and heavy foot traffic.

Do I need to drill any holes for installation, or do these use existing mounting points?

Most of our deck plates utilize existing factory mounting points and frame rails, requiring no drilling in most applications. The plates come with pre-drilled holes that align with standard Hino chassis configurations. However, some custom applications or aftermarket body installations may require minor modifications. Installation typically takes 1-2 hours and requires basic hand tools. We recommend test-fitting before final installation, especially on trucks with aftermarket modifications or body upfits.

What finish options are available, and how do they hold up to weather and road chemicals?

Deck plates are available in mill finish aluminum (natural silver) or black powder-coated options. The mill finish develops a natural protective oxidation layer and requires minimal maintenance. Black powder-coated versions offer enhanced aesthetics but may show wear patterns in high-traffic areas over time. Both finishes resist road salt and chemicals effectively. For maximum longevity in harsh climates, we recommend periodic cleaning and applying a protective coating annually to powder-coated surfaces.

Will these deck plates work with my existing tool boxes or fuel tank configurations?

Our deck plates are designed with cutout options to accommodate most standard underbody tool boxes and auxiliary fuel tank setups. Standard plates feature notched corners for frame rail clearance and can be ordered with custom cutouts for specific toolbox brands like Weather Guard, Buyers, or Merritt. When ordering, specify your toolbox model or provide measurements for custom modifications. Air line boxes mount independently and typically install behind the cab without interfering with existing accessories.