Frequently Asked Questions About International IH Cabover Frame Light Bar-Panels

What years and models of International IH Cabovers are these light bars compatible with?

Our frame light bars and filler panels are designed to fit International IH Cabover models from the 1970s through the 1990s, including the CO-4000 series, CO-9670, and Transtar II models. However, slight variations exist between model years, so we recommend verifying your specific truck's measurements before ordering. The mounting hole patterns typically match trucks with standard frame rails, but custom or modified frames may require additional drilling or brackets.

Are these light bars made from steel or aluminum, and will they rust?

Most of our International IH Cabover light bars are constructed from heavy-gauge steel with either a chrome-plated or powder-coated finish for corrosion resistance. Chrome options provide a mirror-like finish but require regular maintenance to prevent pitting. Powder-coated versions offer superior rust protection and come in black or custom colors. Some premium models feature 304 stainless steel construction for maximum durability. All steel versions include pre-drilled drain holes to prevent water accumulation.

How difficult is the installation, and what tools or modifications are required?

Installation typically takes 2-4 hours and requires basic hand tools including wrenches, a drill with metal bits, and a socket set. Most light bars use existing frame mounting points, though some applications may need additional holes drilled. Wiring for lights requires basic electrical knowledge - we include detailed wiring diagrams, but professional installation is recommended if you're uncomfortable with 12V systems. Some customers report needing to slightly adjust mounting brackets to account for frame variations or previous damage.

What's the difference between light bars and filler panels, and which do I need?

Light bars include pre-drilled holes and mounting provisions for auxiliary lights, while filler panels are solid pieces designed to cover gaps or create a clean appearance between the bumper and frame. Many drivers use a combination - a center light bar for fog or driving lights, with filler panels on the sides for a finished look. Light bars typically accommodate standard 4-inch or 6-inch round lights, though some models accept rectangular LED units. Consider your lighting needs and local regulations when choosing.

Will these fit if I have an aftermarket bumper or air ride suspension?

Compatibility with aftermarket bumpers varies by manufacturer. Our light bars work with most OEM-style replacement bumpers, but custom or heavy-duty bumpers may require modification. Air ride suspensions generally don't interfere with mounting, as these bars attach to the frame rails rather than suspension components. However, extremely lowered trucks or those with significant frame modifications may experience clearance issues. We recommend measuring your current setup and comparing it to our product dimensions, available on each product page.