Frequently Asked Questions About International IH Cabover Cab Lights

Which International IH cabover models are these cab lights compatible with?

These cab lights are designed to fit International IH cabover models from the 1960s through the early 2000s, including the CO-Loadstar, Transtar, and 9670 series. The most common applications are for the CO-4000 series (1973-1989) and the 9670/9700 models (1982-2003). Always verify your specific model year and cab configuration before ordering, as some mid-year production changes may affect fitment.

What material are these cab lights made from, and how durable are they?

Most replacement cab lights are manufactured from high-impact ABS plastic or polycarbonate lenses with chrome-plated or powder-coated steel bases. The lenses are typically DOT-approved and UV-resistant to prevent yellowing and cracking. For maximum durability, look for lights with sealed construction and stainless steel hardware, which better withstand road salt, weather exposure, and vibration common in commercial trucking applications.

Do I need to drill new holes for installation, or will these fit existing mounting points?

Most aftermarket cab lights are designed as direct replacements that utilize factory mounting holes and wiring harnesses. However, some older cabovers may have non-standard configurations or previous modifications. We recommend checking your existing hole spacing before ordering. Standard center-to-center mounting distances are typically 2.5 inches for smaller lights and 4 inches for larger rectangular styles. Installation usually requires basic hand tools and takes 30-45 minutes per light.

What styles and lens colors are available for IH cabover cab lights?

Common styles include the classic round "beehive" design, rectangular, and teardrop shapes. Lens colors available are typically amber (most common for front and side markers), red (for rear markers), and clear (for backup or courtesy lights). Some models offer LED upgrades with amber, red, or white illumination. Chrome, black, and stainless steel bezels are the standard finish options to match your truck's existing trim.

Will LED cab lights work with my older International's electrical system?

LED cab lights will work with most International IH cabovers, but trucks built before 1990 may require load resistors or electronic flashers to prevent hyperflashing of turn signals. LEDs draw significantly less power than incandescent bulbs (typically 0.5 amps vs 2-3 amps), which can confuse older flasher relays. The good news is that LEDs last much longer, produce less heat, and are more visible than traditional bulbs, making the minor electrical modifications worthwhile for most drivers.