Frequently Asked Questions About International 8600 TranStar Cab Lights

Will these cab lights fit my specific year International 8600 TranStar, and are there any model variations I should know about?

Most aftermarket cab lights are designed to fit International 8600 TranStar models from 2007-2017. However, there can be slight variations between early models (2007-2010) and later models (2011-2017) in terms of roof curvature and mounting hole spacing. Always verify the product specifications match your truck's exact year and check if your TranStar has the factory pre-drilled mounting holes or if you'll need to drill them yourself. Models with sleeper cabs may have different spacing requirements than day cabs.

Are these cab lights DOT approved, and what's the difference between LED and incandescent options?

Quality cab lights should meet DOT/SAE requirements for clearance and identification lamps. LED options typically last 50,000+ hours compared to 2,000 hours for incandescent bulbs, draw less power (reducing alternator strain), and provide brighter, more consistent illumination. LEDs also perform better in extreme temperatures and vibration. While LED sets cost more upfront, they eliminate frequent bulb replacements and reduce long-term maintenance costs.

How difficult is the installation, and what tools or additional parts will I need?

Installation typically takes 2-4 hours depending on whether your truck has factory mounting holes. You'll need a drill with metal bits (if not pre-drilled), wire strippers, electrical tape or heat shrink tubing, and basic hand tools. Most kits include mounting gaskets and hardware, but you may need additional wire, connectors, and a fuse tap to connect to your running light circuit. Some installers recommend using silicone sealant around the bases for extra weather protection.

What styles and lens colors are available, and which are street legal?

Common styles include the classic Peterbilt-style rectangular, round torpedo, and watermelon designs. For street legal compliance, amber lenses are required for front and side-facing lights, while red lenses are mandatory for rear-facing positions. Clear lenses with amber or red LEDs are also acceptable. Smoked or tinted lenses may not meet DOT requirements in all states. Chrome, black powder-coated, and polished stainless steel bases are the most popular finish options.

How do I prevent water leaks and ensure proper wiring to avoid electrical issues?

Water intrusion is the most common complaint with cab lights. Use high-quality rubber gaskets (replace factory gaskets if they appear thin or degraded) and apply a bead of clear silicone sealant around each base before mounting. For wiring, connect to a switched power source that activates with your running lights, use proper gauge wire (typically 16-18 AWG), and ensure all connections are soldered or use quality crimp connectors with heat shrink. Install an appropriate fuse (usually 10-15 amp) to protect the circuit.