Frequently Asked Questions About Ford F650-F750 Truck Cab Lights

Will these cab lights fit my specific F650/F750 model year?

Most aftermarket cab lights for Ford F650 and F750 trucks are designed to fit models from 2000 to current production years. However, there are some variations between generations. Pre-2016 models typically use a different mounting pattern than 2016+ models. Always verify the specific year range listed in the product description, and note that some lights may require drilling new holes if your truck didn't come with factory cab lights.

What's involved in installing cab lights if my truck doesn't have them from the factory?

Installing cab lights on a truck without factory provisions requires drilling five holes in your roof (typically 3/4" diameter), running wiring from the cab lights to your existing clearance light circuit, and properly sealing all penetrations with butyl tape or silicone sealant. The job usually takes 2-4 hours and requires basic electrical knowledge. Many customers recommend using a template or the included gaskets to mark hole locations accurately. Professional installation typically costs $150-$300.

What's the difference between LED and incandescent cab lights for my F650/F750?

LED cab lights offer several advantages over incandescent options: they draw 80% less power (important for trucks with multiple lights), last 50,000+ hours versus 2,000 hours for incandescent bulbs, and provide instant-on brightness. LED options typically cost $20-40 more upfront but eliminate bulb replacement costs. Incandescent lights are still popular for maintaining a classic look and are easier to find replacement bulbs for at any auto parts store.

Are amber or clear cab lights required by DOT regulations for my truck?

DOT regulations require amber clearance lights for vehicles over 80 inches wide. Since F650 and F750 trucks exceed this width, amber cab lights are legally required when the vehicle is used commercially. Clear or smoked lenses with amber bulbs are acceptable as long as they emit amber light. Some states have additional requirements, so check your local regulations. Many drivers prefer the traditional amber lens for maximum visibility and compliance certainty.

How do I prevent water leaks after installing aftermarket cab lights?

Proper sealing is critical to prevent cab leaks. Use the supplied rubber gaskets and apply a bead of high-quality silicone sealant or butyl tape around each light base before installation. Avoid over-tightening the mounting screws, which can crack the lens or distort the gasket. Many experienced installers recommend adding a second thin bead of clear silicone around the outside edge after installation as extra insurance. Check and reseal annually, especially if you notice any condensation inside the lights.