The Polaris 4011173 is an authentic OEM W16W 12V bulb designed for a wide range of Polaris off-road vehicles and snowmobiles. This bulb serves as a crucial component for lighting systems, frequently utilized as a rear turn signal, reverse light, or marker light. Engineered to meet Polaris's stringent quality standards, it ensures reliable performance and direct fitment, maintaining the vehicle's electrical system integrity. Key specifications include a 12-volt operating voltage and a W16W bulb type, which corresponds to a T15 wedge base. This genuine Polaris part is essential for maintaining proper signaling and visibility on compatible models.