This high-grade aftermarket starter solenoid fits the **2008 Arctic Cat F1000 EFI SNO PRO LXR** snowmobile perfectly. It is an exact cross-reference for OEM part numbers **0445-058**, **0645-172** and **0445-036**. This part works as a key electrical connection. It routes 12V power from the battery over to the starter motor, so the engine turns over smoothly. It also maintains consistent ignition output even in freezing, snow-filled winter surroundings. The unit features a tough fully sealed build. It can stand up to frost, damp air and heavy vibration when riding snowmobiles outdoors. It effectively remedies most common starting troubles, such as rough cranking, strange clicking noises and no-start response faults.