OE numbers: 4012981, 4012399 (depends on the vehicle data) - Function: brake pressure switch monitors brake fluid pressure to provide timely, accurate information to the brake system. - Compatibility: replacement brake pressure switch for Polaris Ace, Brutus, RZR, and Sportsman models. Please verify your model before ordering. - Safety: helps maintain safe braking by ensuring the brake system operates with correct pressure information. - Durability: robust construction designed to withstand the demanding brake-system environment for long-lasting reliability. - Use scenarios: 1) Replacing a worn or failed brake pressure switch during routine maintenance on Polaris vehicles. 2) Restoring braking feedback after a sensor fault during off-road use. 3) Adding a reliable replacement as part of preventive maintenance for Polaris Ace, Brutus, RZR, and Sportsman models.